Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/b2bwebnexxonro/digital-be/vendor/maennchen/zipstream-php/test/CallbackOutputTest.php:13 Stack trace: #0 {main} thrown in /home/b2bwebnexxonro/digital-be/vendor/maennchen/zipstream-php/test/CallbackOutputTest.php on line 13