def test_immutable_refquota(self):
        self.assertRaises(
            AttributeError, setattr, self.info, "refquota", 321)
:class:`_DatasetInfo.refquota` cannot be rebound.
dataset/ETHPy150Open ClusterHQ/flocker/flocker/volume/test/test_filesystems_zfs.py/DatasetInfoTests.test_immutable_refquota