public int getMfgReserved() {
        return mDataFields.get(0).intValue();
    }
@Test
    public void testRecognizeBeacon() {
        byte[] bytes = hexStringToByteArray("02011a1bff1801beac2f234454cf6d4a0fadf2f4911ba9ffa600010002c509");
        AltBeaconParser parser = new AltBeaconParser();
        Beacon beacon = parser.fromScanData(bytes, -55, null, 123456L);
        assertEquals("manData should be parsed", 9, ((AltBeacon) beacon).getMfgReserved() );
    }