panda/tests/hitl/2_health.py

import time
import pytest

from panda import Panda


@pytest.mark.skip_panda_types((Panda.HW_TYPE_DOS, ))
def test_voltage(p):
  for _ in range(10):
    voltage = p.health()['voltage']
    assert ((voltage > 11000) and (voltage < 13000))
    time.sleep(0.1)

def test_hw_type(p):
  """
    hw type should be same in bootstub as application
  """

  hw_type = p.get_type()
  mcu_type = p.get_mcu_type()
  assert mcu_type is not None

  app_uid =  p.get_uid()
  usb_serial = p.get_usb_serial()
  assert app_uid == usb_serial

  p.reset(enter_bootstub=True, reconnect=True)
  p.close()
  time.sleep(3)
  with Panda(p.get_usb_serial()) as pp:
    assert pp.bootstub
    assert pp.get_type() == hw_type, "Bootstub and app hw type mismatch"
    assert pp.get_mcu_type() == mcu_type, "Bootstub and app MCU type mismatch"
    assert pp.get_uid() == app_uid

def test_heartbeat(p, panda_jungle):
  panda_jungle.set_ignition(True)
  # TODO: add more cases here once the tests aren't super slow
  p.set_safety_mode(mode=Panda.SAFETY_HYUNDAI, param=Panda.FLAG_HYUNDAI_LONG)
  p.send_heartbeat()
  assert p.health()['safety_mode'] == Panda.SAFETY_HYUNDAI
  assert p.health()['safety_param'] == Panda.FLAG_HYUNDAI_LONG

  # shouldn't do anything once we're in a car safety mode
  p.set_heartbeat_disabled()

  time.sleep(6.)

  h = p.health()
  assert h['heartbeat_lost']
  assert h['safety_mode'] == Panda.SAFETY_SILENT
  assert h['safety_param'] == 0
  assert h['controls_allowed'] == 0

def test_microsecond_timer(p):
  start_time = p.get_microsecond_timer()
  time.sleep(1)
  end_time = p.get_microsecond_timer()

  # account for uint32 overflow
  if end_time < start_time:
    end_time += 2**32

  time_diff = (end_time - start_time) / 1e6
  assert 0.98 < time_diff  < 1.02, f"Timer not running at the correct speed! (got {time_diff:.2f}s instead of 1.0s)"