Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /var/www/apache/dev/cal/tests/AgenDAV/Sharing/SharingResolverTest.php:8 Stack trace: #0 {main} thrown in /var/www/apache/dev/cal/tests/AgenDAV/Sharing/SharingResolverTest.php on line 8