def test_GGASentences(self):
        """
        A sequence of GGA sentences fires C{positionReceived},
        C{positionErrorReceived} and C{altitudeReceived}.
        """
        sentences = [GPGGA]
        callbacksFired = ['positionReceived',
                          'positionErrorReceived',
                          'altitudeReceived']

        self._receiverTest(sentences, callbacksFired)

        A sequence of GGA sentences fires C{positionReceived},
        C{positionErrorReceived} and C{altitudeReceived}.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/positioning/test/test_nmea.py