def test_bad_values(self):
# packet expresses longitude of 221.8539, which is crazy, so no location should be available
m = simpleais.parse('!AIVDM,1,1,,A,2C2ILGC4oRgoT?r1fdC3wcvi26;8,0*33')
self.assertEqual('203840605', m['mmsi'])
self.assertIsNone(m['lon'])
self.assertAlmostEquals(3.0226, m['lat'])
self.assertIsNone(m.location())
# packet is too short, so no location should be available
m = simpleais.parse('1452655664.394 !AIVDM,1,1,,A,ECgb9OI9R@106jh`8@7Q3wmTkP06,0*3A')
self.assertEqual('251300221', m['mmsi'])
self.assertIsNone(m['lon'])
self.assertIsNone(m['lat'])
self.assertIsNone(m.location())
def test_checksum_filter(self):
good = parse("!AIVDM,1,1,,B,3;hw29cc6<<1qABsuhLN>=5ws`Qo,0*4C")
bad = parse("!AIVDM,1,1,,B,3;hw29cc6<<1qABsuhLN>=5ws`Qo,0*4B")
taster = Taster(checksum=None)
self.assertTrue(taster.likes(good))
self.assertTrue(taster.likes(bad))
taster = Taster(checksum=True)
self.assertTrue(taster.likes(good))
self.assertFalse(taster.likes(bad))
taster = Taster(checksum=False)
self.assertFalse(taster.likes(good))
self.assertTrue(taster.likes(bad))
def test_bad_values(self):
# packet expresses longitude of 221.8539, which is crazy, so no location should be available
m = simpleais.parse('!AIVDM,1,1,,A,2C2ILGC4oRgoT?r1fdC3wcvi26;8,0*33')
self.assertEqual('203840605', m['mmsi'])
self.assertIsNone(m['lon'])
self.assertAlmostEquals(3.0226, m['lat'])
self.assertIsNone(m.location())
# packet is too short, so no location should be available
m = simpleais.parse(
'1452655664.394 !AIVDM,1,1,,A,ECgb9OI9R@106jh`8@7Q3wmTkP06,0*3A')
self.assertEqual('251300221', m['mmsi'])
self.assertIsNone(m['lon'])
self.assertIsNone(m['lat'])
self.assertIsNone(m.location())
def test_checksum_filter(self):
good = parse("!AIVDM,1,1,,B,3;hw29cc6<<1qABsuhLN>=5ws`Qo,0*4C")
bad = parse("!AIVDM,1,1,,B,3;hw29cc6<<1qABsuhLN>=5ws`Qo,0*4B")
taster = Taster(checksum=None)
self.assertTrue(taster.likes(good))
self.assertTrue(taster.likes(bad))
taster = Taster(checksum=True)
self.assertTrue(taster.likes(good))
self.assertFalse(taster.likes(bad))
taster = Taster(checksum=False)
self.assertFalse(taster.likes(good))
self.assertTrue(taster.likes(bad))
def test_basics(self):
m = simpleais.parse(['!AIVDM,2,1,0,B,55QEQ`42Cktc<IL?J20@tpNl61A8U@tr2222221@BhQ,0*45',
'!AIVDM,2,2,0,B,H86tl0PDSlhDRE3p3F8888888880,2*57'])[0]
self.assertEqual(5, m.type_id())
self.assertEqual('370500000', m['mmsi'])
self.assertEqual('DONG-A TRITON', m['shipname'])
self.assertEqual('ROSARITO MX', m['destination'])
def test_basic_sentence(self):
sentence = simpleais.parse('!ABVDM,1,1,,A,15NaEPPP01oR`R6CC?<j@gvr0<1C,0*1F')
self.assertIsInstance(sentence, Sentence)
self.assertEqual('AB', sentence.talker)
self.assertEqual('VDM', sentence.sentence_type)
self.assertEqual('A', sentence.radio_channel)
self.assertEqual(1, sentence.type_id())
def test_fragment_assembly(self):
raw = fragmented_message_type_8
sentences = simpleais.parse(raw)
self.assertEqual(1, len(sentences))
message_bytes = sum([len(m) - len('!AIVDM,3,1,3,A,') - len(',2*34') for m in raw])
message_bits = message_bytes * 6 - 2 # where 2 is padding on last fragment
self.assertEquals(message_bits, len(sentences[0].message_bits()))
def test_basic_sentence(self):
sentence = simpleais.parse(
'!ABVDM,1,1,,A,15NaEPPP01oR`R6CC?<j@gvr0<1C,0*1F')
self.assertIsInstance(sentence, Sentence)
self.assertEqual('AB', sentence.talker)
self.assertEqual('VDM', sentence.sentence_type)
self.assertEqual('A', sentence.radio_channel)
self.assertEqual(1, sentence.type_id())
def test_fragment_assembly(self):
raw = fragmented_message_type_8
sentences = simpleais.parse(raw)
self.assertEqual(1, len(sentences))
message_bytes = sum(
[len(m) - len('!AIVDM,3,1,3,A,') - len(',2*34') for m in raw])
message_bits = message_bytes * 6 - 2 # where 2 is padding on last fragment
self.assertEquals(message_bits, len(sentences[0].message_bits()))
def test_time_filter(self):
early, late = parse(["1456572038.584 !AIVDM,1,1,,A,35DQ`v100211@E:GFlh=6To<P000pJw>`<,0*59",
"1463812839.417 !AIVDM,1,1,,A,15DQ`v001P005W4EqMD`DVW>0>`<,0*62"])
taster = Taster(before=1460000000)
self.assertTrue(taster.likes(early))
self.assertFalse(taster.likes(late))
taster = Taster(after=1460000000)
self.assertFalse(taster.likes(early))
self.assertTrue(taster.likes(late))
def test_time_filter(self):
early, late = parse([
"1456572038.584 !AIVDM,1,1,,A,35DQ`v100211@E:GFlh=6To<P000pJw>`<,0*59",
"1463812839.417 !AIVDM,1,1,,A,15DQ`v001P005W4EqMD`DVW>0>`<,0*62"
])
taster = Taster(before=1460000000)
self.assertTrue(taster.likes(early))
self.assertFalse(taster.likes(late))
taster = Taster(after=1460000000)
self.assertFalse(taster.likes(early))
self.assertTrue(taster.likes(late))
def AISDecode():
print("AIS Decoded Started..")
fInput = open("Test.csv", "r", newline='')
fOutput = open('AISDecoded.csv', "w", newline='')
AISReader = csv.reader(fInput, delimiter=',')
AISWriter = csv.writer(fOutput,
delimiter=',',
quotechar='"',
quoting=csv.QUOTE_MINIMAL)
for row in AISReader:
message = row[0]
decodedMsg = simpleais.parse(message)
if decodedMsg is None:
continue
AISWriter.writerow([
decodedMsg['mmsi'], decodedMsg['lat'], decodedMsg['lon'],
decodedMsg['course'], decodedMsg['speed'], row[1]
])
print("AIS Decoded")
def test_fields_for_sentence(self):
m = simpleais.parse('!ABVDM,1,1,,A,15NaEPPP01oR`R6CC?<j@gvr0<1C,0*1F')
self.assertEqual(16, len(m.fields()))
self.assertEqual("Message Type", m.fields()[0].description())
self.assertEqual("Message Type", m.field('type').description())
message_type = m.field(0)
self.assertEqual("type", message_type.name())
self.assertEqual("Message Type", message_type.description())
self.assertEqual(1, message_type.value())
self.assertEqual(Bits('000001'), message_type.bits())
raim = m.field(14)
self.assertEqual("raim", raim.name())
self.assertEqual("RAIM flag", raim.description())
self.assertEqual(False, raim.value())
self.assertEqual(Bits('0'), raim.bits())
radio_status = m.field(15)
self.assertEqual("radio", radio_status.name())
self.assertEqual("Radio status", radio_status.description())
self.assertEqual(49235, radio_status.value())
self.assertEqual(Bits('0001100000001010011'), radio_status.bits())
def test_fields_for_sentence(self):
m = simpleais.parse('!ABVDM,1,1,,A,15NaEPPP01oR`R6CC?<j@gvr0<1C,0*1F')
self.assertEqual(16, len(m.fields()))
self.assertEqual("Message Type", m.fields()[0].description())
self.assertEqual("Message Type", m.field('type').description())
message_type = m.field(0)
self.assertEqual("type", message_type.name())
self.assertEqual("Message Type", message_type.description())
self.assertEqual(1, message_type.value())
self.assertEqual(Bits('000001'), message_type.bits())
raim = m.field(14)
self.assertEqual("raim", raim.name())
self.assertEqual("RAIM flag", raim.description())
self.assertEqual(False, raim.value())
self.assertEqual(Bits('0'), raim.bits())
radio_status = m.field(15)
self.assertEqual("radio", radio_status.name())
self.assertEqual("Radio status", radio_status.description())
self.assertEqual(49235, radio_status.value())
self.assertEqual(Bits('0001100000001010011'), radio_status.bits())
def AISDecode(path):
print("AIS Decoding Started..")
fInput = open(path, "r", newline='')
fOutput = open('AISDecoded.csv', "w", newline='')
AISReader = csv.reader(fInput, delimiter=',')
AISWriter = csv.writer(fOutput,
delimiter=',',
quotechar='"',
quoting=csv.QUOTE_MINIMAL)
AISWriter.writerow(["MMSI", "Latitude", "Longitude", "COG", "SOG", "Time"])
for row in AISReader:
message = row[0]
decodedMsg = simpleais.parse(message)
if decodedMsg is None:
continue
if isinstance(decodedMsg, simpleais.SentenceFragment) == True:
continue
AISWriter.writerow([
decodedMsg['mmsi'], decodedMsg['lat'], decodedMsg['lon'],
decodedMsg['course'], decodedMsg['speed'], row[1]
])
print("AIS Decoded")
def test_single_fragment(self):
body = '85NoHR1KfI99t:BHBI3sWpAoS7VHRblW8McQtR3lsFR'
padding = 0
fragment = simpleais.parse('!AIVDM,3,1,3,A,%s,%s*5A' % (body, padding))
self.assertIsInstance(fragment, SentenceFragment)
self.assertEqual(len(body) * 6 - padding, len(fragment.bits()))
def test_optional_date(self):
text = "1454124838.633\t!ABVDM,1,1,,A,15NaEPPP01oR`R6CC?<j@gvr0<1C,0*1F"
sentence = simpleais.parse(text)
self.assertEqual(1454124838.633, sentence.time)
def test_known_and_unknown_fields(self):
m = simpleais.parse('!ABVDM,1,1,,A,15NaEPPP01oR`R6CC?<j@gvr0<1C,0*1F')
self.assertTrue(m['type'])
self.assertFalse(m['unknown'])
def test_as_location(self):
m = simpleais.parse('!ABVDM,1,1,,A,15NaEPPP01oR`R6CC?<j@gvr0<1C,0*1F')
location = m.location()
self.assertAlmostEquals(-118.2634, location[0])
self.assertAlmostEquals(33.7302, location[1])
def test_round_trip_for_multiple_fragments(self):
sentence = simpleais.parse(fragmented_message_type_8)[0]
self.assertEqual(fragmented_message_type_8, sentence.text)
def test_basic_lists(self):
sentences = simpleais.parse([
'!AIVDM,1,1,,B,H52R9E1<D<tpB1LTp@000000000,2*5C',
'!ABVDM,1,1,,A,15MqdBP001GRT>>CCUu360Lr041d,0*69'
])
self.assertEqual(2, len(sentences))
def test_has_zero_speed(self):
m = simpleais.parse('!AIVDM,1,1,,A,39NSH1U000GND`LCRQc;WpM`P>`<,0*6C')
self.assertTrue('speed' in m)
self.assertEqual(0, m['speed'])
def test_has_zero_speed(self):
m = simpleais.parse('!AIVDM,1,1,,A,39NSH1U000GND`LCRQc;WpM`P>`<,0*6C')
self.assertTrue('speed' in m)
self.assertEqual(0, m['speed'])
def test_has_speed(self):
m = simpleais.parse('!AIVDM,1,1,,B,19NSH1P02QG?:MjE`?qBFApb0>`<,0*41')
self.assertTrue('speed' in m)
self.assertEqual(16.1, m['speed'])
def test_no_lat_or_lon(self):
m = simpleais.parse('!ABVDM,1,1,,A,152MQ1qP?w<tSF0l4Q@>4?wp1p7G,0*78')
self.assertEqual('338125063', m['mmsi'])
self.assertIsNone(m['lon'])
self.assertIsNone(m['lat'])
def test_as_location(self):
m = simpleais.parse('!ABVDM,1,1,,A,15NaEPPP01oR`R6CC?<j@gvr0<1C,0*1F')
location = m.location()
self.assertAlmostEquals(-118.2634, location[0])
self.assertAlmostEquals(33.7302, location[1])
def test_basics(self):
m = simpleais.parse('!ABVDM,1,1,,A,15NaEPPP01oR`R6CC?<j@gvr0<1C,0*1F')
self.assertEqual(1, m.type_id())
self.assertEqual('367678850', m['mmsi'])
self.assertAlmostEquals(-118.2634, m['lon'])
self.assertAlmostEquals(33.7302, m['lat'])
def test_basic_lists(self):
sentences = simpleais.parse([
'!AIVDM,1,1,,B,H52R9E1<D<tpB1LTp@000000000,2*5C',
'!ABVDM,1,1,,A,15MqdBP001GRT>>CCUu360Lr041d,0*69'
])
self.assertEqual(2, len(sentences))
def test_optional_date(self):
text = "1454124838.633\t!ABVDM,1,1,,A,15NaEPPP01oR`R6CC?<j@gvr0<1C,0*1F"
sentence = simpleais.parse(text)
self.assertEqual(1454124838.633, sentence.time)
def test_round_trip_for_multiple_fragments(self):
sentence = simpleais.parse(fragmented_message_type_8)[0]
self.assertEqual(fragmented_message_type_8, sentence.text)
def test_round_trip_for_single_fragment(self):
text = '!ABVDM,1,1,,A,15NaEPPP01oR`R6CC?<j@gvr0<1C,0*1F'
sentence = simpleais.parse(text)
self.assertEqual(text, sentence.text[0])
class TestTaster(TestCase):
type_1_la = parse(
["1452468552.938 !AIVDM,1,1,,B,14Wtnn002SGLde:BbrBmdTLF0Vql,0*6E"])[0]
type_1_sf = parse(["!AIVDM,1,1,,A,15Mw0GP01SG?W>PE`laU<TJj0L20,0*67"])[0]
type_5 = parse([
"!WSVDM,2,1,0,A,5=JklSl00003UHDs:20l4E9<f04i@4U:22222217,0*4C",
"!WSVDM,2,2,0,A,05B0dl0HtS000000000000000000008,2*00"
])[0]
type_17 = parse(
["!AIVDM,1,1,,A,Auju3sUbv8u`:JBCIf?vOeCSWmp:JOGeRN@?iD=I,0*61"])[0]
def test_location_filtering(self):
taster = Taster(lat=(32, 35)) # LA
self.assertTrue(taster.likes(self.type_1_la))
self.assertFalse(taster.likes(self.type_1_sf))
taster = Taster(lon=(-121, -117)) # LA
self.assertTrue(taster.likes(self.type_1_la))
self.assertFalse(taster.likes(self.type_1_sf))
def test_type_filtering(self):
taster = Taster(sentence_type=[1])
self.assertTrue(taster.likes(self.type_1_la))
self.assertTrue(taster.likes(self.type_1_sf))
self.assertFalse(taster.likes(self.type_5))
self.assertFalse(taster.likes(self.type_17))
taster = Taster(sentence_type=[5, 17])
self.assertFalse(taster.likes(self.type_1_la))
self.assertFalse(taster.likes(self.type_1_sf))
self.assertTrue(taster.likes(self.type_5))
self.assertTrue(taster.likes(self.type_17))
def test_field_filtering(self):
taster = Taster(field=['shiptype'])
self.assertFalse(taster.likes(self.type_1_la))
self.assertTrue(taster.likes(self.type_5))
self.assertFalse(taster.likes(self.type_17))
def test_value_filtering(self):
taster = Taster(value=[('mmsi', '366985310')])
self.assertTrue(taster.likes(self.type_1_sf))
self.assertFalse(taster.likes(self.type_1_la))
self.assertFalse(taster.likes(self.type_5))
self.assertFalse(taster.likes(self.type_17))
def test_packets_without_locations_are_rejected_when_filtering_for_location(
self):
taster = Taster(lat=(0, 90))
self.assertFalse(taster.likes(self.type_5))
def test_checksum_filter(self):
good = parse("!AIVDM,1,1,,B,3;hw29cc6<<1qABsuhLN>=5ws`Qo,0*4C")
bad = parse("!AIVDM,1,1,,B,3;hw29cc6<<1qABsuhLN>=5ws`Qo,0*4B")
taster = Taster(checksum=None)
self.assertTrue(taster.likes(good))
self.assertTrue(taster.likes(bad))
taster = Taster(checksum=True)
self.assertTrue(taster.likes(good))
self.assertFalse(taster.likes(bad))
taster = Taster(checksum=False)
self.assertFalse(taster.likes(good))
self.assertTrue(taster.likes(bad))
def test_time_filter(self):
early, late = parse([
"1456572038.584 !AIVDM,1,1,,A,35DQ`v100211@E:GFlh=6To<P000pJw>`<,0*59",
"1463812839.417 !AIVDM,1,1,,A,15DQ`v001P005W4EqMD`DVW>0>`<,0*62"
])
taster = Taster(before=1460000000)
self.assertTrue(taster.likes(early))
self.assertFalse(taster.likes(late))
taster = Taster(after=1460000000)
self.assertFalse(taster.likes(early))
self.assertTrue(taster.likes(late))
def test_invert_match(self):
taster = Taster(lat=(32, 35), invert_match=True) # LA
self.assertFalse(taster.likes(self.type_1_la))
self.assertTrue(taster.likes(self.type_1_sf))
def test_decoder_decodes(self):
d = MESSAGE_DECODERS[1]
m = simpleais.parse('!ABVDM,1,1,,A,15NaEPPP01oR`R6CC?<j@gvr0<1C,0*1F')
self.assertEqual('367678850', d.decode('mmsi', m))
self.assertAlmostEquals(33.7302, d.decode('lat', m))
self.assertAlmostEquals(-118.2634, d.decode('lon', m))
def test_round_trip_for_single_fragment(self):
text = '!ABVDM,1,1,,A,15NaEPPP01oR`R6CC?<j@gvr0<1C,0*1F'
sentence = simpleais.parse(text)
self.assertEqual(text, sentence.text[0])
def test_known_and_unknown_fields(self):
m = simpleais.parse('!ABVDM,1,1,,A,15NaEPPP01oR`R6CC?<j@gvr0<1C,0*1F')
self.assertTrue(m['type'])
self.assertFalse(m['unknown'])
def test_no_lat_or_lon(self):
m = simpleais.parse('!ABVDM,1,1,,A,152MQ1qP?w<tSF0l4Q@>4?wp1p7G,0*78')
self.assertEqual('338125063', m['mmsi'])
self.assertIsNone(m['lon'])
self.assertIsNone(m['lat'])
def test_single_fragment(self):
body = '85NoHR1KfI99t:BHBI3sWpAoS7VHRblW8McQtR3lsFR'
padding = 0
fragment = simpleais.parse('!AIVDM,3,1,3,A,%s,%s*5A' % (body, padding))
self.assertIsInstance(fragment, SentenceFragment)
self.assertEqual(len(body) * 6 - padding, len(fragment.bits()))
def test_decoder_decodes(self):
d = MESSAGE_DECODERS[1]
m = simpleais.parse('!ABVDM,1,1,,A,15NaEPPP01oR`R6CC?<j@gvr0<1C,0*1F')
self.assertEqual('367678850', d.decode('mmsi', m))
self.assertAlmostEquals(33.7302, d.decode('lat', m))
self.assertAlmostEquals(-118.2634, d.decode('lon', m))
def test_has_speed(self):
m = simpleais.parse('!AIVDM,1,1,,B,19NSH1P02QG?:MjE`?qBFApb0>`<,0*41')
self.assertTrue('speed' in m)
self.assertEqual(16.1, m['speed'])
def test_convenience_parse(self):
self.assertEqual(None, simpleais.parse(''))
self.assertEqual([], simpleais.parse([]))
def test_basics(self):
m = simpleais.parse('!ABVDM,1,1,,A,15NaEPPP01oR`R6CC?<j@gvr0<1C,0*1F')
self.assertEqual(1, m.type_id())
self.assertEqual('367678850', m['mmsi'])
self.assertAlmostEquals(-118.2634, m['lon'])
self.assertAlmostEquals(33.7302, m['lat'])
def test_convenience_parse(self):
self.assertEqual(None, simpleais.parse(''))
self.assertEqual([], simpleais.parse([]))