Fatal error: Uncaught Error: Class "Tests\TestCase" not found in /home/crmcodingobjects/public_html/modules/Core/Tests/Feature/Controller/Api/Resource/EmailSearchControllerTest.php:18 Stack trace: #0 {main} thrown in /home/crmcodingobjects/public_html/modules/Core/Tests/Feature/Controller/Api/Resource/EmailSearchControllerTest.php on line 18