Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/eberhardschwarze/public_html/vendor/contao/calendar-bundle/tests/DependencyInjection/ContaoCalendarExtensionTest.php:30 Stack trace: #0 {main} thrown in /home/eberhardschwarze/public_html/vendor/contao/calendar-bundle/tests/DependencyInjection/ContaoCalendarExtensionTest.php on line 30