public function testNestedReference()
{
$test = new Hierarchy('Root');
$child1 = $test->addChild('Child 1');
$child2 = $test->addChild('Child 2');
$this->dm->persist($child1);
$this->dm->persist($child2);
$this->dm->persist($test);
$this->dm->flush();
$this->dm->clear();
$test = $this->dm->getRepository(__NAMESPACE__ . '\\Hierarchy')->findOneBy(array('name' => 'Root'));
$this->assertNotNull($test);
$child1 = $test->getChild('Child 1')->setName('Child 1 Changed');
$child2 = $test->getChild('Child 2')->setName('Child 2 Changed');
$test->setName('Root Changed');
$child3 = $test->addChild('Child 3');
$this->dm->persist($child3);
$this->dm->flush();
$this->dm->clear();
$test = $this->dm->find(__NAMESPACE__ . '\\Hierarchy', $test->getId());
$this->assertNotNull($test);
$this->assertEquals('Root Changed', $test->getName());
$this->assertEquals('Child 1 Changed', $test->getChild(0)->getName());
$this->assertEquals('Child 2 Changed', $test->getChild(1)->getName());
$child3 = $this->dm->getRepository(__NAMESPACE__ . '\\Hierarchy')->findOneBy(array('name' => 'Child 3'));
$this->assertNotNull($child3);
$child3->setName('Child 3 Changed');
$this->dm->flush();
$child3 = $this->dm->getRepository(__NAMESPACE__ . '\\Hierarchy')->findOneBy(array('name' => 'Child 3 Changed'));
$this->assertNotNull($child3);
$this->assertEquals('Child 3 Changed', $child3->getName());
$test = $this->dm->getDocumentCollection(__NAMESPACE__ . '\\Hierarchy')->findOne(array('name' => 'Child 1 Changed'));
$this->assertFalse(isset($test['children']), 'Test empty array is not stored');
}
