errorHandler = VErrorHandler::getInstance(); $this->originalErrorReporting = error_reporting(); // Set up test environment global $cfg; $cfg['debug_mode'] = false; // Test production mode } protected function tearDown(): void { // Restore original error reporting error_reporting($this->originalErrorReporting); } /** * Test error handler singleton pattern */ public function testSingletonPattern() { $handler1 = VErrorHandler::getInstance(); $handler2 = VErrorHandler::getInstance(); $this->assertSame($handler1, $handler2); } /** * Test error type detection */ public function testErrorTypeDetection() { // Test that error handler can be instantiated without errors $this->assertInstanceOf(VErrorHandler::class, $this->errorHandler); } /** * Test error logging functionality */ public function testErrorLogging() { // Test application error logging $this->errorHandler->logApplicationError('Test application error', ['test' => true]); // Test validation error logging $this->errorHandler->logValidationError('email', 'invalid-email', 'email_format', ['form' => 'registration']); // Test authentication error logging $this->errorHandler->logAuthError('Invalid credentials', 'testuser', ['ip' => '127.0.0.1']); // Verify no exceptions were thrown $this->assertTrue(true); } /** * Test error handling in production mode */ public function testProductionMode() { global $cfg; $cfg['debug_mode'] = false; // Create new instance to test production mode $handler = VErrorHandler::getInstance(); $this->assertInstanceOf(VErrorHandler::class, $handler); } /** * Test error handling in debug mode */ public function testDebugMode() { global $cfg; $cfg['debug_mode'] = true; // Create new instance to test debug mode $handler = VErrorHandler::getInstance(); $this->assertInstanceOf(VErrorHandler::class, $handler); } /** * Test error severity mapping */ public function testErrorSeverityMapping() { // Test different error severities are handled properly $severities = [ E_ERROR, E_WARNING, E_NOTICE, E_USER_ERROR, E_USER_WARNING, E_USER_NOTICE ]; foreach ($severities as $severity) { // Test that each severity can be processed $this->assertIsInt($severity); } $this->assertTrue(true); } /** * Test custom error contexts */ public function testCustomErrorContexts() { $contexts = [ ['user_id' => 123, 'action' => 'upload'], ['ip' => '192.168.1.1', 'user_agent' => 'Test Browser'], ['request_id' => 'req_123', 'session_id' => 'sess_456'] ]; foreach ($contexts as $context) { $this->errorHandler->logApplicationError('Test error with context', $context); } $this->assertTrue(true); } /** * Test error message sanitization */ public function testErrorMessageSanitization() { $maliciousMessages = [ 'Error with ', 'Database error: SELECT * FROM users WHERE password = "secret"', 'Path traversal: ../../../etc/passwd' ]; foreach ($maliciousMessages as $message) { $this->errorHandler->logApplicationError($message); } // Verify no exceptions were thrown $this->assertTrue(true); } /** * Test error rate limiting */ public function testErrorRateLimiting() { // Log multiple similar errors rapidly for ($i = 0; $i < 10; $i++) { $this->errorHandler->logApplicationError('Repeated error message'); } // Verify system handles repeated errors gracefully $this->assertTrue(true); } /** * Test memory usage during error handling */ public function testMemoryUsageDuringErrorHandling() { $initialMemory = memory_get_usage(); // Generate multiple errors for ($i = 0; $i < 100; $i++) { $this->errorHandler->logApplicationError("Memory test error {$i}"); } $finalMemory = memory_get_usage(); // Verify memory usage didn't grow excessively $memoryIncrease = $finalMemory - $initialMemory; $this->assertLessThan(10 * 1024 * 1024, $memoryIncrease); // Less than 10MB increase } /** * Test error handling with invalid data */ public function testErrorHandlingWithInvalidData() { // Test with null values $this->errorHandler->logApplicationError(null); // Test with empty strings $this->errorHandler->logApplicationError(''); // Test with very long messages $longMessage = str_repeat('A', 10000); $this->errorHandler->logApplicationError($longMessage); // Test with special characters $specialMessage = "Error with unicode: 世界 and emojis: 🚨"; $this->errorHandler->logApplicationError($specialMessage); $this->assertTrue(true); } /** * Test concurrent error handling */ public function testConcurrentErrorHandling() { // Simulate concurrent errors for ($i = 0; $i < 50; $i++) { $this->errorHandler->logApplicationError("Concurrent error {$i}"); $this->errorHandler->logValidationError("field{$i}", "value{$i}", 'required'); $this->errorHandler->logAuthError("Auth error {$i}", "user{$i}"); } $this->assertTrue(true); } }