当写的用例比较多的的时候，我们需要对测试用例进行模块划分，比如，抽出一部分作为冒烟用例。部分用例只能在安卓系统上运行，部分用例只能在IOS上运行等等 这时候就要用到 @pytest.mark 的功能，给每条用例打上标签，方便运行

使用案例

import pytest
import sys


class Test_Mark():
    def test_mark_01(self):
        assert(1 == 1)

    @pytest.mark.IOS
    @pytest.mark.smokeTest
    def test_mark_02(self):
        print("run in IOS")

    @pytest.mark.Android
    def test_mark_03(self):
        print("run in Android")

    @pytest.mark.IOS
    def test_mark_04(self):
        print("run in IOS")


if __name__ == '__main__':
    #pytest.main(['MyPytest.py', '-m', 'smokeTest'])
    #pytest.main(['MyPytest.py', '-m', 'IOS'])
    pytest.main(['MyPytest.py', '-m', 'smokeTest and IOS'])

运行结果： collected 4 items / 3 deselected / 1 selected

collected 4 items / 3 deselected / 1 selected

MyPytest.py .                                                            [100%]

============================== warnings summary ===============================
MyPytest.py:9
MyPytest.py:9: PytestUnknownMarkWarning: Unknown pytest.mark.IOS - is this a typo?  You can register custom marks to avoid this warning - for details, see https://docs.pytest.org/en/stable/mark.html
@pytest.mark.IOS

MyPytest.py:10
MyPytest.py:10: PytestUnknownMarkWarning: Unknown pytest.mark.smokeTest - is this a typo?  You can register custom marks to avoid this warning - for details, see https://docs.pytest.org/en/stable/mark.html
@pytest.mark.smokeTest

MyPytest.py:14
MyPytest.py:14: PytestUnknownMarkWarning: Unknown pytest.mark.Android - is this a typo?  You can register custom marks to avoid this warning - for details, see https://docs.pytest.org/en/stable/mark.html
@pytest.mark.Android

MyPytest.py:18
MyPytest.py:18: PytestUnknownMarkWarning: Unknown pytest.mark.Android - is this a typo?  You can register custom marks to avoid this warning - for details, see https://docs.pytest.org/en/stable/mark.html
@pytest.mark.Android

-- Docs: https://docs.pytest.org/en/stable/warnings.html
================= 1 passed, 3 deselected, 4 warnings in 0.07s =================

***Repl Closed**

解决PytestUnknownMarkWarning的问题

• 创建一个 pytest.ini 文件（后续详解）
• 加上自定义 mark，如下

注意：pytest.ini 需要和运行的测试用例同一个目录，或在根目录下作用于全局

运行参数说明

• pytest -m "key1 or key2" #运行有key1标识或key2标识用例
• pytest -m "key1 and key2" #运行有key1和key2标识的用例
• pytest -m "not key1" #运行除了key1之外的标识的用例
• pytest -m "key1 and not key2" #运行有key1和没有key2标识的用例