jyoung/selfdrive/car/hyundai/tests/test_hyundai.py

#!/usr/bin/env python3
import unittest

from cereal import car
from selfdrive.car.hyundai.values import CAMERA_SCC_CAR, CANFD_CAR, CAN_GEARS, CAR, CHECKSUM, FW_QUERY_CONFIG, \
                                         FW_VERSIONS, LEGACY_SAFETY_MODE_CAR, PART_NUMBER_FW_PATTERN, PLATFORM_CODE_ECUS, \
                                         get_platform_codes

Ecu = car.CarParams.Ecu
ECU_NAME = {v: k for k, v in Ecu.schema.enumerants.items()}


class TestHyundaiFingerprint(unittest.TestCase):
  def test_canfd_not_in_can_features(self):
    can_specific_feature_list = set.union(*CAN_GEARS.values(), *CHECKSUM.values(), LEGACY_SAFETY_MODE_CAR, CAMERA_SCC_CAR)
    for car_model in CANFD_CAR:
      self.assertNotIn(car_model, can_specific_feature_list, "CAN FD car unexpectedly found in a CAN feature list")

  def test_auxiliary_request_ecu_whitelist(self):
    # Asserts only auxiliary Ecus can exist in database for CAN-FD cars
    whitelisted_ecus = {ecu for r in FW_QUERY_CONFIG.requests for ecu in r.whitelist_ecus if r.auxiliary}

    for car_model in CANFD_CAR:
      ecus = {fw[0] for fw in FW_VERSIONS[car_model].keys()}
      ecus_not_in_whitelist = ecus - whitelisted_ecus
      ecu_strings = ", ".join([f"Ecu.{ECU_NAME[ecu]}" for ecu in ecus_not_in_whitelist])
      self.assertEqual(len(ecus_not_in_whitelist), 0,
                       f"{car_model}: Car model has ECUs not in auxiliary request whitelists: {ecu_strings}")

  # Tests for platform codes, part numbers, and FW dates which Hyundai will use to fuzzy
  # fingerprint in the absence of full FW matches:
  def test_platform_code_ecus_available(self):
    # TODO: add queries for these non-CAN FD cars to get EPS
    no_eps_platforms = CANFD_CAR | {CAR.KIA_SORENTO, CAR.KIA_OPTIMA_G4, CAR.KIA_OPTIMA_G4_FL,
                                    CAR.SONATA_LF, CAR.TUCSON, CAR.GENESIS_G90, CAR.GENESIS_G80}

    # Asserts ECU keys essential for fuzzy fingerprinting are available on all platforms
    for car_model, ecus in FW_VERSIONS.items():
      with self.subTest(car_model=car_model):
        for platform_code_ecu in PLATFORM_CODE_ECUS:
          if platform_code_ecu in (Ecu.fwdRadar, Ecu.eps) and car_model == CAR.HYUNDAI_GENESIS:
            continue
          if platform_code_ecu == Ecu.eps and car_model in no_eps_platforms:
            continue
          self.assertIn(platform_code_ecu, [e[0] for e in ecus])

  def test_fw_format(self):
    # Asserts:
    # - every supported ECU FW version returns one platform code
    # - every supported ECU FW version has a part number
    # - expected parsing of ECU FW dates

    for car_model, ecus in FW_VERSIONS.items():
      with self.subTest(car_model=car_model):
        for ecu, fws in ecus.items():
          if ecu[0] not in PLATFORM_CODE_ECUS:
            continue

          codes = set()
          for fw in fws:
            result = get_platform_codes([fw])
            self.assertEqual(1, len(result), f"Unable to parse FW: {fw}")
            codes |= result

          # Some newer platforms have date codes in a different format we don't yet parse,
          # for now assert we can parse all FW or none
          self.assertEqual(len({b"-" in code for code in codes}), 1,
                           "Not all FW dates are parsable")

          if car_model == CAR.HYUNDAI_GENESIS:
            raise unittest.SkipTest("No part numbers for car model")

          # Hyundai places the ECU part number in their FW versions, assert all parsable
          # Some examples of valid formats: b"56310-L0010", b"56310L0010", b"56310/M6300"
          for fw in fws:
            match = PART_NUMBER_FW_PATTERN.search(fw)
            self.assertIsNotNone(match, fw)

  def test_platform_codes_spot_check(self):
    # Asserts basic platform code parsing behavior for a few cases
    codes = get_platform_codes([b"\xf1\x00DH LKAS 1.1 -150210"])
    self.assertEqual(codes, {b"DH-1502"})

    # Some cameras and all radars do not have dates
    codes = get_platform_codes([b"\xf1\x00AEhe SCC H-CUP      1.01 1.01 96400-G2000         "])
    self.assertEqual(codes, {b"AEhe"})

    codes = get_platform_codes([b"\xf1\x00CV1_ RDR -----      1.00 1.01 99110-CV000         "])
    self.assertEqual(codes, {b"CV1"})

    codes = get_platform_codes([
      b"\xf1\x00DH LKAS 1.1 -150210",
      b"\xf1\x00AEhe SCC H-CUP      1.01 1.01 96400-G2000         ",
      b"\xf1\x00CV1_ RDR -----      1.00 1.01 99110-CV000         ",
    ])
    self.assertEqual(codes, {b"DH-1502", b"AEhe", b"CV1"})

    # Returned platform codes must inclusively contain start/end dates
    codes = get_platform_codes([
      b"\xf1\x00LX2 MFC  AT USA LHD 1.00 1.07 99211-S8100 220222",
      b"\xf1\x00LX2 MFC  AT USA LHD 1.00 1.08 99211-S8100 211103",
      b"\xf1\x00ON  MFC  AT USA LHD 1.00 1.01 99211-S9100 190405",
      b"\xf1\x00ON  MFC  AT USA LHD 1.00 1.03 99211-S9100 190720",
    ])
    self.assertEqual(codes, {b"LX2-2111", b"LX2-2112", b"LX2-2201", b"LX2-2202",
                             b"ON-1904", b"ON-1905", b"ON-1906", b"ON-1907"})


if __name__ == "__main__":
  unittest.main()