def test_encode_payload_error_radio():
with unittest.TestCase().assertRaises(ValueError) as err:
encode_payload({'mmsi': 123456}, radio_channel="C")
assert str(err.exception) == "radio_channel must be any of ['A', 'B']"
with unittest.TestCase().assertRaises(ValueError) as err:
encode_payload({'mmsi': 123456}, radio_channel=None)
assert str(err.exception) == "radio_channel must be any of ['A', 'B']"
def test_encode_payload_invalid_talker_id():
with unittest.TestCase().assertRaises(ValueError) as err:
encode_payload({'mmsi': 123456}, talker_id="AIDDD")
assert str(err.exception) == "talker_id must be any of ['AIVDM', 'AIVDO']"
with unittest.TestCase().assertRaises(ValueError) as err:
encode_payload({'mmsi': 123456}, talker_id=None)
assert str(err.exception) == "talker_id must be any of ['AIVDM', 'AIVDO']"
def test_ship_name_too_lon():
msg = MessageType5.create(mmsi="123", shipname="Titanic Titanic Titanic")
encoded = encode_payload(msg)
assert encoded[
0] == "!AIVDO,2,1,,A,50000Nh000000000001@U@4pT>1@U@4pT>1@U@40000000000000000000000,2*56"
assert encoded[1] == "!AIVDO,2,2,,A,0000000000,2*26"
def test_lon_too_large():
msg = MessageType1.create(mmsi="123", lon=1 << 30)
encoded = encode_payload(msg)
assert encoded[0] == "!AIVDO,1,1,,A,10000Nh000Owwwv0000000000000,0*7D"
def test_mmsi_too_long():
msg = MessageType1.create(mmsi=1 << 35)
encoded = encode_payload(msg)
assert encoded[0] == "!AIVDO,1,1,,A,1?wwwwh000000000000000000000,0*72"
from pyais.encode import MessageType5, encode_payload
from pyais.encode import encode_dict
data = {
'course': 219.3,
'lat': 37.802,
'lon': -122.341,
'mmsi': '366053209',
'type': 1
}
encoded = encode_dict(data, radio_channel="B", talker_id="AIVDM")[0]
# It is also possible to create messages directly and pass them to `encode_payload`
payload = MessageType5.create(mmsi="123",
shipname="Titanic",
callsign="TITANIC",
destination="New York")
encoded = encode_payload(payload)
print(encoded)