Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/bwcodersuj/infoprodukt/tests/AppBundle/Validation/MailValidationTest.php:9 Stack trace: #0 {main} thrown in /home/bwcodersuj/infoprodukt/tests/AppBundle/Validation/MailValidationTest.php on line 9