Doctrine\ORM\EntityManager::close PHP Method

    public function close()
    {
        $this->clear();
        $this->closed = true;
    }

 /**
  * {@inheritDoc}
  */
 protected function tearDown()
 {
     parent::tearDown();
     if ($this->em instanceof \Doctrine\ORM\EntityManager) {
         $this->em->close();
     }
 }