Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/yrdsb11w3creativ/public_html/yrdsb/vendor/symfony/event-dispatcher/Tests/EventTest.php:20 Stack trace: #0 {main} thrown in /home/yrdsb11w3creativ/public_html/yrdsb/vendor/symfony/event-dispatcher/Tests/EventTest.php on line 20