'find lss for volume, which is in CG having volumes.'

def test_find_lss_for_volume_which_belongs_to_cg2(self):

    self.configuration.lss_range_for_cg = '20-23'
    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)
    location = six.text_type({'vol_hex_id': '2000'})
    self._create_volume(group_id=group.id, provider_location=location)
    volume = self._create_volume(group_id=group.id)
    lun = ds8kproxy.Lun(volume)
    self.driver._create_lun_helper(lun)
    (pid, lss) = lun.pool_lss_pair['source']
    self.assertEqual(lss, '20')
