Fatal error: Uncaught Error: Class "Lauthz\Tests\TestCase" not found in D:\Apache24\www\lupin\back-end\vendor\casbin\laravel-authz\tests\EnforcerMiddlewareTest.php:9 Stack trace: #0 {main} thrown in D:\Apache24\www\lupin\back-end\vendor\casbin\laravel-authz\tests\EnforcerMiddlewareTest.php on line 9