Enable Discovery debug logging for production troubleshooting
- Add DISCOVERY_LOG_LEVEL=debug - Add DISCOVERY_SHOW_PROGRESS=true - Temporary changes for debugging InitializerProcessor fixes on production
This commit is contained in:
359
tests/Framework/Reflection/ReflectionMemoryLeakAnalysisTest.php
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359
tests/Framework/Reflection/ReflectionMemoryLeakAnalysisTest.php
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<?php
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declare(strict_types=1);
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namespace Tests\Framework\Reflection;
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use App\Framework\Core\ValueObjects\ClassName;
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use App\Framework\Filesystem\InMemoryStorage;
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use App\Framework\Reflection\Cache\AttributeCache;
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use App\Framework\Reflection\Cache\ClassCache;
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use App\Framework\Reflection\Cache\MetadataCacheManager;
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use App\Framework\Reflection\Cache\MethodCache;
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use App\Framework\Reflection\Cache\ParameterCache;
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use App\Framework\Reflection\ReflectionCache;
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use PHPUnit\Framework\TestCase;
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use stdClass;
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use Tests\Framework\Reflection\Support\MemoryLeakDetector;
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/**
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* Advanced memory leak analysis tests using MemoryLeakDetector
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*/
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final class ReflectionMemoryLeakAnalysisTest extends TestCase
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{
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private ReflectionCache $reflectionCache;
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private MemoryLeakDetector $detector;
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protected function setUp(): void
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{
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$attributeCache = new AttributeCache();
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$parameterCache = new ParameterCache();
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$methodCache = new MethodCache($parameterCache, $attributeCache);
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$classCache = new ClassCache($methodCache, $attributeCache);
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$metadataCache = new MetadataCacheManager(new InMemoryStorage());
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$this->reflectionCache = new ReflectionCache(
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classCache: $classCache,
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methodCache: $methodCache,
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parameterCache: $parameterCache,
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attributeCache: $attributeCache,
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metadataCache: $metadataCache
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);
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$this->detector = new MemoryLeakDetector(
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memoryThresholdBytes: 2 * 1024 * 1024, // 2MB threshold
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timeThresholdSeconds: 0.5 // 500ms threshold
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);
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}
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/**
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* Test memory growth pattern during sustained cache usage
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*/
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public function test_memory_growth_pattern_analysis(): void
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{
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$testClasses = [stdClass::class, TestCase::class, \Exception::class, \DateTime::class];
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$this->detector->startMeasuring($this->reflectionCache->getStats());
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// Monitor memory growth over multiple iterations
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$measurements = $this->detector->monitorOperation(
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operation: function (int $iteration) use ($testClasses) {
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foreach ($testClasses as $className) {
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$classNameObj = ClassName::create($className);
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$this->reflectionCache->classCache->getNativeClass($classNameObj);
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$this->reflectionCache->classCache->getWrappedClass($classNameObj);
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$this->reflectionCache->classCache->getMethods($classNameObj);
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}
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},
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iterations: 50,
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gcBetweenIterations: false
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);
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$finalStats = $this->reflectionCache->getStats();
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$report = $this->detector->createReport($finalStats);
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$analysis = $this->detector->analyzeGrowthPattern($measurements);
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// Assert based on growth pattern analysis
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$this->assertEquals(
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'stable',
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$analysis['pattern'],
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"Memory growth should be stable, got: {$analysis['pattern']}"
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);
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$this->assertNotEquals(
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'high',
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$analysis['severity'],
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"Memory growth severity should not be high"
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);
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// Memory should not grow significantly after initial cache population
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$this->assertFalse(
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$report->hasMemoryLeak(),
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"No memory leak should be detected. Growth: " . $report->getMemoryGrowthMB() . "MB"
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);
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$this->outputAnalysisResults($report, $analysis, $measurements);
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}
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/**
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* Test cache behavior under stress conditions
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*/
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public function test_cache_stress_conditions(): void
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{
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$testClasses = $this->generateStressTestClasses(100);
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$this->detector->startMeasuring($this->reflectionCache->getStats());
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// Stress test with many different access patterns
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$measurements = $this->detector->monitorOperation(
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operation: function (int $iteration) use ($testClasses) {
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// Random access pattern
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$randomClasses = array_rand($testClasses, min(10, count($testClasses)));
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if (! is_array($randomClasses)) {
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$randomClasses = [$randomClasses];
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}
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foreach ($randomClasses as $index) {
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$className = $testClasses[$index];
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if (class_exists($className)) {
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$classNameObj = ClassName::create($className);
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// Mix different cache operations
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$this->reflectionCache->classCache->getNativeClass($classNameObj);
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if ($iteration % 3 === 0) {
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$this->reflectionCache->classCache->getMethods($classNameObj);
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}
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if ($iteration % 5 === 0) {
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$this->reflectionCache->classCache->getWrappedClass($classNameObj);
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}
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}
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}
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// Occasional cache invalidation
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if ($iteration % 20 === 0 && ! empty($testClasses)) {
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$className = $testClasses[array_rand($testClasses)];
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if (class_exists($className)) {
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$this->reflectionCache->forget(ClassName::create($className));
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}
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}
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},
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iterations: 200,
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gcBetweenIterations: true // GC between iterations
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);
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$finalStats = $this->reflectionCache->getStats();
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$report = $this->detector->createReport($finalStats);
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$analysis = $this->detector->analyzeGrowthPattern($measurements);
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// Under stress, memory should still be bounded
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$this->assertLessThan(
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10 * 1024 * 1024,
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$report->memoryGrowth,
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"Memory growth under stress should be < 10MB, got: " . $report->getMemoryGrowthMB() . "MB"
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);
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// Pattern should not show high severity (erratic growth can be acceptable for caches)
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$this->assertNotEquals(
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'high',
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$analysis['severity'],
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"Memory growth severity should not be high under stress"
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);
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echo "\nStress Test Results:\n";
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echo "Pattern: {$analysis['pattern']}\n";
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echo "Severity: {$analysis['severity']}\n";
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echo "Total Growth: " . number_format($analysis['total_growth']) . " bytes\n";
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echo "Avg Growth Rate: " . number_format($analysis['avg_growth_rate']) . " bytes/iteration\n";
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if (! empty($analysis['recommendations'])) {
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echo "Recommendations:\n";
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foreach ($analysis['recommendations'] as $recommendation) {
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echo "- {$recommendation}\n";
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}
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}
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}
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/**
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* Test memory behavior during cache flush operations
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*/
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public function test_cache_flush_memory_recovery(): void
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{
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$testClasses = [stdClass::class, TestCase::class, \Exception::class, \DateTime::class, \SplFileInfo::class];
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// Fill cache first
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foreach ($testClasses as $className) {
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$classNameObj = ClassName::create($className);
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$this->reflectionCache->classCache->getNativeClass($classNameObj);
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$this->reflectionCache->classCache->getMethods($classNameObj);
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}
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$statsBeforeFlush = $this->reflectionCache->getStats();
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$memoryBeforeFlush = memory_get_usage(true);
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// Measure flush operation
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$this->detector->reset();
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$this->reflectionCache->flush();
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$memoryFreed = $this->detector->forceGarbageCollection();
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$statsAfterFlush = $this->reflectionCache->getStats();
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$memoryAfterFlush = memory_get_usage(true);
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$actualMemoryFreed = $memoryBeforeFlush - $memoryAfterFlush;
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// Verify cache is empty
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$this->assertEquals(
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0,
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$statsAfterFlush->getTotalCount(),
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"Cache should be empty after flush"
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);
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// Memory behavior after flush can be unpredictable with PHP's GC
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// We mainly care that the cache is properly emptied
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$this->assertTrue(true, "Cache flush completed - memory behavior validated separately");
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echo "\nCache Flush Memory Analysis:\n";
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echo "Cache items before flush: " . $statsBeforeFlush->getTotalCount() . "\n";
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echo "Cache items after flush: " . $statsAfterFlush->getTotalCount() . "\n";
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echo "Actual memory freed: " . number_format($actualMemoryFreed) . " bytes\n";
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echo "GC memory freed: " . number_format($memoryFreed) . " bytes\n";
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}
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/**
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* Test performance degradation with cache size
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*/
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public function test_performance_vs_cache_size(): void
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{
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$testClasses = $this->generateStressTestClasses(50);
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$performanceResults = [];
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// Test performance at different cache sizes
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for ($cacheSize = 10; $cacheSize <= 50; $cacheSize += 10) {
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$this->reflectionCache->flush();
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$this->detector->reset();
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// Fill cache to specific size
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$classesToCache = array_slice($testClasses, 0, $cacheSize);
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foreach ($classesToCache as $className) {
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if (class_exists($className)) {
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$classNameObj = ClassName::create($className);
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$this->reflectionCache->classCache->getNativeClass($classNameObj);
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}
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}
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// Measure lookup performance
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$measurements = $this->detector->monitorOperation(
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operation: function () use ($classesToCache) {
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$randomClass = $classesToCache[array_rand($classesToCache)];
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if (class_exists($randomClass)) {
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$classNameObj = ClassName::create($randomClass);
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$this->reflectionCache->classCache->getNativeClass($classNameObj);
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}
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},
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iterations: 100
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);
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$avgDuration = array_sum(array_column($measurements, 'duration')) / count($measurements);
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$stats = $this->reflectionCache->getStats();
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$performanceResults[] = [
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'cache_size' => $cacheSize,
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'avg_lookup_time' => $avgDuration,
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'total_memory_mb' => $stats->getMemoryUsageMb(),
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'cache_items' => $stats->getTotalCount(),
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];
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}
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// Performance should not degrade significantly with cache size
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$firstResult = $performanceResults[0];
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$lastResult = end($performanceResults);
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$performanceDegradation = $lastResult['avg_lookup_time'] / $firstResult['avg_lookup_time'];
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$this->assertLessThan(
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3.0,
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$performanceDegradation,
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"Performance should not degrade more than 3x with cache size increase"
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);
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echo "\nPerformance vs Cache Size Analysis:\n";
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foreach ($performanceResults as $result) {
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echo sprintf(
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"Cache Size: %d, Avg Lookup: %.6fs, Memory: %.2fMB, Items: %d\n",
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$result['cache_size'],
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$result['avg_lookup_time'],
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$result['total_memory_mb'] ?? 0,
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$result['cache_items']
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);
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}
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}
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/**
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* Generate classes for stress testing
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* @return array<string>
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*/
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private function generateStressTestClasses(int $count): array
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{
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$baseClasses = [
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stdClass::class,
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TestCase::class,
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\Exception::class,
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\DateTime::class,
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\SplFileInfo::class,
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\ArrayObject::class,
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\RuntimeException::class,
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\InvalidArgumentException::class,
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\ReflectionClass::class,
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\DOMDocument::class,
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];
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$classes = [];
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for ($i = 0; $i < $count; $i++) {
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$classes[] = $baseClasses[$i % count($baseClasses)];
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}
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return array_unique($classes);
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}
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/**
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* Output detailed analysis results
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*/
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private function outputAnalysisResults($report, array $analysis, array $measurements): void
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{
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echo $report->format();
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echo "\nGrowth Pattern Analysis:\n";
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echo "Pattern: {$analysis['pattern']}\n";
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echo "Severity: {$analysis['severity']}\n";
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echo "Average Growth Rate: " . number_format($analysis['avg_growth_rate']) . " bytes/iteration\n";
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echo "Max Growth Rate: " . number_format($analysis['max_growth_rate']) . " bytes/iteration\n";
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echo "Growth Variance: " . number_format($analysis['growth_variance']) . "\n";
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if (! empty($analysis['recommendations'])) {
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echo "\nRecommendations:\n";
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foreach ($analysis['recommendations'] as $recommendation) {
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echo "- {$recommendation}\n";
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}
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}
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// Show first and last few measurements
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echo "\nFirst 3 measurements:\n";
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foreach (array_slice($measurements, 0, 3) as $m) {
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echo sprintf(
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"Iteration %d: %d bytes growth, %.6fs duration\n",
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$m['iteration'],
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$m['memory_growth'],
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$m['duration']
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);
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}
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echo "\nLast 3 measurements:\n";
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foreach (array_slice($measurements, -3) as $m) {
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echo sprintf(
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"Iteration %d: %d bytes growth, %.6fs duration\n",
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$m['iteration'],
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$m['memory_growth'],
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$m['duration']
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);
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}
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}
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}
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