'``manifestation_path`` returns the path on the filesystem where the
given dataset exists.'

def test_manifestation_path(self):

    identifier = uuid4()
    service = self.service()
    service.apply_changes([NodeState(hostname=u'host1', uuid=identifier, manifestations={MANIFESTATION.dataset_id: MANIFESTATION}, paths={MANIFESTATION.dataset_id: FilePath('/xxx/yyy')}, devices={})])
    self.assertEqual(service.manifestation_path(identifier, MANIFESTATION.dataset_id), FilePath('/xxx/yyy'))
