Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/app/htdocs/truebits.docker.installations/invoice-crater/docker-bk/crater/vendor/maennchen/zipstream-php/test/BigintTest.php:10 Stack trace: #0 {main} thrown in /home/app/htdocs/truebits.docker.installations/invoice-crater/docker-bk/crater/vendor/maennchen/zipstream-php/test/BigintTest.php on line 10