Fatal error: Uncaught Error: Class "Cake\TestSuite\TestCase" not found in C:\xampp\htdocs\QuickApps\tests\TestCase\Model\Behavior\SluggableBehaviorTest.php:23 Stack trace: #0 {main} thrown in C:\xampp\htdocs\QuickApps\tests\TestCase\Model\Behavior\SluggableBehaviorTest.php on line 23