Fatal error: Uncaught Error: Class "Tests\TestCase" not found in /home/startmine/api.startmine.info/vendor/imdhemy/google-play-billing/tests/Subscriptions/SubscriptionPurchaseTest.php:15 Stack trace: #0 {main} thrown in /home/startmine/api.startmine.info/vendor/imdhemy/google-play-billing/tests/Subscriptions/SubscriptionPurchaseTest.php on line 15