Fatal error: Uncaught Error: Class "Yajra\DataTables\Tests\TestCase" not found in C:\xampp\htdocs\r10ca\vendor\yajra\laravel-datatables-oracle\tests\Integration\HasOneRelationTest.php:11 Stack trace: #0 {main} thrown in C:\xampp\htdocs\r10ca\vendor\yajra\laravel-datatables-oracle\tests\Integration\HasOneRelationTest.php on line 11