What should I do if the scope of the parametrize is overridden by the fixture?

[1766569880]

There is a situation where the scope of @pytest.mark.parametrize and @pytest.fixture is overwritten, I think the fixture is the module level, and the parametrize is the function level should not be overridden. The parametrize is executed multiple times, and the fixture is executed only once

import time
import pytest
from lib.smp import smpUi
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import Select
import cfg


@pytest.fixture(scope='module',autouse=True)
def inDeviceModelMgr():
    try:
        smpUi.login(cfg.SMP_LOGIN_USERNAME, cfg.SMP_LOGIN_PASSWORD)
        smpUi.wb.get(cfg.SMP_DEVICEMODEL_URL)
        time.sleep(0.5)
        addBtn = smpUi.wb.find_element(By.CSS_SELECTOR, '.add-one-area > span')
        if "添加" == addBtn.text:
            addBtn.click()
        elif "取消" == addBtn.text:
            addBtn.click()
            addBtn.click()
        else:
            print("找不到确定按钮")
            assert False
    except Exception as e:
        print(e)


@pytest.mark.parametrize('deviceType ,deviceModel ,deviceModelDesc', [
    ('存储柜', 'elife-canbinlocker-g22-10-20-40', '南京e生活存储柜-10大20中40小'),
    ('存储柜',
     '如果选择列表中的某行进行编辑或者是删除操作？思路：列表中的编辑和操作按钮前端开发人员写的时候会写的固定方式，这里可以使用find_elements来查找一组edit或者是删除按钮，然后选择其中的一个，进行点击，就实现了追踪的edit和删',
     '南京e生活存储柜-10大20中40小'),
    ('电瓶车充电站', 'bokpower-charger-g22-220v450w', '杭州bok 2022款450瓦 电瓶车充电站'),
    ('洗车站', 'njcw-carwasher-g22-2s', '南京e生活2022款洗车机 2个洗车位'),
    ('汽车充电站', 'yixun-charger-g22-220v7kw', '南京易迅能源2022款7千瓦汽车充电站'),
],scope='function')
def test_SMP_device_model_0012_12301(deviceType, deviceModel, deviceModelDesc):
    select = Select(smpUi.wb.find_element(By.ID, "device-type"))
    deviceModelEl = smpUi.wb.find_element(By.ID, 'device-model')
    deviceModelDescEl = smpUi.wb.find_element(By.ID, 'device-model-desc')

    select.select_by_visible_text(deviceType)
    deviceModelEl.clear()
    deviceModelEl.send_keys(deviceModel)
    deviceModelDescEl.send_keys(deviceModelDesc)
    accesBtn = smpUi.wb.find_element(By.CSS_SELECTOR, '.add-one-submit-btn-div > span')
    accesBtn.click()

    item = smpUi.wb.find_elements(By.CSS_SELECTOR, '.result-list > .result-list-item')[0]
    values = item.find_elements(By.CSS_SELECTOR, '.result-list-item-info > .field > .field-value')
    for i, value in enumerate(values):
        if i == 0:
            assert deviceType == value.text
        elif i == 1:
            assert deviceModel == value.text
        elif i == 2:
            assert deviceModelDesc == value.text

[portyu9]

Hi @1766569880

The behavior in your example is expected.

These two scopes are independent:

@pytest.fixture(scope="module", autouse=True)
def inDeviceModelMgr():
    ...

means inDeviceModelMgr runs once for the module.

Meanwhile:

@pytest.mark.parametrize(..., scope="function")

means the parametrized test gets one invocation per parameter set.

So with five parameter rows, the expected result is:

inDeviceModelMgr setup: once
test: 5 times

The parametrization does not change the scope of that unrelated autouse fixture.

If you need the setup in inDeviceModelMgr to run separately for every parameter row, make the fixture function-scoped:

@pytest.fixture(scope="function", autouse=True)
def inDeviceModelMgr():
    ...

If instead the fixture itself needs to receive the parameter value, use indirect parametrization of that fixture.

There is also a separate issue in the example:

except Exception as e:
    print(e)

swallows setup failures. If fixture setup fails, normally you should re-raise the exception so pytest reports the test as an error rather than continuing with an invalid state.

Please mark this answer as accepted if it helped, thank you.