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263 lines
11 KiB
263 lines
11 KiB
#!/usr/bin/env python3
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import random
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import time
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import unittest
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from collections import defaultdict
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from parameterized import parameterized
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import threading
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from cereal import car
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from common.params import Params
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from selfdrive.car.car_helpers import interfaces
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from selfdrive.car.fingerprints import FW_VERSIONS
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from selfdrive.car.fw_versions import FW_QUERY_CONFIGS, FUZZY_EXCLUDE_ECUS, VERSIONS, build_fw_dict, match_fw_to_car, get_fw_versions, get_present_ecus
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from selfdrive.car.vin import get_vin
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CarFw = car.CarParams.CarFw
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Ecu = car.CarParams.Ecu
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ECU_NAME = {v: k for k, v in Ecu.schema.enumerants.items()}
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class FakeSocket:
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def receive(self, non_blocking=False):
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pass
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def send(self, msg):
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pass
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class TestFwFingerprint(unittest.TestCase):
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def assertFingerprints(self, candidates, expected):
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candidates = list(candidates)
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self.assertEqual(len(candidates), 1, f"got more than one candidate: {candidates}")
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self.assertEqual(candidates[0], expected)
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@parameterized.expand([(b, c, e[c]) for b, e in VERSIONS.items() for c in e])
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def test_exact_match(self, brand, car_model, ecus):
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CP = car.CarParams.new_message()
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for _ in range(200):
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fw = []
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for ecu, fw_versions in ecus.items():
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ecu_name, addr, sub_addr = ecu
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fw.append({"ecu": ecu_name, "fwVersion": random.choice(fw_versions), 'brand': brand,
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"address": addr, "subAddress": 0 if sub_addr is None else sub_addr})
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CP.carFw = fw
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_, matches = match_fw_to_car(CP.carFw, allow_fuzzy=False)
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self.assertFingerprints(matches, car_model)
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@parameterized.expand([(b, c, e[c]) for b, e in VERSIONS.items() for c in e])
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def test_custom_fuzzy_match(self, brand, car_model, ecus):
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# Assert brand-specific fuzzy fingerprinting function doesn't disagree with standard fuzzy function
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config = FW_QUERY_CONFIGS[brand]
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if config.match_fw_to_car_fuzzy is None:
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raise unittest.SkipTest("Brand does not implement custom fuzzy fingerprinting function")
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CP = car.CarParams.new_message()
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for _ in range(5):
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fw = []
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for ecu, fw_versions in ecus.items():
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ecu_name, addr, sub_addr = ecu
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fw.append({"ecu": ecu_name, "fwVersion": random.choice(fw_versions), 'brand': brand,
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"address": addr, "subAddress": 0 if sub_addr is None else sub_addr})
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CP.carFw = fw
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_, matches = match_fw_to_car(CP.carFw, allow_exact=False, log=False)
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brand_matches = config.match_fw_to_car_fuzzy(build_fw_dict(CP.carFw))
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# If both have matches, they must agree
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if len(matches) == 1 and len(brand_matches) == 1:
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self.assertEqual(matches, brand_matches)
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@parameterized.expand([(b, c, e[c]) for b, e in VERSIONS.items() for c in e])
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def test_fuzzy_match_ecu_count(self, brand, car_model, ecus):
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# Asserts that fuzzy matching does not count matching FW, but ECU address keys
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valid_ecus = [e for e in ecus if e[0] not in FUZZY_EXCLUDE_ECUS]
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if not len(valid_ecus):
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raise unittest.SkipTest("Car model has no compatible ECUs for fuzzy matching")
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fw = []
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for ecu in valid_ecus:
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ecu_name, addr, sub_addr = ecu
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for _ in range(5):
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# Add multiple FW versions to simulate ECU returning to multiple queries in a brand
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fw.append({"ecu": ecu_name, "fwVersion": random.choice(ecus[ecu]), 'brand': brand,
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"address": addr, "subAddress": 0 if sub_addr is None else sub_addr})
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CP = car.CarParams.new_message(carFw=fw)
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_, matches = match_fw_to_car(CP.carFw, allow_exact=False, log=False)
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# Assert no match if there are not enough unique ECUs
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unique_ecus = {(f['address'], f['subAddress']) for f in fw}
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if len(unique_ecus) < 2:
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self.assertEqual(len(matches), 0, car_model)
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# There won't always be a match due to shared FW, but if there is it should be correct
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elif len(matches):
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self.assertFingerprints(matches, car_model)
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def test_fw_version_lists(self):
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for car_model, ecus in FW_VERSIONS.items():
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with self.subTest(car_model=car_model):
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for ecu, ecu_fw in ecus.items():
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with self.subTest(ecu):
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duplicates = {fw for fw in ecu_fw if ecu_fw.count(fw) > 1}
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self.assertFalse(len(duplicates), f'{car_model}: Duplicate FW versions: Ecu.{ECU_NAME[ecu[0]]}, {duplicates}')
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self.assertGreater(len(ecu_fw), 0, f'{car_model}: No FW versions: Ecu.{ECU_NAME[ecu[0]]}')
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def test_all_addrs_map_to_one_ecu(self):
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for brand, cars in VERSIONS.items():
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addr_to_ecu = defaultdict(set)
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for ecus in cars.values():
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for ecu_type, addr, sub_addr in ecus.keys():
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addr_to_ecu[(addr, sub_addr)].add(ecu_type)
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ecus_for_addr = addr_to_ecu[(addr, sub_addr)]
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ecu_strings = ", ".join([f'Ecu.{ECU_NAME[ecu]}' for ecu in ecus_for_addr])
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self.assertLessEqual(len(ecus_for_addr), 1, f"{brand} has multiple ECUs that map to one address: {ecu_strings} -> ({hex(addr)}, {sub_addr})")
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def test_data_collection_ecus(self):
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# Asserts no extra ECUs are in the fingerprinting database
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for brand, config in FW_QUERY_CONFIGS.items():
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for car_model, ecus in VERSIONS[brand].items():
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bad_ecus = set(ecus).intersection(config.extra_ecus)
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with self.subTest(car_model=car_model):
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self.assertFalse(len(bad_ecus), f'{car_model}: Fingerprints contain ECUs added for data collection: {bad_ecus}')
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def test_blacklisted_ecus(self):
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blacklisted_addrs = (0x7c4, 0x7d0) # includes A/C ecu and an unknown ecu
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for car_model, ecus in FW_VERSIONS.items():
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with self.subTest(car_model=car_model):
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CP = interfaces[car_model][0].get_non_essential_params(car_model)
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if CP.carName == 'subaru':
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for ecu in ecus.keys():
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self.assertNotIn(ecu[1], blacklisted_addrs, f'{car_model}: Blacklisted ecu: (Ecu.{ECU_NAME[ecu[0]]}, {hex(ecu[1])})')
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elif CP.carName == "chrysler":
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# Some HD trucks have a combined TCM and ECM
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if CP.carFingerprint.startswith("RAM HD"):
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for ecu in ecus.keys():
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self.assertNotEqual(ecu[0], Ecu.transmission, f"{car_model}: Blacklisted ecu: (Ecu.{ECU_NAME[ecu[0]]}, {hex(ecu[1])})")
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def test_missing_versions_and_configs(self):
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brand_versions = set(VERSIONS.keys())
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brand_configs = set(FW_QUERY_CONFIGS.keys())
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if len(brand_configs - brand_versions):
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with self.subTest():
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self.fail(f"Brands do not implement FW_VERSIONS: {brand_configs - brand_versions}")
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if len(brand_versions - brand_configs):
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with self.subTest():
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self.fail(f"Brands do not implement FW_QUERY_CONFIG: {brand_versions - brand_configs}")
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def test_fw_request_ecu_whitelist(self):
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for brand, config in FW_QUERY_CONFIGS.items():
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with self.subTest(brand=brand):
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whitelisted_ecus = {ecu for r in config.requests for ecu in r.whitelist_ecus}
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brand_ecus = {fw[0] for car_fw in VERSIONS[brand].values() for fw in car_fw}
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brand_ecus |= {ecu[0] for ecu in config.extra_ecus}
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# each ecu in brand's fw versions + extra ecus needs to be whitelisted at least once
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ecus_not_whitelisted = brand_ecus - whitelisted_ecus
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ecu_strings = ", ".join([f'Ecu.{ECU_NAME[ecu]}' for ecu in ecus_not_whitelisted])
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self.assertFalse(len(whitelisted_ecus) and len(ecus_not_whitelisted),
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f'{brand.title()}: ECUs not in any FW query whitelists: {ecu_strings}')
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def test_fw_requests(self):
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# Asserts equal length request and response lists
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for brand, config in FW_QUERY_CONFIGS.items():
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with self.subTest(brand=brand):
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for request_obj in config.requests:
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self.assertEqual(len(request_obj.request), len(request_obj.response))
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class TestFwFingerprintTiming(unittest.TestCase):
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N: int = 5
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TOL: float = 0.1
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@staticmethod
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def _run_thread(thread: threading.Thread) -> float:
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params = Params()
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params.put_bool("ObdMultiplexingEnabled", True)
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thread.start()
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t = time.perf_counter()
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while thread.is_alive():
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time.sleep(0.02)
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if not params.get_bool("ObdMultiplexingChanged"):
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params.put_bool("ObdMultiplexingChanged", True)
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return time.perf_counter() - t
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def _benchmark_brand(self, brand, num_pandas):
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fake_socket = FakeSocket()
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brand_time = 0
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for _ in range(self.N):
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thread = threading.Thread(target=get_fw_versions, args=(fake_socket, fake_socket, brand),
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kwargs=dict(num_pandas=num_pandas))
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brand_time += self._run_thread(thread)
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return round(brand_time / self.N, 2)
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def _assert_timing(self, avg_time, ref_time):
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self.assertLess(avg_time, ref_time + self.TOL)
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self.assertGreater(avg_time, ref_time - self.TOL, "Performance seems to have improved, update test refs.")
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def test_startup_timing(self):
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# Tests worse-case VIN query time and typical present ECU query time
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vin_ref_time = 1.0
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present_ecu_ref_time = 0.8
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fake_socket = FakeSocket()
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present_ecu_time = 0.0
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for _ in range(self.N):
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thread = threading.Thread(target=get_present_ecus, args=(fake_socket, fake_socket),
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kwargs=dict(num_pandas=2))
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present_ecu_time += self._run_thread(thread)
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self._assert_timing(present_ecu_time / self.N, present_ecu_ref_time)
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print(f'get_present_ecus, query time={present_ecu_time / self.N} seconds')
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vin_time = 0.0
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for _ in range(self.N):
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thread = threading.Thread(target=get_vin, args=(fake_socket, fake_socket, 1))
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vin_time += self._run_thread(thread)
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self._assert_timing(vin_time / self.N, vin_ref_time)
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print(f'get_vin, query time={vin_time / self.N} seconds')
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def test_fw_query_timing(self):
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total_ref_time = 6.1
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brand_ref_times = {
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1: {
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'body': 0.1,
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'chrysler': 0.3,
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'ford': 0.2,
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'honda': 0.5,
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'hyundai': 0.7,
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'mazda': 0.2,
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'nissan': 0.3,
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'subaru': 0.2,
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'tesla': 0.2,
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'toyota': 1.6,
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'volkswagen': 0.2,
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},
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2: {
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'ford': 0.4,
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'hyundai': 1.1,
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}
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}
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total_time = 0
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for num_pandas in (1, 2):
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for brand, config in FW_QUERY_CONFIGS.items():
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with self.subTest(brand=brand, num_pandas=num_pandas):
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multi_panda_requests = [r for r in config.requests if r.bus > 3]
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if not len(multi_panda_requests) and num_pandas > 1:
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raise unittest.SkipTest("No multi-panda FW queries")
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avg_time = self._benchmark_brand(brand, num_pandas)
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total_time += avg_time
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self._assert_timing(avg_time, brand_ref_times[num_pandas][brand])
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print(f'{brand=}, {num_pandas=}, {len(config.requests)=}, avg FW query time={avg_time} seconds')
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with self.subTest(brand='all_brands'):
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self._assert_timing(total_time, total_ref_time)
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print(f'all brands, total FW query time={total_time} seconds')
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if __name__ == "__main__":
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unittest.main()
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