openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
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#!/usr/bin/env python3
import unittest
from selfdrive.can.parser import CANParser
from selfdrive.can.packer import CANPacker
from selfdrive.boardd.boardd import can_list_to_can_capnp
from selfdrive.car.honda.interface import CarInterface as HondaInterface
from selfdrive.car.honda.values import CAR as HONDA_CAR
from selfdrive.car.honda.values import DBC as HONDA_DBC
from selfdrive.car.subaru.interface import CarInterface as SubaruInterface
from selfdrive.car.subaru.values import CAR as SUBARU_CAR
from selfdrive.car.subaru.values import DBC as SUBARU_DBC
class TestCanParserPacker(unittest.TestCase):
def test_civic(self):
CP = HondaInterface.get_params(HONDA_CAR.CIVIC)
signals = [
("STEER_TORQUE", "STEERING_CONTROL", 0),
("STEER_TORQUE_REQUEST", "STEERING_CONTROL", 0),
]
checks = []
parser = CANParser(HONDA_DBC[CP.carFingerprint]['pt'], signals, checks, 0)
packer = CANPacker(HONDA_DBC[CP.carFingerprint]['pt'])
idx = 0
for steer in range(0, 255):
for active in [1, 0]:
values = {
"STEER_TORQUE": steer,
"STEER_TORQUE_REQUEST": active,
}
msgs = packer.make_can_msg("STEERING_CONTROL", 0, values, idx)
bts = can_list_to_can_capnp([msgs])
parser.update_string(bts)
self.assertAlmostEqual(parser.vl["STEERING_CONTROL"]["STEER_TORQUE"], steer)
self.assertAlmostEqual(parser.vl["STEERING_CONTROL"]["STEER_TORQUE_REQUEST"], active)
self.assertAlmostEqual(parser.vl["STEERING_CONTROL"]["COUNTER"], idx % 4)
idx += 1
def test_subaru(self):
# Subuaru is little endian
CP = SubaruInterface.get_params(SUBARU_CAR.IMPREZA)
signals = [
("Counter", "ES_LKAS", 0),
("LKAS_Output", "ES_LKAS", 0),
("LKAS_Request", "ES_LKAS", 0),
("SET_1", "ES_LKAS", 0),
]
checks = []
parser = CANParser(SUBARU_DBC[CP.carFingerprint]['pt'], signals, checks, 0)
packer = CANPacker(SUBARU_DBC[CP.carFingerprint]['pt'])
idx = 0
for steer in range(0, 255):
for active in [1, 0]:
values = {
"Counter": idx,
"LKAS_Output": steer,
"LKAS_Request": active,
"SET_1": 1
}
msgs = packer.make_can_msg("ES_LKAS", 0, values)
bts = can_list_to_can_capnp([msgs])
parser.update_string(bts)
self.assertAlmostEqual(parser.vl["ES_LKAS"]["LKAS_Output"], steer)
self.assertAlmostEqual(parser.vl["ES_LKAS"]["LKAS_Request"], active)
self.assertAlmostEqual(parser.vl["ES_LKAS"]["SET_1"], 1)
self.assertAlmostEqual(parser.vl["ES_LKAS"]["Counter"], idx % 16)
idx += 1
if __name__ == "__main__":
unittest.main()