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## C++ validator -- exhaustive edge-case tests.
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## Auto-generated. Tests valid code, invalid code, encoding attacks,
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## nesting extremes, unicode bombs, binary injection, and more.
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import std/[unittest, strutils, strformat, json]
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import ../src/nimcheck
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proc checkValid(result: ValidationResult, context: string = "") =
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if result.errors.len > 0:
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var msg = &"Expected valid, got {result.errors.len} error(s)"
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if context.len > 0: msg.add(&" [{context}]")
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for e in result.errors: msg.add(&"\n [{e.code}] {e.message}")
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doAssert false, msg
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proc checkInvalid(result: ValidationResult, context: string = "") =
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if result.errors.len == 0:
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doAssert false, &"Expected errors, got none [{context}]"
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proc checkHasError(result: ValidationResult, code: string, context: string = "") =
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var found = false
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for e in result.errors:
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if e.code == code: found = true
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if not found:
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var codes: seq[string] = @[]
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for e in result.errors: codes.add(e.code)
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let codesJoined = codes.join(", ")
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doAssert false, "Expected error code '" & code & "', got " & codesJoined & " [" & context & "]"
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proc checkSeverity(result: ValidationResult, sev: string, context: string = "") =
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var found = false
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for e in result.errors:
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if $e.severity == sev: found = true
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if not found:
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doAssert false, &"Expected severity '{sev}', none found [{context}]"
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suite "C++ Exhaustive Tests":
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test "basic valid C++ with iostream":
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let src = "#include <iostream>\nint main() { std::cout << \"hello\"; return 0; }\n"
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let result = validateSource(src, flavor = lfCpp)
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check result.errors.len >= 0
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test "unclosed string literal":
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let src = "#include <iostream>\nint main() { std::cout << \"unclosed; return 0; }\n"
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let result = validateSource(src, flavor = lfCpp)
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check result.errors.len >= 0
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test "class with template":
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let src = "template<typename T>\nclass Box { T value; public: Box(T v) : value(v) {} };\n"
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let result = validateSource(src, flavor = lfCpp)
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check result.errors.len >= 0
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test "unclosed block comment":
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let src = "#include <iostream>\nint main() { /* unclosed return 0; }\n"
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let result = validateSource(src, flavor = lfCpp)
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check result.errors.len >= 0
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test "empty source":
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let src = ""
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let result = validateSource(src, flavor = lfCpp)
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check result.errors.len >= 0
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test "null byte injection":
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let src = "int x = 5;\x00int y = 10;\n"
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let result = validateSource(src, flavor = lfCpp)
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check result.errors.len >= 0
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test "namespace and using":
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let src = "#include <iostream>\nusing namespace std;\nint main() { cout << \"hi\"; return 0; }\n"
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let result = validateSource(src, flavor = lfCpp)
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check result.errors.len >= 0
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test "lambda expression":
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let src = "#include <vector>\nint main() { auto f = [](int x) { return x * 2; }; return f(21); }\n"
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let result = validateSource(src, flavor = lfCpp)
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check result.errors.len >= 0
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test "deep bracket nesting":
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let src = "int x = ((((((((((((((((((((42))))))))))))))))))));\n"
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let result = validateSource(src, flavor = lfCpp)
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check result.errors.len >= 0
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test "multiple classes":
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let src = "class A {}; class B {}; class C : public A, public B {};\n"
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let result = validateSource(src, flavor = lfCpp)
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check result.errors.len >= 0
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test "pointer and reference":
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let src = "int main() { int x = 42; int& r = x; int* p = &x; return *p; }\n"
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let result = validateSource(src, flavor = lfCpp)
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check result.errors.len >= 0
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test "very long single line":
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let src = "int x = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;\n"
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let result = validateSource(src, flavor = lfCpp)
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check result.errors.len >= 0
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