Fatal error: Uncaught Error: Class 'TestCase' not found in /home/devypfrfhn/brifault/vendor/rebing/graphql-laravel/tests/EndpointTest.php:6 Stack trace: #0 {main} thrown in /home/devypfrfhn/brifault/vendor/rebing/graphql-laravel/tests/EndpointTest.php on line 6