Fatal error: Uncaught Error: Class "ViewControlTestBase" not found in /var/www/html/ilias/components/ILIAS/UI/tests/Component/Input/ViewControl/ViewControlGroupTest.php:28 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/UI/tests/Component/Input/ViewControl/ViewControlGroupTest.php on line 28