Fatal error: Uncaught Error: Class 'Illuminate\Tests\Integration\Database\DatabaseTestCase' not found in /data/htmlwww/wookteam/vendor/laravel/framework/tests/Integration/Database/EloquentMorphConstrainTest.php:11 Stack trace: #0 {main} thrown in /data/htmlwww/wookteam/vendor/laravel/framework/tests/Integration/Database/EloquentMorphConstrainTest.php on line 11