Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in C:\xampp\htdocs\ApiSigestWin\vendor\willdurand\jsonp-callback-validator\tests\JsonpCallbackValidatorTest.php:3 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ApiSigestWin\vendor\willdurand\jsonp-callback-validator\tests\JsonpCallbackValidatorTest.php on line 3