Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/sizehizmet/public_html/vendor/symfony/debug-bundle/Tests/DependencyInjection/DebugExtensionTest.php:19 Stack trace: #0 {main} thrown in /home/sizehizmet/public_html/vendor/symfony/debug-bundle/Tests/DependencyInjection/DebugExtensionTest.php on line 19