Fatal error: Uncaught Error: Class "Tests\TestCase" not found in /home/educhxio/public_html/Dawnpharma2/tests/Feature/PlatformAdminToolsTest.php:21 Stack trace: #0 {main} thrown in /home/educhxio/public_html/Dawnpharma2/tests/Feature/PlatformAdminToolsTest.php on line 21