Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\SHC\xampp\htdocs\shc_mobile_backend\vendor\diablomedia\zendframework1-mime\tests\Zend\Mime\PartTest.php:32 Stack trace: #0 {main} thrown in C:\SHC\xampp\htdocs\shc_mobile_backend\vendor\diablomedia\zendframework1-mime\tests\Zend\Mime\PartTest.php on line 32