'Error case: Source LDEV\'s VOL_Capacity is invalid(MSGID0703-E).'

@mock.patch.object(vsp_utils, 'execute', side_effect=_execute)
def test_manage_existing_get_size_invalid_size_ref(self, execute):

    self.assertRaises(exception.ManageExistingInvalidReference, self.driver.manage_existing_get_size, TEST_VOLUME[0], self.test_existing_invalid_size)
