Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in C:\xampp\htdocs\electronica\vendor\jms\di-extra-bundle\JMS\DiExtraBundle\Tests\PerformanceTest.php:36 Stack trace: #0 {main} thrown in C:\xampp\htdocs\electronica\vendor\jms\di-extra-bundle\JMS\DiExtraBundle\Tests\PerformanceTest.php on line 36