def test_GLL(self):
        """
        GLL sentence data is unused when the data is flagged as void.
        """
        sentenceData = {'type': 'GPGLL',
                        'altitude': '545.4',
                        'dataMode': nmea.GPGLLGPRMCFixQualities.VOID}

        self._invalidFixTest(sentenceData)

        GLL sentence data is unused when the data is flagged as void.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/positioning/test/test_nmea.py