Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/palabrebel/www/kimai/tests/API/Serializer/ValidationFailedExceptionErrorHandlerTest.php:28 Stack trace: #0 {main} thrown in /home/palabrebel/www/kimai/tests/API/Serializer/ValidationFailedExceptionErrorHandlerTest.php on line 28