public function setUp()
{
$config = new Configuration();
$config->setProxyDir(__DIR__ . '/../../../../../Proxies');
$config->setProxyNamespace('Proxies');
$config->setEnvironment('test');
$config->setDefaultDB($this->defaultDB);
$reader = new AnnotationReader();
$reader->setDefaultAnnotationNamespace('Doctrine\\ODM\\MongoDB\\Mapping\\');
$config->setMetadataDriverImpl(new AnnotationDriver($reader, __DIR__ . '/Documents'));
$this->dm = DocumentManager::create(new Mongo(), $config);
}