Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/devypfrfhn/med-hub.devyp.fr/vendor/symfony/event-dispatcher/Tests/GenericEventTest.php:20 Stack trace: #0 {main} thrown in /home/devypfrfhn/med-hub.devyp.fr/vendor/symfony/event-dispatcher/Tests/GenericEventTest.php on line 20