Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /var/www/html/innofly/preme-date-api/vendor/laravel/framework/src/Illuminate/Foundation/Testing/TestCase.php:9 Stack trace: #0 {main} thrown in /var/www/html/innofly/preme-date-api/vendor/laravel/framework/src/Illuminate/Foundation/Testing/TestCase.php on line 9