Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/wwtrac/public_html/smnyct/servicios/vendor/laravel/lumen-framework/src/Testing/TestCase.php:13 Stack trace: #0 {main} thrown in /home/wwtrac/public_html/smnyct/servicios/vendor/laravel/lumen-framework/src/Testing/TestCase.php on line 13