'update replication group is not implemented.'

def test_update_replication_group_is_not_implemented(self):

    self.configuration.replication_device = [TEST_REPLICATION_DEVICE]
    self.driver = FakeDS8KProxy(self.storage_info, self.logger, self.exception, self)
    self.driver.setup(self.ctxt)
    group_type = group_types.create(self.ctxt, 'group', {'group_replication_enabled': '<is>    True'})
    group = self._create_group(host=TEST_GROUP_HOST, group_type_id=group_type.id)
    vol_type = volume_types.create(self.ctxt, 'VOL_TYPE', {'replication_enabled': '<is>    True'})
    location = six.text_type({'vol_hex_id': TEST_VOLUME_ID})
    data = json.dumps({'vol_hex_id': TEST_VOLUME_ID})
    volume = self._create_volume(volume_type_id=vol_type.id, provider_location=location, replication_driver_data=data, group_id=group.id)
    self.assertRaises(NotImplementedError, self.driver.update_group, self.ctxt, group, [volume], [])
