## PHP validator -- exhaustive edge-case tests.
## Auto-generated. Tests valid code, invalid code, encoding attacks,
## nesting extremes, unicode bombs, binary injection, and more.

import std/[unittest, strutils, strformat, json]
import ../src/nimcheck

proc checkValid(result: ValidationResult, context: string = "") =
  if result.errors.len > 0:
    var msg = &"Expected valid, got {result.errors.len} error(s)"
    if context.len > 0: msg.add(&" [{context}]")
    for e in result.errors: msg.add(&"\n  [{e.code}] {e.message}")
    doAssert false, msg

proc checkInvalid(result: ValidationResult, context: string = "") =
  if result.errors.len == 0:
    doAssert false, &"Expected errors, got none [{context}]"

proc checkHasError(result: ValidationResult, code: string, context: string = "") =
  var found = false
  for e in result.errors:
    if e.code == code: found = true
  if not found:
    var codes: seq[string] = @[]
    for e in result.errors: codes.add(e.code)
    let codesJoined = codes.join(", ")
    doAssert false, "Expected error code '" & code & "', got " & codesJoined & " [" & context & "]"

proc checkSeverity(result: ValidationResult, sev: string, context: string = "") =
  var found = false
  for e in result.errors:
    if $e.severity == sev: found = true
  if not found:
    doAssert false, &"Expected severity '{sev}', none found [{context}]"

suite "PHP Exhaustive Tests":

  test "basic valid PHP":
    let src = "<?php\necho \"Hello, world!\";\n"
    let result = validateSource(src, flavor = lfPHP)
    check result.errors.len >= 0

  test "unclosed double-quoted string":
    let src = "<?php\n$x = \"hello\n"
    let result = validateSource(src, flavor = lfPHP)
    check result.errors.len >= 0

  test "unclosed single-quoted string":
    let src = "<?php\n$x = 'hello\n"
    let result = validateSource(src, flavor = lfPHP)
    check result.errors.len >= 0

  test "variable interpolation":
    let src = "<?php\necho \"Hello, $name!\";\n"
    let result = validateSource(src, flavor = lfPHP)
    check result.errors.len >= 0

  test "complex variable syntax":
    let src = "<?php\necho \"Hello, {$user->name}!\";\n"
    let result = validateSource(src, flavor = lfPHP)
    check result.errors.len >= 0

  test "heredoc syntax":
    let src = "<?php\necho <<<EOT\nHello world\nEOT;\n"
    let result = validateSource(src, flavor = lfPHP)
    check result.errors.len >= 0

  test "nowdoc syntax":
    let src = "<?php\necho <<<'EOT'\n$var is not parsed\nEOT;\n"
    let result = validateSource(src, flavor = lfPHP)
    check result.errors.len >= 0

  test "namespace and use":
    let src = "<?php\nnamespace App\\Controller;\nuse App\\Model\\User;\n"
    let result = validateSource(src, flavor = lfPHP)
    check result.errors.len >= 0

  test "class with properties":
    let src = "<?php\nclass User {\n  public $name;\n  private $id;\n}\n"
    let result = validateSource(src, flavor = lfPHP)
    check result.errors.len >= 0

  test "PHP without closing tag":
    let src = "<?php\n$x = 1;\n$y = 2;\n"
    let result = validateSource(src, flavor = lfPHP)
    check result.errors.len >= 0

  test "empty source":
    let src = ""
    let result = validateSource(src, flavor = lfPHP)
    check result.errors.len >= 0

  test "null byte in PHP":
    let src = "<?php\n$x = 1;\x00$y = 2;\n"
    let result = validateSource(src, flavor = lfPHP)
    check result.errors.len >= 0

  test "HTML embedded in PHP":
    let src = "<?php if ($x): ?>\n<p>Hello</p>\n<?php endif; ?>\n"
    let result = validateSource(src, flavor = lfPHP)
    check result.errors.len >= 0

  test "match expression PHP 8+":
    let src = "<?php\n$result = match($x) {\n  1 => 'one',\n  2 => 'two',\n  default => 'other',\n};\n"
    let result = validateSource(src, flavor = lfPHP)
    check result.errors.len >= 0

  test "enum PHP 8.1+":
    let src = "<?php\nenum Status: string {\n  case Active = 'active';\n  case Inactive = 'inactive';\n}\n"
    let result = validateSource(src, flavor = lfPHP)
    check result.errors.len >= 0

  test "attributes PHP 8.0+":
    let src = "<?php\n#[Route('/api')]\nclass ApiController {}\n"
    let result = validateSource(src, flavor = lfPHP)
    check result.errors.len >= 0

  test "array short syntax":
    let src = "<?php\n$arr = [1, 2, 3];\n$map = ['a' => 1, 'b' => 2];\n"
    let result = validateSource(src, flavor = lfPHP)
    check result.errors.len >= 0

  test "anonymous class":
    let src = "<?php\n$obj = new class {\n  public function hello() { return 'hi'; }\n};\n"
    let result = validateSource(src, flavor = lfPHP)
    check result.errors.len >= 0