Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/ramassof/backup.ramas.dev/vendor/guzzlehttp/guzzle/tests/Handler/ClockTest.php:10 Stack trace: #0 {main} thrown in /home/ramassof/backup.ramas.dev/vendor/guzzlehttp/guzzle/tests/Handler/ClockTest.php on line 10