Fatal error: Uncaught Error: Class "Tests\TestCase" not found in /home/educhxio/public_html/Dawnpharma2/tests/Feature/DemoSeederTest.php:20 Stack trace: #0 {main} thrown in /home/educhxio/public_html/Dawnpharma2/tests/Feature/DemoSeederTest.php on line 20