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