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test_chrysler.py
executable file
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test_chrysler.py
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#!/usr/bin/env python3
import unittest
import numpy as np
from panda import Panda
from panda.tests.safety import libpandasafety_py
from panda.tests.safety.common import test_relay_malfunction, make_msg, test_manually_enable_controls_allowed, test_spam_can_buses
MAX_RATE_UP = 3
MAX_RATE_DOWN = 3
MAX_STEER = 261
MAX_RT_DELTA = 112
RT_INTERVAL = 250000
MAX_TORQUE_ERROR = 80
TX_MSGS = [[571, 0], [658, 0], [678, 0]]
class TestChryslerSafety(unittest.TestCase):
@classmethod
def setUp(cls):
cls.safety = libpandasafety_py.libpandasafety
cls.safety.set_safety_hooks(Panda.SAFETY_CHRYSLER, 0)
cls.safety.init_tests_chrysler()
def _button_msg(self, buttons):
to_send = make_msg(0, 571)
to_send[0].RDLR = buttons
return to_send
def _set_prev_torque(self, t):
self.safety.set_chrysler_desired_torque_last(t)
self.safety.set_chrysler_rt_torque_last(t)
self.safety.set_chrysler_torque_meas(t, t)
def _torque_meas_msg(self, torque):
to_send = make_msg(0, 544)
to_send[0].RDHR = ((torque + 1024) >> 8) + (((torque + 1024) & 0xff) << 8)
return to_send
def _torque_msg(self, torque):
to_send = make_msg(0, 0x292)
to_send[0].RDLR = ((torque + 1024) >> 8) + (((torque + 1024) & 0xff) << 8)
return to_send
def test_spam_can_buses(self):
test_spam_can_buses(self, TX_MSGS)
def test_relay_malfunction(self):
test_relay_malfunction(self, 0x292)
def test_default_controls_not_allowed(self):
self.assertFalse(self.safety.get_controls_allowed())
def test_steer_safety_check(self):
for enabled in [0, 1]:
for t in range(-MAX_STEER*2, MAX_STEER*2):
self.safety.set_controls_allowed(enabled)
self._set_prev_torque(t)
if abs(t) > MAX_STEER or (not enabled and abs(t) > 0):
self.assertFalse(self.safety.safety_tx_hook(self._torque_msg(t)))
else:
self.assertTrue(self.safety.safety_tx_hook(self._torque_msg(t)))
def test_manually_enable_controls_allowed(self):
test_manually_enable_controls_allowed(self)
def test_enable_control_allowed_from_cruise(self):
to_push = make_msg(0, 0x1F4)
to_push[0].RDLR = 0x380000
self.safety.safety_rx_hook(to_push)
self.assertTrue(self.safety.get_controls_allowed())
def test_disable_control_allowed_from_cruise(self):
to_push = make_msg(0, 0x1F4)
to_push[0].RDLR = 0
self.safety.set_controls_allowed(1)
self.safety.safety_rx_hook(to_push)
self.assertFalse(self.safety.get_controls_allowed())
def test_non_realtime_limit_up(self):
self.safety.set_controls_allowed(True)
self._set_prev_torque(0)
self.assertTrue(self.safety.safety_tx_hook(self._torque_msg(MAX_RATE_UP)))
self._set_prev_torque(0)
self.assertFalse(self.safety.safety_tx_hook(self._torque_msg(MAX_RATE_UP + 1)))
def test_non_realtime_limit_down(self):
self.safety.set_controls_allowed(True)
self.safety.set_chrysler_rt_torque_last(MAX_STEER)
torque_meas = MAX_STEER - MAX_TORQUE_ERROR - 20
self.safety.set_chrysler_torque_meas(torque_meas, torque_meas)
self.safety.set_chrysler_desired_torque_last(MAX_STEER)
self.assertTrue(self.safety.safety_tx_hook(self._torque_msg(MAX_STEER - MAX_RATE_DOWN)))
self.safety.set_chrysler_rt_torque_last(MAX_STEER)
self.safety.set_chrysler_torque_meas(torque_meas, torque_meas)
self.safety.set_chrysler_desired_torque_last(MAX_STEER)
self.assertFalse(self.safety.safety_tx_hook(self._torque_msg(MAX_STEER - MAX_RATE_DOWN + 1)))
def test_exceed_torque_sensor(self):
self.safety.set_controls_allowed(True)
for sign in [-1, 1]:
self._set_prev_torque(0)
for t in np.arange(0, MAX_TORQUE_ERROR + 2, 2): # step needs to be smaller than MAX_TORQUE_ERROR
t *= sign
self.assertTrue(self.safety.safety_tx_hook(self._torque_msg(t)))
self.assertFalse(self.safety.safety_tx_hook(self._torque_msg(sign * (MAX_TORQUE_ERROR + 2))))
def test_realtime_limit_up(self):
self.safety.set_controls_allowed(True)
for sign in [-1, 1]:
self.safety.init_tests_chrysler()
self._set_prev_torque(0)
for t in np.arange(0, MAX_RT_DELTA+1, 1):
t *= sign
self.safety.set_chrysler_torque_meas(t, t)
self.assertTrue(self.safety.safety_tx_hook(self._torque_msg(t)))
self.assertFalse(self.safety.safety_tx_hook(self._torque_msg(sign * (MAX_RT_DELTA + 1))))
self._set_prev_torque(0)
for t in np.arange(0, MAX_RT_DELTA+1, 1):
t *= sign
self.safety.set_chrysler_torque_meas(t, t)
self.assertTrue(self.safety.safety_tx_hook(self._torque_msg(t)))
# Increase timer to update rt_torque_last
self.safety.set_timer(RT_INTERVAL + 1)
self.assertTrue(self.safety.safety_tx_hook(self._torque_msg(sign * MAX_RT_DELTA)))
self.assertTrue(self.safety.safety_tx_hook(self._torque_msg(sign * (MAX_RT_DELTA + 1))))
def test_torque_measurements(self):
self.safety.safety_rx_hook(self._torque_meas_msg(50))
self.safety.safety_rx_hook(self._torque_meas_msg(-50))
self.safety.safety_rx_hook(self._torque_meas_msg(0))
self.safety.safety_rx_hook(self._torque_meas_msg(0))
self.safety.safety_rx_hook(self._torque_meas_msg(0))
self.safety.safety_rx_hook(self._torque_meas_msg(0))
self.assertEqual(-50, self.safety.get_chrysler_torque_meas_min())
self.assertEqual(50, self.safety.get_chrysler_torque_meas_max())
self.safety.safety_rx_hook(self._torque_meas_msg(0))
self.assertEqual(0, self.safety.get_chrysler_torque_meas_max())
self.assertEqual(-50, self.safety.get_chrysler_torque_meas_min())
self.safety.safety_rx_hook(self._torque_meas_msg(0))
self.assertEqual(0, self.safety.get_chrysler_torque_meas_max())
self.assertEqual(0, self.safety.get_chrysler_torque_meas_min())
def test_cancel_button(self):
CANCEL = 1
for b in range(0, 0xff):
if b == CANCEL:
self.assertTrue(self.safety.safety_tx_hook(self._button_msg(b)))
else:
self.assertFalse(self.safety.safety_tx_hook(self._button_msg(b)))
def test_fwd_hook(self):
buss = list(range(0x0, 0x3))
msgs = list(range(0x1, 0x800))
blocked_msgs = [658, 678]
for b in buss:
for m in msgs:
if b == 0:
fwd_bus = 2
elif b == 1:
fwd_bus = -1
elif b == 2:
fwd_bus = -1 if m in blocked_msgs else 0
# assume len 8
self.assertEqual(fwd_bus, self.safety.safety_fwd_hook(b, make_msg(b, m, 8)))
if __name__ == "__main__":
unittest.main()