def test_fail_silently(self):
# this tests combines testing for an UnknownMessageException and the silent param at once
msg = b"!AIVDM,1,1,,A,U31<0OOP000CshrMdl600?wP00SL,0*43"
nmea = NMEAMessage(msg)
with self.assertRaises(UnknownMessageException):
nmea.decode(silent=False)
# by default errors are ignored and an empty AIS message is returned
assert nmea.decode() is not None
assert isinstance(nmea.decode(), AISMessage)
text = """{
"nmea": {
"ais_id": 37,
"raw": "!AIVDM,1,1,,A,U31<0OOP000CshrMdl600?wP00SL,0*43",
"talker": "AI",
"type": "VDM",
"message_fragments": 1,
"fragment_number": 1,
"message_id": null,
"channel": "A",
"payload": "U31<0OOP000CshrMdl600?wP00SL",
"fill_bits": 0,
"checksum": 67,
"bit_array": "100101000011000001001100000000011111011111100000000000000000000000010011111011110000111010011101101100110100000110000000000000001111111111100000000000000000100011011100"
},
"decoded": {}
}"""
self.assertEqual(nmea.decode().to_json(), text)
def test_fail_silently(self):
# this tests combines testing for an UnknownMessageException and the silent param at once
msg = b"!AIVDM,1,1,,A,U31<0OOP000CshrMdl600?wP00SL,0*43"
nmea = NMEAMessage(msg)
with self.assertRaises(UnknownMessageException):
nmea.decode(silent=False)
# by default errors are ignored and None is returned
assert nmea.decode() is None
def test_msg_type(self):
"""
Test if msg type is correct
"""
nmea = NMEAMessage(b"!AIVDM,1,1,,B,15M67FC000G?ufbE`FepT@3n00Sa,0*5C")
assert nmea.decode().msg_type == AISType.POS_CLASS_A1
nmea = NMEAMessage(b"!AIVDM,1,1,,B,15NG6V0P01G?cFhE`R2IU?wn28R>,0*05")
assert nmea.decode().msg_type == AISType.POS_CLASS_A1
nmea = NMEAMessage.assemble_from_iterable(messages=[
NMEAMessage(b"!AIVDM,2,1,4,A,55O0W7`00001L@gCWGA2uItLth@DqtL5@F22220j1h742t0Ht0000000,0*08"),
NMEAMessage(b"!AIVDM,2,2,4,A,000000000000000,2*20")
])
assert nmea.decode().msg_type == AISType.STATIC_AND_VOYAGE
def test_nmea(self):
"""
Test if ais message still contains the original nmea message
"""
nmea = NMEAMessage(b"!AIVDM,1,1,,B,91b55wi;hbOS@OdQAC062Ch2089h,0*30")
assert nmea.decode().nmea == nmea
from pyais.messages import NMEAMessage
message = NMEAMessage(b"!AIVDM,1,1,,B,15M67FC000G?ufbE`FepT@3n00Sa,0*5C")
print(message.decode())
# or
message = NMEAMessage.from_string(
"!AIVDM,1,1,,B,15M67FC000G?ufbE`FepT@3n00Sa,0*5C")
print(message.decode())
