如何使用xdist运行pytest selenium并使用cli arg驱动程序？

我尝试使用xdist并行运行多个测试，并根据用户的命令行参数确定webdriver，例如 --驾驶员遥控器/铬/等

最后，我尝试将其放入docker，以便可以在gitlab管道中使用

这是我试过的

conftest.py

@pytest.fixture(scope="session")
def setup(request, selenium):
    # Get cli specified driver
    driver = selenium
    driver.get(os.environ.get('server'))

    # Collection
    session = request.node
    for item in session.items:
        cls = item.getparent(pytest.Class)
        setattr(cls.obj, "driver", driver)

    # Teardown when tests finish
    yield driver
    driver.close()

# Collection
        session = request.node
>       for item in session.items:
E       AttributeError: 'Function' object has no attribute 'items'

tests\conftest.py:59: AttributeError

-------------------------------------------------------------------- pytest-selenium --------------------------------------------
Driver log: ...\pytest-426\test_loginValid0\driver.log
URL: *** CENSORED ***
WARNING: Failed to gather log types: Message: unknown command: Cannot call non W3C standard command while in W3C mode

test_login.py

@pytest.mark.usefixtures("setup")
class Test:
    def test_loginValid(self, selenium):
        util.loginEnv(selenium)

这给了我一个错误

========================================================================= ERRORS =========================================================================
_________________________________________________________ ERROR at setup of Test.test_loginValid _________________________________________________________ ScopeMismatch: You tried to access the 'function' scoped fixture 'selenium' with a 'session' scoped request object, involved factories
tests\conftest.py:37:  def setup(request, selenium)
..\appdata\local\programs\python\python37-32\lib\site-packages\pytest_selenium\pytest_selenium.py:205:  def selenium(driver)

如果我试图从安装夹具中删除作用域，我会从conftest.py中得到以下错误

@pytest.fixture(scope="session")
def setup(request, selenium):
    # Get cli specified driver
    driver = selenium
    driver.get(os.environ.get('server'))

    # Collection
    session = request.node
    for item in session.items:
        cls = item.getparent(pytest.Class)
        setattr(cls.obj, "driver", driver)

    # Teardown when tests finish
    yield driver
    driver.close()

# Collection
        session = request.node
>       for item in session.items:
E       AttributeError: 'Function' object has no attribute 'items'

tests\conftest.py:59: AttributeError

-------------------------------------------------------------------- pytest-selenium --------------------------------------------
Driver log: ...\pytest-426\test_loginValid0\driver.log
URL: *** CENSORED ***
WARNING: Failed to gather log types: Message: unknown command: Cannot call non W3C standard command while in W3C mode

---

在没有xdist集合的情况下，执行此方法以前是有效的。如果可能的话，我如何使其工作？我做错了什么？

请求.节点

->

请求.会话

请求.节点

->

请求.会话