Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/galtechstudents/public_html/steffy/Laravel-Intro/example-app/tests/Unit/ExampleTest.php:7 Stack trace: #0 {main} thrown in /home/galtechstudents/public_html/steffy/Laravel-Intro/example-app/tests/Unit/ExampleTest.php on line 7