'user should reserve LSS for consistency group.'

def test_create_consistency_group(self):

    self.driver = FakeDS8KProxy(self.storage_info, self.logger, self.exception, self)
    self.driver.setup(self.ctxt)
    group_type = group_types.create(self.ctxt, 'group', {'consistent_group_snapshot_enabled': '<is>    True'})
    group = self._create_group(host=TEST_GROUP_HOST, group_type_id=group_type.id)
    self.assertRaises(exception.VolumeDriverException, self.driver.create_group, self.ctxt, group)
