Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\xampp\htdocs\orus\vendor\phpro\soap-client\test\PhproTest\SoapClient\Unit\Event\ResponseEventTest.php:16 Stack trace: #0 {main} thrown in C:\xampp\htdocs\orus\vendor\phpro\soap-client\test\PhproTest\SoapClient\Unit\Event\ResponseEventTest.php on line 16