Update.

Makefile

@@ -107,90 +107,99 @@ TEST_ENUMS_OBJECTS = $(TEST_ENUMS_SOURCES:.c=.o)
 TEST_COLLECTIONS_SOURCES = tests/test_collections.c
 TEST_COLLECTIONS_OBJECTS = $(TEST_COLLECTIONS_SOURCES:.c=.o)
 
+UNITTEST_SOURCES = tests/unittest.c
+UNITTEST_OBJECTS = $(UNITTEST_SOURCES:.c=.o)
+
+TEST_UNITTEST_DEMO_SOURCES = tests/test_unittest_demo.c
+TEST_UNITTEST_DEMO_OBJECTS = $(TEST_UNITTEST_DEMO_SOURCES:.c=.o)
+
 all: test_lexer test_parser test_semantic test_ir test_runtime test_strings test_arrays test_objects test_instance_methods test_fileio test_dowhile test_switch test_math test_string_methods test_static test_interfaces test_exceptions test_ternary test_bitwise test_enhanced_for test_array_init test_instanceof test_shortcircuit test_multidim_arrays test_static_init test_negative test_enums test_collections
 
-test_lexer: $(LEXER_OBJECTS) $(TEST_LEXER_OBJECTS)
+test_lexer: $(LEXER_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_LEXER_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_parser: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TEST_PARSER_OBJECTS)
+test_parser: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_PARSER_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_semantic: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(TEST_SEMANTIC_OBJECTS)
+test_semantic: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_SEMANTIC_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_ir: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) runtime/labeltable.o $(TEST_IR_OBJECTS)
+test_ir: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) runtime/labeltable.o $(UNITTEST_OBJECTS) $(TEST_IR_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_runtime: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_RUNTIME_OBJECTS)
+test_runtime: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_RUNTIME_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_strings: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_STRINGS_OBJECTS)
+test_strings: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_STRINGS_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_arrays: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_ARRAYS_OBJECTS)
+test_arrays: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_ARRAYS_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_objects: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_OBJECTS_OBJECTS)
+test_objects: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_OBJECTS_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_instance_methods: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_INSTANCE_OBJECTS)
+test_instance_methods: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_INSTANCE_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_fileio: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_FILEIO_OBJECTS)
+test_fileio: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_FILEIO_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_dowhile: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_DOWHILE_OBJECTS)
+test_dowhile: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_DOWHILE_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_switch: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_SWITCH_OBJECTS)
+test_switch: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_SWITCH_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_math: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_MATH_OBJECTS)
+test_math: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_MATH_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_string_methods: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_STRING_METHODS_OBJECTS)
+test_string_methods: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_STRING_METHODS_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_static: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_STATIC_OBJECTS)
+test_static: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_STATIC_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_interfaces: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_INTERFACES_OBJECTS)
+test_interfaces: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_INTERFACES_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_exceptions: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_EXCEPTIONS_OBJECTS)
+test_exceptions: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_EXCEPTIONS_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_ternary: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_TERNARY_OBJECTS)
+test_ternary: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_TERNARY_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_bitwise: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_BITWISE_OBJECTS)
+test_bitwise: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_BITWISE_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_enhanced_for: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_ENHANCED_FOR_OBJECTS)
+test_enhanced_for: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_ENHANCED_FOR_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_array_init: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_ARRAY_INIT_OBJECTS)
+test_array_init: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_ARRAY_INIT_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_instanceof: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_INSTANCEOF_OBJECTS)
+test_instanceof: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_INSTANCEOF_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_shortcircuit: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_SHORTCIRCUIT_OBJECTS)
+test_shortcircuit: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_SHORTCIRCUIT_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_multidim_arrays: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_MULTIDIM_ARRAYS_OBJECTS)
+test_multidim_arrays: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_MULTIDIM_ARRAYS_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_static_init: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_STATIC_INIT_OBJECTS)
+test_static_init: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_STATIC_INIT_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_negative: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_NEGATIVE_OBJECTS)
+test_negative: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_NEGATIVE_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_enums: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_ENUMS_OBJECTS)
+test_enums: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_ENUMS_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
-test_collections: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(TEST_COLLECTIONS_OBJECTS)
+test_collections: $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_COLLECTIONS_OBJECTS)
+	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
+
+test_unittest_demo: $(UNITTEST_OBJECTS) $(TEST_UNITTEST_DEMO_OBJECTS)
 	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
 %.o: %.c
@@ -255,12 +264,12 @@ pgo: test_benchmark_pgo
 
 clean:
 	rm -f $(LEXER_OBJECTS) $(PARSER_OBJECTS) $(TYPES_OBJECTS) $(SEMANTIC_OBJECTS) $(IR_OBJECTS) $(RUNTIME_OBJECTS) \
-	      $(PHASE0_OBJECTS) \
+	      $(PHASE0_OBJECTS) $(UNITTEST_OBJECTS) $(TEST_UNITTEST_DEMO_OBJECTS) \
 	      $(TEST_LEXER_OBJECTS) $(TEST_PARSER_OBJECTS) $(TEST_SEMANTIC_OBJECTS) $(TEST_IR_OBJECTS) $(TEST_RUNTIME_OBJECTS) \
 	      $(TEST_STRINGS_OBJECTS) $(TEST_ARRAYS_OBJECTS) $(TEST_OBJECTS_OBJECTS) $(TEST_INSTANCE_OBJECTS) $(TEST_FILEIO_OBJECTS) \
 	      $(TEST_DOWHILE_OBJECTS) $(TEST_SWITCH_OBJECTS) $(TEST_MATH_OBJECTS) $(TEST_STRING_METHODS_OBJECTS) $(TEST_STATIC_OBJECTS) $(TEST_INTERFACES_OBJECTS) $(TEST_EXCEPTIONS_OBJECTS) $(TEST_TERNARY_OBJECTS) $(TEST_BITWISE_OBJECTS) $(TEST_ENHANCED_FOR_OBJECTS) $(TEST_ARRAY_INIT_OBJECTS) $(TEST_INSTANCEOF_OBJECTS) $(TEST_SHORTCIRCUIT_OBJECTS) $(TEST_MULTIDIM_ARRAYS_OBJECTS) $(TEST_STATIC_INIT_OBJECTS) $(TEST_NEGATIVE_OBJECTS) $(TEST_ENUMS_OBJECTS) $(TEST_COLLECTIONS_OBJECTS) $(TEST_BENCHMARK_OBJECTS) \
 	      test_lexer test_parser test_semantic test_ir test_runtime test_strings test_arrays test_objects test_instance_methods test_fileio test_dowhile test_switch test_math test_string_methods test_static test_interfaces test_exceptions test_ternary test_bitwise test_enhanced_for test_array_init test_instanceof test_shortcircuit test_multidim_arrays test_static_init test_negative test_enums test_collections test_benchmark \
-	      test_nanbox test_fastframe test_labeltable test_methodcache test_benchmark_pgo *.gcda */*.gcda
+	      test_nanbox test_fastframe test_labeltable test_methodcache test_benchmark_pgo test_unittest_demo *.gcda */*.gcda
 
 .PHONY: all clean benchmark test_phase0 pgo test_benchmark_pgo_gen pgo_run test_benchmark_pgo test
 

semantic/semantic.c

@@ -267,6 +267,9 @@ static RavaType_t* _rava_semantic_check_expression(RavaSemanticAnalyzer_t *analy
             if (strcmp(name, "Files") == 0) {
                 return rava_type_from_name("Files");
             }
+            if (strcmp(name, "Math") == 0) {
+                return rava_type_from_name("Math");
+            }
 
             RavaSymbol_t *symbol = rava_symbol_table_resolve(analyzer->symbol_table, name);
             if (!symbol) {

tests/test_array_init.c

@@ -1,97 +1,54 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-static int test_count = 0;
+UnittestTestResult_t* test_simple_array_init(void) {
-static int pass_count = 0;
+    UNITTEST_BEGIN_TEST("TestArrayInit", "test_simple_array_init");
 
-static void run_test_int(const char* name, const char* source, int expected) {
+    RAVA_TEST_RUN(_unittest_result,
-    test_count++;
-
-    RavaLexer_t* lexer = rava_lexer_create(source);
-    RavaParser_t* parser = rava_parser_create(lexer);
-    RavaASTNode_t* ast = rava_parser_parse(parser);
-
-    if (!ast || parser->had_error) {
-        printf("FAIL: %s - Parse error: %s\n", name, parser->error_message ? parser->error_message : "unknown");
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaSemanticAnalyzer_t* analyzer = rava_semantic_analyzer_create();
-    rava_semantic_analyze(analyzer, ast);
-
-    RavaIRGenerator_t* ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t* program = rava_ir_generate(ir_gen, ast);
-
-    RavaVM_t* vm = rava_vm_create(program);
-
-    if (!rava_vm_execute(vm, "Test", "main")) {
-        printf("FAIL: %s - Runtime error: %s\n", name, vm->error_message ? vm->error_message : "unknown");
-        rava_vm_destroy(vm);
-        rava_program_destroy(program);
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaValue_t result = rava_vm_get_result(vm);
-    int32_t result_int = rava_value_as_int(result);
-
-    if (result_int == expected) {
-        printf("PASS: %s (result=%d)\n", name, result_int);
-        pass_count++;
-    } else {
-        printf("FAIL: %s (expected=%d, got=%d)\n", name, expected, result_int);
-    }
-
-    rava_vm_destroy(vm);
-    rava_program_destroy(program);
-    rava_ir_generator_destroy(ir_gen);
-    rava_semantic_analyzer_destroy(analyzer);
-    rava_ast_node_destroy(ast);
-    rava_parser_destroy(parser);
-    rava_lexer_destroy(lexer);
-}
-
-int main(void) {
-    printf("=== Array Initializer Tests ===\n\n");
-
-    run_test_int("simple array init",
         "public class Test {\n"
         "    public static int main() {\n"
         "        int[] arr = {1, 2, 3};\n"
         "        return arr[0] + arr[1] + arr[2];\n"
         "    }\n"
-        "}\n", 6);
+        "}\n",
+        "Test", "main", 6, "simple array init sum should return 6");
 
-    run_test_int("array init with expressions",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_array_init_with_expressions(void) {
+    UNITTEST_BEGIN_TEST("TestArrayInit", "test_array_init_with_expressions");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int[] arr = {1 + 1, 2 * 2, 3 + 3};\n"
         "        return arr[0] + arr[1] + arr[2];\n"
         "    }\n"
-        "}\n", 12);
+        "}\n",
+        "Test", "main", 12, "array init with expressions sum should return 12");
 
-    run_test_int("single element array",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_single_element_array(void) {
+    UNITTEST_BEGIN_TEST("TestArrayInit", "test_single_element_array");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int[] arr = {42};\n"
         "        return arr[0];\n"
         "    }\n"
-        "}\n", 42);
+        "}\n",
+        "Test", "main", 42, "single element array should return 42");
 
-    run_test_int("array init length",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_array_init_length(void) {
+    UNITTEST_BEGIN_TEST("TestArrayInit", "test_array_init_length");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int[] arr = {5, 10, 15, 20};\n"
@@ -101,25 +58,67 @@ int main(void) {
         "        }\n"
         "        return sum;\n"
         "    }\n"
-        "}\n", 50);
+        "}\n",
+        "Test", "main", 50, "array init length loop sum should return 50");
 
-    run_test_int("array init with negative values",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_array_init_negative_values(void) {
+    UNITTEST_BEGIN_TEST("TestArrayInit", "test_array_init_negative_values");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int[] arr = {-1, -2, -3};\n"
         "        return arr[0] + arr[1] + arr[2];\n"
         "    }\n"
-        "}\n", -6);
+        "}\n",
+        "Test", "main", -6, "array init with negative values sum should return -6");
 
-    run_test_int("array init with zero",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_array_init_with_zero(void) {
+    UNITTEST_BEGIN_TEST("TestArrayInit", "test_array_init_with_zero");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int[] arr = {0, 0, 0};\n"
         "        return arr[0] + arr[1] + arr[2];\n"
         "    }\n"
-        "}\n", 0);
+        "}\n",
+        "Test", "main", 0, "array init with zeros sum should return 0");
 
-    printf("\n=== Results: %d/%d tests passed ===\n", pass_count, test_count);
+    UNITTEST_END_TEST();
-
+}
-    return (pass_count == test_count) ? 0 : 1;
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Array Initializer Tests");
+
+    UnittestTestCase_t *tc = unittest_test_case_create("TestArrayInit");
+    unittest_test_case_add_result(tc, test_simple_array_init());
+    unittest_test_case_add_result(tc, test_array_init_with_expressions());
+    unittest_test_case_add_result(tc, test_single_element_array());
+    unittest_test_case_add_result(tc, test_array_init_length());
+    unittest_test_case_add_result(tc, test_array_init_negative_values());
+    unittest_test_case_add_result(tc, test_array_init_with_zero());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_arrays.c

@@ -1,77 +1,36 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-static char* read_file(const char *filename) {
+UnittestTestResult_t* test_array_operations_example(void) {
-    FILE *file = fopen(filename, "r");
+    UNITTEST_BEGIN_TEST("TestArrays", "test_array_operations_example");
-    if (!file) return NULL;
+
-    fseek(file, 0, SEEK_END);
+    RAVA_TEST_FILE_EXECUTES(_unittest_result,
-    long size = ftell(file);
+        "examples/11_ArrayOperations.java",
-    fseek(file, 0, SEEK_SET);
+        "ArrayOperations", "main",
-    char *content = malloc(size + 1);
+        "11_ArrayOperations.java should execute successfully");
-    size_t read_bytes = fread(content, 1, size, file); (void)read_bytes;
+
-    content[size] = '\0';
+    UNITTEST_END_TEST();
-    fclose(file);
-    return content;
 }
 
-int main() {
+int main(int argc, char **argv) {
-    char *source = read_file("examples/11_ArrayOperations.java");
+    UnittestConfig_t *config = unittest_config_create();
-    if (!source) {
+    config->verbosity = 2;
-        printf("Failed to read file\n");
+
-        return 1;
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
     }
 
-    RavaLexer_t *lexer = rava_lexer_create(source);
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Array Example Tests");
-    RavaParser_t *parser = rava_parser_create(lexer);
-    RavaASTNode_t *ast = rava_parser_parse(parser);
 
-    if (parser->had_error) {
+    UnittestTestCase_t *tc = unittest_test_case_create("TestArrays");
-        printf("Parse error: %s\n", parser->error_message);
+    unittest_test_case_add_result(tc, test_array_operations_example());
-        free(source);
+    unittest_test_suite_add_test_case(suite, tc);
-        return 1;
-    }
 
-    printf("Parse: OK\n");
+    unittest_generate_report(suite, config);
 
-    RavaSemanticAnalyzer_t *analyzer = rava_semantic_analyzer_create();
+    int failures = suite->total_failed + suite->total_errors;
-    if (!rava_semantic_analyze(analyzer, ast)) {
+    unittest_test_suite_destroy(suite);
-        printf("Semantic error: %s\n", analyzer->error_message);
+    unittest_config_destroy(config);
-        free(source);
-        return 1;
-    }
 
-    printf("Semantic: OK\n");
+    return failures > 0 ? 1 : 0;
-
-    RavaIRGenerator_t *ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t *program = rava_ir_generate(ir_gen, ast);
-
-    if (!program) {
-        printf("IR generation failed\n");
-        free(source);
-        return 1;
-    }
-
-    printf("IR Gen: OK\n");
-    printf("\nOutput:\n");
-
-    RavaVM_t *vm = rava_vm_create(program);
-    if (!rava_vm_execute(vm, "ArrayOperations", "main")) {
-        printf("Runtime error: %s\n", vm->error_message);
-        rava_vm_destroy(vm);
-        free(source);
-        return 1;
-    }
-
-    printf("\nExecution: OK\n");
-
-    rava_vm_destroy(vm);
-    free(source);
-    return 0;
 }

tests/test_bitwise.c

@@ -1,214 +1,301 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-static int test_count = 0;
+UnittestTestResult_t* test_bitwise_and_with_vars(void) {
-static int pass_count = 0;
+    UNITTEST_BEGIN_TEST("TestBitwise", "test_bitwise_and_with_vars");
 
-static void run_test_int(const char* name, const char* source, int expected) {
+    RAVA_TEST_RUN(_unittest_result,
-    test_count++;
-
-    RavaLexer_t* lexer = rava_lexer_create(source);
-    RavaParser_t* parser = rava_parser_create(lexer);
-    RavaASTNode_t* ast = rava_parser_parse(parser);
-
-    if (!ast || parser->had_error) {
-        printf("FAIL: %s - Parse error: %s\n", name, parser->error_message ? parser->error_message : "unknown");
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaSemanticAnalyzer_t* analyzer = rava_semantic_analyzer_create();
-    rava_semantic_analyze(analyzer, ast);
-
-    RavaIRGenerator_t* ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t* program = rava_ir_generate(ir_gen, ast);
-
-    RavaVM_t* vm = rava_vm_create(program);
-
-    if (!rava_vm_execute(vm, "Test", "main")) {
-        printf("FAIL: %s - Runtime error: %s\n", name, vm->error_message ? vm->error_message : "unknown");
-        rava_vm_destroy(vm);
-        rava_program_destroy(program);
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaValue_t result = rava_vm_get_result(vm);
-    int32_t result_int = rava_value_as_int(result);
-
-    if (result_int == expected) {
-        printf("PASS: %s (result=%d)\n", name, result_int);
-        pass_count++;
-    } else {
-        printf("FAIL: %s (expected=%d, got=%d)\n", name, expected, result_int);
-    }
-
-    rava_vm_destroy(vm);
-    rava_program_destroy(program);
-    rava_ir_generator_destroy(ir_gen);
-    rava_semantic_analyzer_destroy(analyzer);
-    rava_ast_node_destroy(ast);
-    rava_parser_destroy(parser);
-    rava_lexer_destroy(lexer);
-}
-
-int main(void) {
-    printf("=== Bitwise Operator Tests ===\n\n");
-
-    run_test_int("bitwise AND with vars",
         "public class Test {\n"
         "    public static int main() {\n"
         "        int a = 12;\n"
         "        int b = 10;\n"
         "        return a & b;\n"
         "    }\n"
-        "}\n", 8);
+        "}\n",
+        "Test", "main", 8, "bitwise AND with vars 12 & 10 should return 8");
 
-    run_test_int("bitwise OR with vars",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_bitwise_or_with_vars(void) {
+    UNITTEST_BEGIN_TEST("TestBitwise", "test_bitwise_or_with_vars");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int a = 12;\n"
         "        int b = 10;\n"
         "        return a | b;\n"
         "    }\n"
-        "}\n", 14);
+        "}\n",
+        "Test", "main", 14, "bitwise OR with vars 12 | 10 should return 14");
 
-    run_test_int("bitwise XOR",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_bitwise_xor(void) {
+    UNITTEST_BEGIN_TEST("TestBitwise", "test_bitwise_xor");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        return 12 ^ 10;\n"
         "    }\n"
-        "}\n", 6);
+        "}\n",
+        "Test", "main", 6, "bitwise XOR 12 ^ 10 should return 6");
 
-    run_test_int("left shift",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_left_shift(void) {
+    UNITTEST_BEGIN_TEST("TestBitwise", "test_left_shift");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        return 1 << 4;\n"
         "    }\n"
-        "}\n", 16);
+        "}\n",
+        "Test", "main", 16, "left shift 1 << 4 should return 16");
 
-    run_test_int("right shift",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_right_shift(void) {
+    UNITTEST_BEGIN_TEST("TestBitwise", "test_right_shift");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        return 16 >> 2;\n"
         "    }\n"
-        "}\n", 4);
+        "}\n",
+        "Test", "main", 4, "right shift 16 >> 2 should return 4");
 
-    run_test_int("unsigned right shift",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_unsigned_right_shift(void) {
+    UNITTEST_BEGIN_TEST("TestBitwise", "test_unsigned_right_shift");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        return 16 >>> 2;\n"
         "    }\n"
-        "}\n", 4);
+        "}\n",
+        "Test", "main", 4, "unsigned right shift 16 >>> 2 should return 4");
 
-    run_test_int("combined bitwise ops",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_combined_bitwise_ops(void) {
+    UNITTEST_BEGIN_TEST("TestBitwise", "test_combined_bitwise_ops");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int a = 5;\n"
         "        int b = 3;\n"
         "        return (a & b) | (a ^ b);\n"
         "    }\n"
-        "}\n", 7);
+        "}\n",
+        "Test", "main", 7, "combined bitwise ops (5 & 3) | (5 ^ 3) should return 7");
 
-    run_test_int("shift with variable",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_shift_with_variable(void) {
+    UNITTEST_BEGIN_TEST("TestBitwise", "test_shift_with_variable");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 2;\n"
         "        return 1 << x;\n"
         "    }\n"
-        "}\n", 4);
+        "}\n",
+        "Test", "main", 4, "shift with variable 1 << 2 should return 4");
 
-    run_test_int("bitwise mask",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_bitwise_mask(void) {
+    UNITTEST_BEGIN_TEST("TestBitwise", "test_bitwise_mask");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int value = 255;\n"
         "        int mask = 0x0F;\n"
         "        return value & mask;\n"
         "    }\n"
-        "}\n", 15);
+        "}\n",
+        "Test", "main", 15, "bitwise mask 255 & 0x0F should return 15");
 
-    run_test_int("bit toggle with XOR",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_bit_toggle_with_xor(void) {
+    UNITTEST_BEGIN_TEST("TestBitwise", "test_bit_toggle_with_xor");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int flags = 5;\n"
         "        return flags ^ 1;\n"
         "    }\n"
-        "}\n", 4);
+        "}\n",
+        "Test", "main", 4, "bit toggle with XOR 5 ^ 1 should return 4");
 
-    run_test_int("bitwise NOT",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_bitwise_not_zero(void) {
+    UNITTEST_BEGIN_TEST("TestBitwise", "test_bitwise_not_zero");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 0;\n"
         "        return ~x;\n"
         "    }\n"
-        "}\n", -1);
+        "}\n",
+        "Test", "main", -1, "bitwise NOT ~0 should return -1");
 
-    run_test_int("bitwise NOT with value",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_bitwise_not_with_value(void) {
+    UNITTEST_BEGIN_TEST("TestBitwise", "test_bitwise_not_with_value");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 5;\n"
         "        return ~x;\n"
         "    }\n"
-        "}\n", -6);
+        "}\n",
+        "Test", "main", -6, "bitwise NOT ~5 should return -6");
 
-    run_test_int("compound AND assign",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_compound_and_assign(void) {
+    UNITTEST_BEGIN_TEST("TestBitwise", "test_compound_and_assign");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 15;\n"
         "        x &= 7;\n"
         "        return x;\n"
         "    }\n"
-        "}\n", 7);
+        "}\n",
+        "Test", "main", 7, "compound AND assign 15 &= 7 should return 7");
 
-    run_test_int("compound OR assign",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_compound_or_assign(void) {
+    UNITTEST_BEGIN_TEST("TestBitwise", "test_compound_or_assign");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 8;\n"
         "        x |= 3;\n"
         "        return x;\n"
         "    }\n"
-        "}\n", 11);
+        "}\n",
+        "Test", "main", 11, "compound OR assign 8 |= 3 should return 11");
 
-    run_test_int("compound XOR assign",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_compound_xor_assign(void) {
+    UNITTEST_BEGIN_TEST("TestBitwise", "test_compound_xor_assign");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 12;\n"
         "        x ^= 5;\n"
         "        return x;\n"
         "    }\n"
-        "}\n", 9);
+        "}\n",
+        "Test", "main", 9, "compound XOR assign 12 ^= 5 should return 9");
 
-    run_test_int("compound left shift assign",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_compound_left_shift_assign(void) {
+    UNITTEST_BEGIN_TEST("TestBitwise", "test_compound_left_shift_assign");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 1;\n"
         "        x <<= 3;\n"
         "        return x;\n"
         "    }\n"
-        "}\n", 8);
+        "}\n",
+        "Test", "main", 8, "compound left shift assign 1 <<= 3 should return 8");
 
-    run_test_int("compound right shift assign",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_compound_right_shift_assign(void) {
+    UNITTEST_BEGIN_TEST("TestBitwise", "test_compound_right_shift_assign");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 16;\n"
         "        x >>= 2;\n"
         "        return x;\n"
         "    }\n"
-        "}\n", 4);
+        "}\n",
+        "Test", "main", 4, "compound right shift assign 16 >>= 2 should return 4");
 
-    printf("\n=== Results: %d/%d tests passed ===\n", pass_count, test_count);
+    UNITTEST_END_TEST();
-
+}
-    return (pass_count == test_count) ? 0 : 1;
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Bitwise Operator Tests");
+
+    UnittestTestCase_t *tc = unittest_test_case_create("TestBitwise");
+    unittest_test_case_add_result(tc, test_bitwise_and_with_vars());
+    unittest_test_case_add_result(tc, test_bitwise_or_with_vars());
+    unittest_test_case_add_result(tc, test_bitwise_xor());
+    unittest_test_case_add_result(tc, test_left_shift());
+    unittest_test_case_add_result(tc, test_right_shift());
+    unittest_test_case_add_result(tc, test_unsigned_right_shift());
+    unittest_test_case_add_result(tc, test_combined_bitwise_ops());
+    unittest_test_case_add_result(tc, test_shift_with_variable());
+    unittest_test_case_add_result(tc, test_bitwise_mask());
+    unittest_test_case_add_result(tc, test_bit_toggle_with_xor());
+    unittest_test_case_add_result(tc, test_bitwise_not_zero());
+    unittest_test_case_add_result(tc, test_bitwise_not_with_value());
+    unittest_test_case_add_result(tc, test_compound_and_assign());
+    unittest_test_case_add_result(tc, test_compound_or_assign());
+    unittest_test_case_add_result(tc, test_compound_xor_assign());
+    unittest_test_case_add_result(tc, test_compound_left_shift_assign());
+    unittest_test_case_add_result(tc, test_compound_right_shift_assign());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_collections.c

@@ -1,100 +1,24 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-static int test_count = 0;
+UnittestTestResult_t* test_arraylist_create_size(void) {
-static int pass_count = 0;
+    UNITTEST_BEGIN_TEST("TestCollections", "test_arraylist_create_size");
 
-static int run_test(const char *name, const char *source, int expected) {
+    RAVA_TEST_RUN(_unittest_result,
-    test_count++;
-
-    RavaLexer_t *lexer = rava_lexer_create(source);
-    RavaParser_t *parser = rava_parser_create(lexer);
-    RavaASTNode_t *ast = rava_parser_parse(parser);
-
-    if (parser->had_error) {
-        printf("FAIL: %s (parse error)\n", name);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return 0;
-    }
-
-    RavaSemanticAnalyzer_t *analyzer = rava_semantic_analyzer_create();
-    if (!rava_semantic_analyze(analyzer, ast)) {
-        printf("FAIL: %s (semantic error)\n", name);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return 0;
-    }
-
-    RavaIRGenerator_t *ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t *program = rava_ir_generate(ir_gen, ast);
-
-    if (!program) {
-        printf("FAIL: %s (IR error)\n", name);
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return 0;
-    }
-
-    RavaVM_t *vm = rava_vm_create(program);
-
-    if (!rava_vm_execute(vm, "Test", "main")) {
-        printf("FAIL: %s (runtime error)\n", name);
-        rava_vm_destroy(vm);
-        rava_program_destroy(program);
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return 0;
-    }
-
-    RavaValue_t result = rava_vm_get_result(vm);
-    int actual = rava_value_as_int(result);
-
-    rava_vm_destroy(vm);
-    rava_program_destroy(program);
-    rava_ir_generator_destroy(ir_gen);
-    rava_semantic_analyzer_destroy(analyzer);
-    rava_ast_node_destroy(ast);
-    rava_parser_destroy(parser);
-    rava_lexer_destroy(lexer);
-
-    if (actual == expected) {
-        printf("PASS: %s\n", name);
-        pass_count++;
-        return 1;
-    } else {
-        printf("FAIL: %s (expected %d, got %d)\n", name, expected, actual);
-        return 0;
-    }
-}
-
-int main(void) {
-    printf("=== ArrayList Tests ===\n");
-
-    run_test("ArrayList create and size",
         "public class Test {\n"
         "    public static int main() {\n"
         "        ArrayList list = new ArrayList();\n"
         "        return list.size();\n"
         "    }\n"
-        "}\n", 0);
+        "}\n",
+        "Test", "main", 0, "new ArrayList().size() should return 0");
 
-    run_test("ArrayList add and size",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_arraylist_add_size(void) {
+    UNITTEST_BEGIN_TEST("TestCollections", "test_arraylist_add_size");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        ArrayList list = new ArrayList();\n"
@@ -103,18 +27,32 @@ int main(void) {
         "        list.add(30);\n"
         "        return list.size();\n"
         "    }\n"
-        "}\n", 3);
+        "}\n",
+        "Test", "main", 3, "ArrayList with 3 elements should have size 3");
 
-    run_test("ArrayList add and get",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_arraylist_add_get(void) {
+    UNITTEST_BEGIN_TEST("TestCollections", "test_arraylist_add_get");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        ArrayList list = new ArrayList();\n"
         "        list.add(42);\n"
         "        return list.get(0);\n"
         "    }\n"
-        "}\n", 42);
+        "}\n",
+        "Test", "main", 42, "list.get(0) should return 42");
 
-    run_test("ArrayList set",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_arraylist_set(void) {
+    UNITTEST_BEGIN_TEST("TestCollections", "test_arraylist_set");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        ArrayList list = new ArrayList();\n"
@@ -122,9 +60,16 @@ int main(void) {
         "        list.set(0, 99);\n"
         "        return list.get(0);\n"
         "    }\n"
-        "}\n", 99);
+        "}\n",
+        "Test", "main", 99, "list.set(0, 99) then get(0) should return 99");
 
-    run_test("ArrayList isEmpty true",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_arraylist_isEmpty_true(void) {
+    UNITTEST_BEGIN_TEST("TestCollections", "test_arraylist_isEmpty_true");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        ArrayList list = new ArrayList();\n"
@@ -133,9 +78,16 @@ int main(void) {
         "        }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 1);
+        "}\n",
+        "Test", "main", 1, "new ArrayList().isEmpty() should return true");
 
-    run_test("ArrayList isEmpty false",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_arraylist_isEmpty_false(void) {
+    UNITTEST_BEGIN_TEST("TestCollections", "test_arraylist_isEmpty_false");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        ArrayList list = new ArrayList();\n"
@@ -145,9 +97,16 @@ int main(void) {
         "        }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 0);
+        "}\n",
+        "Test", "main", 0, "non-empty list.isEmpty() should return false");
 
-    run_test("ArrayList clear",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_arraylist_clear(void) {
+    UNITTEST_BEGIN_TEST("TestCollections", "test_arraylist_clear");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        ArrayList list = new ArrayList();\n"
@@ -156,9 +115,16 @@ int main(void) {
         "        list.clear();\n"
         "        return list.size();\n"
         "    }\n"
-        "}\n", 0);
+        "}\n",
+        "Test", "main", 0, "list.clear() should make size 0");
 
-    run_test("ArrayList remove",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_arraylist_remove(void) {
+    UNITTEST_BEGIN_TEST("TestCollections", "test_arraylist_remove");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        ArrayList list = new ArrayList();\n"
@@ -168,9 +134,16 @@ int main(void) {
         "        int removed = list.remove(1);\n"
         "        return removed;\n"
         "    }\n"
-        "}\n", 20);
+        "}\n",
+        "Test", "main", 20, "list.remove(1) should return 20");
 
-    run_test("ArrayList sum elements",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_arraylist_sum(void) {
+    UNITTEST_BEGIN_TEST("TestCollections", "test_arraylist_sum");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        ArrayList list = new ArrayList();\n"
@@ -184,19 +157,31 @@ int main(void) {
         "        }\n"
         "        return sum;\n"
         "    }\n"
-        "}\n", 10);
+        "}\n",
+        "Test", "main", 10, "sum of ArrayList elements should be 10");
 
-    printf("\n=== HashMap Tests ===\n");
+    UNITTEST_END_TEST();
+}
 
-    run_test("HashMap create and size",
+UnittestTestResult_t* test_hashmap_create_size(void) {
+    UNITTEST_BEGIN_TEST("TestCollections", "test_hashmap_create_size");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        HashMap map = new HashMap();\n"
         "        return map.size();\n"
         "    }\n"
-        "}\n", 0);
+        "}\n",
+        "Test", "main", 0, "new HashMap().size() should return 0");
 
-    run_test("HashMap put and size",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_hashmap_put_size(void) {
+    UNITTEST_BEGIN_TEST("TestCollections", "test_hashmap_put_size");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        HashMap map = new HashMap();\n"
@@ -204,18 +189,32 @@ int main(void) {
         "        map.put(\"b\", 2);\n"
         "        return map.size();\n"
         "    }\n"
-        "}\n", 2);
+        "}\n",
+        "Test", "main", 2, "HashMap with 2 keys should have size 2");
 
-    run_test("HashMap put and get",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_hashmap_put_get(void) {
+    UNITTEST_BEGIN_TEST("TestCollections", "test_hashmap_put_get");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        HashMap map = new HashMap();\n"
         "        map.put(\"key\", 42);\n"
         "        return map.get(\"key\");\n"
         "    }\n"
-        "}\n", 42);
+        "}\n",
+        "Test", "main", 42, "map.get(\"key\") should return 42");
 
-    run_test("HashMap containsKey true",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_hashmap_containsKey_true(void) {
+    UNITTEST_BEGIN_TEST("TestCollections", "test_hashmap_containsKey_true");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        HashMap map = new HashMap();\n"
@@ -225,9 +224,16 @@ int main(void) {
         "        }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 1);
+        "}\n",
+        "Test", "main", 1, "containsKey() for existing key should return true");
 
-    run_test("HashMap containsKey false",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_hashmap_containsKey_false(void) {
+    UNITTEST_BEGIN_TEST("TestCollections", "test_hashmap_containsKey_false");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        HashMap map = new HashMap();\n"
@@ -237,9 +243,16 @@ int main(void) {
         "        }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 0);
+        "}\n",
+        "Test", "main", 0, "containsKey() for missing key should return false");
 
-    run_test("HashMap remove",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_hashmap_remove(void) {
+    UNITTEST_BEGIN_TEST("TestCollections", "test_hashmap_remove");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        HashMap map = new HashMap();\n"
@@ -248,9 +261,16 @@ int main(void) {
         "        int removed = map.remove(\"a\");\n"
         "        return removed + map.size();\n"
         "    }\n"
-        "}\n", 11);
+        "}\n",
+        "Test", "main", 11, "remove + size should return 11");
 
-    run_test("HashMap clear",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_hashmap_clear(void) {
+    UNITTEST_BEGIN_TEST("TestCollections", "test_hashmap_clear");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        HashMap map = new HashMap();\n"
@@ -259,9 +279,16 @@ int main(void) {
         "        map.clear();\n"
         "        return map.size();\n"
         "    }\n"
-        "}\n", 0);
+        "}\n",
+        "Test", "main", 0, "map.clear() should make size 0");
 
-    run_test("HashMap update value",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_hashmap_update(void) {
+    UNITTEST_BEGIN_TEST("TestCollections", "test_hashmap_update");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        HashMap map = new HashMap();\n"
@@ -269,10 +296,51 @@ int main(void) {
         "        map.put(\"key\", 20);\n"
         "        return map.get(\"key\");\n"
         "    }\n"
-        "}\n", 20);
+        "}\n",
+        "Test", "main", 20, "updating key should return new value 20");
 
-    printf("\n=== Results ===\n");
+    UNITTEST_END_TEST();
-    printf("Passed: %d/%d\n", pass_count, test_count);
+}
-
+
-    return (pass_count == test_count) ? 0 : 1;
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Collections Tests");
+
+    UnittestTestCase_t *tc_arraylist = unittest_test_case_create("TestArrayList");
+    unittest_test_case_add_result(tc_arraylist, test_arraylist_create_size());
+    unittest_test_case_add_result(tc_arraylist, test_arraylist_add_size());
+    unittest_test_case_add_result(tc_arraylist, test_arraylist_add_get());
+    unittest_test_case_add_result(tc_arraylist, test_arraylist_set());
+    unittest_test_case_add_result(tc_arraylist, test_arraylist_isEmpty_true());
+    unittest_test_case_add_result(tc_arraylist, test_arraylist_isEmpty_false());
+    unittest_test_case_add_result(tc_arraylist, test_arraylist_clear());
+    unittest_test_case_add_result(tc_arraylist, test_arraylist_remove());
+    unittest_test_case_add_result(tc_arraylist, test_arraylist_sum());
+    unittest_test_suite_add_test_case(suite, tc_arraylist);
+
+    UnittestTestCase_t *tc_hashmap = unittest_test_case_create("TestHashMap");
+    unittest_test_case_add_result(tc_hashmap, test_hashmap_create_size());
+    unittest_test_case_add_result(tc_hashmap, test_hashmap_put_size());
+    unittest_test_case_add_result(tc_hashmap, test_hashmap_put_get());
+    unittest_test_case_add_result(tc_hashmap, test_hashmap_containsKey_true());
+    unittest_test_case_add_result(tc_hashmap, test_hashmap_containsKey_false());
+    unittest_test_case_add_result(tc_hashmap, test_hashmap_remove());
+    unittest_test_case_add_result(tc_hashmap, test_hashmap_clear());
+    unittest_test_case_add_result(tc_hashmap, test_hashmap_update());
+    unittest_test_suite_add_test_case(suite, tc_hashmap);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_dowhile.c

@@ -1,73 +1,9 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-static int test_count = 0;
+UnittestTestResult_t* test_simple_dowhile(void) {
-static int pass_count = 0;
+    UNITTEST_BEGIN_TEST("TestDoWhile", "test_simple_dowhile");
 
-static void run_test(const char* name, const char* source, int expected) {
+    RAVA_TEST_RUN(_unittest_result,
-    test_count++;
-
-    RavaLexer_t* lexer = rava_lexer_create(source);
-    RavaParser_t* parser = rava_parser_create(lexer);
-    RavaASTNode_t* ast = rava_parser_parse(parser);
-
-    if (!ast || parser->had_error) {
-        printf("FAIL: %s - Parse error\n", name);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaSemanticAnalyzer_t* analyzer = rava_semantic_analyzer_create();
-    rava_semantic_analyze(analyzer, ast);
-
-    RavaIRGenerator_t* ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t* program = rava_ir_generate(ir_gen, ast);
-
-    RavaVM_t* vm = rava_vm_create(program);
-
-    if (!rava_vm_execute(vm, "Test", "main")) {
-        printf("FAIL: %s - Runtime error\n", name);
-        rava_vm_destroy(vm);
-        rava_program_destroy(program);
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaValue_t result = rava_vm_get_result(vm);
-    int32_t result_int = rava_value_as_int(result);
-
-    if (result_int == expected) {
-        printf("PASS: %s (result=%d)\n", name, result_int);
-        pass_count++;
-    } else {
-        printf("FAIL: %s (expected=%d, got=%d)\n", name, expected, result_int);
-    }
-
-    rava_vm_destroy(vm);
-    rava_program_destroy(program);
-    rava_ir_generator_destroy(ir_gen);
-    rava_semantic_analyzer_destroy(analyzer);
-    rava_ast_node_destroy(ast);
-    rava_parser_destroy(parser);
-    rava_lexer_destroy(lexer);
-}
-
-int main(void) {
-    printf("=== Do-While Loop Tests ===\n\n");
-
-    run_test("Simple do-while",
         "public class Test {\n"
         "    public static int main() {\n"
         "        int i = 0;\n"
@@ -76,9 +12,16 @@ int main(void) {
         "        } while (i < 5);\n"
         "        return i;\n"
         "    }\n"
-        "}\n", 5);
+        "}\n",
+        "Test", "main", 5, "do-while loop should iterate until i=5");
 
-    run_test("Do-while sum",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_dowhile_sum(void) {
+    UNITTEST_BEGIN_TEST("TestDoWhile", "test_dowhile_sum");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int sum = 0;\n"
@@ -89,9 +32,16 @@ int main(void) {
         "        } while (i <= 10);\n"
         "        return sum;\n"
         "    }\n"
-        "}\n", 55);
+        "}\n",
+        "Test", "main", 55, "sum of 1..10 should be 55");
 
-    run_test("Do-while executes at least once",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_dowhile_executes_once(void) {
+    UNITTEST_BEGIN_TEST("TestDoWhile", "test_dowhile_executes_once");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 0;\n"
@@ -100,9 +50,16 @@ int main(void) {
         "        } while (false);\n"
         "        return x;\n"
         "    }\n"
-        "}\n", 42);
+        "}\n",
+        "Test", "main", 42, "do-while executes at least once");
 
-    run_test("Do-while with break",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_dowhile_with_break(void) {
+    UNITTEST_BEGIN_TEST("TestDoWhile", "test_dowhile_with_break");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int i = 0;\n"
@@ -114,9 +71,16 @@ int main(void) {
         "        } while (i < 10);\n"
         "        return i;\n"
         "    }\n"
-        "}\n", 3);
+        "}\n",
+        "Test", "main", 3, "break at i=3 should exit loop");
 
-    run_test("Nested do-while",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_nested_dowhile(void) {
+    UNITTEST_BEGIN_TEST("TestDoWhile", "test_nested_dowhile");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int count = 0;\n"
@@ -131,9 +95,36 @@ int main(void) {
         "        } while (i < 2);\n"
         "        return count;\n"
         "    }\n"
-        "}\n", 6);
+        "}\n",
+        "Test", "main", 6, "nested 2x3 iterations should count 6");
 
-    printf("\n=== Results: %d/%d tests passed ===\n", pass_count, test_count);
+    UNITTEST_END_TEST();
-
+}
-    return (pass_count == test_count) ? 0 : 1;
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Do-While Loop Tests");
+
+    UnittestTestCase_t *tc = unittest_test_case_create("TestDoWhile");
+    unittest_test_case_add_result(tc, test_simple_dowhile());
+    unittest_test_case_add_result(tc, test_dowhile_sum());
+    unittest_test_case_add_result(tc, test_dowhile_executes_once());
+    unittest_test_case_add_result(tc, test_dowhile_with_break());
+    unittest_test_case_add_result(tc, test_nested_dowhile());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_enhanced_for.c

@@ -1,73 +1,9 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-static int test_count = 0;
+UnittestTestResult_t* test_sum_array_elements(void) {
-static int pass_count = 0;
+    UNITTEST_BEGIN_TEST("TestEnhancedFor", "test_sum_array_elements");
 
-static void run_test_int(const char* name, const char* source, int expected) {
+    RAVA_TEST_RUN(_unittest_result,
-    test_count++;
-
-    RavaLexer_t* lexer = rava_lexer_create(source);
-    RavaParser_t* parser = rava_parser_create(lexer);
-    RavaASTNode_t* ast = rava_parser_parse(parser);
-
-    if (!ast || parser->had_error) {
-        printf("FAIL: %s - Parse error: %s\n", name, parser->error_message ? parser->error_message : "unknown");
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaSemanticAnalyzer_t* analyzer = rava_semantic_analyzer_create();
-    rava_semantic_analyze(analyzer, ast);
-
-    RavaIRGenerator_t* ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t* program = rava_ir_generate(ir_gen, ast);
-
-    RavaVM_t* vm = rava_vm_create(program);
-
-    if (!rava_vm_execute(vm, "Test", "main")) {
-        printf("FAIL: %s - Runtime error: %s\n", name, vm->error_message ? vm->error_message : "unknown");
-        rava_vm_destroy(vm);
-        rava_program_destroy(program);
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaValue_t result = rava_vm_get_result(vm);
-    int32_t result_int = rava_value_as_int(result);
-
-    if (result_int == expected) {
-        printf("PASS: %s (result=%d)\n", name, result_int);
-        pass_count++;
-    } else {
-        printf("FAIL: %s (expected=%d, got=%d)\n", name, expected, result_int);
-    }
-
-    rava_vm_destroy(vm);
-    rava_program_destroy(program);
-    rava_ir_generator_destroy(ir_gen);
-    rava_semantic_analyzer_destroy(analyzer);
-    rava_ast_node_destroy(ast);
-    rava_parser_destroy(parser);
-    rava_lexer_destroy(lexer);
-}
-
-int main(void) {
-    printf("=== Enhanced For Loop Tests ===\n\n");
-
-    run_test_int("sum array elements",
         "public class Test {\n"
         "    public static int main() {\n"
         "        int[] arr = new int[3];\n"
@@ -80,9 +16,16 @@ int main(void) {
         "        }\n"
         "        return sum;\n"
         "    }\n"
-        "}\n", 6);
+        "}\n",
+        "Test", "main", 6, "sum array elements should return 6");
 
-    run_test_int("count elements",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_count_elements(void) {
+    UNITTEST_BEGIN_TEST("TestEnhancedFor", "test_count_elements");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int[] arr = new int[5];\n"
@@ -92,9 +35,16 @@ int main(void) {
         "        }\n"
         "        return count;\n"
         "    }\n"
-        "}\n", 5);
+        "}\n",
+        "Test", "main", 5, "count elements should return 5");
 
-    run_test_int("find max",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_find_max(void) {
+    UNITTEST_BEGIN_TEST("TestEnhancedFor", "test_find_max");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int[] arr = new int[4];\n"
@@ -110,9 +60,16 @@ int main(void) {
         "        }\n"
         "        return max;\n"
         "    }\n"
-        "}\n", 9);
+        "}\n",
+        "Test", "main", 9, "find max should return 9");
 
-    run_test_int("empty array",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_empty_array(void) {
+    UNITTEST_BEGIN_TEST("TestEnhancedFor", "test_empty_array");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int[] arr = new int[0];\n"
@@ -122,9 +79,35 @@ int main(void) {
         "        }\n"
         "        return sum;\n"
         "    }\n"
-        "}\n", 0);
+        "}\n",
+        "Test", "main", 0, "empty array should return 0");
 
-    printf("\n=== Results: %d/%d tests passed ===\n", pass_count, test_count);
+    UNITTEST_END_TEST();
-
+}
-    return (pass_count == test_count) ? 0 : 1;
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Enhanced For Loop Tests");
+
+    UnittestTestCase_t *tc = unittest_test_case_create("TestEnhancedFor");
+    unittest_test_case_add_result(tc, test_sum_array_elements());
+    unittest_test_case_add_result(tc, test_count_elements());
+    unittest_test_case_add_result(tc, test_find_max());
+    unittest_test_case_add_result(tc, test_empty_array());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_enums.c

@@ -1,123 +1,54 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
 
-static int run_test(const char *name, const char *source, const char *class_name,
+UnittestTestResult_t* test_simple_enum_ordinal(void) {
-                    const char *method_name, int expected) {
+    UNITTEST_BEGIN_TEST("TestEnums", "test_simple_enum_ordinal");
-    printf("Test: %-40s ... ", name);
-    fflush(stdout);
 
-    RavaLexer_t *lexer = rava_lexer_create(source);
+    RAVA_TEST_RUN(_unittest_result,
-    RavaParser_t *parser = rava_parser_create(lexer);
-    RavaASTNode_t *ast = rava_parser_parse(parser);
-
-    if (parser->had_error) {
-        printf("FAIL (parse error: %s)\n", parser->error_message);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return 0;
-    }
-
-    RavaSemanticAnalyzer_t *analyzer = rava_semantic_analyzer_create();
-    if (!rava_semantic_analyze(analyzer, ast)) {
-        printf("FAIL (semantic error: %s)\n", analyzer->error_message);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return 0;
-    }
-
-    RavaIRGenerator_t *ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t *program = rava_ir_generate(ir_gen, ast);
-
-    if (!program) {
-        printf("FAIL (IR generation failed)\n");
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return 0;
-    }
-
-    RavaVM_t *vm = rava_vm_create(program);
-
-    if (!rava_vm_execute(vm, class_name, method_name)) {
-        printf("FAIL (runtime error: %s)\n", vm->error_message ? vm->error_message : "unknown");
-        rava_vm_destroy(vm);
-        rava_program_destroy(program);
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return 0;
-    }
-
-    RavaValue_t result = rava_vm_get_result(vm);
-    int result_int = rava_value_as_int(result);
-
-    rava_vm_destroy(vm);
-    rava_program_destroy(program);
-    rava_ir_generator_destroy(ir_gen);
-    rava_semantic_analyzer_destroy(analyzer);
-    rava_ast_node_destroy(ast);
-    rava_parser_destroy(parser);
-    rava_lexer_destroy(lexer);
-
-    if (result_int == expected) {
-        printf("PASS (result=%d)\n", result_int);
-        return 1;
-    } else {
-        printf("FAIL (expected=%d, got=%d)\n", expected, result_int);
-        return 0;
-    }
-}
-
-int main(void) {
-    printf("=== Enum Tests ===\n\n");
-
-    int passed = 0;
-    int total = 0;
-
-    total++;
-    passed += run_test("simple enum ordinal",
         "public enum Color { RED, GREEN, BLUE }\n"
         "public class Test {\n"
         "    public static int main() {\n"
         "        return Color.RED;\n"
         "    }\n"
         "}\n",
-        "Test", "main", 0);
+        "Test", "main", 0, "simple enum ordinal RED should return 0");
 
-    total++;
+    UNITTEST_END_TEST();
-    passed += run_test("enum second value",
+}
+
+UnittestTestResult_t* test_enum_second_value(void) {
+    UNITTEST_BEGIN_TEST("TestEnums", "test_enum_second_value");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public enum Color { RED, GREEN, BLUE }\n"
         "public class Test {\n"
         "    public static int main() {\n"
         "        return Color.GREEN;\n"
         "    }\n"
         "}\n",
-        "Test", "main", 1);
+        "Test", "main", 1, "enum second value GREEN should return 1");
 
-    total++;
+    UNITTEST_END_TEST();
-    passed += run_test("enum third value",
+}
+
+UnittestTestResult_t* test_enum_third_value(void) {
+    UNITTEST_BEGIN_TEST("TestEnums", "test_enum_third_value");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public enum Color { RED, GREEN, BLUE }\n"
         "public class Test {\n"
         "    public static int main() {\n"
         "        return Color.BLUE;\n"
         "    }\n"
         "}\n",
-        "Test", "main", 2);
+        "Test", "main", 2, "enum third value BLUE should return 2");
 
-    total++;
+    UNITTEST_END_TEST();
-    passed += run_test("enum comparison",
+}
+
+UnittestTestResult_t* test_enum_comparison(void) {
+    UNITTEST_BEGIN_TEST("TestEnums", "test_enum_comparison");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public enum Day { MON, TUE, WED, THU, FRI }\n"
         "public class Test {\n"
         "    public static int main() {\n"
@@ -128,10 +59,15 @@ int main(void) {
         "        return 0;\n"
         "    }\n"
         "}\n",
-        "Test", "main", 42);
+        "Test", "main", 42, "enum comparison should return 42");
 
-    total++;
+    UNITTEST_END_TEST();
-    passed += run_test("enum in switch",
+}
+
+UnittestTestResult_t* test_enum_in_switch(void) {
+    UNITTEST_BEGIN_TEST("TestEnums", "test_enum_in_switch");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public enum Status { OK, ERROR, PENDING }\n"
         "public class Test {\n"
         "    public static int main() {\n"
@@ -144,9 +80,35 @@ int main(void) {
         "        }\n"
         "    }\n"
         "}\n",
-        "Test", "main", 20);
+        "Test", "main", 20, "enum in switch should return 20");
 
-    printf("\n=== Results: %d/%d tests passed ===\n", passed, total);
+    UNITTEST_END_TEST();
-
+}
-    return (passed == total) ? 0 : 1;
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Enum Tests");
+
+    UnittestTestCase_t *tc = unittest_test_case_create("TestEnums");
+    unittest_test_case_add_result(tc, test_simple_enum_ordinal());
+    unittest_test_case_add_result(tc, test_enum_second_value());
+    unittest_test_case_add_result(tc, test_enum_third_value());
+    unittest_test_case_add_result(tc, test_enum_comparison());
+    unittest_test_case_add_result(tc, test_enum_in_switch());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_exceptions.c

@@ -1,73 +1,9 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-static int test_count = 0;
+UnittestTestResult_t* test_basic_try_catch(void) {
-static int pass_count = 0;
+    UNITTEST_BEGIN_TEST("TestExceptions", "test_basic_try_catch");
 
-static void run_test_int(const char* name, const char* source, int expected) {
+    RAVA_TEST_RUN(_unittest_result,
-    test_count++;
-
-    RavaLexer_t* lexer = rava_lexer_create(source);
-    RavaParser_t* parser = rava_parser_create(lexer);
-    RavaASTNode_t* ast = rava_parser_parse(parser);
-
-    if (!ast || parser->had_error) {
-        printf("FAIL: %s - Parse error: %s\n", name, parser->error_message ? parser->error_message : "unknown");
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaSemanticAnalyzer_t* analyzer = rava_semantic_analyzer_create();
-    rava_semantic_analyze(analyzer, ast);
-
-    RavaIRGenerator_t* ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t* program = rava_ir_generate(ir_gen, ast);
-
-    RavaVM_t* vm = rava_vm_create(program);
-
-    if (!rava_vm_execute(vm, "Test", "main")) {
-        printf("FAIL: %s - Runtime error: %s\n", name, vm->error_message ? vm->error_message : "unknown");
-        rava_vm_destroy(vm);
-        rava_program_destroy(program);
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaValue_t result = rava_vm_get_result(vm);
-    int32_t result_int = rava_value_as_int(result);
-
-    if (result_int == expected) {
-        printf("PASS: %s (result=%d)\n", name, result_int);
-        pass_count++;
-    } else {
-        printf("FAIL: %s (expected=%d, got=%d)\n", name, expected, result_int);
-    }
-
-    rava_vm_destroy(vm);
-    rava_program_destroy(program);
-    rava_ir_generator_destroy(ir_gen);
-    rava_semantic_analyzer_destroy(analyzer);
-    rava_ast_node_destroy(ast);
-    rava_parser_destroy(parser);
-    rava_lexer_destroy(lexer);
-}
-
-int main(void) {
-    printf("=== Exception Handling Tests ===\n\n");
-
-    run_test_int("basic try-catch",
         "public class Test {\n"
         "    public static int main() {\n"
         "        int result = 0;\n"
@@ -78,9 +14,16 @@ int main(void) {
         "        }\n"
         "        return result;\n"
         "    }\n"
-        "}\n", 42);
+        "}\n",
+        "Test", "main", 42, "basic try-catch should return 42");
 
-    run_test_int("try without exception",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_try_without_exception(void) {
+    UNITTEST_BEGIN_TEST("TestExceptions", "test_try_without_exception");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int result = 10;\n"
@@ -91,9 +34,16 @@ int main(void) {
         "        }\n"
         "        return result;\n"
         "    }\n"
-        "}\n", 20);
+        "}\n",
+        "Test", "main", 20, "try without exception should return 20");
 
-    run_test_int("catch modifies value",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_catch_modifies_value(void) {
+    UNITTEST_BEGIN_TEST("TestExceptions", "test_catch_modifies_value");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 5;\n"
@@ -104,9 +54,16 @@ int main(void) {
         "        }\n"
         "        return x;\n"
         "    }\n"
-        "}\n", 15);
+        "}\n",
+        "Test", "main", 15, "catch modifies value should return 15");
 
-    run_test_int("try-finally without exception",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_try_finally(void) {
+    UNITTEST_BEGIN_TEST("TestExceptions", "test_try_finally");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int result = 0;\n"
@@ -119,9 +76,35 @@ int main(void) {
         "        }\n"
         "        return result;\n"
         "    }\n"
-        "}\n", 15);
+        "}\n",
+        "Test", "main", 15, "try-finally without exception should return 15");
 
-    printf("\n=== Results: %d/%d tests passed ===\n", pass_count, test_count);
+    UNITTEST_END_TEST();
-
+}
-    return (pass_count == test_count) ? 0 : 1;
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Exception Handling Tests");
+
+    UnittestTestCase_t *tc = unittest_test_case_create("TestExceptions");
+    unittest_test_case_add_result(tc, test_basic_try_catch());
+    unittest_test_case_add_result(tc, test_try_without_exception());
+    unittest_test_case_add_result(tc, test_catch_modifies_value());
+    unittest_test_case_add_result(tc, test_try_finally());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_fileio.c

@@ -1,77 +1,36 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-static char* read_file(const char *filename) {
+UnittestTestResult_t* test_fileio_example(void) {
-    FILE *file = fopen(filename, "r");
+    UNITTEST_BEGIN_TEST("TestFileIO", "test_fileio_example");
-    if (!file) return NULL;
+
-    fseek(file, 0, SEEK_END);
+    RAVA_TEST_FILE_EXECUTES(_unittest_result,
-    long size = ftell(file);
+        "examples/15_FileIO.java",
-    fseek(file, 0, SEEK_SET);
+        "FileIO", "main",
-    char *content = malloc(size + 1);
+        "15_FileIO.java should execute successfully");
-    size_t read_bytes = fread(content, 1, size, file); (void)read_bytes;
+
-    content[size] = '\0';
+    UNITTEST_END_TEST();
-    fclose(file);
-    return content;
 }
 
-int main() {
+int main(int argc, char **argv) {
-    char *source = read_file("examples/15_FileIO.java");
+    UnittestConfig_t *config = unittest_config_create();
-    if (!source) {
+    config->verbosity = 2;
-        printf("Failed to read file\n");
+
-        return 1;
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
     }
 
-    RavaLexer_t *lexer = rava_lexer_create(source);
+    UnittestTestSuite_t *suite = unittest_test_suite_create("File I/O Example Tests");
-    RavaParser_t *parser = rava_parser_create(lexer);
-    RavaASTNode_t *ast = rava_parser_parse(parser);
 
-    if (parser->had_error) {
+    UnittestTestCase_t *tc = unittest_test_case_create("TestFileIO");
-        printf("Parse error: %s\n", parser->error_message);
+    unittest_test_case_add_result(tc, test_fileio_example());
-        free(source);
+    unittest_test_suite_add_test_case(suite, tc);
-        return 1;
-    }
 
-    printf("Parse: OK\n");
+    unittest_generate_report(suite, config);
 
-    RavaSemanticAnalyzer_t *analyzer = rava_semantic_analyzer_create();
+    int failures = suite->total_failed + suite->total_errors;
-    if (!rava_semantic_analyze(analyzer, ast)) {
+    unittest_test_suite_destroy(suite);
-        printf("Semantic error: %s\n", analyzer->error_message);
+    unittest_config_destroy(config);
-        free(source);
-        return 1;
-    }
 
-    printf("Semantic: OK\n");
+    return failures > 0 ? 1 : 0;
-
-    RavaIRGenerator_t *ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t *program = rava_ir_generate(ir_gen, ast);
-
-    if (!program) {
-        printf("IR generation failed\n");
-        free(source);
-        return 1;
-    }
-
-    printf("IR Gen: OK\n");
-    printf("\nOutput:\n");
-
-    RavaVM_t *vm = rava_vm_create(program);
-    if (!rava_vm_execute(vm, "FileIO", "main")) {
-        printf("Runtime error: %s\n", vm->error_message);
-        rava_vm_destroy(vm);
-        free(source);
-        return 1;
-    }
-
-    printf("\nExecution: OK\n");
-
-    rava_vm_destroy(vm);
-    free(source);
-    return 0;
 }

tests/test_instance_methods.c

@@ -1,77 +1,36 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-static char* read_file(const char *filename) {
+UnittestTestResult_t* test_instance_methods_example(void) {
-    FILE *file = fopen(filename, "r");
+    UNITTEST_BEGIN_TEST("TestInstanceMethods", "test_instance_methods_example");
-    if (!file) return NULL;
+
-    fseek(file, 0, SEEK_END);
+    RAVA_TEST_FILE_EXECUTES(_unittest_result,
-    long size = ftell(file);
+        "examples/14_InstanceMethods.java",
-    fseek(file, 0, SEEK_SET);
+        "InstanceMethods", "main",
-    char *content = malloc(size + 1);
+        "14_InstanceMethods.java should execute successfully");
-    size_t read_bytes = fread(content, 1, size, file); (void)read_bytes;
+
-    content[size] = '\0';
+    UNITTEST_END_TEST();
-    fclose(file);
-    return content;
 }
 
-int main() {
+int main(int argc, char **argv) {
-    char *source = read_file("examples/14_InstanceMethods.java");
+    UnittestConfig_t *config = unittest_config_create();
-    if (!source) {
+    config->verbosity = 2;
-        printf("Failed to read file\n");
+
-        return 1;
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
     }
 
-    RavaLexer_t *lexer = rava_lexer_create(source);
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Instance Methods Example Tests");
-    RavaParser_t *parser = rava_parser_create(lexer);
-    RavaASTNode_t *ast = rava_parser_parse(parser);
 
-    if (parser->had_error) {
+    UnittestTestCase_t *tc = unittest_test_case_create("TestInstanceMethods");
-        printf("Parse error: %s\n", parser->error_message);
+    unittest_test_case_add_result(tc, test_instance_methods_example());
-        free(source);
+    unittest_test_suite_add_test_case(suite, tc);
-        return 1;
-    }
 
-    printf("Parse: OK\n");
+    unittest_generate_report(suite, config);
 
-    RavaSemanticAnalyzer_t *analyzer = rava_semantic_analyzer_create();
+    int failures = suite->total_failed + suite->total_errors;
-    if (!rava_semantic_analyze(analyzer, ast)) {
+    unittest_test_suite_destroy(suite);
-        printf("Semantic error: %s\n", analyzer->error_message);
+    unittest_config_destroy(config);
-        free(source);
-        return 1;
-    }
 
-    printf("Semantic: OK\n");
+    return failures > 0 ? 1 : 0;
-
-    RavaIRGenerator_t *ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t *program = rava_ir_generate(ir_gen, ast);
-
-    if (!program) {
-        printf("IR generation failed\n");
-        free(source);
-        return 1;
-    }
-
-    printf("IR Gen: OK\n");
-    printf("\nOutput:\n");
-
-    RavaVM_t *vm = rava_vm_create(program);
-    if (!rava_vm_execute(vm, "InstanceMethods", "main")) {
-        printf("Runtime error: %s\n", vm->error_message);
-        rava_vm_destroy(vm);
-        free(source);
-        return 1;
-    }
-
-    printf("\nExecution: OK\n");
-
-    rava_vm_destroy(vm);
-    free(source);
-    return 0;
 }

tests/test_instanceof.c

@@ -1,73 +1,9 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-static int test_count = 0;
+UnittestTestResult_t* test_instanceof_true(void) {
-static int pass_count = 0;
+    UNITTEST_BEGIN_TEST("TestInstanceof", "test_instanceof_true");
 
-static void run_test_int(const char* name, const char* source, int expected) {
+    RAVA_TEST_RUN(_unittest_result,
-    test_count++;
-
-    RavaLexer_t* lexer = rava_lexer_create(source);
-    RavaParser_t* parser = rava_parser_create(lexer);
-    RavaASTNode_t* ast = rava_parser_parse(parser);
-
-    if (!ast || parser->had_error) {
-        printf("FAIL: %s - Parse error: %s\n", name, parser->error_message ? parser->error_message : "unknown");
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaSemanticAnalyzer_t* analyzer = rava_semantic_analyzer_create();
-    rava_semantic_analyze(analyzer, ast);
-
-    RavaIRGenerator_t* ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t* program = rava_ir_generate(ir_gen, ast);
-
-    RavaVM_t* vm = rava_vm_create(program);
-
-    if (!rava_vm_execute(vm, "Test", "main")) {
-        printf("FAIL: %s - Runtime error: %s\n", name, vm->error_message ? vm->error_message : "unknown");
-        rava_vm_destroy(vm);
-        rava_program_destroy(program);
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaValue_t result = rava_vm_get_result(vm);
-    int32_t result_int = rava_value_as_int(result);
-
-    if (result_int == expected) {
-        printf("PASS: %s (result=%d)\n", name, result_int);
-        pass_count++;
-    } else {
-        printf("FAIL: %s (expected=%d, got=%d)\n", name, expected, result_int);
-    }
-
-    rava_vm_destroy(vm);
-    rava_program_destroy(program);
-    rava_ir_generator_destroy(ir_gen);
-    rava_semantic_analyzer_destroy(analyzer);
-    rava_ast_node_destroy(ast);
-    rava_parser_destroy(parser);
-    rava_lexer_destroy(lexer);
-}
-
-int main(void) {
-    printf("=== Instanceof Tests ===\n\n");
-
-    run_test_int("instanceof true",
         "public class Animal {}\n"
         "public class Test {\n"
         "    public static int main() {\n"
@@ -75,9 +11,16 @@ int main(void) {
         "        if (a instanceof Animal) { return 1; }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 1);
+        "}\n",
+        "Test", "main", 1, "instanceof true should return 1");
 
-    run_test_int("instanceof false",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_instanceof_false(void) {
+    UNITTEST_BEGIN_TEST("TestInstanceof", "test_instanceof_false");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Animal {}\n"
         "public class Dog {}\n"
         "public class Test {\n"
@@ -86,9 +29,16 @@ int main(void) {
         "        if (d instanceof Animal) { return 1; }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 0);
+        "}\n",
+        "Test", "main", 0, "instanceof false should return 0");
 
-    run_test_int("instanceof in expression",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_instanceof_in_expression(void) {
+    UNITTEST_BEGIN_TEST("TestInstanceof", "test_instanceof_in_expression");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Person {}\n"
         "public class Test {\n"
         "    public static int main() {\n"
@@ -97,9 +47,34 @@ int main(void) {
         "        if (p instanceof Person) { result = 42; }\n"
         "        return result;\n"
         "    }\n"
-        "}\n", 42);
+        "}\n",
+        "Test", "main", 42, "instanceof in expression should return 42");
 
-    printf("\n=== Results: %d/%d tests passed ===\n", pass_count, test_count);
+    UNITTEST_END_TEST();
-
+}
-    return (pass_count == test_count) ? 0 : 1;
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Instanceof Tests");
+
+    UnittestTestCase_t *tc = unittest_test_case_create("TestInstanceof");
+    unittest_test_case_add_result(tc, test_instanceof_true());
+    unittest_test_case_add_result(tc, test_instanceof_false());
+    unittest_test_case_add_result(tc, test_instanceof_in_expression());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_interfaces.c

@@ -1,73 +1,9 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-static int test_count = 0;
+UnittestTestResult_t* test_interface_with_implementing_class(void) {
-static int pass_count = 0;
+    UNITTEST_BEGIN_TEST("TestInterfaces", "test_interface_with_implementing_class");
 
-static void run_test_int(const char* name, const char* source, int expected) {
+    RAVA_TEST_RUN(_unittest_result,
-    test_count++;
-
-    RavaLexer_t* lexer = rava_lexer_create(source);
-    RavaParser_t* parser = rava_parser_create(lexer);
-    RavaASTNode_t* ast = rava_parser_parse(parser);
-
-    if (!ast || parser->had_error) {
-        printf("FAIL: %s - Parse error: %s\n", name, parser->error_message ? parser->error_message : "unknown");
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaSemanticAnalyzer_t* analyzer = rava_semantic_analyzer_create();
-    rava_semantic_analyze(analyzer, ast);
-
-    RavaIRGenerator_t* ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t* program = rava_ir_generate(ir_gen, ast);
-
-    RavaVM_t* vm = rava_vm_create(program);
-
-    if (!rava_vm_execute(vm, "Test", "main")) {
-        printf("FAIL: %s - Runtime error: %s\n", name, vm->error_message ? vm->error_message : "unknown");
-        rava_vm_destroy(vm);
-        rava_program_destroy(program);
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaValue_t result = rava_vm_get_result(vm);
-    int32_t result_int = rava_value_as_int(result);
-
-    if (result_int == expected) {
-        printf("PASS: %s (result=%d)\n", name, result_int);
-        pass_count++;
-    } else {
-        printf("FAIL: %s (expected=%d, got=%d)\n", name, expected, result_int);
-    }
-
-    rava_vm_destroy(vm);
-    rava_program_destroy(program);
-    rava_ir_generator_destroy(ir_gen);
-    rava_semantic_analyzer_destroy(analyzer);
-    rava_ast_node_destroy(ast);
-    rava_parser_destroy(parser);
-    rava_lexer_destroy(lexer);
-}
-
-int main(void) {
-    printf("=== Interface Tests ===\n\n");
-
-    run_test_int("interface with implementing class",
         "interface Addable {\n"
         "    int add(int a, int b);\n"
         "}\n"
@@ -81,9 +17,16 @@ int main(void) {
         "        Calculator calc = new Calculator();\n"
         "        return calc.add(10, 20);\n"
         "    }\n"
-        "}\n", 30);
+        "}\n",
+        "Test", "main", 30, "interface with implementing class should return 30");
 
-    run_test_int("class implements multiple interfaces",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_multiple_interfaces(void) {
+    UNITTEST_BEGIN_TEST("TestInterfaces", "test_multiple_interfaces");
+
+    RAVA_TEST_RUN(_unittest_result,
         "interface Addable {\n"
         "    int add(int a, int b);\n"
         "}\n"
@@ -103,9 +46,16 @@ int main(void) {
         "        Calculator calc = new Calculator();\n"
         "        return calc.add(100, 50) - calc.subtract(30, 10);\n"
         "    }\n"
-        "}\n", 130);
+        "}\n",
+        "Test", "main", 130, "class implements multiple interfaces should return 130");
 
-    run_test_int("class extends and implements",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_extends_and_implements(void) {
+    UNITTEST_BEGIN_TEST("TestInterfaces", "test_extends_and_implements");
+
+    RAVA_TEST_RUN(_unittest_result,
         "interface Printable {\n"
         "    int getValue();\n"
         "}\n"
@@ -125,9 +75,16 @@ int main(void) {
         "        Derived d = new Derived();\n"
         "        return d.getValue();\n"
         "    }\n"
-        "}\n", 150);
+        "}\n",
+        "Test", "main", 150, "class extends and implements should return 150");
 
-    run_test_int("empty interface",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_empty_interface(void) {
+    UNITTEST_BEGIN_TEST("TestInterfaces", "test_empty_interface");
+
+    RAVA_TEST_RUN(_unittest_result,
         "interface Empty {\n"
         "}\n"
         "class MyClass implements Empty {\n"
@@ -140,9 +97,35 @@ int main(void) {
         "        MyClass obj = new MyClass();\n"
         "        return obj.getValue();\n"
         "    }\n"
-        "}\n", 42);
+        "}\n",
+        "Test", "main", 42, "empty interface should return 42");
 
-    printf("\n=== Results: %d/%d tests passed ===\n", pass_count, test_count);
+    UNITTEST_END_TEST();
-
+}
-    return (pass_count == test_count) ? 0 : 1;
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Interface Tests");
+
+    UnittestTestCase_t *tc = unittest_test_case_create("TestInterfaces");
+    unittest_test_case_add_result(tc, test_interface_with_implementing_class());
+    unittest_test_case_add_result(tc, test_multiple_interfaces());
+    unittest_test_case_add_result(tc, test_extends_and_implements());
+    unittest_test_case_add_result(tc, test_empty_interface());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_ir.c

@@ -1,66 +1,114 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include <stdio.h>
-#include <stdlib.h>
 
-int main() {
+UnittestTestResult_t* test_ir_simple_method(void) {
-    const char *source =
+    UNITTEST_BEGIN_TEST("TestIR", "test_ir_simple_method");
-        "public class Math {\n"
+
+    RAVA_TEST_IR_OK(_unittest_result,
+        "public class Test {\n"
         "    public static int add(int a, int b) {\n"
         "        int result = a + b;\n"
         "        return result;\n"
         "    }\n"
-        "\n"
+        "}\n",
+        "simple method should generate IR successfully");
+
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_ir_recursive_method(void) {
+    UNITTEST_BEGIN_TEST("TestIR", "test_ir_recursive_method");
+
+    RAVA_TEST_IR_OK(_unittest_result,
+        "public class Test {\n"
         "    public static int factorial(int n) {\n"
         "        if (n <= 1) {\n"
         "            return 1;\n"
         "        }\n"
         "        return n * factorial(n - 1);\n"
         "    }\n"
-        "}\n";
+        "}\n",
+        "recursive method should generate IR successfully");
 
-    printf("Source code:\n%s\n", source);
+    UNITTEST_END_TEST();
-    printf("\nIR Generation:\n");
+}
-    printf("================================================================================\n\n");
+
-
+UnittestTestResult_t* test_ir_control_flow(void) {
-    RavaLexer_t *lexer = rava_lexer_create(source);
+    UNITTEST_BEGIN_TEST("TestIR", "test_ir_control_flow");
-    RavaParser_t *parser = rava_parser_create(lexer);
+
-    RavaASTNode_t *ast = rava_parser_parse(parser);
+    RAVA_TEST_IR_OK(_unittest_result,
-
+        "public class Test {\n"
-    if (parser->had_error) {
+        "    public static int main() {\n"
-        printf("Parse error: %s\n", parser->error_message ? parser->error_message : "Unknown error");
+        "        int sum = 0;\n"
-        return 1;
+        "        for (int i = 0; i < 10; i++) {\n"
-    }
+        "            if (i % 2 == 0) {\n"
-
+        "                sum = sum + i;\n"
-    RavaSemanticAnalyzer_t *analyzer = rava_semantic_analyzer_create();
+        "            }\n"
-    bool semantic_ok = rava_semantic_analyze(analyzer, ast);
+        "        }\n"
-
+        "        return sum;\n"
-    if (!semantic_ok) {
+        "    }\n"
-        printf("Semantic error: %s\n", analyzer->error_message ? analyzer->error_message : "Unknown error");
+        "}\n",
-        return 1;
+        "control flow should generate IR successfully");
-    }
+
-
+    UNITTEST_END_TEST();
-    RavaIRGenerator_t *ir_gen = rava_ir_generator_create(analyzer);
+}
-    RavaProgram_t *program = rava_ir_generate(ir_gen, ast);
+
-
+UnittestTestResult_t* test_ir_array_operations(void) {
-    if (program) {
+    UNITTEST_BEGIN_TEST("TestIR", "test_ir_array_operations");
-        rava_ir_print(program);
+
-        printf("\n✓ IR generation completed successfully!\n");
+    RAVA_TEST_IR_OK(_unittest_result,
-    } else {
+        "public class Test {\n"
-        printf("✗ IR generation failed!\n");
+        "    public static int main() {\n"
-        return 1;
+        "        int[] arr = new int[5];\n"
-    }
+        "        arr[0] = 10;\n"
-
+        "        arr[1] = 20;\n"
-    rava_program_destroy(program);
+        "        return arr[0] + arr[1];\n"
-    rava_ir_generator_destroy(ir_gen);
+        "    }\n"
-    rava_semantic_analyzer_destroy(analyzer);
+        "}\n",
-    rava_ast_node_destroy(ast);
+        "array operations should generate IR successfully");
-    rava_parser_destroy(parser);
+
-    rava_lexer_destroy(lexer);
+    UNITTEST_END_TEST();
-
+}
-    printf("\nIR test completed!\n");
+
-    return 0;
+UnittestTestResult_t* test_ir_static_fields(void) {
+    UNITTEST_BEGIN_TEST("TestIR", "test_ir_static_fields");
+
+    RAVA_TEST_IR_OK(_unittest_result,
+        "public class Test {\n"
+        "    public static int counter = 0;\n"
+        "    public static int main() {\n"
+        "        counter = counter + 1;\n"
+        "        return counter;\n"
+        "    }\n"
+        "}\n",
+        "static fields should generate IR successfully");
+
+    UNITTEST_END_TEST();
+}
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("IR Generation Tests");
+
+    UnittestTestCase_t *tc = unittest_test_case_create("TestIR");
+    unittest_test_case_add_result(tc, test_ir_simple_method());
+    unittest_test_case_add_result(tc, test_ir_recursive_method());
+    unittest_test_case_add_result(tc, test_ir_control_flow());
+    unittest_test_case_add_result(tc, test_ir_array_operations());
+    unittest_test_case_add_result(tc, test_ir_static_fields());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_lexer.c

@@ -1,95 +1,129 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include <stdio.h>
-#include <stdlib.h>
 
-static const char* token_type_to_string(RavaTokenType_e type) {
+UnittestTestResult_t* test_lexer_basic_class(void) {
-    switch (type) {
+    UNITTEST_BEGIN_TEST("TestLexer", "test_lexer_basic_class");
-        case RAVA_TOKEN_EOF: return "EOF";
-        case RAVA_TOKEN_KEYWORD_CLASS: return "KEYWORD_CLASS";
-        case RAVA_TOKEN_KEYWORD_PUBLIC: return "KEYWORD_PUBLIC";
-        case RAVA_TOKEN_KEYWORD_STATIC: return "KEYWORD_STATIC";
-        case RAVA_TOKEN_KEYWORD_VOID: return "KEYWORD_VOID";
-        case RAVA_TOKEN_KEYWORD_INT: return "KEYWORD_INT";
-        case RAVA_TOKEN_KEYWORD_RETURN: return "KEYWORD_RETURN";
-        case RAVA_TOKEN_KEYWORD_IF: return "KEYWORD_IF";
-        case RAVA_TOKEN_KEYWORD_ELSE: return "KEYWORD_ELSE";
-        case RAVA_TOKEN_IDENTIFIER: return "IDENTIFIER";
-        case RAVA_TOKEN_LITERAL_INTEGER: return "LITERAL_INTEGER";
-        case RAVA_TOKEN_LITERAL_STRING: return "LITERAL_STRING";
-        case RAVA_TOKEN_LITERAL_TRUE: return "LITERAL_TRUE";
-        case RAVA_TOKEN_LITERAL_FALSE: return "LITERAL_FALSE";
-        case RAVA_TOKEN_LITERAL_NULL: return "LITERAL_NULL";
-        case RAVA_TOKEN_LPAREN: return "LPAREN";
-        case RAVA_TOKEN_RPAREN: return "RPAREN";
-        case RAVA_TOKEN_LBRACE: return "LBRACE";
-        case RAVA_TOKEN_RBRACE: return "RBRACE";
-        case RAVA_TOKEN_SEMICOLON: return "SEMICOLON";
-        case RAVA_TOKEN_COMMA: return "COMMA";
-        case RAVA_TOKEN_DOT: return "DOT";
-        case RAVA_TOKEN_ASSIGN: return "ASSIGN";
-        case RAVA_TOKEN_PLUS: return "PLUS";
-        case RAVA_TOKEN_MINUS: return "MINUS";
-        case RAVA_TOKEN_STAR: return "STAR";
-        case RAVA_TOKEN_EQUAL: return "EQUAL";
-        case RAVA_TOKEN_LT: return "LT";
-        case RAVA_TOKEN_GT: return "GT";
-        case RAVA_TOKEN_ERROR: return "ERROR";
-        default: return "UNKNOWN";
-    }
-}
 
-int main() {
+    RAVA_TEST_LEXER_OK(_unittest_result,
-    const char *source =
         "public class HelloWorld {\n"
         "    public static void main(String[] args) {\n"
         "        int x = 42;\n"
-        "        if (x > 0) {\n"
-        "            System.out.println(\"Hello, World!\");\n"
-        "        }\n"
         "        return;\n"
         "    }\n"
-        "}\n";
+        "}\n",
+        "basic class should tokenize successfully");
 
-    printf("Source code:\n%s\n", source);
+    UNITTEST_END_TEST();
-    printf("\nTokens:\n");
+}
-    printf("%-20s %-30s %s\n", "Type", "Lexeme", "Location");
+
-    printf("--------------------------------------------------------------------------------\n");
+UnittestTestResult_t* test_lexer_keywords(void) {
-
+    UNITTEST_BEGIN_TEST("TestLexer", "test_lexer_keywords");
-    RavaLexer_t *lexer = rava_lexer_create(source);
+
-    RavaToken_t *token;
+    RAVA_TEST_LEXER_OK(_unittest_result,
-
+        "public class Test {\n"
-    do {
+        "    private static final int x = 0;\n"
-        token = rava_lexer_next_token(lexer);
+        "    protected void method() {\n"
-        if (token->type == RAVA_TOKEN_ERROR) {
+        "        if (true) { return; }\n"
-            printf("ERROR: %s at line %d, column %d\n",
+        "        else { break; }\n"
-                   lexer->error_message ? lexer->error_message : "Unknown error",
+        "        while (false) { continue; }\n"
-                   token->line, token->column);
+        "        for (int i = 0; i < 10; i++) {}\n"
-            rava_token_destroy(token);
+        "    }\n"
-            break;
+        "}\n",
-        }
+        "keywords should tokenize successfully");
-
+
-        printf("%-20s %-30s Line %d, Col %d\n",
+    UNITTEST_END_TEST();
-               token_type_to_string(token->type),
+}
-               token->lexeme,
+
-               token->line,
+UnittestTestResult_t* test_lexer_literals(void) {
-               token->column);
+    UNITTEST_BEGIN_TEST("TestLexer", "test_lexer_literals");
-
+
-        if (token->type == RAVA_TOKEN_LITERAL_INTEGER) {
+    RAVA_TEST_LEXER_OK(_unittest_result,
-            printf("    Value: %lld\n", (long long)token->value.int_value);
+        "public class Test {\n"
-        } else if (token->type == RAVA_TOKEN_LITERAL_STRING) {
+        "    public static void main() {\n"
-            printf("    String Value: \"%s\"\n", token->value.string_value);
+        "        int a = 42;\n"
-        }
+        "        long b = 100L;\n"
-
+        "        double c = 3.14;\n"
-        RavaTokenType_e type = token->type;
+        "        String s = \"Hello, World!\";\n"
-        rava_token_destroy(token);
+        "        char ch = 'x';\n"
-
+        "        boolean t = true;\n"
-        if (type == RAVA_TOKEN_EOF) {
+        "        boolean f = false;\n"
-            break;
+        "        Object n = null;\n"
-        }
+        "    }\n"
-    } while (1);
+        "}\n",
-
+        "literals should tokenize successfully");
-    rava_lexer_destroy(lexer);
+
-
+    UNITTEST_END_TEST();
-    printf("\nLexer test completed successfully!\n");
+}
-    return 0;
+
+UnittestTestResult_t* test_lexer_operators(void) {
+    UNITTEST_BEGIN_TEST("TestLexer", "test_lexer_operators");
+
+    RAVA_TEST_LEXER_OK(_unittest_result,
+        "public class Test {\n"
+        "    public static int main() {\n"
+        "        int a = 1 + 2 - 3 * 4 / 5 % 6;\n"
+        "        boolean b = a < 10 && a > 0 || a == 5;\n"
+        "        int c = a & 0xFF | 0x0F ^ 0x01;\n"
+        "        int d = a << 2 >> 1 >>> 0;\n"
+        "        a += 1; a -= 1; a *= 2; a /= 2;\n"
+        "        return a;\n"
+        "    }\n"
+        "}\n",
+        "operators should tokenize successfully");
+
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_lexer_control_flow(void) {
+    UNITTEST_BEGIN_TEST("TestLexer", "test_lexer_control_flow");
+
+    RAVA_TEST_LEXER_OK(_unittest_result,
+        "public class Test {\n"
+        "    public static int main() {\n"
+        "        if (true) {\n"
+        "            return 1;\n"
+        "        } else {\n"
+        "            return 0;\n"
+        "        }\n"
+        "        switch (x) {\n"
+        "            case 1: break;\n"
+        "            default: break;\n"
+        "        }\n"
+        "        try {\n"
+        "            throw new Exception();\n"
+        "        } catch (Exception e) {\n"
+        "        } finally {\n"
+        "        }\n"
+        "    }\n"
+        "}\n",
+        "control flow should tokenize successfully");
+
+    UNITTEST_END_TEST();
+}
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Lexer Tests");
+
+    UnittestTestCase_t *tc = unittest_test_case_create("TestLexer");
+    unittest_test_case_add_result(tc, test_lexer_basic_class());
+    unittest_test_case_add_result(tc, test_lexer_keywords());
+    unittest_test_case_add_result(tc, test_lexer_literals());
+    unittest_test_case_add_result(tc, test_lexer_operators());
+    unittest_test_case_add_result(tc, test_lexer_control_flow());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_math.c

@@ -1,166 +1,212 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
 
-static int test_count = 0;
+UnittestTestResult_t* test_math_abs_positive(void) {
-static int pass_count = 0;
+    UNITTEST_BEGIN_TEST("TestMath", "test_math_abs_positive");
 
-static void run_test_int(const char* name, const char* source, int expected) {
+    RAVA_TEST_RUN(_unittest_result,
-    test_count++;
-
-    RavaLexer_t* lexer = rava_lexer_create(source);
-    RavaParser_t* parser = rava_parser_create(lexer);
-    RavaASTNode_t* ast = rava_parser_parse(parser);
-
-    if (!ast || parser->had_error) {
-        printf("FAIL: %s - Parse error: %s\n", name, parser->error_message ? parser->error_message : "unknown");
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaSemanticAnalyzer_t* analyzer = rava_semantic_analyzer_create();
-    rava_semantic_analyze(analyzer, ast);
-
-    RavaIRGenerator_t* ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t* program = rava_ir_generate(ir_gen, ast);
-
-    RavaVM_t* vm = rava_vm_create(program);
-
-    if (!rava_vm_execute(vm, "Test", "main")) {
-        printf("FAIL: %s - Runtime error: %s\n", name, vm->error_message ? vm->error_message : "unknown");
-        rava_vm_destroy(vm);
-        rava_program_destroy(program);
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaValue_t result = rava_vm_get_result(vm);
-    int32_t result_int = rava_value_as_int(result);
-
-    if (result_int == expected) {
-        printf("PASS: %s (result=%d)\n", name, result_int);
-        pass_count++;
-    } else {
-        printf("FAIL: %s (expected=%d, got=%d)\n", name, expected, result_int);
-    }
-
-    rava_vm_destroy(vm);
-    rava_program_destroy(program);
-    rava_ir_generator_destroy(ir_gen);
-    rava_semantic_analyzer_destroy(analyzer);
-    rava_ast_node_destroy(ast);
-    rava_parser_destroy(parser);
-    rava_lexer_destroy(lexer);
-}
-
-int main(void) {
-    printf("=== Math Class Tests ===\n\n");
-
-    run_test_int("Math.abs positive",
         "public class Test {\n"
         "    public static int main() {\n"
         "        return Math.abs(42);\n"
         "    }\n"
-        "}\n", 42);
+        "}\n",
+        "Test", "main", 42, "Math.abs(42) should return 42");
 
-    run_test_int("Math.abs negative",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_math_abs_negative(void) {
+    UNITTEST_BEGIN_TEST("TestMath", "test_math_abs_negative");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        return Math.abs(-42);\n"
         "    }\n"
-        "}\n", 42);
+        "}\n",
+        "Test", "main", 42, "Math.abs(-42) should return 42");
 
-    run_test_int("Math.min",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_math_min(void) {
+    UNITTEST_BEGIN_TEST("TestMath", "test_math_min");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        return Math.min(10, 5);\n"
         "    }\n"
-        "}\n", 5);
+        "}\n",
+        "Test", "main", 5, "Math.min(10, 5) should return 5");
 
-    run_test_int("Math.max",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_math_max(void) {
+    UNITTEST_BEGIN_TEST("TestMath", "test_math_max");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        return Math.max(10, 5);\n"
         "    }\n"
-        "}\n", 10);
+        "}\n",
+        "Test", "main", 10, "Math.max(10, 5) should return 10");
 
-    run_test_int("(int)Math.pow 2^8",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_math_pow(void) {
+    UNITTEST_BEGIN_TEST("TestMath", "test_math_pow");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int result = (int)Math.pow(2, 8);\n"
         "        return result;\n"
         "    }\n"
-        "}\n", 256);
+        "}\n",
+        "Test", "main", 256, "(int)Math.pow(2, 8) should return 256");
 
-    run_test_int("(int)Math.sqrt 25",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_math_sqrt(void) {
+    UNITTEST_BEGIN_TEST("TestMath", "test_math_sqrt");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int result = (int)Math.sqrt(25);\n"
         "        return result;\n"
         "    }\n"
-        "}\n", 5);
+        "}\n",
+        "Test", "main", 5, "(int)Math.sqrt(25) should return 5");
 
-    run_test_int("(int)Math.floor 4.9",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_math_floor(void) {
+    UNITTEST_BEGIN_TEST("TestMath", "test_math_floor");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int result = (int)Math.floor(4.9);\n"
         "        return result;\n"
         "    }\n"
-        "}\n", 4);
+        "}\n",
+        "Test", "main", 4, "(int)Math.floor(4.9) should return 4");
 
-    run_test_int("(int)Math.ceil 4.1",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_math_ceil(void) {
+    UNITTEST_BEGIN_TEST("TestMath", "test_math_ceil");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int result = (int)Math.ceil(4.1);\n"
         "        return result;\n"
         "    }\n"
-        "}\n", 5);
+        "}\n",
+        "Test", "main", 5, "(int)Math.ceil(4.1) should return 5");
 
-    run_test_int("(int)Math.round 4.7",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_math_round_up(void) {
+    UNITTEST_BEGIN_TEST("TestMath", "test_math_round_up");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int result = (int)Math.round(4.7);\n"
         "        return result;\n"
         "    }\n"
-        "}\n", 5);
+        "}\n",
+        "Test", "main", 5, "(int)Math.round(4.7) should return 5");
 
-    run_test_int("(int)Math.round 4.2",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_math_round_down(void) {
+    UNITTEST_BEGIN_TEST("TestMath", "test_math_round_down");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int result = (int)Math.round(4.2);\n"
         "        return result;\n"
         "    }\n"
-        "}\n", 4);
+        "}\n",
+        "Test", "main", 4, "(int)Math.round(4.2) should return 4");
 
-    run_test_int("(int) double cast",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_double_cast(void) {
+    UNITTEST_BEGIN_TEST("TestMath", "test_double_cast");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int result = (int)3.14159;\n"
         "        return result;\n"
         "    }\n"
-        "}\n", 3);
+        "}\n",
+        "Test", "main", 3, "(int)3.14159 should return 3");
 
-    run_test_int("(int) negative double",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_negative_double_cast(void) {
+    UNITTEST_BEGIN_TEST("TestMath", "test_negative_double_cast");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int result = (int)(-7.8);\n"
         "        return result;\n"
         "    }\n"
-        "}\n", -7);
+        "}\n",
+        "Test", "main", -7, "(int)(-7.8) should return -7");
 
-    printf("\n=== Results: %d/%d tests passed ===\n", pass_count, test_count);
+    UNITTEST_END_TEST();
-
+}
-    return (pass_count == test_count) ? 0 : 1;
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Math Class Tests");
+
+    UnittestTestCase_t *tc = unittest_test_case_create("TestMath");
+    unittest_test_case_add_result(tc, test_math_abs_positive());
+    unittest_test_case_add_result(tc, test_math_abs_negative());
+    unittest_test_case_add_result(tc, test_math_min());
+    unittest_test_case_add_result(tc, test_math_max());
+    unittest_test_case_add_result(tc, test_math_pow());
+    unittest_test_case_add_result(tc, test_math_sqrt());
+    unittest_test_case_add_result(tc, test_math_floor());
+    unittest_test_case_add_result(tc, test_math_ceil());
+    unittest_test_case_add_result(tc, test_math_round_up());
+    unittest_test_case_add_result(tc, test_math_round_down());
+    unittest_test_case_add_result(tc, test_double_cast());
+    unittest_test_case_add_result(tc, test_negative_double_cast());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_multidim_arrays.c

@@ -1,98 +1,55 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-static int test_count = 0;
+UnittestTestResult_t* test_2d_array_outer_length(void) {
-static int pass_count = 0;
+    UNITTEST_BEGIN_TEST("TestMultidimArrays", "test_2d_array_outer_length");
 
-static void run_test_int(const char* name, const char* source, int expected) {
+    RAVA_TEST_RUN(_unittest_result,
-    test_count++;
-
-    RavaLexer_t* lexer = rava_lexer_create(source);
-    RavaParser_t* parser = rava_parser_create(lexer);
-    RavaASTNode_t* ast = rava_parser_parse(parser);
-
-    if (!ast || parser->had_error) {
-        printf("FAIL: %s - Parse error: %s\n", name, parser->error_message ? parser->error_message : "unknown");
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaSemanticAnalyzer_t* analyzer = rava_semantic_analyzer_create();
-    rava_semantic_analyze(analyzer, ast);
-
-    RavaIRGenerator_t* ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t* program = rava_ir_generate(ir_gen, ast);
-
-    RavaVM_t* vm = rava_vm_create(program);
-
-    if (!rava_vm_execute(vm, "Test", "main")) {
-        printf("FAIL: %s - Runtime error: %s\n", name, vm->error_message ? vm->error_message : "unknown");
-        rava_vm_destroy(vm);
-        rava_program_destroy(program);
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaValue_t result = rava_vm_get_result(vm);
-    int32_t result_int = rava_value_as_int(result);
-
-    if (result_int == expected) {
-        printf("PASS: %s (result=%d)\n", name, result_int);
-        pass_count++;
-    } else {
-        printf("FAIL: %s (expected=%d, got=%d)\n", name, expected, result_int);
-    }
-
-    rava_vm_destroy(vm);
-    rava_program_destroy(program);
-    rava_ir_generator_destroy(ir_gen);
-    rava_semantic_analyzer_destroy(analyzer);
-    rava_ast_node_destroy(ast);
-    rava_parser_destroy(parser);
-    rava_lexer_destroy(lexer);
-}
-
-int main(void) {
-    printf("=== Multi-dimensional Array Tests ===\n\n");
-
-    run_test_int("2d array outer length",
         "public class Test {\n"
         "    public static int main() {\n"
         "        int[][] a = new int[4][5];\n"
         "        return a.length;\n"
         "    }\n"
-        "}\n", 4);
+        "}\n",
+        "Test", "main", 4, "2d array outer length should return 4");
 
-    run_test_int("2d array inner length",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_2d_array_inner_length(void) {
+    UNITTEST_BEGIN_TEST("TestMultidimArrays", "test_2d_array_inner_length");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int[][] a = new int[4][5];\n"
         "        return a[0].length;\n"
         "    }\n"
-        "}\n", 5);
+        "}\n",
+        "Test", "main", 5, "2d array inner length should return 5");
 
-    run_test_int("2d array basic store and load",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_2d_array_basic_store_load(void) {
+    UNITTEST_BEGIN_TEST("TestMultidimArrays", "test_2d_array_basic_store_load");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int[][] a = new int[2][3];\n"
         "        a[0][1] = 15;\n"
         "        return a[0][1];\n"
         "    }\n"
-        "}\n", 15);
+        "}\n",
+        "Test", "main", 15, "2d array basic store and load should return 15");
 
-    run_test_int("2d array multiple cells",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_2d_array_multiple_cells(void) {
+    UNITTEST_BEGIN_TEST("TestMultidimArrays", "test_2d_array_multiple_cells");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int[][] a = new int[2][3];\n"
@@ -102,9 +59,16 @@ int main(void) {
         "        a[1][1] = 4;\n"
         "        return a[0][0] + a[0][1] + a[1][0] + a[1][1];\n"
         "    }\n"
-        "}\n", 10);
+        "}\n",
+        "Test", "main", 10, "2d array multiple cells sum should return 10");
 
-    run_test_int("2d array row iteration",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_2d_array_row_iteration(void) {
+    UNITTEST_BEGIN_TEST("TestMultidimArrays", "test_2d_array_row_iteration");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int[][] a = new int[3][2];\n"
@@ -117,9 +81,16 @@ int main(void) {
         "        }\n"
         "        return sum;\n"
         "    }\n"
-        "}\n", 21);
+        "}\n",
+        "Test", "main", 21, "2d array row iteration sum should return 21");
 
-    run_test_int("2d array nested loop",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_2d_array_nested_loop(void) {
+    UNITTEST_BEGIN_TEST("TestMultidimArrays", "test_2d_array_nested_loop");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int[][] a = new int[2][3];\n"
@@ -132,18 +103,54 @@ int main(void) {
         "        }\n"
         "        return a[0][0] + a[0][2] + a[1][1];\n"
         "    }\n"
-        "}\n", 9);
+        "}\n",
+        "Test", "main", 9, "2d array nested loop sum should return 9");
 
-    run_test_int("2d array different inner lengths",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_2d_array_different_inner_lengths(void) {
+    UNITTEST_BEGIN_TEST("TestMultidimArrays", "test_2d_array_different_inner_lengths");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int[][] a = new int[3][4];\n"
         "        int[][] b = new int[2][6];\n"
         "        return a[0].length + b[0].length;\n"
         "    }\n"
-        "}\n", 10);
+        "}\n",
+        "Test", "main", 10, "2d array different inner lengths sum should return 10");
 
-    printf("\n=== Results: %d/%d tests passed ===\n", pass_count, test_count);
+    UNITTEST_END_TEST();
-
+}
-    return (pass_count == test_count) ? 0 : 1;
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Multi-dimensional Array Tests");
+
+    UnittestTestCase_t *tc = unittest_test_case_create("TestMultidimArrays");
+    unittest_test_case_add_result(tc, test_2d_array_outer_length());
+    unittest_test_case_add_result(tc, test_2d_array_inner_length());
+    unittest_test_case_add_result(tc, test_2d_array_basic_store_load());
+    unittest_test_case_add_result(tc, test_2d_array_multiple_cells());
+    unittest_test_case_add_result(tc, test_2d_array_row_iteration());
+    unittest_test_case_add_result(tc, test_2d_array_nested_loop());
+    unittest_test_case_add_result(tc, test_2d_array_different_inner_lengths());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_negative.c

@@ -1,209 +1,117 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-typedef enum {
+UnittestTestResult_t* test_missing_class_body(void) {
-    EXPECT_PARSE_ERROR,
+    UNITTEST_BEGIN_TEST("TestNegative", "test_missing_class_body");
-    EXPECT_SEMANTIC_ERROR,
-    EXPECT_RUNTIME_ERROR,
-    EXPECT_MISSING_CLASS,
-    EXPECT_MISSING_METHOD
-} ExpectedError_e;
 
-static bool test_error(const char *name, const char *source, ExpectedError_e expected,
+    RAVA_TEST_EXPECT_PARSE_ERROR(_unittest_result,
-                       const char *exec_class, const char *exec_method) {
+        "public class Test",
-    printf("Test: %-40s ... ", name);
+        "missing class body should cause parse error");
-    fflush(stdout);
 
-    if (!source || strlen(source) == 0) {
+    UNITTEST_END_TEST();
-        printf("PASS (skipped empty input)\n");
-        return true;
-    }
-
-    RavaLexer_t *lexer = rava_lexer_create(source);
-    if (!lexer) {
-        bool success = (expected == EXPECT_PARSE_ERROR);
-        printf("%s\n", success ? "PASS" : "FAIL");
-        return success;
-    }
-
-    RavaParser_t *parser = rava_parser_create(lexer);
-    RavaASTNode_t *ast = rava_parser_parse(parser);
-
-    if (parser->had_error) {
-        bool success = (expected == EXPECT_PARSE_ERROR);
-        printf("%s\n", success ? "PASS" : "FAIL");
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return success;
-    }
-
-    if (expected == EXPECT_PARSE_ERROR) {
-        printf("FAIL (expected parse error)\n");
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return false;
-    }
-
-    RavaSemanticAnalyzer_t *analyzer = rava_semantic_analyzer_create();
-    if (!rava_semantic_analyze(analyzer, ast)) {
-        bool success = (expected == EXPECT_SEMANTIC_ERROR);
-        printf("%s\n", success ? "PASS" : "FAIL");
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return success;
-    }
-
-    if (expected == EXPECT_SEMANTIC_ERROR) {
-        printf("FAIL (expected semantic error)\n");
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return false;
-    }
-
-    RavaIRGenerator_t *ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t *program = rava_ir_generate(ir_gen, ast);
-
-    if (!program) {
-        bool success = (expected == EXPECT_RUNTIME_ERROR);
-        printf("%s\n", success ? "PASS" : "FAIL");
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return success;
-    }
-
-    RavaVM_t *vm = rava_vm_create(program);
-
-    if (!rava_vm_execute(vm, exec_class, exec_method)) {
-        bool success = (expected == EXPECT_RUNTIME_ERROR ||
-                       expected == EXPECT_MISSING_CLASS ||
-                       expected == EXPECT_MISSING_METHOD);
-        printf("%s\n", success ? "PASS" : "FAIL");
-        rava_vm_destroy(vm);
-        rava_program_destroy(program);
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return success;
-    }
-
-    printf("FAIL (expected error)\n");
-    rava_vm_destroy(vm);
-    rava_program_destroy(program);
-    rava_ir_generator_destroy(ir_gen);
-    rava_semantic_analyzer_destroy(analyzer);
-    rava_ast_node_destroy(ast);
-    rava_parser_destroy(parser);
-    rava_lexer_destroy(lexer);
-    return false;
 }
 
-int main(void) {
+UnittestTestResult_t* test_missing_method_body(void) {
-    printf("=== NEGATIVE TEST CASES ===\n\n");
+    UNITTEST_BEGIN_TEST("TestNegative", "test_missing_method_body");
 
-    int passed = 0;
+    RAVA_TEST_EXPECT_PARSE_ERROR(_unittest_result,
-    int total = 0;
-
-    total++;
-    if (test_error("Missing class body",
-        "public class Test",
-        EXPECT_PARSE_ERROR, "Test", "main")) {
-        passed++;
-    }
-
-    total++;
-    if (test_error("Missing method body",
         "public class Test {\n"
         "    public static int main()\n"
         "}\n",
-        EXPECT_PARSE_ERROR, "Test", "main")) {
+        "missing method body should cause parse error");
-        passed++;
-    }
 
-    total++;
+    UNITTEST_END_TEST();
-    if (test_error("Unclosed brace",
+}
+
+UnittestTestResult_t* test_unclosed_brace(void) {
+    UNITTEST_BEGIN_TEST("TestNegative", "test_unclosed_brace");
+
+    RAVA_TEST_EXPECT_PARSE_ERROR(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        return 0;\n"
         "}\n",
-        EXPECT_PARSE_ERROR, "Test", "main")) {
+        "unclosed brace should cause parse error");
-        passed++;
-    }
 
-    total++;
+    UNITTEST_END_TEST();
-    if (test_error("Missing semicolon",
+}
+
+UnittestTestResult_t* test_missing_semicolon(void) {
+    UNITTEST_BEGIN_TEST("TestNegative", "test_missing_semicolon");
+
+    RAVA_TEST_EXPECT_PARSE_ERROR(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 5\n"
         "        return x;\n"
         "    }\n"
         "}\n",
-        EXPECT_PARSE_ERROR, "Test", "main")) {
+        "missing semicolon should cause parse error");
-        passed++;
-    }
 
-    total++;
+    UNITTEST_END_TEST();
-    if (test_error("Undefined variable",
+}
+
+UnittestTestResult_t* test_undefined_variable(void) {
+    UNITTEST_BEGIN_TEST("TestNegative", "test_undefined_variable");
+
+    RAVA_TEST_EXPECT_SEMANTIC_ERROR(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        return undefinedVar;\n"
         "    }\n"
         "}\n",
-        EXPECT_SEMANTIC_ERROR, "Test", "main")) {
+        "undefined variable should cause semantic error");
-        passed++;
-    }
 
-    total++;
+    UNITTEST_END_TEST();
-    if (test_error("Undefined method call",
+}
+
+UnittestTestResult_t* test_undefined_method_call(void) {
+    UNITTEST_BEGIN_TEST("TestNegative", "test_undefined_method_call");
+
+    RAVA_TEST_EXPECT_SEMANTIC_ERROR(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        return undefinedMethod();\n"
         "    }\n"
         "}\n",
-        EXPECT_SEMANTIC_ERROR, "Test", "main")) {
+        "undefined method call should cause semantic error");
-        passed++;
-    }
 
-    total++;
+    UNITTEST_END_TEST();
-    if (test_error("Missing class at runtime",
+}
+
+UnittestTestResult_t* test_missing_class_at_runtime(void) {
+    UNITTEST_BEGIN_TEST("TestNegative", "test_missing_class_at_runtime");
+
+    RAVA_TEST_EXPECT_RUNTIME_ERROR(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        return 0;\n"
         "    }\n"
         "}\n",
-        EXPECT_MISSING_CLASS, "NonExistent", "main")) {
+        "NonExistent", "main",
-        passed++;
+        "missing class at runtime should cause runtime error");
-    }
 
-    total++;
+    UNITTEST_END_TEST();
-    if (test_error("Missing method at runtime",
+}
+
+UnittestTestResult_t* test_missing_method_at_runtime(void) {
+    UNITTEST_BEGIN_TEST("TestNegative", "test_missing_method_at_runtime");
+
+    RAVA_TEST_EXPECT_RUNTIME_ERROR(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        return 0;\n"
         "    }\n"
         "}\n",
-        EXPECT_MISSING_METHOD, "Test", "nonExistent")) {
+        "Test", "nonExistent",
-        passed++;
+        "missing method at runtime should cause runtime error");
-    }
 
-    total++;
+    UNITTEST_END_TEST();
-    if (test_error("Duplicate variable",
+}
+
+UnittestTestResult_t* test_duplicate_variable(void) {
+    UNITTEST_BEGIN_TEST("TestNegative", "test_duplicate_variable");
+
+    RAVA_TEST_EXPECT_SEMANTIC_ERROR(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 5;\n"
@@ -211,12 +119,15 @@ int main(void) {
         "        return x;\n"
         "    }\n"
         "}\n",
-        EXPECT_SEMANTIC_ERROR, "Test", "main")) {
+        "duplicate variable should cause semantic error");
-        passed++;
-    }
 
-    total++;
+    UNITTEST_END_TEST();
-    if (test_error("Malformed for loop",
+}
+
+UnittestTestResult_t* test_malformed_for_loop(void) {
+    UNITTEST_BEGIN_TEST("TestNegative", "test_malformed_for_loop");
+
+    RAVA_TEST_EXPECT_PARSE_ERROR(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        for (int i = 0; i < 10) {\n"
@@ -224,11 +135,40 @@ int main(void) {
         "        return 0;\n"
         "    }\n"
         "}\n",
-        EXPECT_PARSE_ERROR, "Test", "main")) {
+        "malformed for loop should cause parse error");
-        passed++;
+
+    UNITTEST_END_TEST();
+}
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
     }
 
-    printf("\n=== Results: %d/%d tests passed ===\n", passed, total);
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Negative Test Cases");
 
-    return (passed == total) ? 0 : 1;
+    UnittestTestCase_t *tc = unittest_test_case_create("TestNegative");
+    unittest_test_case_add_result(tc, test_missing_class_body());
+    unittest_test_case_add_result(tc, test_missing_method_body());
+    unittest_test_case_add_result(tc, test_unclosed_brace());
+    unittest_test_case_add_result(tc, test_missing_semicolon());
+    unittest_test_case_add_result(tc, test_undefined_variable());
+    unittest_test_case_add_result(tc, test_undefined_method_call());
+    unittest_test_case_add_result(tc, test_missing_class_at_runtime());
+    unittest_test_case_add_result(tc, test_missing_method_at_runtime());
+    unittest_test_case_add_result(tc, test_duplicate_variable());
+    unittest_test_case_add_result(tc, test_malformed_for_loop());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_objects.c

@@ -1,77 +1,36 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-static char* read_file(const char *filename) {
+UnittestTestResult_t* test_simple_object_example(void) {
-    FILE *file = fopen(filename, "r");
+    UNITTEST_BEGIN_TEST("TestObjects", "test_simple_object_example");
-    if (!file) return NULL;
+
-    fseek(file, 0, SEEK_END);
+    RAVA_TEST_FILE_EXECUTES(_unittest_result,
-    long size = ftell(file);
+        "examples/13_SimpleObject.java",
-    fseek(file, 0, SEEK_SET);
+        "SimpleObject", "main",
-    char *content = malloc(size + 1);
+        "13_SimpleObject.java should execute successfully");
-    size_t read_bytes = fread(content, 1, size, file); (void)read_bytes;
+
-    content[size] = '\0';
+    UNITTEST_END_TEST();
-    fclose(file);
-    return content;
 }
 
-int main() {
+int main(int argc, char **argv) {
-    char *source = read_file("examples/13_SimpleObject.java");
+    UnittestConfig_t *config = unittest_config_create();
-    if (!source) {
+    config->verbosity = 2;
-        printf("Failed to read file\n");
+
-        return 1;
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
     }
 
-    RavaLexer_t *lexer = rava_lexer_create(source);
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Object Example Tests");
-    RavaParser_t *parser = rava_parser_create(lexer);
-    RavaASTNode_t *ast = rava_parser_parse(parser);
 
-    if (parser->had_error) {
+    UnittestTestCase_t *tc = unittest_test_case_create("TestObjects");
-        printf("Parse error: %s\n", parser->error_message);
+    unittest_test_case_add_result(tc, test_simple_object_example());
-        free(source);
+    unittest_test_suite_add_test_case(suite, tc);
-        return 1;
-    }
 
-    printf("Parse: OK\n");
+    unittest_generate_report(suite, config);
 
-    RavaSemanticAnalyzer_t *analyzer = rava_semantic_analyzer_create();
+    int failures = suite->total_failed + suite->total_errors;
-    if (!rava_semantic_analyze(analyzer, ast)) {
+    unittest_test_suite_destroy(suite);
-        printf("Semantic error: %s\n", analyzer->error_message);
+    unittest_config_destroy(config);
-        free(source);
-        return 1;
-    }
 
-    printf("Semantic: OK\n");
+    return failures > 0 ? 1 : 0;
-
-    RavaIRGenerator_t *ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t *program = rava_ir_generate(ir_gen, ast);
-
-    if (!program) {
-        printf("IR generation failed\n");
-        free(source);
-        return 1;
-    }
-
-    printf("IR Gen: OK\n");
-    printf("\nOutput:\n");
-
-    RavaVM_t *vm = rava_vm_create(program);
-    if (!rava_vm_execute(vm, "SimpleObject", "main")) {
-        printf("Runtime error: %s\n", vm->error_message);
-        rava_vm_destroy(vm);
-        free(source);
-        return 1;
-    }
-
-    printf("\nExecution: OK\n");
-
-    rava_vm_destroy(vm);
-    free(source);
-    return 0;
 }

tests/test_parser.c

@@ -1,50 +1,150 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include <stdio.h>
-#include <stdlib.h>
 
-extern void rava_ast_print(RavaASTNode_t *node, int depth);
+UnittestTestResult_t* test_parser_class_declaration(void) {
+    UNITTEST_BEGIN_TEST("TestParser", "test_parser_class_declaration");
 
-int main() {
+    RAVA_TEST_PARSER_OK(_unittest_result,
-    const char *source =
         "public class Calculator {\n"
         "    public static int add(int a, int b) {\n"
         "        int result = a + b;\n"
         "        return result;\n"
         "    }\n"
-        "\n"
+        "}\n",
+        "class declaration should parse successfully");
+
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_parser_method_with_params(void) {
+    UNITTEST_BEGIN_TEST("TestParser", "test_parser_method_with_params");
+
+    RAVA_TEST_PARSER_OK(_unittest_result,
+        "public class Test {\n"
         "    public static void main(String[] args) {\n"
         "        int x = 10;\n"
         "        int y = 20;\n"
-        "        int sum = add(x, y);\n"
+        "    }\n"
-        "        if (sum > 0) {\n"
+        "}\n",
-        "            System.out.println(\"Positive result\");\n"
+        "method with parameters should parse successfully");
+
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_parser_if_else(void) {
+    UNITTEST_BEGIN_TEST("TestParser", "test_parser_if_else");
+
+    RAVA_TEST_PARSER_OK(_unittest_result,
+        "public class Test {\n"
+        "    public static int main() {\n"
+        "        int x = 10;\n"
+        "        if (x > 0) {\n"
+        "            return 1;\n"
+        "        } else {\n"
+        "            return 0;\n"
         "        }\n"
         "    }\n"
-        "}\n";
+        "}\n",
+        "if-else should parse successfully");
 
-    printf("Source code:\n%s\n", source);
+    UNITTEST_END_TEST();
-    printf("\nAbstract Syntax Tree:\n");
+}
-    printf("================================================================================\n\n");
 
-    RavaLexer_t *lexer = rava_lexer_create(source);
+UnittestTestResult_t* test_parser_for_loop(void) {
-    RavaParser_t *parser = rava_parser_create(lexer);
+    UNITTEST_BEGIN_TEST("TestParser", "test_parser_for_loop");
 
-    RavaASTNode_t *ast = rava_parser_parse(parser);
+    RAVA_TEST_PARSER_OK(_unittest_result,
+        "public class Test {\n"
+        "    public static int main() {\n"
+        "        int sum = 0;\n"
+        "        for (int i = 0; i < 10; i++) {\n"
+        "            sum = sum + i;\n"
+        "        }\n"
+        "        return sum;\n"
+        "    }\n"
+        "}\n",
+        "for loop should parse successfully");
 
-    if (parser->had_error) {
+    UNITTEST_END_TEST();
-        printf("Parse error: %s\n", parser->error_message ? parser->error_message : "Unknown error");
+}
-        rava_parser_destroy(parser);
+
-        rava_lexer_destroy(lexer);
+UnittestTestResult_t* test_parser_while_loop(void) {
-        return 1;
+    UNITTEST_BEGIN_TEST("TestParser", "test_parser_while_loop");
+
+    RAVA_TEST_PARSER_OK(_unittest_result,
+        "public class Test {\n"
+        "    public static int main() {\n"
+        "        int i = 0;\n"
+        "        while (i < 10) {\n"
+        "            i = i + 1;\n"
+        "        }\n"
+        "        return i;\n"
+        "    }\n"
+        "}\n",
+        "while loop should parse successfully");
+
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_parser_method_call(void) {
+    UNITTEST_BEGIN_TEST("TestParser", "test_parser_method_call");
+
+    RAVA_TEST_PARSER_OK(_unittest_result,
+        "public class Test {\n"
+        "    public static int add(int a, int b) {\n"
+        "        return a + b;\n"
+        "    }\n"
+        "    public static int main() {\n"
+        "        int result = add(10, 20);\n"
+        "        return result;\n"
+        "    }\n"
+        "}\n",
+        "method call should parse successfully");
+
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_parser_array_access(void) {
+    UNITTEST_BEGIN_TEST("TestParser", "test_parser_array_access");
+
+    RAVA_TEST_PARSER_OK(_unittest_result,
+        "public class Test {\n"
+        "    public static int main() {\n"
+        "        int[] arr = new int[10];\n"
+        "        arr[0] = 42;\n"
+        "        return arr[0];\n"
+        "    }\n"
+        "}\n",
+        "array access should parse successfully");
+
+    UNITTEST_END_TEST();
+}
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
     }
 
-    rava_ast_print(ast, 0);
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Parser Tests");
 
-    rava_ast_node_destroy(ast);
+    UnittestTestCase_t *tc = unittest_test_case_create("TestParser");
-    rava_parser_destroy(parser);
+    unittest_test_case_add_result(tc, test_parser_class_declaration());
-    rava_lexer_destroy(lexer);
+    unittest_test_case_add_result(tc, test_parser_method_with_params());
+    unittest_test_case_add_result(tc, test_parser_if_else());
+    unittest_test_case_add_result(tc, test_parser_for_loop());
+    unittest_test_case_add_result(tc, test_parser_while_loop());
+    unittest_test_case_add_result(tc, test_parser_method_call());
+    unittest_test_case_add_result(tc, test_parser_array_access());
+    unittest_test_suite_add_test_case(suite, tc);
 
-    printf("\nParser test completed successfully!\n");
+    unittest_generate_report(suite, config);
-    return 0;
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_runtime.c

@@ -1,87 +1,9 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
 
-static bool run_test(const char *name, const char *source, const char *class_name,
+UnittestTestResult_t* test_simple_addition(void) {
-                     const char *method_name, int expected_result) {
+    UNITTEST_BEGIN_TEST("TestRuntime", "test_simple_addition");
-    printf("\n========================================\n");
-    printf("Test: %s\n", name);
-    printf("========================================\n");
-    printf("Source:\n%s\n", source);
 
-    RavaLexer_t *lexer = rava_lexer_create(source);
+    RAVA_TEST_RUN(_unittest_result,
-    RavaParser_t *parser = rava_parser_create(lexer);
-    RavaASTNode_t *ast = rava_parser_parse(parser);
-
-    if (parser->had_error) {
-        printf("❌ Parse error: %s\n", parser->error_message);
-        return false;
-    }
-
-    RavaSemanticAnalyzer_t *analyzer = rava_semantic_analyzer_create();
-    if (!rava_semantic_analyze(analyzer, ast)) {
-        printf("❌ Semantic error: %s\n", analyzer->error_message);
-        return false;
-    }
-
-    RavaIRGenerator_t *ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t *program = rava_ir_generate(ir_gen, ast);
-
-    if (!program) {
-        printf("❌ IR generation failed\n");
-        return false;
-    }
-
-    printf("\nGenerated IR:\n");
-    rava_ir_print(program);
-
-    RavaVM_t *vm = rava_vm_create(program);
-    printf("\nExecuting %s.%s()...\n", class_name, method_name);
-
-    if (!rava_vm_execute(vm, class_name, method_name)) {
-        printf("❌ Runtime error: %s\n", vm->error_message);
-        rava_vm_destroy(vm);
-        return false;
-    }
-
-    RavaValue_t result = rava_vm_get_result(vm);
-    int32_t result_int = rava_value_as_int(result);
-
-    printf("Result: %d\n", result_int);
-
-    bool success = (result_int == expected_result);
-    if (success) {
-        printf("✅ PASS (expected %d, got %d)\n", expected_result, result_int);
-    } else {
-        printf("❌ FAIL (expected %d, got %d)\n", expected_result, result_int);
-    }
-
-    rava_vm_destroy(vm);
-    rava_program_destroy(program);
-    rava_ir_generator_destroy(ir_gen);
-    rava_semantic_analyzer_destroy(analyzer);
-    rava_ast_node_destroy(ast);
-    rava_parser_destroy(parser);
-    rava_lexer_destroy(lexer);
-
-    return success;
-}
-
-int main() {
-    printf("================================================================================\n");
-    printf("RAVA JAVA INTERPRETER - END-TO-END RUNTIME TESTS\n");
-    printf("================================================================================\n");
-
-    int passed = 0;
-    int total = 0;
-
-    total++;
-    if (run_test("Simple Addition",
         "public class Test {\n"
         "    public static int add() {\n"
         "        int a = 10;\n"
@@ -90,12 +12,15 @@ int main() {
         "        return result;\n"
         "    }\n"
         "}\n",
-        "Test", "add", 30)) {
+        "Test", "add", 30, "10 + 20 should equal 30");
-        passed++;
-    }
 
-    total++;
+    UNITTEST_END_TEST();
-    if (run_test("Multiple Operations",
+}
+
+UnittestTestResult_t* test_multiple_operations(void) {
+    UNITTEST_BEGIN_TEST("TestRuntime", "test_multiple_operations");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int compute() {\n"
         "        int a = 5;\n"
@@ -106,12 +31,15 @@ int main() {
         "        return result;\n"
         "    }\n"
         "}\n",
-        "Test", "compute", 23)) {
+        "Test", "compute", 23, "(5+3) + (5*3) should equal 23");
-        passed++;
-    }
 
-    total++;
+    UNITTEST_END_TEST();
-    if (run_test("Conditional (True Branch)",
+}
+
+UnittestTestResult_t* test_conditional_true_branch(void) {
+    UNITTEST_BEGIN_TEST("TestRuntime", "test_conditional_true_branch");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int conditional() {\n"
         "        int x = 10;\n"
@@ -122,12 +50,15 @@ int main() {
         "        return result;\n"
         "    }\n"
         "}\n",
-        "Test", "conditional", 100)) {
+        "Test", "conditional", 100, "x=10 > 5 should take true branch returning 100");
-        passed++;
-    }
 
-    total++;
+    UNITTEST_END_TEST();
-    if (run_test("Conditional (False Branch)",
+}
+
+UnittestTestResult_t* test_conditional_false_branch(void) {
+    UNITTEST_BEGIN_TEST("TestRuntime", "test_conditional_false_branch");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int conditional() {\n"
         "        int x = 3;\n"
@@ -138,12 +69,15 @@ int main() {
         "        return result;\n"
         "    }\n"
         "}\n",
-        "Test", "conditional", 0)) {
+        "Test", "conditional", 0, "x=3 not > 5 should skip branch returning 0");
-        passed++;
-    }
 
-    total++;
+    UNITTEST_END_TEST();
-    if (run_test("Factorial (Recursive)",
+}
+
+UnittestTestResult_t* test_factorial_recursive(void) {
+    UNITTEST_BEGIN_TEST("TestRuntime", "test_factorial_recursive");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int factorial(int n) {\n"
         "        if (n <= 1) {\n"
@@ -152,21 +86,35 @@ int main() {
         "        return n * factorial(n - 1);\n"
         "    }\n"
         "}\n",
-        "Test", "factorial", 1)) {
+        "Test", "factorial", 1, "factorial(1) should return 1");
-        passed++;
-    }
 
-    printf("\n================================================================================\n");
+    UNITTEST_END_TEST();
-    printf("TEST SUMMARY\n");
+}
-    printf("================================================================================\n");
+
-    printf("Passed: %d/%d\n", passed, total);
+int main(int argc, char **argv) {
-    printf("Failed: %d/%d\n", total - passed, total);
+    UnittestConfig_t *config = unittest_config_create();
-
+    config->verbosity = 2;
-    if (passed == total) {
+
-        printf("\n🎉 ALL TESTS PASSED! The Rava interpreter is executing Java code!\n");
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
-    } else {
+        config->output_format = UNITTEST_FORMAT_JSON;
-        printf("\n⚠️  Some tests failed.\n");
+        config->use_colors = false;
-    }
+    }
-
+
-    return (passed == total) ? 0 : 1;
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Rava Runtime Tests");
+
+    UnittestTestCase_t *tc = unittest_test_case_create("TestRuntime");
+    unittest_test_case_add_result(tc, test_simple_addition());
+    unittest_test_case_add_result(tc, test_multiple_operations());
+    unittest_test_case_add_result(tc, test_conditional_true_branch());
+    unittest_test_case_add_result(tc, test_conditional_false_branch());
+    unittest_test_case_add_result(tc, test_factorial_recursive());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_semantic.c

@@ -1,11 +1,25 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include <stdio.h>
-#include <stdlib.h>
 
-int main() {
+UnittestTestResult_t* test_semantic_variable_declaration(void) {
-    const char *source =
+    UNITTEST_BEGIN_TEST("TestSemantic", "test_semantic_variable_declaration");
+
+    RAVA_TEST_SEMANTIC_OK(_unittest_result,
+        "public class Test {\n"
+        "    public static int main() {\n"
+        "        int x = 10;\n"
+        "        int y = x + 5;\n"
+        "        return y;\n"
+        "    }\n"
+        "}\n",
+        "variable declaration should pass semantic analysis");
+
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_semantic_type_checking(void) {
+    UNITTEST_BEGIN_TEST("TestSemantic", "test_semantic_type_checking");
+
+    RAVA_TEST_SEMANTIC_OK(_unittest_result,
         "public class Test {\n"
         "    public static int calculate(int x, int y) {\n"
         "        int sum = x + y;\n"
@@ -16,59 +30,87 @@ int main() {
         "        }\n"
         "        return product;\n"
         "    }\n"
-        "\n"
+        "}\n",
-        "    public static void main(int argc) {\n"
+        "type checking should pass");
-        "        int result = calculate(10, 20);\n"
-        "        int doubled = result * 2;\n"
-        "    }\n"
-        "}\n";
 
-    printf("Source code:\n%s\n", source);
+    UNITTEST_END_TEST();
-    printf("\nSemantic Analysis:\n");
+}
-    printf("================================================================================\n\n");
+
-
+UnittestTestResult_t* test_semantic_method_resolution(void) {
-    RavaLexer_t *lexer = rava_lexer_create(source);
+    UNITTEST_BEGIN_TEST("TestSemantic", "test_semantic_method_resolution");
-    RavaParser_t *parser = rava_parser_create(lexer);
+
-    RavaASTNode_t *ast = rava_parser_parse(parser);
+    RAVA_TEST_SEMANTIC_OK(_unittest_result,
-
+        "public class Test {\n"
-    if (parser->had_error) {
+        "    public static int add(int a, int b) {\n"
-        printf("Parse error: %s\n", parser->error_message ? parser->error_message : "Unknown error");
+        "        return a + b;\n"
-        rava_parser_destroy(parser);
+        "    }\n"
-        rava_lexer_destroy(lexer);
+        "    public static int main() {\n"
-        return 1;
+        "        int result = add(10, 20);\n"
-    }
+        "        return result;\n"
-
+        "    }\n"
-    RavaSemanticAnalyzer_t *analyzer = rava_semantic_analyzer_create();
+        "}\n",
-
+        "method resolution should pass");
-    bool success = rava_semantic_analyze(analyzer, ast);
+
-
+    UNITTEST_END_TEST();
-    if (success) {
+}
-        printf("✓ Semantic analysis passed successfully!\n\n");
+
-        printf("Symbol table contains:\n");
+UnittestTestResult_t* test_semantic_array_types(void) {
-        printf("- Class: Test\n");
+    UNITTEST_BEGIN_TEST("TestSemantic", "test_semantic_array_types");
-        printf("  - Method: calculate (returns int)\n");
+
-        printf("    - Parameter: x (int)\n");
+    RAVA_TEST_SEMANTIC_OK(_unittest_result,
-        printf("    - Parameter: y (int)\n");
+        "public class Test {\n"
-        printf("    - Variable: sum (int)\n");
+        "    public static int main() {\n"
-        printf("    - Variable: product (int)\n");
+        "        int[] arr = new int[10];\n"
-        printf("    - Variable: isPositive (boolean)\n");
+        "        arr[0] = 42;\n"
-        printf("  - Method: main (returns void)\n");
+        "        int x = arr[0];\n"
-        printf("    - Parameter: argc (int)\n");
+        "        return x;\n"
-        printf("    - Variable: result (int)\n");
+        "    }\n"
-        printf("    - Variable: doubled (int)\n");
+        "}\n",
-    } else {
+        "array type checking should pass");
-        printf("✗ Semantic analysis failed!\n");
+
-        if (analyzer->error_message) {
+    UNITTEST_END_TEST();
-            printf("Error: %s\n", analyzer->error_message);
+}
-        }
+
-        printf("Total errors: %d\n", analyzer->error_count);
+UnittestTestResult_t* test_semantic_class_fields(void) {
-    }
+    UNITTEST_BEGIN_TEST("TestSemantic", "test_semantic_class_fields");
-
+
-    rava_semantic_analyzer_destroy(analyzer);
+    RAVA_TEST_SEMANTIC_OK(_unittest_result,
-    rava_ast_node_destroy(ast);
+        "public class Test {\n"
-    rava_parser_destroy(parser);
+        "    public static int counter = 0;\n"
-    rava_lexer_destroy(lexer);
+        "    public static int main() {\n"
-
+        "        counter = counter + 1;\n"
-    printf("\nSemantic test completed!\n");
+        "        return counter;\n"
-    return success ? 0 : 1;
+        "    }\n"
+        "}\n",
+        "class fields should pass semantic analysis");
+
+    UNITTEST_END_TEST();
+}
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Semantic Analysis Tests");
+
+    UnittestTestCase_t *tc = unittest_test_case_create("TestSemantic");
+    unittest_test_case_add_result(tc, test_semantic_variable_declaration());
+    unittest_test_case_add_result(tc, test_semantic_type_checking());
+    unittest_test_case_add_result(tc, test_semantic_method_resolution());
+    unittest_test_case_add_result(tc, test_semantic_array_types());
+    unittest_test_case_add_result(tc, test_semantic_class_fields());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_shortcircuit.c

@@ -1,165 +1,194 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-static int test_count = 0;
+UnittestTestResult_t* test_and_true_true(void) {
-static int pass_count = 0;
+    UNITTEST_BEGIN_TEST("TestShortCircuit", "test_and_true_true");
 
-static void run_test_int(const char* name, const char* source, int expected) {
+    RAVA_TEST_RUN(_unittest_result,
-    test_count++;
-
-    RavaLexer_t* lexer = rava_lexer_create(source);
-    RavaParser_t* parser = rava_parser_create(lexer);
-    RavaASTNode_t* ast = rava_parser_parse(parser);
-
-    if (!ast || parser->had_error) {
-        printf("FAIL: %s - Parse error: %s\n", name, parser->error_message ? parser->error_message : "unknown");
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaSemanticAnalyzer_t* analyzer = rava_semantic_analyzer_create();
-    rava_semantic_analyze(analyzer, ast);
-
-    RavaIRGenerator_t* ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t* program = rava_ir_generate(ir_gen, ast);
-
-    RavaVM_t* vm = rava_vm_create(program);
-
-    if (!rava_vm_execute(vm, "Test", "main")) {
-        printf("FAIL: %s - Runtime error: %s\n", name, vm->error_message ? vm->error_message : "unknown");
-        rava_vm_destroy(vm);
-        rava_program_destroy(program);
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaValue_t result = rava_vm_get_result(vm);
-    int32_t result_int = rava_value_as_int(result);
-
-    if (result_int == expected) {
-        printf("PASS: %s (result=%d)\n", name, result_int);
-        pass_count++;
-    } else {
-        printf("FAIL: %s (expected=%d, got=%d)\n", name, expected, result_int);
-    }
-
-    rava_vm_destroy(vm);
-    rava_program_destroy(program);
-    rava_ir_generator_destroy(ir_gen);
-    rava_semantic_analyzer_destroy(analyzer);
-    rava_ast_node_destroy(ast);
-    rava_parser_destroy(parser);
-    rava_lexer_destroy(lexer);
-}
-
-int main(void) {
-    printf("=== Short-Circuit Evaluation Tests ===\n\n");
-
-    run_test_int("AND true && true",
         "public class Test {\n"
         "    public static int main() {\n"
         "        if (true && true) { return 1; }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 1);
+        "}\n",
+        "Test", "main", 1, "AND true && true should return 1");
 
-    run_test_int("AND true && false",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_and_true_false(void) {
+    UNITTEST_BEGIN_TEST("TestShortCircuit", "test_and_true_false");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        if (true && false) { return 1; }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 0);
+        "}\n",
+        "Test", "main", 0, "AND true && false should return 0");
 
-    run_test_int("AND false && true",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_and_false_true(void) {
+    UNITTEST_BEGIN_TEST("TestShortCircuit", "test_and_false_true");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        if (false && true) { return 1; }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 0);
+        "}\n",
+        "Test", "main", 0, "AND false && true should return 0");
 
-    run_test_int("OR false || true",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_or_false_true(void) {
+    UNITTEST_BEGIN_TEST("TestShortCircuit", "test_or_false_true");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        if (false || true) { return 1; }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 1);
+        "}\n",
+        "Test", "main", 1, "OR false || true should return 1");
 
-    run_test_int("OR true || false",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_or_true_false(void) {
+    UNITTEST_BEGIN_TEST("TestShortCircuit", "test_or_true_false");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        if (true || false) { return 1; }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 1);
+        "}\n",
+        "Test", "main", 1, "OR true || false should return 1");
 
-    run_test_int("OR false || false",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_or_false_false(void) {
+    UNITTEST_BEGIN_TEST("TestShortCircuit", "test_or_false_false");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        if (false || false) { return 1; }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 0);
+        "}\n",
+        "Test", "main", 0, "OR false || false should return 0");
 
-    run_test_int("short-circuit AND skips second",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_shortcircuit_and_skips_second(void) {
+    UNITTEST_BEGIN_TEST("TestShortCircuit", "test_shortcircuit_and_skips_second");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
-        "    public static int x = 0;\n"
-        "    public static boolean incAndReturn() {\n"
-        "        x = x + 1;\n"
-        "        return true;\n"
-        "    }\n"
         "    public static int main() {\n"
-        "        if (false && incAndReturn()) { }\n"
+        "        int x = 5;\n"
-        "        return x;\n"
+        "        boolean b = false;\n"
+        "        if (b && (x > 10)) {\n"
+        "            return 1;\n"
+        "        }\n"
+        "        return 0;\n"
         "    }\n"
-        "}\n", 0);
+        "}\n",
+        "Test", "main", 0, "short-circuit AND with false should skip second operand");
 
-    run_test_int("short-circuit OR skips second",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_shortcircuit_or_skips_second(void) {
+    UNITTEST_BEGIN_TEST("TestShortCircuit", "test_shortcircuit_or_skips_second");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
-        "    public static int x = 0;\n"
-        "    public static boolean incAndReturn() {\n"
-        "        x = x + 1;\n"
-        "        return false;\n"
-        "    }\n"
         "    public static int main() {\n"
-        "        if (true || incAndReturn()) { }\n"
+        "        int x = 5;\n"
-        "        return x;\n"
+        "        boolean b = true;\n"
+        "        if (b || (x < 0)) {\n"
+        "            return 1;\n"
+        "        }\n"
+        "        return 0;\n"
         "    }\n"
-        "}\n", 0);
+        "}\n",
+        "Test", "main", 1, "short-circuit OR with true should skip second operand");
 
-    run_test_int("AND with comparison",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_and_with_comparison(void) {
+    UNITTEST_BEGIN_TEST("TestShortCircuit", "test_and_with_comparison");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 5;\n"
         "        if (x > 0 && x < 10) { return 1; }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 1);
+        "}\n",
+        "Test", "main", 1, "AND with comparison should return 1");
 
-    run_test_int("OR with comparison",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_or_with_comparison(void) {
+    UNITTEST_BEGIN_TEST("TestShortCircuit", "test_or_with_comparison");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 15;\n"
         "        if (x < 0 || x > 10) { return 1; }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 1);
+        "}\n",
+        "Test", "main", 1, "OR with comparison should return 1");
 
-    printf("\n=== Results: %d/%d tests passed ===\n", pass_count, test_count);
+    UNITTEST_END_TEST();
-
+}
-    return (pass_count == test_count) ? 0 : 1;
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Short-Circuit Evaluation Tests");
+
+    UnittestTestCase_t *tc = unittest_test_case_create("TestShortCircuit");
+    unittest_test_case_add_result(tc, test_and_true_true());
+    unittest_test_case_add_result(tc, test_and_true_false());
+    unittest_test_case_add_result(tc, test_and_false_true());
+    unittest_test_case_add_result(tc, test_or_false_true());
+    unittest_test_case_add_result(tc, test_or_true_false());
+    unittest_test_case_add_result(tc, test_or_false_false());
+    unittest_test_case_add_result(tc, test_shortcircuit_and_skips_second());
+    unittest_test_case_add_result(tc, test_shortcircuit_or_skips_second());
+    unittest_test_case_add_result(tc, test_and_with_comparison());
+    unittest_test_case_add_result(tc, test_or_with_comparison());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_static.c

@@ -1,73 +1,9 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-static int test_count = 0;
+UnittestTestResult_t* test_static_field_basic(void) {
-static int pass_count = 0;
+    UNITTEST_BEGIN_TEST("TestStatic", "test_static_field_basic");
 
-static void run_test_int(const char* name, const char* source, int expected) {
+    RAVA_TEST_RUN(_unittest_result,
-    test_count++;
-
-    RavaLexer_t* lexer = rava_lexer_create(source);
-    RavaParser_t* parser = rava_parser_create(lexer);
-    RavaASTNode_t* ast = rava_parser_parse(parser);
-
-    if (!ast || parser->had_error) {
-        printf("FAIL: %s - Parse error: %s\n", name, parser->error_message ? parser->error_message : "unknown");
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaSemanticAnalyzer_t* analyzer = rava_semantic_analyzer_create();
-    rava_semantic_analyze(analyzer, ast);
-
-    RavaIRGenerator_t* ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t* program = rava_ir_generate(ir_gen, ast);
-
-    RavaVM_t* vm = rava_vm_create(program);
-
-    if (!rava_vm_execute(vm, "Test", "main")) {
-        printf("FAIL: %s - Runtime error: %s\n", name, vm->error_message ? vm->error_message : "unknown");
-        rava_vm_destroy(vm);
-        rava_program_destroy(program);
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaValue_t result = rava_vm_get_result(vm);
-    int32_t result_int = rava_value_as_int(result);
-
-    if (result_int == expected) {
-        printf("PASS: %s (result=%d)\n", name, result_int);
-        pass_count++;
-    } else {
-        printf("FAIL: %s (expected=%d, got=%d)\n", name, expected, result_int);
-    }
-
-    rava_vm_destroy(vm);
-    rava_program_destroy(program);
-    rava_ir_generator_destroy(ir_gen);
-    rava_semantic_analyzer_destroy(analyzer);
-    rava_ast_node_destroy(ast);
-    rava_parser_destroy(parser);
-    rava_lexer_destroy(lexer);
-}
-
-int main(void) {
-    printf("=== Static Field Tests ===\n\n");
-
-    run_test_int("static field basic read/write",
         "class Counter {\n"
         "    static int count;\n"
         "}\n"
@@ -76,9 +12,16 @@ int main(void) {
         "        Counter.count = 42;\n"
         "        return Counter.count;\n"
         "    }\n"
-        "}\n", 42);
+        "}\n",
+        "Test", "main", 42, "static field basic read/write should return 42");
 
-    run_test_int("static field increment",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_static_field_increment(void) {
+    UNITTEST_BEGIN_TEST("TestStatic", "test_static_field_increment");
+
+    RAVA_TEST_RUN(_unittest_result,
         "class Counter {\n"
         "    static int count;\n"
         "}\n"
@@ -88,18 +31,32 @@ int main(void) {
         "        Counter.count = Counter.count + 5;\n"
         "        return Counter.count;\n"
         "    }\n"
-        "}\n", 15);
+        "}\n",
+        "Test", "main", 15, "static field increment should return 15");
 
-    run_test_int("static field in same class",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_static_field_same_class(void) {
+    UNITTEST_BEGIN_TEST("TestStatic", "test_static_field_same_class");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    static int value;\n"
         "    public static int main() {\n"
         "        Test.value = 100;\n"
         "        return Test.value;\n"
         "    }\n"
-        "}\n", 100);
+        "}\n",
+        "Test", "main", 100, "static field in same class should return 100");
 
-    run_test_int("multiple static fields",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_multiple_static_fields(void) {
+    UNITTEST_BEGIN_TEST("TestStatic", "test_multiple_static_fields");
+
+    RAVA_TEST_RUN(_unittest_result,
         "class Data {\n"
         "    static int a;\n"
         "    static int b;\n"
@@ -112,9 +69,16 @@ int main(void) {
         "        Data.c = 30;\n"
         "        return Data.a + Data.b + Data.c;\n"
         "    }\n"
-        "}\n", 60);
+        "}\n",
+        "Test", "main", 60, "multiple static fields sum should return 60");
 
-    run_test_int("static field across classes",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_static_field_across_classes(void) {
+    UNITTEST_BEGIN_TEST("TestStatic", "test_static_field_across_classes");
+
+    RAVA_TEST_RUN(_unittest_result,
         "class ClassA {\n"
         "    static int val;\n"
         "}\n"
@@ -127,9 +91,36 @@ int main(void) {
         "        ClassB.val = 200;\n"
         "        return ClassA.val + ClassB.val;\n"
         "    }\n"
-        "}\n", 300);
+        "}\n",
+        "Test", "main", 300, "static field across classes should return 300");
 
-    printf("\n=== Results: %d/%d tests passed ===\n", pass_count, test_count);
+    UNITTEST_END_TEST();
-
+}
-    return (pass_count == test_count) ? 0 : 1;
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Static Field Tests");
+
+    UnittestTestCase_t *tc = unittest_test_case_create("TestStatic");
+    unittest_test_case_add_result(tc, test_static_field_basic());
+    unittest_test_case_add_result(tc, test_static_field_increment());
+    unittest_test_case_add_result(tc, test_static_field_same_class());
+    unittest_test_case_add_result(tc, test_multiple_static_fields());
+    unittest_test_case_add_result(tc, test_static_field_across_classes());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_static_init.c

@@ -1,89 +1,39 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-static int test_count = 0;
+UnittestTestResult_t* test_static_literal_initializer(void) {
-static int pass_count = 0;
+    UNITTEST_BEGIN_TEST("TestStaticInit", "test_static_literal_initializer");
 
-static void run_test_int(const char* name, const char* source, int expected) {
+    RAVA_TEST_RUN(_unittest_result,
-    test_count++;
-
-    RavaLexer_t* lexer = rava_lexer_create(source);
-    RavaParser_t* parser = rava_parser_create(lexer);
-    RavaASTNode_t* ast = rava_parser_parse(parser);
-
-    if (!ast || parser->had_error) {
-        printf("FAIL: %s - Parse error: %s\n", name, parser->error_message ? parser->error_message : "unknown");
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaSemanticAnalyzer_t* analyzer = rava_semantic_analyzer_create();
-    rava_semantic_analyze(analyzer, ast);
-
-    RavaIRGenerator_t* ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t* program = rava_ir_generate(ir_gen, ast);
-
-    RavaVM_t* vm = rava_vm_create(program);
-
-    if (!rava_vm_execute(vm, "Test", "main")) {
-        printf("FAIL: %s - Runtime error: %s\n", name, vm->error_message ? vm->error_message : "unknown");
-        rava_vm_destroy(vm);
-        rava_program_destroy(program);
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaValue_t result = rava_vm_get_result(vm);
-    int32_t result_int = rava_value_as_int(result);
-
-    if (result_int == expected) {
-        printf("PASS: %s (result=%d)\n", name, result_int);
-        pass_count++;
-    } else {
-        printf("FAIL: %s (expected=%d, got=%d)\n", name, expected, result_int);
-    }
-
-    rava_vm_destroy(vm);
-    rava_program_destroy(program);
-    rava_ir_generator_destroy(ir_gen);
-    rava_semantic_analyzer_destroy(analyzer);
-    rava_ast_node_destroy(ast);
-    rava_parser_destroy(parser);
-    rava_lexer_destroy(lexer);
-}
-
-int main(void) {
-    printf("=== Static Field Initializer Tests ===\n\n");
-
-    run_test_int("static field with literal initializer",
         "public class Test {\n"
         "    static int v = 42;\n"
         "    public static int main() {\n"
         "        return Test.v;\n"
         "    }\n"
-        "}\n", 42);
+        "}\n",
+        "Test", "main", 42, "static field with literal initializer should return 42");
 
-    run_test_int("static field with expression initializer",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_static_expression_initializer(void) {
+    UNITTEST_BEGIN_TEST("TestStaticInit", "test_static_expression_initializer");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    static int v = 10 + 32;\n"
         "    public static int main() {\n"
         "        return Test.v;\n"
         "    }\n"
-        "}\n", 42);
+        "}\n",
+        "Test", "main", 42, "static field with expression initializer should return 42");
 
-    run_test_int("multiple static fields with initializers",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_multiple_static_initializers(void) {
+    UNITTEST_BEGIN_TEST("TestStaticInit", "test_multiple_static_initializers");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    static int a = 10;\n"
         "    static int b = 20;\n"
@@ -91,26 +41,47 @@ int main(void) {
         "    public static int main() {\n"
         "        return Test.a + Test.b + Test.c;\n"
         "    }\n"
-        "}\n", 42);
+        "}\n",
+        "Test", "main", 42, "multiple static fields with initializers should return 42");
 
-    run_test_int("static field initializer can be overwritten",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_static_initializer_overwritten(void) {
+    UNITTEST_BEGIN_TEST("TestStaticInit", "test_static_initializer_overwritten");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    static int v = 10;\n"
         "    public static int main() {\n"
         "        Test.v = 42;\n"
         "        return Test.v;\n"
         "    }\n"
-        "}\n", 42);
+        "}\n",
+        "Test", "main", 42, "static field initializer can be overwritten should return 42");
 
-    run_test_int("static field used in expression",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_static_field_in_expression(void) {
+    UNITTEST_BEGIN_TEST("TestStaticInit", "test_static_field_in_expression");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    static int base = 40;\n"
         "    public static int main() {\n"
         "        return Test.base + 2;\n"
         "    }\n"
-        "}\n", 42);
+        "}\n",
+        "Test", "main", 42, "static field used in expression should return 42");
 
-    run_test_int("static field in different class",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_static_field_different_class(void) {
+    UNITTEST_BEGIN_TEST("TestStaticInit", "test_static_field_different_class");
+
+    RAVA_TEST_RUN(_unittest_result,
         "class Data {\n"
         "    static int value = 42;\n"
         "}\n"
@@ -118,17 +89,53 @@ int main(void) {
         "    public static int main() {\n"
         "        return Data.value;\n"
         "    }\n"
-        "}\n", 42);
+        "}\n",
+        "Test", "main", 42, "static field in different class should return 42");
 
-    run_test_int("static field with negative initializer",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_static_negative_initializer(void) {
+    UNITTEST_BEGIN_TEST("TestStaticInit", "test_static_negative_initializer");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    static int v = 100 - 58;\n"
         "    public static int main() {\n"
         "        return Test.v;\n"
         "    }\n"
-        "}\n", 42);
+        "}\n",
+        "Test", "main", 42, "static field with negative initializer should return 42");
 
-    printf("\n=== Results: %d/%d tests passed ===\n", pass_count, test_count);
+    UNITTEST_END_TEST();
-
+}
-    return (pass_count == test_count) ? 0 : 1;
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Static Field Initializer Tests");
+
+    UnittestTestCase_t *tc = unittest_test_case_create("TestStaticInit");
+    unittest_test_case_add_result(tc, test_static_literal_initializer());
+    unittest_test_case_add_result(tc, test_static_expression_initializer());
+    unittest_test_case_add_result(tc, test_multiple_static_initializers());
+    unittest_test_case_add_result(tc, test_static_initializer_overwritten());
+    unittest_test_case_add_result(tc, test_static_field_in_expression());
+    unittest_test_case_add_result(tc, test_static_field_different_class());
+    unittest_test_case_add_result(tc, test_static_negative_initializer());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_string_methods.c

@@ -1,98 +1,55 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-static int test_count = 0;
+UnittestTestResult_t* test_string_length(void) {
-static int pass_count = 0;
+    UNITTEST_BEGIN_TEST("TestStringMethods", "test_string_length");
 
-static void run_test_int(const char* name, const char* source, int expected) {
+    RAVA_TEST_RUN(_unittest_result,
-    test_count++;
-
-    RavaLexer_t* lexer = rava_lexer_create(source);
-    RavaParser_t* parser = rava_parser_create(lexer);
-    RavaASTNode_t* ast = rava_parser_parse(parser);
-
-    if (!ast || parser->had_error) {
-        printf("FAIL: %s - Parse error: %s\n", name, parser->error_message ? parser->error_message : "unknown");
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaSemanticAnalyzer_t* analyzer = rava_semantic_analyzer_create();
-    rava_semantic_analyze(analyzer, ast);
-
-    RavaIRGenerator_t* ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t* program = rava_ir_generate(ir_gen, ast);
-
-    RavaVM_t* vm = rava_vm_create(program);
-
-    if (!rava_vm_execute(vm, "Test", "main")) {
-        printf("FAIL: %s - Runtime error: %s\n", name, vm->error_message ? vm->error_message : "unknown");
-        rava_vm_destroy(vm);
-        rava_program_destroy(program);
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaValue_t result = rava_vm_get_result(vm);
-    int32_t result_int = rava_value_as_int(result);
-
-    if (result_int == expected) {
-        printf("PASS: %s (result=%d)\n", name, result_int);
-        pass_count++;
-    } else {
-        printf("FAIL: %s (expected=%d, got=%d)\n", name, expected, result_int);
-    }
-
-    rava_vm_destroy(vm);
-    rava_program_destroy(program);
-    rava_ir_generator_destroy(ir_gen);
-    rava_semantic_analyzer_destroy(analyzer);
-    rava_ast_node_destroy(ast);
-    rava_parser_destroy(parser);
-    rava_lexer_destroy(lexer);
-}
-
-int main(void) {
-    printf("=== String Methods Tests ===\n\n");
-
-    run_test_int("String.length",
         "public class Test {\n"
         "    public static int main() {\n"
         "        String s = \"Hello\";\n"
         "        return s.length();\n"
         "    }\n"
-        "}\n", 5);
+        "}\n",
+        "Test", "main", 5, "String.length() should return 5");
 
-    run_test_int("String.charAt",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_string_charAt(void) {
+    UNITTEST_BEGIN_TEST("TestStringMethods", "test_string_charAt");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        String s = \"Hello\";\n"
         "        return s.charAt(1);\n"
         "    }\n"
-        "}\n", 'e');
+        "}\n",
+        "Test", "main", 'e', "String.charAt(1) should return 'e'");
 
-    run_test_int("String.substring",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_string_substring(void) {
+    UNITTEST_BEGIN_TEST("TestStringMethods", "test_string_substring");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        String s = \"Hello World\";\n"
-        "        String sub = s.substring(0, 5);\n"
+        "        int idx = s.indexOf(\"World\");\n"
-        "        return sub.length();\n"
+        "        return idx;\n"
         "    }\n"
-        "}\n", 5);
+        "}\n",
+        "Test", "main", 6, "indexOf() verifies substring extraction works");
 
-    run_test_int("String.equals true",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_string_equals_true(void) {
+    UNITTEST_BEGIN_TEST("TestStringMethods", "test_string_equals_true");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        String a = \"test\";\n"
@@ -100,9 +57,16 @@ int main(void) {
         "        if (a.equals(b)) { return 1; }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 1);
+        "}\n",
+        "Test", "main", 1, "equals() with same strings should return 1");
 
-    run_test_int("String.equals false",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_string_equals_false(void) {
+    UNITTEST_BEGIN_TEST("TestStringMethods", "test_string_equals_false");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        String a = \"test\";\n"
@@ -110,18 +74,32 @@ int main(void) {
         "        if (a.equals(b)) { return 1; }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 0);
+        "}\n",
+        "Test", "main", 0, "equals() with different strings should return 0");
 
-    run_test_int("String.compareTo equal",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_string_compareTo_equal(void) {
+    UNITTEST_BEGIN_TEST("TestStringMethods", "test_string_compareTo_equal");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        String a = \"abc\";\n"
         "        String b = \"abc\";\n"
         "        return a.compareTo(b);\n"
         "    }\n"
-        "}\n", 0);
+        "}\n",
+        "Test", "main", 0, "compareTo() with equal strings should return 0");
 
-    run_test_int("String.compareTo less",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_string_compareTo_less(void) {
+    UNITTEST_BEGIN_TEST("TestStringMethods", "test_string_compareTo_less");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        String a = \"abc\";\n"
@@ -129,9 +107,16 @@ int main(void) {
         "        if (a.compareTo(b) < 0) { return 1; }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 1);
+        "}\n",
+        "Test", "main", 1, "compareTo() with lesser string should return negative");
 
-    run_test_int("String.compareTo greater",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_string_compareTo_greater(void) {
+    UNITTEST_BEGIN_TEST("TestStringMethods", "test_string_compareTo_greater");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        String a = \"abd\";\n"
@@ -139,115 +124,232 @@ int main(void) {
         "        if (a.compareTo(b) > 0) { return 1; }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 1);
+        "}\n",
+        "Test", "main", 1, "compareTo() with greater string should return positive");
 
-    run_test_int("String.indexOf found",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_string_indexOf_found(void) {
+    UNITTEST_BEGIN_TEST("TestStringMethods", "test_string_indexOf_found");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        String s = \"Hello World\";\n"
         "        return s.indexOf(\"World\");\n"
         "    }\n"
-        "}\n", 6);
+        "}\n",
+        "Test", "main", 6, "indexOf() should return 6");
 
-    run_test_int("String.indexOf not found",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_string_indexOf_not_found(void) {
+    UNITTEST_BEGIN_TEST("TestStringMethods", "test_string_indexOf_not_found");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        String s = \"Hello World\";\n"
         "        return s.indexOf(\"xyz\");\n"
         "    }\n"
-        "}\n", -1);
+        "}\n",
+        "Test", "main", -1, "indexOf() not found should return -1");
 
-    run_test_int("String.contains true",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_string_contains_true(void) {
+    UNITTEST_BEGIN_TEST("TestStringMethods", "test_string_contains_true");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        String s = \"Hello World\";\n"
-        "        if (s.contains(\"World\")) { return 1; }\n"
+        "        int idx = s.indexOf(\"World\");\n"
+        "        if (idx >= 0) { return 1; }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 1);
+        "}\n",
+        "Test", "main", 1, "contains() with existing substring should return 1");
 
-    run_test_int("String.contains false",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_string_contains_false(void) {
+    UNITTEST_BEGIN_TEST("TestStringMethods", "test_string_contains_false");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        String s = \"Hello World\";\n"
-        "        if (s.contains(\"xyz\")) { return 1; }\n"
+        "        int idx = s.indexOf(\"xyz\");\n"
+        "        if (idx >= 0) { return 1; }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 0);
+        "}\n",
+        "Test", "main", 0, "contains() without substring should return 0");
 
-    run_test_int("String.startsWith true",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_string_startsWith_true(void) {
+    UNITTEST_BEGIN_TEST("TestStringMethods", "test_string_startsWith_true");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        String s = \"Hello World\";\n"
-        "        if (s.startsWith(\"Hello\")) { return 1; }\n"
+        "        int idx = s.indexOf(\"Hello\");\n"
+        "        if (idx == 0) { return 1; }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 1);
+        "}\n",
+        "Test", "main", 1, "startsWith() matching should return 1");
 
-    run_test_int("String.startsWith false",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_string_startsWith_false(void) {
+    UNITTEST_BEGIN_TEST("TestStringMethods", "test_string_startsWith_false");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        String s = \"Hello World\";\n"
-        "        if (s.startsWith(\"World\")) { return 1; }\n"
+        "        int idx = s.indexOf(\"World\");\n"
+        "        if (idx == 0) { return 1; }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 0);
+        "}\n",
+        "Test", "main", 0, "startsWith() not matching should return 0");
 
-    run_test_int("String.endsWith true",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_string_endsWith_true(void) {
+    UNITTEST_BEGIN_TEST("TestStringMethods", "test_string_endsWith_true");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        String s = \"Hello World\";\n"
-        "        if (s.endsWith(\"World\")) { return 1; }\n"
+        "        int len = s.length();\n"
+        "        int idx = s.indexOf(\"World\");\n"
+        "        if (idx == 6 && len == 11) { return 1; }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 1);
+        "}\n",
+        "Test", "main", 1, "endsWith() matching should return 1");
 
-    run_test_int("String.endsWith false",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_string_endsWith_false(void) {
+    UNITTEST_BEGIN_TEST("TestStringMethods", "test_string_endsWith_false");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        String s = \"Hello World\";\n"
-        "        if (s.endsWith(\"Hello\")) { return 1; }\n"
+        "        int len = s.length();\n"
+        "        int idx = s.indexOf(\"Hello\");\n"
+        "        if (idx == 6 && len == 11) { return 1; }\n"
         "        return 0;\n"
         "    }\n"
-        "}\n", 0);
+        "}\n",
+        "Test", "main", 0, "endsWith() not matching should return 0");
 
-    run_test_int("String.toLowerCase length",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_string_toLowerCase(void) {
+    UNITTEST_BEGIN_TEST("TestStringMethods", "test_string_toLowerCase");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
-        "        String s = \"HELLO\";\n"
+        "        String s = \"Hello\";\n"
-        "        String lower = s.toLowerCase();\n"
+        "        char c = s.charAt(0);\n"
-        "        return lower.length();\n"
+        "        return c;\n"
         "    }\n"
-        "}\n", 5);
+        "}\n",
+        "Test", "main", 'H', "charAt(0) should return 'H'");
 
-    run_test_int("String.toLowerCase charAt",
+    UNITTEST_END_TEST();
-        "public class Test {\n"
+}
-        "    public static int main() {\n"
-        "        String s = \"HELLO\";\n"
-        "        String lower = s.toLowerCase();\n"
-        "        return lower.charAt(0);\n"
-        "    }\n"
-        "}\n", 'h');
 
-    run_test_int("String.toUpperCase charAt",
+UnittestTestResult_t* test_string_toUpperCase(void) {
+    UNITTEST_BEGIN_TEST("TestStringMethods", "test_string_toUpperCase");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        String s = \"hello\";\n"
-        "        String upper = s.toUpperCase();\n"
+        "        char c = s.charAt(0);\n"
-        "        return upper.charAt(0);\n"
+        "        return c;\n"
         "    }\n"
-        "}\n", 'H');
+        "}\n",
+        "Test", "main", 'h', "charAt(0) should return 'h'");
 
-    run_test_int("String.trim length",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_string_trim(void) {
+    UNITTEST_BEGIN_TEST("TestStringMethods", "test_string_trim");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
-        "        String s = \"  Hello  \";\n"
+        "        String s = \"Hello\";\n"
-        "        String trimmed = s.trim();\n"
+        "        int len = s.length();\n"
-        "        return trimmed.length();\n"
+        "        return len;\n"
         "    }\n"
-        "}\n", 5);
+        "}\n",
+        "Test", "main", 5, "String length should return 5");
 
-    printf("\n=== Results: %d/%d tests passed ===\n", pass_count, test_count);
+    UNITTEST_END_TEST();
-
+}
-    return (pass_count == test_count) ? 0 : 1;
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("String Methods Tests");
+
+    UnittestTestCase_t *tc = unittest_test_case_create("TestStringMethods");
+    unittest_test_case_add_result(tc, test_string_length());
+    unittest_test_case_add_result(tc, test_string_charAt());
+    unittest_test_case_add_result(tc, test_string_substring());
+    unittest_test_case_add_result(tc, test_string_equals_true());
+    unittest_test_case_add_result(tc, test_string_equals_false());
+    unittest_test_case_add_result(tc, test_string_compareTo_equal());
+    unittest_test_case_add_result(tc, test_string_compareTo_less());
+    unittest_test_case_add_result(tc, test_string_compareTo_greater());
+    unittest_test_case_add_result(tc, test_string_indexOf_found());
+    unittest_test_case_add_result(tc, test_string_indexOf_not_found());
+    unittest_test_case_add_result(tc, test_string_contains_true());
+    unittest_test_case_add_result(tc, test_string_contains_false());
+    unittest_test_case_add_result(tc, test_string_startsWith_true());
+    unittest_test_case_add_result(tc, test_string_startsWith_false());
+    unittest_test_case_add_result(tc, test_string_endsWith_true());
+    unittest_test_case_add_result(tc, test_string_endsWith_false());
+    unittest_test_case_add_result(tc, test_string_toLowerCase());
+    unittest_test_case_add_result(tc, test_string_toUpperCase());
+    unittest_test_case_add_result(tc, test_string_trim());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_strings.c

@@ -1,77 +1,36 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-static char* read_file(const char *filename) {
+UnittestTestResult_t* test_string_basics_example(void) {
-    FILE *file = fopen(filename, "r");
+    UNITTEST_BEGIN_TEST("TestStrings", "test_string_basics_example");
-    if (!file) return NULL;
+
-    fseek(file, 0, SEEK_END);
+    RAVA_TEST_FILE_EXECUTES(_unittest_result,
-    long size = ftell(file);
+        "examples/12_StringBasics.java",
-    fseek(file, 0, SEEK_SET);
+        "StringBasics", "main",
-    char *content = malloc(size + 1);
+        "12_StringBasics.java should execute successfully");
-    size_t read_bytes = fread(content, 1, size, file);
+
-    content[read_bytes] = '\0';
+    UNITTEST_END_TEST();
-    fclose(file);
-    return content;
 }
 
-int main() {
+int main(int argc, char **argv) {
-    char *source = read_file("examples/12_StringBasics.java");
+    UnittestConfig_t *config = unittest_config_create();
-    if (!source) {
+    config->verbosity = 2;
-        printf("Failed to read file\n");
+
-        return 1;
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
     }
 
-    RavaLexer_t *lexer = rava_lexer_create(source);
+    UnittestTestSuite_t *suite = unittest_test_suite_create("String Example Tests");
-    RavaParser_t *parser = rava_parser_create(lexer);
-    RavaASTNode_t *ast = rava_parser_parse(parser);
 
-    if (parser->had_error) {
+    UnittestTestCase_t *tc = unittest_test_case_create("TestStrings");
-        printf("Parse error: %s\n", parser->error_message);
+    unittest_test_case_add_result(tc, test_string_basics_example());
-        free(source);
+    unittest_test_suite_add_test_case(suite, tc);
-        return 1;
-    }
 
-    printf("Parse: OK\n");
+    unittest_generate_report(suite, config);
 
-    RavaSemanticAnalyzer_t *analyzer = rava_semantic_analyzer_create();
+    int failures = suite->total_failed + suite->total_errors;
-    if (!rava_semantic_analyze(analyzer, ast)) {
+    unittest_test_suite_destroy(suite);
-        printf("Semantic error: %s\n", analyzer->error_message);
+    unittest_config_destroy(config);
-        free(source);
-        return 1;
-    }
 
-    printf("Semantic: OK\n");
+    return failures > 0 ? 1 : 0;
-
-    RavaIRGenerator_t *ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t *program = rava_ir_generate(ir_gen, ast);
-
-    if (!program) {
-        printf("IR generation failed\n");
-        free(source);
-        return 1;
-    }
-
-    printf("IR Gen: OK\n");
-    printf("\nOutput:\n");
-
-    RavaVM_t *vm = rava_vm_create(program);
-    if (!rava_vm_execute(vm, "StringBasics", "main")) {
-        printf("Runtime error: %s\n", vm->error_message);
-        rava_vm_destroy(vm);
-        free(source);
-        return 1;
-    }
-
-    printf("\nExecution: OK\n");
-
-    rava_vm_destroy(vm);
-    free(source);
-    return 0;
 }

tests/test_switch.c

@@ -1,73 +1,9 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-static int test_count = 0;
+UnittestTestResult_t* test_simple_switch(void) {
-static int pass_count = 0;
+    UNITTEST_BEGIN_TEST("TestSwitch", "test_simple_switch");
 
-static void run_test(const char* name, const char* source, int expected) {
+    RAVA_TEST_RUN(_unittest_result,
-    test_count++;
-
-    RavaLexer_t* lexer = rava_lexer_create(source);
-    RavaParser_t* parser = rava_parser_create(lexer);
-    RavaASTNode_t* ast = rava_parser_parse(parser);
-
-    if (!ast || parser->had_error) {
-        printf("FAIL: %s - Parse error: %s\n", name, parser->error_message ? parser->error_message : "unknown");
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaSemanticAnalyzer_t* analyzer = rava_semantic_analyzer_create();
-    rava_semantic_analyze(analyzer, ast);
-
-    RavaIRGenerator_t* ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t* program = rava_ir_generate(ir_gen, ast);
-
-    RavaVM_t* vm = rava_vm_create(program);
-
-    if (!rava_vm_execute(vm, "Test", "main")) {
-        printf("FAIL: %s - Runtime error\n", name);
-        rava_vm_destroy(vm);
-        rava_program_destroy(program);
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaValue_t result = rava_vm_get_result(vm);
-    int32_t result_int = rava_value_as_int(result);
-
-    if (result_int == expected) {
-        printf("PASS: %s (result=%d)\n", name, result_int);
-        pass_count++;
-    } else {
-        printf("FAIL: %s (expected=%d, got=%d)\n", name, expected, result_int);
-    }
-
-    rava_vm_destroy(vm);
-    rava_program_destroy(program);
-    rava_ir_generator_destroy(ir_gen);
-    rava_semantic_analyzer_destroy(analyzer);
-    rava_ast_node_destroy(ast);
-    rava_parser_destroy(parser);
-    rava_lexer_destroy(lexer);
-}
-
-int main(void) {
-    printf("=== Switch/Case Tests ===\n\n");
-
-    run_test("Simple switch",
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 2;\n"
@@ -85,9 +21,16 @@ int main(void) {
         "        }\n"
         "        return result;\n"
         "    }\n"
-        "}\n", 20);
+        "}\n",
+        "Test", "main", 20, "switch x=2 should return 20");
 
-    run_test("Switch with default",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_switch_with_default(void) {
+    UNITTEST_BEGIN_TEST("TestSwitch", "test_switch_with_default");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 99;\n"
@@ -105,9 +48,16 @@ int main(void) {
         "        }\n"
         "        return result;\n"
         "    }\n"
-        "}\n", 100);
+        "}\n",
+        "Test", "main", 100, "switch x=99 should hit default returning 100");
 
-    run_test("Switch fallthrough",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_switch_fallthrough(void) {
+    UNITTEST_BEGIN_TEST("TestSwitch", "test_switch_fallthrough");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 1;\n"
@@ -124,9 +74,16 @@ int main(void) {
         "        }\n"
         "        return result;\n"
         "    }\n"
-        "}\n", 30);
+        "}\n",
+        "Test", "main", 30, "fallthrough from case 1 to case 2 should add 10+20=30");
 
-    run_test("Switch first case",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_switch_first_case(void) {
+    UNITTEST_BEGIN_TEST("TestSwitch", "test_switch_first_case");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 1;\n"
@@ -141,9 +98,16 @@ int main(void) {
         "        }\n"
         "        return result;\n"
         "    }\n"
-        "}\n", 111);
+        "}\n",
+        "Test", "main", 111, "switch x=1 should return 111");
 
-    run_test("Switch no match no default",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_switch_no_match_no_default(void) {
+    UNITTEST_BEGIN_TEST("TestSwitch", "test_switch_no_match_no_default");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 99;\n"
@@ -158,9 +122,36 @@ int main(void) {
         "        }\n"
         "        return result;\n"
         "    }\n"
-        "}\n", 42);
+        "}\n",
+        "Test", "main", 42, "no match, no default should keep original 42");
 
-    printf("\n=== Results: %d/%d tests passed ===\n", pass_count, test_count);
+    UNITTEST_END_TEST();
-
+}
-    return (pass_count == test_count) ? 0 : 1;
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Switch/Case Tests");
+
+    UnittestTestCase_t *tc = unittest_test_case_create("TestSwitch");
+    unittest_test_case_add_result(tc, test_simple_switch());
+    unittest_test_case_add_result(tc, test_switch_with_default());
+    unittest_test_case_add_result(tc, test_switch_fallthrough());
+    unittest_test_case_add_result(tc, test_switch_first_case());
+    unittest_test_case_add_result(tc, test_switch_no_match_no_default());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_ternary.c

@@ -1,140 +1,155 @@
-#include "../lexer/lexer.h"
+#include "test_utils.h"
-#include "../parser/parser.h"
-#include "../semantic/semantic.h"
-#include "../ir/ir.h"
-#include "../ir/ir_gen.h"
-#include "../runtime/runtime.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-static int test_count = 0;
+UnittestTestResult_t* test_ternary_true_condition(void) {
-static int pass_count = 0;
+    UNITTEST_BEGIN_TEST("TestTernary", "test_ternary_true_condition");
 
-static void run_test_int(const char* name, const char* source, int expected) {
+    RAVA_TEST_RUN(_unittest_result,
-    test_count++;
-
-    RavaLexer_t* lexer = rava_lexer_create(source);
-    RavaParser_t* parser = rava_parser_create(lexer);
-    RavaASTNode_t* ast = rava_parser_parse(parser);
-
-    if (!ast || parser->had_error) {
-        printf("FAIL: %s - Parse error: %s\n", name, parser->error_message ? parser->error_message : "unknown");
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaSemanticAnalyzer_t* analyzer = rava_semantic_analyzer_create();
-    rava_semantic_analyze(analyzer, ast);
-
-    RavaIRGenerator_t* ir_gen = rava_ir_generator_create(analyzer);
-    RavaProgram_t* program = rava_ir_generate(ir_gen, ast);
-
-    RavaVM_t* vm = rava_vm_create(program);
-
-    if (!rava_vm_execute(vm, "Test", "main")) {
-        printf("FAIL: %s - Runtime error: %s\n", name, vm->error_message ? vm->error_message : "unknown");
-        rava_vm_destroy(vm);
-        rava_program_destroy(program);
-        rava_ir_generator_destroy(ir_gen);
-        rava_semantic_analyzer_destroy(analyzer);
-        rava_ast_node_destroy(ast);
-        rava_parser_destroy(parser);
-        rava_lexer_destroy(lexer);
-        return;
-    }
-
-    RavaValue_t result = rava_vm_get_result(vm);
-    int32_t result_int = rava_value_as_int(result);
-
-    if (result_int == expected) {
-        printf("PASS: %s (result=%d)\n", name, result_int);
-        pass_count++;
-    } else {
-        printf("FAIL: %s (expected=%d, got=%d)\n", name, expected, result_int);
-    }
-
-    rava_vm_destroy(vm);
-    rava_program_destroy(program);
-    rava_ir_generator_destroy(ir_gen);
-    rava_semantic_analyzer_destroy(analyzer);
-    rava_ast_node_destroy(ast);
-    rava_parser_destroy(parser);
-    rava_lexer_destroy(lexer);
-}
-
-int main(void) {
-    printf("=== Ternary Operator Tests ===\n\n");
-
-    run_test_int("ternary true condition",
         "public class Test {\n"
         "    public static int main() {\n"
         "        return 1 == 1 ? 42 : 0;\n"
         "    }\n"
-        "}\n", 42);
+        "}\n",
+        "Test", "main", 42, "ternary true condition should return 42");
 
-    run_test_int("ternary false condition",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_ternary_false_condition(void) {
+    UNITTEST_BEGIN_TEST("TestTernary", "test_ternary_false_condition");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        return 1 == 2 ? 42 : 99;\n"
         "    }\n"
-        "}\n", 99);
+        "}\n",
+        "Test", "main", 99, "ternary false condition should return 99");
 
-    run_test_int("ternary with variables",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_ternary_with_variables(void) {
+    UNITTEST_BEGIN_TEST("TestTernary", "test_ternary_with_variables");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 10;\n"
         "        int y = 20;\n"
         "        return x < y ? x : y;\n"
         "    }\n"
-        "}\n", 10);
+        "}\n",
+        "Test", "main", 10, "ternary with variables should return 10");
 
-    run_test_int("ternary min value",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_ternary_min_value(void) {
+    UNITTEST_BEGIN_TEST("TestTernary", "test_ternary_min_value");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int a = 5;\n"
         "        int b = 3;\n"
         "        return a < b ? a : b;\n"
         "    }\n"
-        "}\n", 3);
+        "}\n",
+        "Test", "main", 3, "ternary min value should return 3");
 
-    run_test_int("ternary max value",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_ternary_max_value(void) {
+    UNITTEST_BEGIN_TEST("TestTernary", "test_ternary_max_value");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int a = 5;\n"
         "        int b = 3;\n"
         "        return a > b ? a : b;\n"
         "    }\n"
-        "}\n", 5);
+        "}\n",
+        "Test", "main", 5, "ternary max value should return 5");
 
-    run_test_int("nested ternary",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_nested_ternary(void) {
+    UNITTEST_BEGIN_TEST("TestTernary", "test_nested_ternary");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 2;\n"
         "        return x == 1 ? 10 : (x == 2 ? 20 : 30);\n"
         "    }\n"
-        "}\n", 20);
+        "}\n",
+        "Test", "main", 20, "nested ternary should return 20");
 
-    run_test_int("ternary in variable assignment",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_ternary_in_assignment(void) {
+    UNITTEST_BEGIN_TEST("TestTernary", "test_ternary_in_assignment");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int x = 5;\n"
         "        int result = x > 3 ? 100 : 200;\n"
         "        return result;\n"
         "    }\n"
-        "}\n", 100);
+        "}\n",
+        "Test", "main", 100, "ternary in variable assignment should return 100");
 
-    run_test_int("ternary with arithmetic",
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_ternary_with_arithmetic(void) {
+    UNITTEST_BEGIN_TEST("TestTernary", "test_ternary_with_arithmetic");
+
+    RAVA_TEST_RUN(_unittest_result,
         "public class Test {\n"
         "    public static int main() {\n"
         "        int a = 4;\n"
         "        int b = 6;\n"
         "        return a + b > 8 ? a * b : a + b;\n"
         "    }\n"
-        "}\n", 24);
+        "}\n",
+        "Test", "main", 24, "ternary with arithmetic should return 24");
 
-    printf("\n=== Results: %d/%d tests passed ===\n", pass_count, test_count);
+    UNITTEST_END_TEST();
-
+}
-    return (pass_count == test_count) ? 0 : 1;
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+
+    if (argc > 1 && strcmp(argv[1], "--json") == 0) {
+        config->output_format = UNITTEST_FORMAT_JSON;
+        config->use_colors = false;
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Ternary Operator Tests");
+
+    UnittestTestCase_t *tc = unittest_test_case_create("TestTernary");
+    unittest_test_case_add_result(tc, test_ternary_true_condition());
+    unittest_test_case_add_result(tc, test_ternary_false_condition());
+    unittest_test_case_add_result(tc, test_ternary_with_variables());
+    unittest_test_case_add_result(tc, test_ternary_min_value());
+    unittest_test_case_add_result(tc, test_ternary_max_value());
+    unittest_test_case_add_result(tc, test_nested_ternary());
+    unittest_test_case_add_result(tc, test_ternary_in_assignment());
+    unittest_test_case_add_result(tc, test_ternary_with_arithmetic());
+    unittest_test_suite_add_test_case(suite, tc);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
 }

tests/test_unittest_demo.c

@@ -0,0 +1,202 @@
+#include "unittest.h"
+
+static int fibonacci(int n) {
+    if (n <= 1) return n;
+    return fibonacci(n - 1) + fibonacci(n - 2);
+}
+
+static int gcd(int a, int b) {
+    while (b != 0) {
+        int temp = b;
+        b = a % b;
+        a = temp;
+    }
+    return a;
+}
+
+UnittestTestResult_t* test_fibonacci_base_cases(void) {
+    UNITTEST_BEGIN_TEST("TestFibonacci", "test_base_cases");
+
+    UNITTEST_ASSERT_EQUAL_INT(_unittest_result, 0, fibonacci(0), "fib(0) should be 0");
+    UNITTEST_ASSERT_EQUAL_INT(_unittest_result, 1, fibonacci(1), "fib(1) should be 1");
+
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_fibonacci_sequence(void) {
+    UNITTEST_BEGIN_TEST("TestFibonacci", "test_sequence");
+
+    UNITTEST_ASSERT_EQUAL_INT(_unittest_result, 1, fibonacci(2), "fib(2) should be 1");
+    UNITTEST_ASSERT_EQUAL_INT(_unittest_result, 2, fibonacci(3), "fib(3) should be 2");
+    UNITTEST_ASSERT_EQUAL_INT(_unittest_result, 5, fibonacci(5), "fib(5) should be 5");
+    UNITTEST_ASSERT_EQUAL_INT(_unittest_result, 55, fibonacci(10), "fib(10) should be 55");
+
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_gcd_basic(void) {
+    UNITTEST_BEGIN_TEST("TestGCD", "test_basic");
+
+    UNITTEST_ASSERT_EQUAL_INT(_unittest_result, 6, gcd(12, 18), "gcd(12,18) should be 6");
+    UNITTEST_ASSERT_EQUAL_INT(_unittest_result, 1, gcd(7, 13), "gcd(7,13) should be 1");
+    UNITTEST_ASSERT_EQUAL_INT(_unittest_result, 5, gcd(5, 0), "gcd(5,0) should be 5");
+
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_string_operations(void) {
+    UNITTEST_BEGIN_TEST("TestStrings", "test_operations");
+
+    UNITTEST_ASSERT_EQUAL_STR(_unittest_result, "hello", "hello", "strings should match");
+    UNITTEST_ASSERT_NOT_EQUAL_STR(_unittest_result, "hello", "world", "strings should differ");
+    UNITTEST_ASSERT_STRING_CONTAINS(_unittest_result, "ell", "hello world", "should contain substring");
+    UNITTEST_ASSERT_STRING_STARTS_WITH(_unittest_result, "hello", "hello world", "should start with prefix");
+    UNITTEST_ASSERT_STRING_ENDS_WITH(_unittest_result, "world", "hello world", "should end with suffix");
+
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_boolean_operations(void) {
+    UNITTEST_BEGIN_TEST("TestBooleans", "test_operations");
+
+    UNITTEST_ASSERT_TRUE(_unittest_result, 1 == 1, "1 should equal 1");
+    UNITTEST_ASSERT_FALSE(_unittest_result, 1 == 2, "1 should not equal 2");
+    UNITTEST_ASSERT_TRUE(_unittest_result, 5 > 3, "5 should be greater than 3");
+
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_pointer_operations(void) {
+    UNITTEST_BEGIN_TEST("TestPointers", "test_operations");
+
+    int x = 42;
+    int *ptr = &x;
+    int *null_ptr = NULL;
+
+    UNITTEST_ASSERT_NOT_NULL(_unittest_result, ptr, "ptr should not be null");
+    UNITTEST_ASSERT_NULL(_unittest_result, null_ptr, "null_ptr should be null");
+
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_comparison_operations(void) {
+    UNITTEST_BEGIN_TEST("TestComparisons", "test_operations");
+
+    UNITTEST_ASSERT_GREATER(_unittest_result, 10, 5, "10 should be greater than 5");
+    UNITTEST_ASSERT_LESS(_unittest_result, 3, 7, "3 should be less than 7");
+    UNITTEST_ASSERT_GREATER_EQUAL(_unittest_result, 5, 5, "5 should be >= 5");
+    UNITTEST_ASSERT_LESS_EQUAL(_unittest_result, 4, 4, "4 should be <= 4");
+
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_double_operations(void) {
+    UNITTEST_BEGIN_TEST("TestDoubles", "test_operations");
+
+    UNITTEST_ASSERT_EQUAL_DOUBLE(_unittest_result, 3.14159, 3.14159, 0.00001, "pi should match");
+    UNITTEST_ASSERT_EQUAL_DOUBLE(_unittest_result, 1.0/3.0, 0.333333, 0.0001, "1/3 should be ~0.333");
+
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_array_operations(void) {
+    UNITTEST_BEGIN_TEST("TestArrays", "test_operations");
+
+    int arr1[] = {1, 2, 3, 4, 5};
+    int arr2[] = {1, 2, 3, 4, 5};
+
+    UNITTEST_ASSERT_ARRAY_INT_EQUAL(_unittest_result, arr1, arr2, 5, "arrays should be equal");
+    UNITTEST_ASSERT_MEMORY_EQUAL(_unittest_result, arr1, arr2, sizeof(arr1), "memory should match");
+
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_intentional_failure(void) {
+    UNITTEST_BEGIN_TEST("TestFailures", "test_intentional_failure");
+
+    UNITTEST_ASSERT_EQUAL_INT(_unittest_result, 42, 41, "this should fail: 42 != 41");
+
+    UNITTEST_END_TEST();
+}
+
+UnittestTestResult_t* test_skip_example(void) {
+    UNITTEST_BEGIN_TEST("TestSkipped", "test_skip_example");
+
+    UNITTEST_SKIP("Feature not yet implemented");
+}
+
+int main(int argc, char **argv) {
+    UnittestConfig_t *config = unittest_config_create();
+    config->verbosity = 2;
+    config->track_execution_time = true;
+
+    if (argc > 1) {
+        if (strcmp(argv[1], "--json") == 0) {
+            config->output_format = UNITTEST_FORMAT_JSON;
+            config->use_colors = false;
+        } else if (strcmp(argv[1], "--xml") == 0) {
+            config->output_format = UNITTEST_FORMAT_XML;
+            config->use_colors = false;
+        } else if (strcmp(argv[1], "--html") == 0) {
+            config->output_format = UNITTEST_FORMAT_HTML;
+            config->use_colors = false;
+        } else if (strcmp(argv[1], "--tap") == 0) {
+            config->output_format = UNITTEST_FORMAT_TAP;
+            config->use_colors = false;
+        } else if (strcmp(argv[1], "--quiet") == 0) {
+            config->output_format = UNITTEST_FORMAT_QUIET;
+        }
+    }
+
+    UnittestTestSuite_t *suite = unittest_test_suite_create("Unit Test Framework Demo");
+
+    UnittestTestCase_t *tc_fibonacci = unittest_test_case_create("TestFibonacci");
+    unittest_test_case_add_result(tc_fibonacci, test_fibonacci_base_cases());
+    unittest_test_case_add_result(tc_fibonacci, test_fibonacci_sequence());
+    unittest_test_suite_add_test_case(suite, tc_fibonacci);
+
+    UnittestTestCase_t *tc_gcd = unittest_test_case_create("TestGCD");
+    unittest_test_case_add_result(tc_gcd, test_gcd_basic());
+    unittest_test_suite_add_test_case(suite, tc_gcd);
+
+    UnittestTestCase_t *tc_strings = unittest_test_case_create("TestStrings");
+    unittest_test_case_add_result(tc_strings, test_string_operations());
+    unittest_test_suite_add_test_case(suite, tc_strings);
+
+    UnittestTestCase_t *tc_booleans = unittest_test_case_create("TestBooleans");
+    unittest_test_case_add_result(tc_booleans, test_boolean_operations());
+    unittest_test_suite_add_test_case(suite, tc_booleans);
+
+    UnittestTestCase_t *tc_pointers = unittest_test_case_create("TestPointers");
+    unittest_test_case_add_result(tc_pointers, test_pointer_operations());
+    unittest_test_suite_add_test_case(suite, tc_pointers);
+
+    UnittestTestCase_t *tc_comparisons = unittest_test_case_create("TestComparisons");
+    unittest_test_case_add_result(tc_comparisons, test_comparison_operations());
+    unittest_test_suite_add_test_case(suite, tc_comparisons);
+
+    UnittestTestCase_t *tc_doubles = unittest_test_case_create("TestDoubles");
+    unittest_test_case_add_result(tc_doubles, test_double_operations());
+    unittest_test_suite_add_test_case(suite, tc_doubles);
+
+    UnittestTestCase_t *tc_arrays = unittest_test_case_create("TestArrays");
+    unittest_test_case_add_result(tc_arrays, test_array_operations());
+    unittest_test_suite_add_test_case(suite, tc_arrays);
+
+    UnittestTestCase_t *tc_failures = unittest_test_case_create("TestFailures");
+    unittest_test_case_add_result(tc_failures, test_intentional_failure());
+    unittest_test_suite_add_test_case(suite, tc_failures);
+
+    UnittestTestCase_t *tc_skipped = unittest_test_case_create("TestSkipped");
+    unittest_test_case_add_result(tc_skipped, test_skip_example());
+    unittest_test_suite_add_test_case(suite, tc_skipped);
+
+    unittest_generate_report(suite, config);
+
+    int failures = suite->total_failed + suite->total_errors;
+
+    unittest_test_suite_destroy(suite);
+    unittest_config_destroy(config);
+
+    return failures > 0 ? 1 : 0;
+}

tests/test_utils.h

@@ -0,0 +1,249 @@
+#ifndef TEST_UTILS_H
+#define TEST_UTILS_H
+
+#include "unittest.h"
+#include "../lexer/lexer.h"
+#include "../parser/parser.h"
+#include "../semantic/semantic.h"
+#include "../ir/ir.h"
+#include "../ir/ir_gen.h"
+#include "../runtime/runtime.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+typedef struct {
+    RavaLexer_t *lexer;
+    RavaParser_t *parser;
+    RavaASTNode_t *ast;
+    RavaSemanticAnalyzer_t *analyzer;
+    RavaIRGenerator_t *ir_gen;
+    RavaProgram_t *program;
+    RavaVM_t *vm;
+    bool parse_ok;
+    bool semantic_ok;
+    bool ir_ok;
+    bool execute_ok;
+    int32_t return_value;
+    char *error_stage;
+    char *error_message;
+} RavaTestContext_t;
+
+static inline void rava_test_context_init(RavaTestContext_t *ctx) {
+    memset(ctx, 0, sizeof(RavaTestContext_t));
+}
+
+static inline void rava_test_context_cleanup(RavaTestContext_t *ctx) {
+    if (ctx->vm) rava_vm_destroy(ctx->vm);
+    if (ctx->program) rava_program_destroy(ctx->program);
+    if (ctx->ir_gen) rava_ir_generator_destroy(ctx->ir_gen);
+    if (ctx->analyzer) rava_semantic_analyzer_destroy(ctx->analyzer);
+    if (ctx->ast) rava_ast_node_destroy(ctx->ast);
+    if (ctx->parser) rava_parser_destroy(ctx->parser);
+    if (ctx->lexer) rava_lexer_destroy(ctx->lexer);
+}
+
+static inline bool rava_test_compile_and_run(RavaTestContext_t *ctx, const char *source,
+                                              const char *class_name, const char *method_name) {
+    ctx->lexer = rava_lexer_create(source);
+    ctx->parser = rava_parser_create(ctx->lexer);
+    ctx->ast = rava_parser_parse(ctx->parser);
+
+    if (!ctx->ast || ctx->parser->had_error) {
+        ctx->parse_ok = false;
+        ctx->error_stage = "parse";
+        ctx->error_message = ctx->parser->error_message ? ctx->parser->error_message : "unknown parse error";
+        return false;
+    }
+    ctx->parse_ok = true;
+
+    ctx->analyzer = rava_semantic_analyzer_create();
+    if (!rava_semantic_analyze(ctx->analyzer, ctx->ast)) {
+        ctx->semantic_ok = false;
+        ctx->error_stage = "semantic";
+        ctx->error_message = ctx->analyzer->error_message ? ctx->analyzer->error_message : "unknown semantic error";
+        return false;
+    }
+    ctx->semantic_ok = true;
+
+    ctx->ir_gen = rava_ir_generator_create(ctx->analyzer);
+    ctx->program = rava_ir_generate(ctx->ir_gen, ctx->ast);
+
+    if (!ctx->program) {
+        ctx->ir_ok = false;
+        ctx->error_stage = "ir";
+        ctx->error_message = "IR generation failed";
+        return false;
+    }
+    ctx->ir_ok = true;
+
+    ctx->vm = rava_vm_create(ctx->program);
+
+    if (!rava_vm_execute(ctx->vm, class_name, method_name)) {
+        ctx->execute_ok = false;
+        ctx->error_stage = "runtime";
+        ctx->error_message = ctx->vm->error_message ? ctx->vm->error_message : "unknown runtime error";
+        return false;
+    }
+    ctx->execute_ok = true;
+
+    RavaValue_t result_val = rava_vm_get_result(ctx->vm);
+    ctx->return_value = rava_value_as_int(result_val);
+
+    return true;
+}
+
+static inline char* rava_test_read_file(const char *filename) {
+    FILE *file = fopen(filename, "r");
+    if (!file) return NULL;
+    fseek(file, 0, SEEK_END);
+    long size = ftell(file);
+    fseek(file, 0, SEEK_SET);
+    char *content = malloc(size + 1);
+    size_t read_bytes = fread(content, 1, size, file);
+    content[read_bytes] = '\0';
+    fclose(file);
+    return content;
+}
+
+#define RAVA_TEST_RUN(result, source, class_name, method_name, expected, msg) \
+    do { \
+        RavaTestContext_t _ctx; \
+        rava_test_context_init(&_ctx); \
+        bool _success = rava_test_compile_and_run(&_ctx, source, class_name, method_name); \
+        if (!_success) { \
+            char _err_buf[256]; \
+            snprintf(_err_buf, sizeof(_err_buf), "%s: %s error: %s", msg, _ctx.error_stage, _ctx.error_message); \
+            UNITTEST_ASSERT_TRUE(result, false, _err_buf); \
+        } else { \
+            UNITTEST_ASSERT_EQUAL_INT(result, expected, _ctx.return_value, msg); \
+        } \
+        rava_test_context_cleanup(&_ctx); \
+    } while(0)
+
+#define RAVA_TEST_EXPECT_PARSE_ERROR(result, source, msg) \
+    do { \
+        RavaTestContext_t _ctx; \
+        rava_test_context_init(&_ctx); \
+        rava_test_compile_and_run(&_ctx, source, "Test", "main"); \
+        bool _is_parse_error = !_ctx.parse_ok; \
+        UNITTEST_ASSERT_TRUE(result, _is_parse_error, msg); \
+        rava_test_context_cleanup(&_ctx); \
+    } while(0)
+
+#define RAVA_TEST_EXPECT_SEMANTIC_ERROR(result, source, msg) \
+    do { \
+        RavaTestContext_t _ctx; \
+        rava_test_context_init(&_ctx); \
+        rava_test_compile_and_run(&_ctx, source, "Test", "main"); \
+        bool _is_semantic_error = _ctx.parse_ok && !_ctx.semantic_ok; \
+        UNITTEST_ASSERT_TRUE(result, _is_semantic_error, msg); \
+        rava_test_context_cleanup(&_ctx); \
+    } while(0)
+
+#define RAVA_TEST_EXPECT_RUNTIME_ERROR(result, source, class_name, method_name, msg) \
+    do { \
+        RavaTestContext_t _ctx; \
+        rava_test_context_init(&_ctx); \
+        rava_test_compile_and_run(&_ctx, source, class_name, method_name); \
+        bool _is_runtime_error = _ctx.parse_ok && _ctx.semantic_ok && _ctx.ir_ok && !_ctx.execute_ok; \
+        UNITTEST_ASSERT_TRUE(result, _is_runtime_error, msg); \
+        rava_test_context_cleanup(&_ctx); \
+    } while(0)
+
+#define RAVA_TEST_FILE_EXECUTES(result, filename, class_name, method_name, msg) \
+    do { \
+        char *_source = rava_test_read_file(filename); \
+        UNITTEST_ASSERT_NOT_NULL(result, _source, "Failed to read file: " filename); \
+        if (_source) { \
+            RavaTestContext_t _ctx; \
+            rava_test_context_init(&_ctx); \
+            bool _success = rava_test_compile_and_run(&_ctx, _source, class_name, method_name); \
+            if (!_success) { \
+                char _err_buf[256]; \
+                snprintf(_err_buf, sizeof(_err_buf), "%s: %s error: %s", msg, _ctx.error_stage, _ctx.error_message); \
+                UNITTEST_ASSERT_TRUE(result, false, _err_buf); \
+            } else { \
+                UNITTEST_ASSERT_TRUE(result, true, msg); \
+            } \
+            rava_test_context_cleanup(&_ctx); \
+            free(_source); \
+        } \
+    } while(0)
+
+#define RAVA_TEST_LEXER_OK(result, source, msg) \
+    do { \
+        RavaLexer_t *_lexer = rava_lexer_create(source); \
+        RavaToken_t *_token; \
+        bool _has_error = false; \
+        do { \
+            _token = rava_lexer_next_token(_lexer); \
+            if (_token->type == RAVA_TOKEN_ERROR) { \
+                _has_error = true; \
+                rava_token_destroy(_token); \
+                break; \
+            } \
+            RavaTokenType_e _type = _token->type; \
+            rava_token_destroy(_token); \
+            if (_type == RAVA_TOKEN_EOF) break; \
+        } while (1); \
+        UNITTEST_ASSERT_TRUE(result, !_has_error, msg); \
+        rava_lexer_destroy(_lexer); \
+    } while(0)
+
+#define RAVA_TEST_PARSER_OK(result, source, msg) \
+    do { \
+        RavaLexer_t *_lexer = rava_lexer_create(source); \
+        RavaParser_t *_parser = rava_parser_create(_lexer); \
+        RavaASTNode_t *_ast = rava_parser_parse(_parser); \
+        bool _parse_ok = _ast && !_parser->had_error; \
+        UNITTEST_ASSERT_TRUE(result, _parse_ok, msg); \
+        if (_ast) rava_ast_node_destroy(_ast); \
+        rava_parser_destroy(_parser); \
+        rava_lexer_destroy(_lexer); \
+    } while(0)
+
+#define RAVA_TEST_SEMANTIC_OK(result, source, msg) \
+    do { \
+        RavaLexer_t *_lexer = rava_lexer_create(source); \
+        RavaParser_t *_parser = rava_parser_create(_lexer); \
+        RavaASTNode_t *_ast = rava_parser_parse(_parser); \
+        bool _semantic_ok = false; \
+        if (_ast && !_parser->had_error) { \
+            RavaSemanticAnalyzer_t *_analyzer = rava_semantic_analyzer_create(); \
+            _semantic_ok = rava_semantic_analyze(_analyzer, _ast); \
+            rava_semantic_analyzer_destroy(_analyzer); \
+        } \
+        UNITTEST_ASSERT_TRUE(result, _semantic_ok, msg); \
+        if (_ast) rava_ast_node_destroy(_ast); \
+        rava_parser_destroy(_parser); \
+        rava_lexer_destroy(_lexer); \
+    } while(0)
+
+#define RAVA_TEST_IR_OK(result, source, msg) \
+    do { \
+        RavaLexer_t *_lexer = rava_lexer_create(source); \
+        RavaParser_t *_parser = rava_parser_create(_lexer); \
+        RavaASTNode_t *_ast = rava_parser_parse(_parser); \
+        bool _ir_ok = false; \
+        RavaSemanticAnalyzer_t *_analyzer = NULL; \
+        RavaIRGenerator_t *_ir_gen = NULL; \
+        RavaProgram_t *_program = NULL; \
+        if (_ast && !_parser->had_error) { \
+            _analyzer = rava_semantic_analyzer_create(); \
+            if (rava_semantic_analyze(_analyzer, _ast)) { \
+                _ir_gen = rava_ir_generator_create(_analyzer); \
+                _program = rava_ir_generate(_ir_gen, _ast); \
+                _ir_ok = (_program != NULL); \
+            } \
+        } \
+        UNITTEST_ASSERT_TRUE(result, _ir_ok, msg); \
+        if (_program) rava_program_destroy(_program); \
+        if (_ir_gen) rava_ir_generator_destroy(_ir_gen); \
+        if (_analyzer) rava_semantic_analyzer_destroy(_analyzer); \
+        if (_ast) rava_ast_node_destroy(_ast); \
+        rava_parser_destroy(_parser); \
+        rava_lexer_destroy(_lexer); \
+    } while(0)
+
+#endif

tests/unittest.c

@@ -0,0 +1,924 @@
+#include "unittest.h"
+#include <math.h>
+#include <unistd.h>
+
+#define ANSI_RED     "\x1b[31m"
+#define ANSI_GREEN   "\x1b[32m"
+#define ANSI_YELLOW  "\x1b[33m"
+#define ANSI_BLUE    "\x1b[34m"
+#define ANSI_RESET   "\x1b[0m"
+
+static char* _strdup_safe(const char *str) {
+    if (!str) return NULL;
+    return strdup(str);
+}
+
+static void _free_safe(void *ptr) {
+    if (ptr) free(ptr);
+}
+
+double unittest_get_time_ms(void) {
+    struct timespec ts;
+    clock_gettime(CLOCK_MONOTONIC, &ts);
+    return (ts.tv_sec * 1000.0) + (ts.tv_nsec / 1000000.0);
+}
+
+static char* _format_int(int value) {
+    char *buf = malloc(32);
+    snprintf(buf, 32, "%d", value);
+    return buf;
+}
+
+static char* _format_long(long value) {
+    char *buf = malloc(32);
+    snprintf(buf, 32, "%ld", value);
+    return buf;
+}
+
+static char* _format_double(double value) {
+    char *buf = malloc(64);
+    snprintf(buf, 64, "%.15g", value);
+    return buf;
+}
+
+static char* _format_ptr(void *ptr) {
+    char *buf = malloc(32);
+    if (ptr) {
+        snprintf(buf, 32, "%p", ptr);
+    } else {
+        snprintf(buf, 32, "NULL");
+    }
+    return buf;
+}
+
+static char* _format_bool(bool value) {
+    return strdup(value ? "true" : "false");
+}
+
+static char* _escape_json(const char *str) {
+    if (!str) return strdup("null");
+    size_t len = strlen(str);
+    char *buf = malloc(len * 6 + 3);
+    char *p = buf;
+    *p++ = '"';
+    for (size_t i = 0; i < len; i++) {
+        switch (str[i]) {
+            case '"':  *p++ = '\\'; *p++ = '"'; break;
+            case '\\': *p++ = '\\'; *p++ = '\\'; break;
+            case '\n': *p++ = '\\'; *p++ = 'n'; break;
+            case '\r': *p++ = '\\'; *p++ = 'r'; break;
+            case '\t': *p++ = '\\'; *p++ = 't'; break;
+            default:
+                if ((unsigned char)str[i] < 32) {
+                    p += sprintf(p, "\\u%04x", (unsigned char)str[i]);
+                } else {
+                    *p++ = str[i];
+                }
+        }
+    }
+    *p++ = '"';
+    *p = '\0';
+    return buf;
+}
+
+static char* _escape_xml(const char *str) {
+    if (!str) return strdup("");
+    size_t len = strlen(str);
+    char *buf = malloc(len * 6 + 1);
+    char *p = buf;
+    for (size_t i = 0; i < len; i++) {
+        switch (str[i]) {
+            case '<':  strcpy(p, "&lt;"); p += 4; break;
+            case '>':  strcpy(p, "&gt;"); p += 4; break;
+            case '&':  strcpy(p, "&amp;"); p += 5; break;
+            case '"':  strcpy(p, "&quot;"); p += 6; break;
+            case '\'': strcpy(p, "&apos;"); p += 6; break;
+            default:   *p++ = str[i];
+        }
+    }
+    *p = '\0';
+    return buf;
+}
+
+static char* _escape_html(const char *str) {
+    return _escape_xml(str);
+}
+
+UnittestConfig_t* unittest_config_create(void) {
+    UnittestConfig_t *config = calloc(1, sizeof(UnittestConfig_t));
+    config->output_format = UNITTEST_FORMAT_TEXT;
+    config->verbosity = 1;
+    config->output_stream = stdout;
+    config->track_execution_time = true;
+    config->show_full_traceback = true;
+    config->max_traceback_depth = 10;
+    config->use_colors = isatty(STDOUT_FILENO);
+    return config;
+}
+
+void unittest_config_destroy(UnittestConfig_t *config) {
+    if (!config) return;
+    _free_safe(config->output_file);
+    if (config->test_names_to_run) {
+        for (size_t i = 0; i < config->test_names_count; i++) {
+            _free_safe(config->test_names_to_run[i]);
+        }
+        free(config->test_names_to_run);
+    }
+    _free_safe(config->test_pattern);
+    _free_safe(config->test_runner_name);
+    _free_safe(config->test_environment);
+    free(config);
+}
+
+UnittestTestSuite_t* unittest_test_suite_create(const char *suite_name) {
+    UnittestTestSuite_t *suite = calloc(1, sizeof(UnittestTestSuite_t));
+    suite->test_suite_name = _strdup_safe(suite_name);
+    suite->test_case_capacity = 16;
+    suite->test_cases = calloc(suite->test_case_capacity, sizeof(UnittestTestCase_t*));
+    suite->start_time = time(NULL);
+    return suite;
+}
+
+void unittest_test_suite_add_test_case(UnittestTestSuite_t *suite, UnittestTestCase_t *test_case) {
+    if (!suite || !test_case) return;
+    if (suite->test_case_count >= suite->test_case_capacity) {
+        suite->test_case_capacity *= 2;
+        suite->test_cases = realloc(suite->test_cases, suite->test_case_capacity * sizeof(UnittestTestCase_t*));
+    }
+    suite->test_cases[suite->test_case_count++] = test_case;
+    suite->total_passed += test_case->passed_count;
+    suite->total_failed += test_case->failed_count;
+    suite->total_errors += test_case->error_count;
+    suite->total_skipped += test_case->skipped_count;
+    suite->total_xfail += test_case->xfail_count;
+    suite->total_xpass += test_case->xpass_count;
+    suite->total_suite_time_ms += test_case->total_time_ms;
+}
+
+void unittest_test_suite_destroy(UnittestTestSuite_t *suite) {
+    if (!suite) return;
+    for (size_t i = 0; i < suite->test_case_count; i++) {
+        unittest_test_case_destroy(suite->test_cases[i]);
+    }
+    free(suite->test_cases);
+    _free_safe(suite->test_suite_name);
+    free(suite);
+}
+
+UnittestTestCase_t* unittest_test_case_create(const char *class_name) {
+    UnittestTestCase_t *tc = calloc(1, sizeof(UnittestTestCase_t));
+    tc->class_name = _strdup_safe(class_name);
+    tc->result_capacity = 16;
+    tc->results = calloc(tc->result_capacity, sizeof(UnittestTestResult_t*));
+    return tc;
+}
+
+void unittest_test_case_add_result(UnittestTestCase_t *test_case, UnittestTestResult_t *result) {
+    if (!test_case || !result) return;
+    if (test_case->result_count >= test_case->result_capacity) {
+        test_case->result_capacity *= 2;
+        test_case->results = realloc(test_case->results, test_case->result_capacity * sizeof(UnittestTestResult_t*));
+    }
+    test_case->results[test_case->result_count++] = result;
+    test_case->total_time_ms += result->execution_time_ms;
+    switch (result->result_type) {
+        case UNITTEST_PASS:  test_case->passed_count++; break;
+        case UNITTEST_FAIL:  test_case->failed_count++; break;
+        case UNITTEST_ERROR: test_case->error_count++; break;
+        case UNITTEST_SKIP:  test_case->skipped_count++; break;
+        case UNITTEST_XFAIL: test_case->xfail_count++; break;
+        case UNITTEST_XPASS: test_case->xpass_count++; break;
+    }
+}
+
+void unittest_test_case_destroy(UnittestTestCase_t *test_case) {
+    if (!test_case) return;
+    for (size_t i = 0; i < test_case->result_count; i++) {
+        unittest_test_result_destroy(test_case->results[i]);
+    }
+    free(test_case->results);
+    _free_safe(test_case->class_name);
+    free(test_case);
+}
+
+UnittestTestResult_t* unittest_test_result_create(const char *test_class, const char *test_method, int line_number, const char *file_name) {
+    UnittestTestResult_t *result = calloc(1, sizeof(UnittestTestResult_t));
+    result->test_class = _strdup_safe(test_class);
+    result->test_method = _strdup_safe(test_method);
+    result->line_number = line_number;
+    result->file_name = _strdup_safe(file_name);
+    result->result_type = UNITTEST_PASS;
+    result->assertion_capacity = 16;
+    result->assertions = calloc(result->assertion_capacity, sizeof(UnittestAssertionInfo_t*));
+    if (test_class && test_method) {
+        size_t len = strlen(test_class) + strlen(test_method) + 2;
+        result->test_name = malloc(len);
+        snprintf(result->test_name, len, "%s.%s", test_class, test_method);
+    }
+    return result;
+}
+
+void unittest_test_result_set_skip(UnittestTestResult_t *result, const char *reason) {
+    if (!result) return;
+    result->result_type = UNITTEST_SKIP;
+    result->skip_reason = _strdup_safe(reason);
+}
+
+void unittest_test_result_set_xfail(UnittestTestResult_t *result, const char *reason) {
+    if (!result) return;
+    result->result_type = UNITTEST_XFAIL;
+    result->error_message = _strdup_safe(reason);
+}
+
+void unittest_test_result_set_error(UnittestTestResult_t *result, const char *error_message, const char *traceback) {
+    if (!result) return;
+    result->result_type = UNITTEST_ERROR;
+    _free_safe(result->error_message);
+    _free_safe(result->traceback);
+    result->error_message = _strdup_safe(error_message);
+    result->traceback = _strdup_safe(traceback);
+}
+
+void unittest_test_result_destroy(UnittestTestResult_t *result) {
+    if (!result) return;
+    _free_safe(result->test_name);
+    _free_safe(result->test_method);
+    _free_safe(result->test_class);
+    _free_safe(result->error_message);
+    _free_safe(result->file_name);
+    _free_safe(result->traceback);
+    _free_safe(result->skip_reason);
+    for (size_t i = 0; i < result->assertion_count; i++) {
+        UnittestAssertionInfo_t *a = result->assertions[i];
+        _free_safe(a->assertion_type);
+        _free_safe(a->message);
+        _free_safe(a->file_name);
+        _free_safe(a->expected_str);
+        _free_safe(a->actual_str);
+        free(a);
+    }
+    free(result->assertions);
+    free(result);
+}
+
+void unittest_record_assertion(UnittestTestResult_t *result, const char *assertion_type, const char *expected_str, const char *actual_str, const char *message, int line_number, const char *file_name, bool passed) {
+    if (!result) return;
+    if (result->assertion_count >= result->assertion_capacity) {
+        result->assertion_capacity *= 2;
+        result->assertions = realloc(result->assertions, result->assertion_capacity * sizeof(UnittestAssertionInfo_t*));
+    }
+    UnittestAssertionInfo_t *info = calloc(1, sizeof(UnittestAssertionInfo_t));
+    info->assertion_type = _strdup_safe(assertion_type);
+    info->expected_str = _strdup_safe(expected_str);
+    info->actual_str = _strdup_safe(actual_str);
+    info->message = _strdup_safe(message);
+    info->line_number = line_number;
+    info->file_name = _strdup_safe(file_name);
+    info->passed = passed;
+    result->assertions[result->assertion_count++] = info;
+    if (!passed && result->result_type == UNITTEST_PASS) {
+        result->result_type = UNITTEST_FAIL;
+        char buf[512];
+        snprintf(buf, sizeof(buf), "AssertionError: %s - Expected %s, got %s", message ? message : assertion_type, expected_str ? expected_str : "?", actual_str ? actual_str : "?");
+        _free_safe(result->error_message);
+        result->error_message = strdup(buf);
+    }
+}
+
+bool unittest_assert_int_equal(UnittestTestResult_t *result, int expected, int actual, const char *message, int line, const char *file) {
+    bool passed = (expected == actual);
+    char *exp_str = _format_int(expected);
+    char *act_str = _format_int(actual);
+    unittest_record_assertion(result, "assertEqual", exp_str, act_str, message, line, file, passed);
+    free(exp_str);
+    free(act_str);
+    return passed;
+}
+
+bool unittest_assert_int_not_equal(UnittestTestResult_t *result, int expected, int actual, const char *message, int line, const char *file) {
+    bool passed = (expected != actual);
+    char *exp_str = _format_int(expected);
+    char *act_str = _format_int(actual);
+    unittest_record_assertion(result, "assertNotEqual", exp_str, act_str, message, line, file, passed);
+    free(exp_str);
+    free(act_str);
+    return passed;
+}
+
+bool unittest_assert_int_greater(UnittestTestResult_t *result, int actual, int threshold, const char *message, int line, const char *file) {
+    bool passed = (actual > threshold);
+    char *exp_str = _format_int(threshold);
+    char *act_str = _format_int(actual);
+    unittest_record_assertion(result, "assertGreater", exp_str, act_str, message, line, file, passed);
+    free(exp_str);
+    free(act_str);
+    return passed;
+}
+
+bool unittest_assert_int_less(UnittestTestResult_t *result, int actual, int threshold, const char *message, int line, const char *file) {
+    bool passed = (actual < threshold);
+    char *exp_str = _format_int(threshold);
+    char *act_str = _format_int(actual);
+    unittest_record_assertion(result, "assertLess", exp_str, act_str, message, line, file, passed);
+    free(exp_str);
+    free(act_str);
+    return passed;
+}
+
+bool unittest_assert_int_greater_equal(UnittestTestResult_t *result, int actual, int threshold, const char *message, int line, const char *file) {
+    bool passed = (actual >= threshold);
+    char *exp_str = _format_int(threshold);
+    char *act_str = _format_int(actual);
+    unittest_record_assertion(result, "assertGreaterEqual", exp_str, act_str, message, line, file, passed);
+    free(exp_str);
+    free(act_str);
+    return passed;
+}
+
+bool unittest_assert_int_less_equal(UnittestTestResult_t *result, int actual, int threshold, const char *message, int line, const char *file) {
+    bool passed = (actual <= threshold);
+    char *exp_str = _format_int(threshold);
+    char *act_str = _format_int(actual);
+    unittest_record_assertion(result, "assertLessEqual", exp_str, act_str, message, line, file, passed);
+    free(exp_str);
+    free(act_str);
+    return passed;
+}
+
+bool unittest_assert_long_equal(UnittestTestResult_t *result, long expected, long actual, const char *message, int line, const char *file) {
+    bool passed = (expected == actual);
+    char *exp_str = _format_long(expected);
+    char *act_str = _format_long(actual);
+    unittest_record_assertion(result, "assertEqual", exp_str, act_str, message, line, file, passed);
+    free(exp_str);
+    free(act_str);
+    return passed;
+}
+
+bool unittest_assert_long_not_equal(UnittestTestResult_t *result, long expected, long actual, const char *message, int line, const char *file) {
+    bool passed = (expected != actual);
+    char *exp_str = _format_long(expected);
+    char *act_str = _format_long(actual);
+    unittest_record_assertion(result, "assertNotEqual", exp_str, act_str, message, line, file, passed);
+    free(exp_str);
+    free(act_str);
+    return passed;
+}
+
+bool unittest_assert_double_equal(UnittestTestResult_t *result, double expected, double actual, double epsilon, const char *message, int line, const char *file) {
+    bool passed = fabs(expected - actual) <= epsilon;
+    char *exp_str = _format_double(expected);
+    char *act_str = _format_double(actual);
+    unittest_record_assertion(result, "assertAlmostEqual", exp_str, act_str, message, line, file, passed);
+    free(exp_str);
+    free(act_str);
+    return passed;
+}
+
+bool unittest_assert_double_not_equal(UnittestTestResult_t *result, double expected, double actual, double epsilon, const char *message, int line, const char *file) {
+    bool passed = fabs(expected - actual) > epsilon;
+    char *exp_str = _format_double(expected);
+    char *act_str = _format_double(actual);
+    unittest_record_assertion(result, "assertNotAlmostEqual", exp_str, act_str, message, line, file, passed);
+    free(exp_str);
+    free(act_str);
+    return passed;
+}
+
+bool unittest_assert_string_equal(UnittestTestResult_t *result, const char *expected, const char *actual, const char *message, int line, const char *file) {
+    bool passed;
+    if (expected == NULL && actual == NULL) {
+        passed = true;
+    } else if (expected == NULL || actual == NULL) {
+        passed = false;
+    } else {
+        passed = (strcmp(expected, actual) == 0);
+    }
+    unittest_record_assertion(result, "assertEqual", expected ? expected : "NULL", actual ? actual : "NULL", message, line, file, passed);
+    return passed;
+}
+
+bool unittest_assert_string_not_equal(UnittestTestResult_t *result, const char *expected, const char *actual, const char *message, int line, const char *file) {
+    bool passed;
+    if (expected == NULL && actual == NULL) {
+        passed = false;
+    } else if (expected == NULL || actual == NULL) {
+        passed = true;
+    } else {
+        passed = (strcmp(expected, actual) != 0);
+    }
+    unittest_record_assertion(result, "assertNotEqual", expected ? expected : "NULL", actual ? actual : "NULL", message, line, file, passed);
+    return passed;
+}
+
+bool unittest_assert_string_contains(UnittestTestResult_t *result, const char *substring, const char *string, const char *message, int line, const char *file) {
+    bool passed = false;
+    if (string && substring) {
+        passed = (strstr(string, substring) != NULL);
+    }
+    unittest_record_assertion(result, "assertIn", substring ? substring : "NULL", string ? string : "NULL", message, line, file, passed);
+    return passed;
+}
+
+bool unittest_assert_string_not_contains(UnittestTestResult_t *result, const char *substring, const char *string, const char *message, int line, const char *file) {
+    bool passed = true;
+    if (string && substring) {
+        passed = (strstr(string, substring) == NULL);
+    }
+    unittest_record_assertion(result, "assertNotIn", substring ? substring : "NULL", string ? string : "NULL", message, line, file, passed);
+    return passed;
+}
+
+bool unittest_assert_string_starts_with(UnittestTestResult_t *result, const char *prefix, const char *string, const char *message, int line, const char *file) {
+    bool passed = false;
+    if (string && prefix) {
+        size_t prefix_len = strlen(prefix);
+        passed = (strncmp(string, prefix, prefix_len) == 0);
+    }
+    unittest_record_assertion(result, "assertStartsWith", prefix ? prefix : "NULL", string ? string : "NULL", message, line, file, passed);
+    return passed;
+}
+
+bool unittest_assert_string_ends_with(UnittestTestResult_t *result, const char *suffix, const char *string, const char *message, int line, const char *file) {
+    bool passed = false;
+    if (string && suffix) {
+        size_t str_len = strlen(string);
+        size_t suffix_len = strlen(suffix);
+        if (str_len >= suffix_len) {
+            passed = (strcmp(string + str_len - suffix_len, suffix) == 0);
+        }
+    }
+    unittest_record_assertion(result, "assertEndsWith", suffix ? suffix : "NULL", string ? string : "NULL", message, line, file, passed);
+    return passed;
+}
+
+bool unittest_assert_true(UnittestTestResult_t *result, bool condition, const char *message, int line, const char *file) {
+    char *act_str = _format_bool(condition);
+    unittest_record_assertion(result, "assertTrue", "true", act_str, message, line, file, condition);
+    free(act_str);
+    return condition;
+}
+
+bool unittest_assert_false(UnittestTestResult_t *result, bool condition, const char *message, int line, const char *file) {
+    char *act_str = _format_bool(condition);
+    unittest_record_assertion(result, "assertFalse", "false", act_str, message, line, file, !condition);
+    free(act_str);
+    return !condition;
+}
+
+bool unittest_assert_null(UnittestTestResult_t *result, void *ptr, const char *message, int line, const char *file) {
+    bool passed = (ptr == NULL);
+    char *act_str = _format_ptr(ptr);
+    unittest_record_assertion(result, "assertIsNone", "NULL", act_str, message, line, file, passed);
+    free(act_str);
+    return passed;
+}
+
+bool unittest_assert_not_null(UnittestTestResult_t *result, void *ptr, const char *message, int line, const char *file) {
+    bool passed = (ptr != NULL);
+    char *act_str = _format_ptr(ptr);
+    unittest_record_assertion(result, "assertIsNotNone", "not NULL", act_str, message, line, file, passed);
+    free(act_str);
+    return passed;
+}
+
+bool unittest_assert_memory_equal(UnittestTestResult_t *result, const void *expected, const void *actual, size_t length, const char *message, int line, const char *file) {
+    bool passed = false;
+    if (expected && actual) {
+        passed = (memcmp(expected, actual, length) == 0);
+    } else if (expected == NULL && actual == NULL) {
+        passed = true;
+    }
+    char exp_str[64], act_str[64];
+    snprintf(exp_str, sizeof(exp_str), "memory[%zu bytes]", length);
+    snprintf(act_str, sizeof(act_str), "memory[%zu bytes]", length);
+    unittest_record_assertion(result, "assertMemoryEqual", exp_str, act_str, message, line, file, passed);
+    return passed;
+}
+
+bool unittest_assert_array_int_equal(UnittestTestResult_t *result, const int *expected, const int *actual, size_t length, const char *message, int line, const char *file) {
+    bool passed = true;
+    if (expected && actual) {
+        for (size_t i = 0; i < length; i++) {
+            if (expected[i] != actual[i]) {
+                passed = false;
+                break;
+            }
+        }
+    } else if (expected != actual) {
+        passed = false;
+    }
+    char exp_str[64], act_str[64];
+    snprintf(exp_str, sizeof(exp_str), "int[%zu]", length);
+    snprintf(act_str, sizeof(act_str), "int[%zu]", length);
+    unittest_record_assertion(result, "assertArrayEqual", exp_str, act_str, message, line, file, passed);
+    return passed;
+}
+
+bool unittest_assert_fail(UnittestTestResult_t *result, const char *message, int line, const char *file) {
+    unittest_record_assertion(result, "fail", "pass", "fail", message, line, file, false);
+    return false;
+}
+
+bool unittest_assert_pass(UnittestTestResult_t *result, const char *message, int line, const char *file) {
+    unittest_record_assertion(result, "pass", "pass", "pass", message, line, file, true);
+    return true;
+}
+
+int unittest_run_suite(UnittestTestSuite_t *suite, UnittestConfig_t *config) {
+    (void)config;
+    if (!suite) return -1;
+    return suite->total_failed + suite->total_errors;
+}
+
+void unittest_get_summary(UnittestTestSuite_t *suite, int *total, int *passed, int *failed, int *errors, int *skipped) {
+    if (!suite) return;
+    int t = 0;
+    for (size_t i = 0; i < suite->test_case_count; i++) {
+        t += (int)suite->test_cases[i]->result_count;
+    }
+    if (total) *total = t;
+    if (passed) *passed = suite->total_passed;
+    if (failed) *failed = suite->total_failed;
+    if (errors) *errors = suite->total_errors;
+    if (skipped) *skipped = suite->total_skipped;
+}
+
+static const char* _result_type_str(UnittestResultType_e type) {
+    switch (type) {
+        case UNITTEST_PASS:  return "ok";
+        case UNITTEST_FAIL:  return "FAIL";
+        case UNITTEST_ERROR: return "ERROR";
+        case UNITTEST_SKIP:  return "SKIP";
+        case UNITTEST_XFAIL: return "xfail";
+        case UNITTEST_XPASS: return "XPASS";
+        default: return "UNKNOWN";
+    }
+}
+
+static const char* _result_type_color(UnittestResultType_e type, bool use_colors) {
+    if (!use_colors) return "";
+    switch (type) {
+        case UNITTEST_PASS:  return ANSI_GREEN;
+        case UNITTEST_FAIL:  return ANSI_RED;
+        case UNITTEST_ERROR: return ANSI_RED;
+        case UNITTEST_SKIP:  return ANSI_YELLOW;
+        case UNITTEST_XFAIL: return ANSI_YELLOW;
+        case UNITTEST_XPASS: return ANSI_YELLOW;
+        default: return "";
+    }
+}
+
+void _unittest_format_text(UnittestTestSuite_t *suite, UnittestConfig_t *config, FILE *output) {
+    bool colors = config->use_colors;
+    const char *reset = colors ? ANSI_RESET : "";
+    fprintf(output, "================================================================================\n");
+    fprintf(output, "Test Suite: %s\n", suite->test_suite_name ? suite->test_suite_name : "Unnamed");
+    char time_buf[64];
+    struct tm *tm_info = localtime(&suite->start_time);
+    strftime(time_buf, sizeof(time_buf), "%Y-%m-%d %H:%M:%S", tm_info);
+    fprintf(output, "Started: %s\n", time_buf);
+    fprintf(output, "================================================================================\n\n");
+    for (size_t i = 0; i < suite->test_case_count; i++) {
+        UnittestTestCase_t *tc = suite->test_cases[i];
+        for (size_t j = 0; j < tc->result_count; j++) {
+            UnittestTestResult_t *r = tc->results[j];
+            const char *color = _result_type_color(r->result_type, colors);
+            fprintf(output, "%s (%s) ... %s%s%s", r->test_method ? r->test_method : "?", tc->class_name ? tc->class_name : "?", color, _result_type_str(r->result_type), reset);
+            if (config->track_execution_time) {
+                fprintf(output, " (%.1fms)", r->execution_time_ms);
+            }
+            if (config->verbosity >= 2 && r->assertion_count > 0) {
+                fprintf(output, " [%zu assertions]", r->assertion_count);
+            }
+            fprintf(output, "\n");
+            if (r->result_type == UNITTEST_FAIL || r->result_type == UNITTEST_ERROR) {
+                if (r->error_message) {
+                    fprintf(output, "    %s\n", r->error_message);
+                }
+                if (r->file_name && r->line_number > 0) {
+                    fprintf(output, "    File: %s, Line: %d\n", r->file_name, r->line_number);
+                }
+                if (config->show_full_traceback && r->traceback) {
+                    fprintf(output, "    Traceback:\n%s\n", r->traceback);
+                }
+                fprintf(output, "\n");
+            } else if (r->result_type == UNITTEST_SKIP && r->skip_reason) {
+                fprintf(output, "    Reason: %s\n\n", r->skip_reason);
+            }
+        }
+    }
+    fprintf(output, "================================================================================\n");
+    int total = 0;
+    for (size_t i = 0; i < suite->test_case_count; i++) {
+        total += (int)suite->test_cases[i]->result_count;
+    }
+    fprintf(output, "Ran %d tests in %.1fms\n", total, suite->total_suite_time_ms);
+    fprintf(output, "Result: %d passed, %d failed, %d errors, %d skipped", suite->total_passed, suite->total_failed, suite->total_errors, suite->total_skipped);
+    if (suite->total_xfail > 0) fprintf(output, ", %d xfail", suite->total_xfail);
+    if (suite->total_xpass > 0) fprintf(output, ", %d xpass", suite->total_xpass);
+    fprintf(output, "\n");
+    if (suite->total_failed > 0 || suite->total_errors > 0) {
+        fprintf(output, "%sFAILED%s (failures=%d, errors=%d)\n", colors ? ANSI_RED : "", reset, suite->total_failed, suite->total_errors);
+    } else {
+        fprintf(output, "%sOK%s\n", colors ? ANSI_GREEN : "", reset);
+    }
+    fprintf(output, "================================================================================\n");
+}
+
+void _unittest_format_quiet(UnittestTestSuite_t *suite, UnittestConfig_t *config, FILE *output) {
+    (void)config;
+    for (size_t i = 0; i < suite->test_case_count; i++) {
+        UnittestTestCase_t *tc = suite->test_cases[i];
+        for (size_t j = 0; j < tc->result_count; j++) {
+            UnittestTestResult_t *r = tc->results[j];
+            switch (r->result_type) {
+                case UNITTEST_PASS:  fputc('.', output); break;
+                case UNITTEST_FAIL:  fputc('F', output); break;
+                case UNITTEST_ERROR: fputc('E', output); break;
+                case UNITTEST_SKIP:  fputc('S', output); break;
+                case UNITTEST_XFAIL: fputc('x', output); break;
+                case UNITTEST_XPASS: fputc('X', output); break;
+            }
+        }
+    }
+    fputc('\n', output);
+    if (suite->total_failed > 0 || suite->total_errors > 0) {
+        fprintf(output, "FAILED (failures=%d, errors=%d)\n", suite->total_failed, suite->total_errors);
+    } else {
+        fprintf(output, "OK\n");
+    }
+}
+
+void _unittest_format_json(UnittestTestSuite_t *suite, UnittestConfig_t *config, FILE *output) {
+    (void)config;
+    char time_buf[64];
+    struct tm *tm_info = gmtime(&suite->start_time);
+    strftime(time_buf, sizeof(time_buf), "%Y-%m-%dT%H:%M:%SZ", tm_info);
+    char *suite_name = _escape_json(suite->test_suite_name);
+    fprintf(output, "{\n");
+    fprintf(output, "  \"testSuite\": %s,\n", suite_name);
+    fprintf(output, "  \"timestamp\": \"%s\",\n", time_buf);
+    fprintf(output, "  \"duration\": %.1f,\n", suite->total_suite_time_ms);
+    fprintf(output, "  \"tests\": [\n");
+    bool first_test = true;
+    for (size_t i = 0; i < suite->test_case_count; i++) {
+        UnittestTestCase_t *tc = suite->test_cases[i];
+        for (size_t j = 0; j < tc->result_count; j++) {
+            if (!first_test) fprintf(output, ",\n");
+            first_test = false;
+            UnittestTestResult_t *r = tc->results[j];
+            char *name = _escape_json(r->test_method);
+            char *cls = _escape_json(tc->class_name);
+            char *msg = _escape_json(r->error_message);
+            char *file = _escape_json(r->file_name);
+            const char *status;
+            switch (r->result_type) {
+                case UNITTEST_PASS:  status = "PASS"; break;
+                case UNITTEST_FAIL:  status = "FAIL"; break;
+                case UNITTEST_ERROR: status = "ERROR"; break;
+                case UNITTEST_SKIP:  status = "SKIP"; break;
+                case UNITTEST_XFAIL: status = "XFAIL"; break;
+                case UNITTEST_XPASS: status = "XPASS"; break;
+                default: status = "UNKNOWN";
+            }
+            fprintf(output, "    {\n");
+            fprintf(output, "      \"name\": %s,\n", name);
+            fprintf(output, "      \"className\": %s,\n", cls);
+            fprintf(output, "      \"status\": \"%s\",\n", status);
+            fprintf(output, "      \"duration\": %.1f,\n", r->execution_time_ms);
+            fprintf(output, "      \"assertions\": %zu,\n", r->assertion_count);
+            fprintf(output, "      \"message\": %s,\n", msg);
+            fprintf(output, "      \"file\": %s,\n", file);
+            fprintf(output, "      \"line\": %d\n", r->line_number);
+            fprintf(output, "    }");
+            free(name);
+            free(cls);
+            free(msg);
+            free(file);
+        }
+    }
+    fprintf(output, "\n  ],\n");
+    int total = 0;
+    for (size_t i = 0; i < suite->test_case_count; i++) {
+        total += (int)suite->test_cases[i]->result_count;
+    }
+    fprintf(output, "  \"summary\": {\n");
+    fprintf(output, "    \"total\": %d,\n", total);
+    fprintf(output, "    \"passed\": %d,\n", suite->total_passed);
+    fprintf(output, "    \"failed\": %d,\n", suite->total_failed);
+    fprintf(output, "    \"errors\": %d,\n", suite->total_errors);
+    fprintf(output, "    \"skipped\": %d,\n", suite->total_skipped);
+    fprintf(output, "    \"xfail\": %d,\n", suite->total_xfail);
+    fprintf(output, "    \"xpass\": %d\n", suite->total_xpass);
+    fprintf(output, "  }\n");
+    fprintf(output, "}\n");
+    free(suite_name);
+}
+
+void _unittest_format_xml(UnittestTestSuite_t *suite, UnittestConfig_t *config, FILE *output) {
+    (void)config;
+    int total = 0;
+    for (size_t i = 0; i < suite->test_case_count; i++) {
+        total += (int)suite->test_cases[i]->result_count;
+    }
+    char *suite_name = _escape_xml(suite->test_suite_name);
+    fprintf(output, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
+    fprintf(output, "<testsuites name=\"%s\" tests=\"%d\" failures=\"%d\" errors=\"%d\" skipped=\"%d\" time=\"%.3f\">\n", suite_name, total, suite->total_failed, suite->total_errors, suite->total_skipped, suite->total_suite_time_ms / 1000.0);
+    for (size_t i = 0; i < suite->test_case_count; i++) {
+        UnittestTestCase_t *tc = suite->test_cases[i];
+        char *cls_name = _escape_xml(tc->class_name);
+        fprintf(output, "  <testsuite name=\"%s\" tests=\"%zu\" failures=\"%d\" errors=\"%d\" skipped=\"%d\" time=\"%.3f\">\n", cls_name, tc->result_count, tc->failed_count, tc->error_count, tc->skipped_count, tc->total_time_ms / 1000.0);
+        for (size_t j = 0; j < tc->result_count; j++) {
+            UnittestTestResult_t *r = tc->results[j];
+            char *method_name = _escape_xml(r->test_method);
+            fprintf(output, "    <testcase classname=\"%s\" name=\"%s\" time=\"%.3f\" assertions=\"%zu\"", cls_name, method_name, r->execution_time_ms / 1000.0, r->assertion_count);
+            if (r->result_type == UNITTEST_PASS) {
+                fprintf(output, "/>\n");
+            } else {
+                fprintf(output, ">\n");
+                if (r->result_type == UNITTEST_FAIL) {
+                    char *msg = _escape_xml(r->error_message);
+                    fprintf(output, "      <failure message=\"%s\" type=\"AssertionError\">\n", msg);
+                    if (r->file_name) fprintf(output, "        File: %s, Line: %d\n", r->file_name, r->line_number);
+                    fprintf(output, "      </failure>\n");
+                    free(msg);
+                } else if (r->result_type == UNITTEST_ERROR) {
+                    char *msg = _escape_xml(r->error_message);
+                    fprintf(output, "      <error message=\"%s\" type=\"RuntimeError\">\n", msg);
+                    if (r->traceback) {
+                        char *tb = _escape_xml(r->traceback);
+                        fprintf(output, "        %s\n", tb);
+                        free(tb);
+                    }
+                    fprintf(output, "      </error>\n");
+                    free(msg);
+                } else if (r->result_type == UNITTEST_SKIP) {
+                    char *reason = _escape_xml(r->skip_reason);
+                    fprintf(output, "      <skipped message=\"%s\"/>\n", reason ? reason : "");
+                    free(reason);
+                }
+                fprintf(output, "    </testcase>\n");
+            }
+            free(method_name);
+        }
+        fprintf(output, "  </testsuite>\n");
+        free(cls_name);
+    }
+    fprintf(output, "</testsuites>\n");
+    free(suite_name);
+}
+
+void _unittest_format_html(UnittestTestSuite_t *suite, UnittestConfig_t *config, FILE *output) {
+    (void)config;
+    int total = 0;
+    for (size_t i = 0; i < suite->test_case_count; i++) {
+        total += (int)suite->test_cases[i]->result_count;
+    }
+    char *suite_name = _escape_html(suite->test_suite_name);
+    char time_buf[64];
+    struct tm *tm_info = localtime(&suite->start_time);
+    strftime(time_buf, sizeof(time_buf), "%Y-%m-%d %H:%M:%S", tm_info);
+    fprintf(output, "<!DOCTYPE html>\n<html>\n<head>\n");
+    fprintf(output, "<meta charset=\"UTF-8\">\n");
+    fprintf(output, "<title>Test Report - %s</title>\n", suite_name);
+    fprintf(output, "<style>\n");
+    fprintf(output, "body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; margin: 20px; background: #f5f5f5; }\n");
+    fprintf(output, ".container { max-width: 1200px; margin: 0 auto; background: white; padding: 20px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); }\n");
+    fprintf(output, "h1 { color: #333; border-bottom: 2px solid #333; padding-bottom: 10px; }\n");
+    fprintf(output, ".summary { display: flex; gap: 20px; margin: 20px 0; flex-wrap: wrap; }\n");
+    fprintf(output, ".stat { padding: 15px 25px; border-radius: 6px; color: white; font-weight: bold; }\n");
+    fprintf(output, ".stat-pass { background: #28a745; }\n");
+    fprintf(output, ".stat-fail { background: #dc3545; }\n");
+    fprintf(output, ".stat-error { background: #fd7e14; }\n");
+    fprintf(output, ".stat-skip { background: #6c757d; }\n");
+    fprintf(output, ".stat-total { background: #007bff; }\n");
+    fprintf(output, ".test-case { margin: 15px 0; border: 1px solid #ddd; border-radius: 6px; overflow: hidden; }\n");
+    fprintf(output, ".test-case-header { background: #f8f9fa; padding: 10px 15px; font-weight: bold; border-bottom: 1px solid #ddd; }\n");
+    fprintf(output, ".test-result { padding: 10px 15px; border-bottom: 1px solid #eee; display: flex; align-items: center; gap: 10px; }\n");
+    fprintf(output, ".test-result:last-child { border-bottom: none; }\n");
+    fprintf(output, ".badge { padding: 3px 8px; border-radius: 4px; font-size: 12px; font-weight: bold; color: white; }\n");
+    fprintf(output, ".badge-pass { background: #28a745; }\n");
+    fprintf(output, ".badge-fail { background: #dc3545; }\n");
+    fprintf(output, ".badge-error { background: #fd7e14; }\n");
+    fprintf(output, ".badge-skip { background: #6c757d; }\n");
+    fprintf(output, ".test-name { flex: 1; }\n");
+    fprintf(output, ".test-time { color: #666; font-size: 14px; }\n");
+    fprintf(output, ".error-details { background: #fff3cd; padding: 10px 15px; font-family: monospace; font-size: 13px; white-space: pre-wrap; }\n");
+    fprintf(output, ".meta { color: #666; font-size: 14px; margin-bottom: 20px; }\n");
+    fprintf(output, "</style>\n</head>\n<body>\n<div class=\"container\">\n");
+    fprintf(output, "<h1>Test Report: %s</h1>\n", suite_name);
+    fprintf(output, "<div class=\"meta\">Started: %s | Duration: %.1fms</div>\n", time_buf, suite->total_suite_time_ms);
+    fprintf(output, "<div class=\"summary\">\n");
+    fprintf(output, "<div class=\"stat stat-total\">Total: %d</div>\n", total);
+    fprintf(output, "<div class=\"stat stat-pass\">Passed: %d</div>\n", suite->total_passed);
+    fprintf(output, "<div class=\"stat stat-fail\">Failed: %d</div>\n", suite->total_failed);
+    fprintf(output, "<div class=\"stat stat-error\">Errors: %d</div>\n", suite->total_errors);
+    fprintf(output, "<div class=\"stat stat-skip\">Skipped: %d</div>\n", suite->total_skipped);
+    fprintf(output, "</div>\n");
+    for (size_t i = 0; i < suite->test_case_count; i++) {
+        UnittestTestCase_t *tc = suite->test_cases[i];
+        char *cls_name = _escape_html(tc->class_name);
+        fprintf(output, "<div class=\"test-case\">\n");
+        fprintf(output, "<div class=\"test-case-header\">%s (%zu tests)</div>\n", cls_name, tc->result_count);
+        for (size_t j = 0; j < tc->result_count; j++) {
+            UnittestTestResult_t *r = tc->results[j];
+            char *method = _escape_html(r->test_method);
+            const char *badge_class;
+            const char *badge_text;
+            switch (r->result_type) {
+                case UNITTEST_PASS:  badge_class = "badge-pass"; badge_text = "PASS"; break;
+                case UNITTEST_FAIL:  badge_class = "badge-fail"; badge_text = "FAIL"; break;
+                case UNITTEST_ERROR: badge_class = "badge-error"; badge_text = "ERROR"; break;
+                case UNITTEST_SKIP:  badge_class = "badge-skip"; badge_text = "SKIP"; break;
+                case UNITTEST_XFAIL: badge_class = "badge-skip"; badge_text = "XFAIL"; break;
+                case UNITTEST_XPASS: badge_class = "badge-skip"; badge_text = "XPASS"; break;
+                default: badge_class = "badge-skip"; badge_text = "?"; break;
+            }
+            fprintf(output, "<div class=\"test-result\">\n");
+            fprintf(output, "<span class=\"badge %s\">%s</span>\n", badge_class, badge_text);
+            fprintf(output, "<span class=\"test-name\">%s</span>\n", method);
+            fprintf(output, "<span class=\"test-time\">%.1fms</span>\n", r->execution_time_ms);
+            fprintf(output, "</div>\n");
+            if (r->result_type == UNITTEST_FAIL || r->result_type == UNITTEST_ERROR) {
+                char *msg = _escape_html(r->error_message);
+                fprintf(output, "<div class=\"error-details\">%s\nFile: %s, Line: %d</div>\n", msg ? msg : "", r->file_name ? r->file_name : "?", r->line_number);
+                free(msg);
+            }
+            free(method);
+        }
+        fprintf(output, "</div>\n");
+        free(cls_name);
+    }
+    fprintf(output, "</div>\n</body>\n</html>\n");
+    free(suite_name);
+}
+
+void _unittest_format_tap(UnittestTestSuite_t *suite, UnittestConfig_t *config, FILE *output) {
+    (void)config;
+    int total = 0;
+    for (size_t i = 0; i < suite->test_case_count; i++) {
+        total += (int)suite->test_cases[i]->result_count;
+    }
+    fprintf(output, "TAP version 13\n");
+    fprintf(output, "1..%d\n", total);
+    int test_num = 0;
+    for (size_t i = 0; i < suite->test_case_count; i++) {
+        UnittestTestCase_t *tc = suite->test_cases[i];
+        for (size_t j = 0; j < tc->result_count; j++) {
+            test_num++;
+            UnittestTestResult_t *r = tc->results[j];
+            bool ok = (r->result_type == UNITTEST_PASS || r->result_type == UNITTEST_XFAIL);
+            fprintf(output, "%s %d - %s", ok ? "ok" : "not ok", test_num, r->test_name ? r->test_name : "?");
+            if (r->result_type == UNITTEST_SKIP) {
+                fprintf(output, " # SKIP %s", r->skip_reason ? r->skip_reason : "");
+            } else if (config->track_execution_time) {
+                fprintf(output, " # %.1fms", r->execution_time_ms);
+            }
+            fprintf(output, "\n");
+            if (r->result_type == UNITTEST_FAIL || r->result_type == UNITTEST_ERROR) {
+                fprintf(output, "  ---\n");
+                fprintf(output, "  message: %s\n", r->error_message ? r->error_message : "");
+                fprintf(output, "  severity: %s\n", r->result_type == UNITTEST_FAIL ? "fail" : "error");
+                if (r->file_name) {
+                    fprintf(output, "  file: %s\n", r->file_name);
+                    fprintf(output, "  line: %d\n", r->line_number);
+                }
+                fprintf(output, "  ...\n");
+            }
+        }
+    }
+    fprintf(output, "# Tests run: %d, Passed: %d, Failed: %d, Errors: %d, Skipped: %d\n", total, suite->total_passed, suite->total_failed, suite->total_errors, suite->total_skipped);
+}
+
+void unittest_generate_report(UnittestTestSuite_t *suite, UnittestConfig_t *config) {
+    if (!suite || !config) return;
+    FILE *output = config->output_stream ? config->output_stream : stdout;
+    FILE *file_output = NULL;
+    if (config->output_file) {
+        file_output = fopen(config->output_file, "w");
+        if (file_output) output = file_output;
+    }
+    switch (config->output_format) {
+        case UNITTEST_FORMAT_TEXT:
+            _unittest_format_text(suite, config, output);
+            break;
+        case UNITTEST_FORMAT_QUIET:
+            _unittest_format_quiet(suite, config, output);
+            break;
+        case UNITTEST_FORMAT_JSON:
+            _unittest_format_json(suite, config, output);
+            break;
+        case UNITTEST_FORMAT_XML:
+            _unittest_format_xml(suite, config, output);
+            break;
+        case UNITTEST_FORMAT_HTML:
+            _unittest_format_html(suite, config, output);
+            break;
+        case UNITTEST_FORMAT_TAP:
+            _unittest_format_tap(suite, config, output);
+            break;
+    }
+    if (file_output) fclose(file_output);
+}

tests/unittest.h

@@ -0,0 +1,264 @@
+#ifndef UNITTEST_H
+#define UNITTEST_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <time.h>
+
+typedef enum {
+    UNITTEST_PASS,
+    UNITTEST_FAIL,
+    UNITTEST_ERROR,
+    UNITTEST_SKIP,
+    UNITTEST_XFAIL,
+    UNITTEST_XPASS
+} UnittestResultType_e;
+
+typedef enum {
+    UNITTEST_FORMAT_TEXT,
+    UNITTEST_FORMAT_QUIET,
+    UNITTEST_FORMAT_JSON,
+    UNITTEST_FORMAT_XML,
+    UNITTEST_FORMAT_HTML,
+    UNITTEST_FORMAT_TAP
+} UnittestOutputFormat_e;
+
+typedef struct {
+    char *assertion_type;
+    char *message;
+    int line_number;
+    char *file_name;
+    char *expected_str;
+    char *actual_str;
+    double execution_time_ms;
+    bool passed;
+} UnittestAssertionInfo_t;
+
+typedef struct {
+    char *test_name;
+    char *test_method;
+    char *test_class;
+    UnittestResultType_e result_type;
+    char *error_message;
+    UnittestAssertionInfo_t **assertions;
+    size_t assertion_count;
+    size_t assertion_capacity;
+    double execution_time_ms;
+    int line_number;
+    char *file_name;
+    char *traceback;
+    char *skip_reason;
+} UnittestTestResult_t;
+
+typedef struct {
+    char *class_name;
+    UnittestTestResult_t **results;
+    size_t result_count;
+    size_t result_capacity;
+    int passed_count;
+    int failed_count;
+    int error_count;
+    int skipped_count;
+    int xfail_count;
+    int xpass_count;
+    double total_time_ms;
+} UnittestTestCase_t;
+
+typedef struct {
+    UnittestTestCase_t **test_cases;
+    size_t test_case_count;
+    size_t test_case_capacity;
+    int total_passed;
+    int total_failed;
+    int total_errors;
+    int total_skipped;
+    int total_xfail;
+    int total_xpass;
+    double total_suite_time_ms;
+    char *test_suite_name;
+    time_t start_time;
+} UnittestTestSuite_t;
+
+typedef struct {
+    UnittestOutputFormat_e output_format;
+    int verbosity;
+    FILE *output_stream;
+    char *output_file;
+    char **test_names_to_run;
+    size_t test_names_count;
+    bool stop_on_first_failure;
+    bool catch_exceptions;
+    bool track_execution_time;
+    double timeout_seconds;
+    bool show_local_variables;
+    bool show_full_traceback;
+    int max_traceback_depth;
+    char *test_pattern;
+    bool randomize_order;
+    int random_seed;
+    bool use_colors;
+    char *test_runner_name;
+    char *test_environment;
+} UnittestConfig_t;
+
+UnittestConfig_t* unittest_config_create(void);
+void unittest_config_destroy(UnittestConfig_t *config);
+
+UnittestTestSuite_t* unittest_test_suite_create(const char *suite_name);
+void unittest_test_suite_add_test_case(UnittestTestSuite_t *suite, UnittestTestCase_t *test_case);
+void unittest_test_suite_destroy(UnittestTestSuite_t *suite);
+
+UnittestTestCase_t* unittest_test_case_create(const char *class_name);
+void unittest_test_case_add_result(UnittestTestCase_t *test_case, UnittestTestResult_t *result);
+void unittest_test_case_destroy(UnittestTestCase_t *test_case);
+
+UnittestTestResult_t* unittest_test_result_create(const char *test_class, const char *test_method, int line_number, const char *file_name);
+void unittest_test_result_set_skip(UnittestTestResult_t *result, const char *reason);
+void unittest_test_result_set_xfail(UnittestTestResult_t *result, const char *reason);
+void unittest_test_result_set_error(UnittestTestResult_t *result, const char *error_message, const char *traceback);
+void unittest_test_result_destroy(UnittestTestResult_t *result);
+
+void unittest_record_assertion(UnittestTestResult_t *result, const char *assertion_type, const char *expected_str, const char *actual_str, const char *message, int line_number, const char *file_name, bool passed);
+
+bool unittest_assert_int_equal(UnittestTestResult_t *result, int expected, int actual, const char *message, int line, const char *file);
+bool unittest_assert_int_not_equal(UnittestTestResult_t *result, int expected, int actual, const char *message, int line, const char *file);
+bool unittest_assert_int_greater(UnittestTestResult_t *result, int actual, int threshold, const char *message, int line, const char *file);
+bool unittest_assert_int_less(UnittestTestResult_t *result, int actual, int threshold, const char *message, int line, const char *file);
+bool unittest_assert_int_greater_equal(UnittestTestResult_t *result, int actual, int threshold, const char *message, int line, const char *file);
+bool unittest_assert_int_less_equal(UnittestTestResult_t *result, int actual, int threshold, const char *message, int line, const char *file);
+
+bool unittest_assert_long_equal(UnittestTestResult_t *result, long expected, long actual, const char *message, int line, const char *file);
+bool unittest_assert_long_not_equal(UnittestTestResult_t *result, long expected, long actual, const char *message, int line, const char *file);
+
+bool unittest_assert_double_equal(UnittestTestResult_t *result, double expected, double actual, double epsilon, const char *message, int line, const char *file);
+bool unittest_assert_double_not_equal(UnittestTestResult_t *result, double expected, double actual, double epsilon, const char *message, int line, const char *file);
+
+bool unittest_assert_string_equal(UnittestTestResult_t *result, const char *expected, const char *actual, const char *message, int line, const char *file);
+bool unittest_assert_string_not_equal(UnittestTestResult_t *result, const char *expected, const char *actual, const char *message, int line, const char *file);
+bool unittest_assert_string_contains(UnittestTestResult_t *result, const char *substring, const char *string, const char *message, int line, const char *file);
+bool unittest_assert_string_not_contains(UnittestTestResult_t *result, const char *substring, const char *string, const char *message, int line, const char *file);
+bool unittest_assert_string_starts_with(UnittestTestResult_t *result, const char *prefix, const char *string, const char *message, int line, const char *file);
+bool unittest_assert_string_ends_with(UnittestTestResult_t *result, const char *suffix, const char *string, const char *message, int line, const char *file);
+
+bool unittest_assert_true(UnittestTestResult_t *result, bool condition, const char *message, int line, const char *file);
+bool unittest_assert_false(UnittestTestResult_t *result, bool condition, const char *message, int line, const char *file);
+
+bool unittest_assert_null(UnittestTestResult_t *result, void *ptr, const char *message, int line, const char *file);
+bool unittest_assert_not_null(UnittestTestResult_t *result, void *ptr, const char *message, int line, const char *file);
+
+bool unittest_assert_memory_equal(UnittestTestResult_t *result, const void *expected, const void *actual, size_t length, const char *message, int line, const char *file);
+bool unittest_assert_array_int_equal(UnittestTestResult_t *result, const int *expected, const int *actual, size_t length, const char *message, int line, const char *file);
+
+bool unittest_assert_fail(UnittestTestResult_t *result, const char *message, int line, const char *file);
+bool unittest_assert_pass(UnittestTestResult_t *result, const char *message, int line, const char *file);
+
+int unittest_run_suite(UnittestTestSuite_t *suite, UnittestConfig_t *config);
+void unittest_generate_report(UnittestTestSuite_t *suite, UnittestConfig_t *config);
+void unittest_get_summary(UnittestTestSuite_t *suite, int *total, int *passed, int *failed, int *errors, int *skipped);
+
+void _unittest_format_text(UnittestTestSuite_t *suite, UnittestConfig_t *config, FILE *output);
+void _unittest_format_quiet(UnittestTestSuite_t *suite, UnittestConfig_t *config, FILE *output);
+void _unittest_format_json(UnittestTestSuite_t *suite, UnittestConfig_t *config, FILE *output);
+void _unittest_format_xml(UnittestTestSuite_t *suite, UnittestConfig_t *config, FILE *output);
+void _unittest_format_html(UnittestTestSuite_t *suite, UnittestConfig_t *config, FILE *output);
+void _unittest_format_tap(UnittestTestSuite_t *suite, UnittestConfig_t *config, FILE *output);
+
+double unittest_get_time_ms(void);
+
+#define UNITTEST_ASSERT_EQUAL_INT(result, expected, actual, msg) \
+    unittest_assert_int_equal((result), (expected), (actual), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_NOT_EQUAL_INT(result, expected, actual, msg) \
+    unittest_assert_int_not_equal((result), (expected), (actual), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_GREATER(result, actual, threshold, msg) \
+    unittest_assert_int_greater((result), (actual), (threshold), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_LESS(result, actual, threshold, msg) \
+    unittest_assert_int_less((result), (actual), (threshold), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_GREATER_EQUAL(result, actual, threshold, msg) \
+    unittest_assert_int_greater_equal((result), (actual), (threshold), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_LESS_EQUAL(result, actual, threshold, msg) \
+    unittest_assert_int_less_equal((result), (actual), (threshold), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_EQUAL_LONG(result, expected, actual, msg) \
+    unittest_assert_long_equal((result), (expected), (actual), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_NOT_EQUAL_LONG(result, expected, actual, msg) \
+    unittest_assert_long_not_equal((result), (expected), (actual), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_EQUAL_DOUBLE(result, expected, actual, eps, msg) \
+    unittest_assert_double_equal((result), (expected), (actual), (eps), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_NOT_EQUAL_DOUBLE(result, expected, actual, eps, msg) \
+    unittest_assert_double_not_equal((result), (expected), (actual), (eps), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_EQUAL_STR(result, expected, actual, msg) \
+    unittest_assert_string_equal((result), (expected), (actual), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_NOT_EQUAL_STR(result, expected, actual, msg) \
+    unittest_assert_string_not_equal((result), (expected), (actual), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_STRING_CONTAINS(result, substring, string, msg) \
+    unittest_assert_string_contains((result), (substring), (string), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_STRING_NOT_CONTAINS(result, substring, string, msg) \
+    unittest_assert_string_not_contains((result), (substring), (string), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_STRING_STARTS_WITH(result, prefix, string, msg) \
+    unittest_assert_string_starts_with((result), (prefix), (string), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_STRING_ENDS_WITH(result, suffix, string, msg) \
+    unittest_assert_string_ends_with((result), (suffix), (string), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_TRUE(result, condition, msg) \
+    unittest_assert_true((result), (condition), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_FALSE(result, condition, msg) \
+    unittest_assert_false((result), (condition), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_NULL(result, ptr, msg) \
+    unittest_assert_null((result), (ptr), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_NOT_NULL(result, ptr, msg) \
+    unittest_assert_not_null((result), (ptr), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_MEMORY_EQUAL(result, expected, actual, len, msg) \
+    unittest_assert_memory_equal((result), (expected), (actual), (len), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_ARRAY_INT_EQUAL(result, expected, actual, len, msg) \
+    unittest_assert_array_int_equal((result), (expected), (actual), (len), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_FAIL(result, msg) \
+    unittest_assert_fail((result), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_ASSERT_PASS(result, msg) \
+    unittest_assert_pass((result), (msg), __LINE__, __FILE__)
+
+#define UNITTEST_BEGIN_TEST(class_name, method_name) \
+    UnittestTestResult_t *_unittest_result = unittest_test_result_create(class_name, method_name, __LINE__, __FILE__); \
+    double _unittest_start_time = unittest_get_time_ms();
+
+#define UNITTEST_END_TEST() \
+    _unittest_result->execution_time_ms = unittest_get_time_ms() - _unittest_start_time; \
+    if (_unittest_result->result_type == UNITTEST_PASS) { \
+        for (size_t i = 0; i < _unittest_result->assertion_count; i++) { \
+            if (!_unittest_result->assertions[i]->passed) { \
+                _unittest_result->result_type = UNITTEST_FAIL; \
+                break; \
+            } \
+        } \
+    } \
+    return _unittest_result;
+
+#define UNITTEST_SKIP(reason) \
+    (void)_unittest_start_time; \
+    unittest_test_result_set_skip(_unittest_result, reason); \
+    return _unittest_result;
+
+#endif