pytest使用自定义标记mark

#coding=utf-8
import pytest

@pytest.mark.weibo
def test_weibo():
    print("测试微博")

@pytest.mark.toutiao
def test_toutiao():
    print("测试头条")

def test_nothing():
    print("没有标记")

@pytest.mark.testmark
class TestMark:
    def test_mark(self):
        print("测试类标记")

if __name__ == '__main__':
    pytest.main(["-s","-m weibo","test_mark.py"])
    
"""
pytest.main(["-m", "run_first"])
使用-m 对用例进行标记，用例需注释@pytest.mark.xxx,将xxx作为参数传入
使用-m "mark1 and mark2"可以同时选中带有这两个标记的所有测试用例。
使用-m "mark1 and not mark2"选中带有与mark1的测试用例，而过滤掉带有mark2的测试用例
使用-m "mark1 or mark2"则选中带有mark1或者mark2的所有测试用例



结果：
collected 4 items / 3 deselected / 1 selected

test_mark.py 测试微博
.

============================== warnings summary ===============================
test_mark.py:4
  E:\ProjectStudy\Pytest框架\test_mark.py:4: PytestUnknownMarkWarning: Unknown pytest.mark.weibo - 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.weibo

test_mark.py:8
  E:\ProjectStudy\Pytest框架\test_mark.py:8: PytestUnknownMarkWarning: Unknown pytest.mark.toutiao - 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.toutiao

test_mark.py:15
  E:\ProjectStudy\Pytest框架\test_mark.py:15: PytestUnknownMarkWarning: Unknown pytest.mark.testmark - 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.testmark

-- Docs: https://docs.pytest.org/en/stable/warnings.html
================= 1 passed, 3 deselected, 3 warnings in 0.20s =================

"""