Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/cooplafobq/newplanning/vendor/knpuniversity/oauth2-client-bundle/tests/Client/OAuth2ClientTest.php:21 Stack trace: #0 {main} thrown in /home/cooplafobq/newplanning/vendor/knpuniversity/oauth2-client-bundle/tests/Client/OAuth2ClientTest.php on line 21