Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/wallet/public_html/project/vendor/laravel/framework/src/Illuminate/Foundation/Testing/TestCase.php:21 Stack trace: #0 {main} thrown in /home/wallet/public_html/project/vendor/laravel/framework/src/Illuminate/Foundation/Testing/TestCase.php on line 21