public function test_render()
{
$collection = new Collection('test', $this->mockTypeFactory, array('is_child' => true));
$collection->addTypeName('test');
$collection->setRev('test:rev');
$parent = array('id' => 'parent_id', 'children' => array(array('id' => 'child1')));
$this->parentController->test = $collection;
$entity = $this->parentController->createWithObject($parent);
$this->assertEquals("<div xmlns:test=\"http://test.org/\" about=\"parent_id\"><div rev=\"test:rev\"><div about=\"child1\"></div>\n</div>\n</div>\n", $entity->render());
}