Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/cacart/techapp.cacart.ca/backend/tests/Unit/Support/EmailNormalizerTest.php:8 Stack trace: #0 {main} thrown in /home/cacart/techapp.cacart.ca/backend/tests/Unit/Support/EmailNormalizerTest.php on line 8