Fatal error: Uncaught Error: Class 'Tests\TestCase' not found in C:\xampp\htdocs\com.arbokcorp.app\tests\Feature\Ahp\ModClientTest.php:13 Stack trace: #0 {main} thrown in C:\xampp\htdocs\com.arbokcorp.app\tests\Feature\Ahp\ModClientTest.php on line 13