? ? ? pytest除了測試函數中使用這個方法pytest.xfail()外，xfail還有一種使用方法。就是@pytest.mark.xfail()標記預期會失敗的用例，即期望測試用例是失敗的，但是不會影響測試用例的的執行。

標記的用例運行后，斷言失敗，所以結果是xfailed，也沒有像正常一樣顯示出錯誤用例及具體信息。

預期會失敗，實際斷言失敗xfailed

#!/usr/bin/env python # _*_coding:utf-8_*_ import pytestclass Test(object):@pytest.mark.xfail(reason="預期失敗")def test_login_01(self):"""用例1"""print('執行用例test_login_01斷言1')pytest.assume(1 == 0)print('執行用例test_login_01斷言2')pytest.assume(2 == 2)if __name__ == '__main__':pytest.main(['-v', '-s', 'test_01.py'])C:\Users\admin\AppData\Local\Programs\Python\Python37\python.exe C:/Users/admin/Desktop/AutoTest/Test/test/test_01/test_01.py ============================= test session starts ============================= platform win32 -- Python 3.7.4, pytest-5.4.2, py-1.8.1, pluggy-0.13.1 -- C:\Users\admin\AppData\Local\Programs\Python\Python37\python.exe cachedir: .pytest_cache rootdir: C:\Users\admin\Desktop\AutoTest\Test\test\test_01 plugins: assume-2.2.1, ordering-0.6 collecting ... 收集的測試用例:[<Function test_login_01>] collected 1 itemtest_01.py::Test::test_login_01 執行用例test_login_01斷言1 執行用例test_login_01斷言2 XFAIL============================= 1 xfailed in 0.07s ==============================Process finished with exit code 0

標記的用例運行后，斷言成功，所以結果是xfailed，也沒有像正常一樣顯示出錯誤用例及具體信息

預期會失敗，實際斷言成功xpassed

#!/usr/bin/env python # _*_coding:utf-8_*_ import pytestclass Test(object):@pytest.mark.xfail()def test_login_02(self):"""用例2"""print('執行用例test_login_02斷言1')pytest.assume(3 == 3)print('執行用例test_login_02斷言2')pytest.assume(True)if __name__ == '__main__':pytest.main(['-v', '-s', 'test_01.py'])C:\Users\admin\AppData\Local\Programs\Python\Python37\python.exe C:/Users/admin/Desktop/AutoTest/Test/test/test_01/test_01.py ============================= test session starts ============================= platform win32 -- Python 3.7.4, pytest-5.4.2, py-1.8.1, pluggy-0.13.1 -- C:\Users\admin\AppData\Local\Programs\Python\Python37\python.exe cachedir: .pytest_cache rootdir: C:\Users\admin\Desktop\AutoTest\Test\test\test_01 plugins: assume-2.2.1, ordering-0.6 collecting ... 收集的測試用例:[<Function test_login_02>] collected 1 itemtest_01.py::Test::test_login_02 執行用例test_login_02斷言1 執行用例test_login_02斷言2 XPASS============================= 1 xpassed in 0.04s ==============================Process finished with exit code 0

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