浅谈Pytest中的marker

没有注册marker

• 我们写一个简单的测试

# test_demo.py
import pytest

@pytest.mark.login
def test_demo():
    assert True

• 你运行的话会有如下提示

test_demo.py:4: PytestUnknownMarkWarning: Unknown pytest.mark.login - is this a typo?  You can register custom marks to avoid this warning - for details, see https://docs.pytest.org/en/stable/how-to/mark.html
    @pytest.mark.login

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html

• 上面两个文档值得你的仔细阅读

注册marker方式一：pytest.ini

• 新建一个文件pytest.ini(在哪里创建?你应该要知道，跟你的项目结构有关)，写入如下内容

[pytest]
markers:
    login: login test demo

• 再次运行就不会有PytestUnknownMarkWarning

注册marker方式二：pytest_configure

• 创建一个conftest.py

  def pytest_configure(config):
      config.addinivalue_line(
          "markers", "login: login test demo"
      )
  

• 效果是一样的

关于marker的其他

• 查询markers

  pytest --markers
  
  # 能查到当前注册的markers
  

• 命令行参数--strict-markers

  pytest.main(['-sv','--strict-markers',__file__])   # 强制markers必须要注册
  

• 或者放pytest.ini中

  [pytest]
  addopts = --strict-markers   
  

• 会产生如下信息

  =================================== ERRORS ====================================
  ________________________ ERROR collecting test_demo.py ________________________
  'login' not found in `markers` configuration option
  =========================== short test summary info ===========================
  ERROR test_demo.py
  !!!!!!!!!!!!!!!!!!! Interrupted: 1 error during collection !!!!!!!!!!!!!!!!!!!!
  ============================== 1 error in 0.08s ===============================
  

• marker是pytest中pick用例的多种方式之一(-m)，其他pick用例的方式比如-k，--allure的几个

    --allure-severities=SEVERITIES_SET
    --allure-epics=EPICS_SET
    --allure-features=FEATURES_SET
    --allure-stories=STORIES_SET
    --allure-ids=IDS_SET  Comma-separated list of IDs.
    --allure-link-pattern=LINK_TYPE:LINK_PATTERN
  

pytest中处理warning的方式考虑单独开个章节讲下 TODO