Fatal error: Uncaught Error: Class "ilMathJaxBaseTestCase" not found in /var/www/html/ilias/components/ILIAS/MathJax/tests/ilMathJaxTest.php:24 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/MathJax/tests/ilMathJaxTest.php on line 24