Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in D:\xampp\htdocs\pimcore\my-project\vendor\willdurand\jsonp-callback-validator\tests\JsonpCallbackValidatorTest.php:5 Stack trace: #0 {main} thrown in D:\xampp\htdocs\pimcore\my-project\vendor\willdurand\jsonp-callback-validator\tests\JsonpCallbackValidatorTest.php on line 5