您当前的test_user_fixture装置将返回一个登录/密码列表.我确信您正在使用yield，因为您希望稍后进行一些清理(例如，删除用户).

我的建议是让test_user_fixture只返回一个登录/密码.然后，我们可以使用关键字params=对该灯具进行参数化:

# conftest.py
import logging

import pytest

def user_data_generator():
    """Mocked"""
    return [
        ("user1", "password1"),
        ("user2", "password2"),
    ]

USERS_DATA = list(user_data_generator())

def test_id(user_data):
    """Given (login, password), return the login part.

    We use this login as part of the test ID
    """
    return user_data[0]


@pytest.fixture(scope="session", autouse=True, params=USERS_DATA, ids=test_id)
def test_user_fixture(request):
    login, password = request.param[:2]
    logging.debug("In test_user_fixture, login=%r, password=%r", login, password)

    if send_user_create_request((login, password)) != 200:
        pytest.exit("ERROR | Test user wasn't created")
    yield login, password

    logging.info("Clearing test data")

和

# test_login_page.py
import logging


class TestPositiveLogin:
    def test_positive_login(self, webdriver_fixture, test_user_fixture):
        login, password = test_user_fixture
        logging.debug("webdriver_fixture=%r", webdriver_fixture)
        logging.debug("login=%r", login)
        logging.debug("password=%r", password)

和

# pyproject.toml
[tool.pytest.ini_options]
log_cli="true"
log_level="DEBUG"

log_cli="false"时的输出:

test_login_page.py::TestPositiveLogin::test_positive_login[user1] PASSED
test_login_page.py::TestPositiveLogin::test_positive_login[user2] PASSED

log_cli="true"时的输出:

test_login_page.py::TestPositiveLogin::test_positive_login[user1]
---------------------------------------------------------------------- live log setup ----------------------------------------------------------------------
DEBUG    root:conftest.py:26 In test_user_fixture, login='user1', password='password1'
---------------------------------------------------------------------- live log call -----------------------------------------------------------------------
DEBUG    root:test_login_page.py:8 webdriver_fixture='Mocked WebDriver'
DEBUG    root:test_login_page.py:9 login='user1'
DEBUG    root:test_login_page.py:10 password='password1'
PASSED
test_login_page.py::TestPositiveLogin::test_positive_login[user2]
---------------------------------------------------------------------- live log setup ----------------------------------------------------------------------
INFO     root:conftest.py:32 Clearing test data for login='user1'
DEBUG    root:conftest.py:26 In test_user_fixture, login='user2', password='password2'
---------------------------------------------------------------------- live log call -----------------------------------------------------------------------
DEBUG    root:test_login_page.py:8 webdriver_fixture='Mocked WebDriver'
DEBUG    root:test_login_page.py:9 login='user2'
DEBUG    root:test_login_page.py:10 password='password2'
PASSED
-------------------------------------------------------------------- live log teardown ---------------------------------------------------------------------
INFO     root:conftest.py:32 Clearing test data for login='user2'

备注

• 假设USERS_DATA包含[(user, password, ...), ...]

• 这params=USERS_DATA个人将灯具参数化.即使该装置的作用域是会话级别的，它也将为USERS_DATA中的每个元素调用一次.换句话说，如果USERS_DATA包含2个元素，则该装置将被调用两次.

• test_id()函数从测试参数中提取login，从而提供了一种更好地识别测试的方法.

• test_user_fixture返回(login, password)的元组，因此在测试中，我们将其解包以使其更容易:

    login, password = test_user_fixture
  

• 我更喜欢用logging而不是print，因为我可以通过这条线路打开/关闭pyproject.toml:

    log_cli="true"
  

  just replace true with false 和 I can effectively turn off all logging. I can also control the log level (e.g. WARN, INFO, DEBUG, ...) with this line:

    log_level="DEBUG"
  

Update

如果go 掉ids=部分，则输出将如下所示:

test_login_page.py::TestPositiveLogin::test_positive_login[test_user_fixture0] PASSED
test_login_page.py::TestPositiveLogin::test_positive_login[test_user_fixture1] PASSED

Notice the part inside the square brackets test_user_fixture0 和 test_user_fixture1: they are IDs which pytest generate automatically 和 they are not helpful.

我想要放在这些方括号中的是ID，它们很有用，比如login.

根据pytest doc的说法，ids=可能是一系列ID.这意味着以下内容的工作方式相同:

USERS_DATA = list(user_data_generator())
TEST_IDS = [user_data[0] for user_data in USERS_DATA]
@pytest.fixture(
    scope="session",
    autouse=True,
    params=USERS_DATA,
    ids=TEST_IDS,
)
def test_user_fixture(request):
    ...

例如，如果USERS_DATA是

[
    ("user1", "password1"),
    ("user2", "password2"),
]

那么，TEST_IDS美元将是

[
    "user1",
    "user2",
]

And these IDs will be used inside of the square brackets. Note that the ids= can also be a function which take in a single element of the params= parameter 和 return an ID. In this case we have:

USERS_DATA = list(user_data_generator())
def test_id(user_data):
    # Example of user_data: ("user1", "password1")
    return user_data[0]

@pytest.fixture(
    scope="session",
    autouse=True,
    params=USERS_DATA,
    ids=test_id,
)
def test_user_fixture(request):
    ...

That means pytest will pass each element in USERS_DATA into the function test_id 和 use the return value as the ID.

Which method should we use? I believe the first method with TEST_IDS are easier to underst和. The second method is more powerful 和 that is what I use in my projects.