'Error case: The src-vol\'s LDEV does not exist.(MSGID0612-E).'

@mock.patch.object(vsp_utils, 'execute', side_effect=_execute)
@mock.patch.object(sqlalchemy_api, 'volume_get', side_effect=_volume_get)
def test_create_snapshot_ldev_not_found_on_storage(self, volume_get, execute):

    self.assertRaises(exception.VSPError, self.driver.create_snapshot, TEST_SNAPSHOT[3])
