def METHOD_NAME(self):
    with pytest.raises(ValueError):
        assert DagDefaultArgs(
            owner="test@example.com", start_date="March 12th 2020"
        )
    with pytest.raises(ValueError):
        assert DagDefaultArgs(owner="test@example.com", start_date="foo")
    with pytest.raises(ValueError):
        assert DagDefaultArgs(owner="test@example.com", start_date="2020-13-01")
    assert DagDefaultArgs(owner="test@example.com", start_date="2020-12-12")