Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/softsuitetech/public_html/DEMO/rtmas-api/vendor/laravel/framework/src/Illuminate/Foundation/Testing/TestCase.php:16 Stack trace: #0 {main} thrown in /home/softsuitetech/public_html/DEMO/rtmas-api/vendor/laravel/framework/src/Illuminate/Foundation/Testing/TestCase.php on line 16