def test(req, author, content, ip):
    """Test the given content submission.

        Should return a `(points, reason)` tuple to affect the score of the
        submission, where `points` is an integer, and `reason` is a brief
        description of why the score is being affected.

        If the filter strategy does not want (or is not able) to effectively
        test the submission, it should return `None`.
        """
