public function testResultContainsObjectStateGroupAttributes($result)
{
$this->assertXMLTag(array('tag' => 'ObjectStateGroup', 'attributes' => array('media-type' => 'application/vnd.ez.api.ObjectStateGroup+xml', 'href' => '/content/objectstategroups/42')), $result, 'Invalid <ObjectStateGroup> attributes.', false);
}