Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\xampp\htdocs\UP_Distribution\pds_fci_up\vendor\maennchen\zipstream-php\test\ZipStreamTest.php:19 Stack trace: #0 {main} thrown in C:\xampp\htdocs\UP_Distribution\pds_fci_up\vendor\maennchen\zipstream-php\test\ZipStreamTest.php on line 19