public function testShouldNotSaveUnchanged()
{
$listener = new PreUpdateSubscriber();
$this->dm->getEventManager()->addEventListener('preUpdate', $listener);
$user = $this->dm->find('Doctrine\\Tests\\Models\\CMS\\CmsUser', $this->userId);
$this->assertInstanceOf('\\Doctrine\\Tests\\Models\\CMS\\CmsAddress', $user->address);
$this->assertEquals('Hungary', $user->address->country);
$this->assertEquals('1122', $user->address->zip);
$this->assertEquals('Budapest', $user->address->city);
$this->dm->flush();
$this->assertEquals(0, count($listener->eventArgs));
}