Fatal error: Uncaught Error: Class "Tests\TestCase" not found in /home/naisenterprises/erp.naisenterprises.com/laravel-realworld-example-app/tests/Feature/ArticleTest.php:9 Stack trace: #0 {main} thrown in /home/naisenterprises/erp.naisenterprises.com/laravel-realworld-example-app/tests/Feature/ArticleTest.php on line 9