Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\Apache24\htdocs\laravelcurso\vendor\psy\psysh\test\Command\ExitCommandTest.php:17 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\laravelcurso\vendor\psy\psysh\test\Command\ExitCommandTest.php on line 17