def test_timespan_field_datetime(helpers):
        with pytest.raises(exceptions.ValidationError) as excinfo:
            pytest.app.records.create(
                **{"Required Date & Time": pendulum.now(), "Timespan": pendulum.now()})
        assert str(excinfo.value) == 'Validation failed for <Record: %s - New>. Reason: Field \'Timespan\' expects one of \'timedelta\', got \'DateTime\' instead' % pytest.app.acronym