Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /Applications/MAMP/htdocs/munagsatcom2/vendor/psy/psysh/test/CodeCleanerTest.php:16 Stack trace: #0 {main} thrown in /Applications/MAMP/htdocs/munagsatcom2/vendor/psy/psysh/test/CodeCleanerTest.php on line 16