Fatal error: Uncaught Error: Class "Google\Cloud\Core\Testing\Snippet\SnippetTestCase" not found in D:\xampp\htdocs\SSWPOS\vendor\google\cloud-core\tests\Snippet\LongRunning\LongRunningOperationTest.php:31 Stack trace: #0 {main} thrown in D:\xampp\htdocs\SSWPOS\vendor\google\cloud-core\tests\Snippet\LongRunning\LongRunningOperationTest.php on line 31