Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/eberhardschwarze/public_html/vendor/contao/calendar-bundle/tests/Picker/EventPickerProviderTest.php:27 Stack trace: #0 {main} thrown in /home/eberhardschwarze/public_html/vendor/contao/calendar-bundle/tests/Picker/EventPickerProviderTest.php on line 27