muzich/vendor/jms/di-extra-bundle/JMS/DiExtraBundle/Tests/bootstrap.php

<?php

use Doctrine\Common\Annotations\AnnotationRegistry;

// Composer
if (file_exists(__DIR__.'/../vendor/autoload.php')) {
    $loader = require_once __DIR__.'/../vendor/autoload.php';

    AnnotationRegistry::registerLoader('class_exists');

    return $loader;
}

throw new \RuntimeException('Could not find vendor/autoload.php, make sure you ran composer.');