afb2791ccf
Allow specifying the python-can configuration context to use along with the "can" fixture. This opens up for specifying board-specific contexts in the twister hardware map file. Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
69 lines
2.0 KiB
Python
69 lines
2.0 KiB
Python
# Copyright (c) 2024 Vestas Wind Systems A/S
|
|
#
|
|
# SPDX-License-Identifier: Apache-2.0
|
|
|
|
"""
|
|
Configuration of Zephyr CAN <=> host CAN test suite.
|
|
"""
|
|
|
|
import re
|
|
import logging
|
|
import pytest
|
|
|
|
from twister_harness import DeviceAdapter, Shell
|
|
|
|
from can import Bus, BusABC
|
|
from can_shell import CanShellBus
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
def pytest_addoption(parser) -> None:
|
|
"""Add local parser options to pytest."""
|
|
parser.addoption('--can-context', default=None,
|
|
help='Configuration context to use for python-can (default: None)')
|
|
|
|
@pytest.fixture(name='context', scope='session')
|
|
def fixture_context(request, dut: DeviceAdapter) -> str:
|
|
"""Return the name of the python-can configuration context to use."""
|
|
ctx = request.config.getoption('--can-context')
|
|
|
|
if ctx is None:
|
|
for fixture in dut.device_config.fixtures:
|
|
if fixture.startswith('can:'):
|
|
ctx = fixture.split(sep=':', maxsplit=1)[1]
|
|
break
|
|
|
|
logger.info('using python-can configuration context "%s"', ctx)
|
|
return ctx
|
|
|
|
@pytest.fixture(name='chosen', scope='module')
|
|
def fixture_chosen(shell: Shell) -> str:
|
|
"""Return the name of the zephyr,canbus devicetree chosen device."""
|
|
chosen_regex = re.compile(r'zephyr,canbus:\s+(\S+)')
|
|
lines = shell.get_filtered_output(shell.exec_command('can_host chosen'))
|
|
|
|
for line in lines:
|
|
m = chosen_regex.match(line)
|
|
if m:
|
|
chosen = m.groups()[0]
|
|
logger.info('testing on zephyr,canbus chosen device "%s"', chosen)
|
|
return chosen
|
|
|
|
pytest.fail('zephyr,canbus chosen device not found or not ready')
|
|
return None
|
|
|
|
@pytest.fixture
|
|
def can_dut(dut: DeviceAdapter, shell: Shell, chosen: str) -> BusABC:
|
|
"""Return DUT CAN bus."""
|
|
bus = CanShellBus(dut, shell, chosen)
|
|
yield bus
|
|
bus.shutdown()
|
|
dut.clear_buffer()
|
|
|
|
@pytest.fixture
|
|
def can_host(context: str) -> BusABC:
|
|
"""Return host CAN bus."""
|
|
bus = Bus(config_context = context)
|
|
yield bus
|
|
bus.shutdown()
|