def test_gps_time_setting_when_using_lat_lon_s_w():
gps = GPSSensor('/dev/ttyAMA0')
gps.value_type = GPSValueType.LATLON
gps.lat = -47
gps.lon = -122
gps.number_of_satellites = 3
current_utc = datetime.datetime.utcnow()
expected = add_checksum_to_expected(
f'$GPGGA,{current_utc.hour:02d}{current_utc.minute:02d}{current_utc.second:02}.00,4700.0,S,12200.0,W,1,3,,0,M,0,M,,*'
)
assert gps.read_line() == expected
assert gps.read_line() == ''
def test_setting_lat_lon_clears_value():
gps = GPSSensor('/dev/ttyAMA0')
gps.value_type = GPSValueType.NMEA
gps.raw_nmea = '$GNGGA,020604.001,4739.228833333,N,12207.031866667,W,1,3,,164.7,M,-17.1,M,,*67'
gps.value_type = GPSValueType.LATLON
gps.lat = -47
gps.lon = -122
gps.number_of_satellites = 3
current_utc = datetime.datetime.utcnow()
expected = add_checksum_to_expected(
f'$GPGGA,{current_utc.hour:02d}{current_utc.minute:02d}{current_utc.second:02}.00,4700.0,S,12200.0,W,1,3,,0,M,0,M,,*'
)
assert gps.read_line() == expected
assert gps.read_line() == ''