Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /var/www/apache/dev/cal/web/vendor/symfony/security/Guard/Tests/GuardAuthenticatorHandlerTest.php:22 Stack trace: #0 {main} thrown in /var/www/apache/dev/cal/web/vendor/symfony/security/Guard/Tests/GuardAuthenticatorHandlerTest.php on line 22