Doctrine\ODM\MongoDB\Mapping\ClassMetadataFactory::setDocumentManager PHP Method

    public function setDocumentManager(DocumentManager $dm)
    {
        $this->dm = $dm;
    }

 public function setUp()
 {
     parent::setUp();
     $this->factory = new ClassMetadataFactory();
     $this->factory->setDocumentManager($this->dm);
     $this->factory->setConfiguration($this->dm->getConfiguration());
 }