Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /var/www/html/ilias/components/ILIAS/Refinery/tests/In/Transformation/ParallelTest.php:32 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Refinery/tests/In/Transformation/ParallelTest.php on line 32