Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/appoint/public_html/booking/vendor/hanneskod/classtools/tests/IntegrationTest.php:5 Stack trace: #0 {main} thrown in /home/appoint/public_html/booking/vendor/hanneskod/classtools/tests/IntegrationTest.php on line 5