Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/app/htdocs/ninja/vendor/laravel/framework/src/Illuminate/Foundation/Testing/TestCase.php:12
Stack trace:
#0 {main}
thrown in /home/app/htdocs/ninja/vendor/laravel/framework/src/Illuminate/Foundation/Testing/TestCase.php on line 12