def test_formatEventNoFormat(self):
        """
        Formatting an event with no format.
        """
        event = dict(foo=1, bar=2)
        result = formatEvent(event)

        self.assertEqual(u"", result)

        Formatting an event with no format.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/logger/test/test_format.py