'Getting a cluster by name will include backends if not specified.'

def test_cluster_get_by_name(self):

    cluster = utils.create_cluster(self.ctxt, name='cluster@backend')
    db_cluster = db.cluster_get(self.ctxt, name='cluster')
    self.assertEqual(cluster.id, db_cluster.id)
    db_cluster = db.cluster_get(self.ctxt, name='cluster@backend')
    self.assertEqual(cluster.id, db_cluster.id)
