pytest xfail的使用

@pytest.mark.xfail：

期望测试用例是失败的，但是不会影响测试用例的的执行;

如果测试用例执行失败的则结果是xfail（不会额外显示出错误信息）;

如果测试用例执行成功的则结果是xpass;

import pytest
class TestClass():
    @pytest.mark.xfail
    def test_one(self):
        print("test_one方法执行")
        assert  1==2

    def test_two(self):
        print("test_two方法执行")
        assert  'o' in 'love'

    def test_three(self):
        print("test_three方法执行")
        assert 3-2==1

执行结果：

C:\Users\cale\checkapi\test>pytest test_gy.py -v
=========================================================================================================== test session starts ============================================================================================================
platform win32 -- Python 3.7.3, pytest-5.2.1, py-1.8.0, pluggy-0.13.0 -- c:\users\ipharmacare\python37\python.exe
cachedir: .pytest_cache
metadata: {'Python': '3.7.3', 'Platform': 'Windows-10-10.0.17134-SP0', 'Packages': {'pytest': '5.2.1', 'py': '1.8.0', 'pluggy': '0.13.0'}, 'Plugins': {'html': '2.0.0', 'metadata': '1.8.0', 'rerunfailures': '7.0'}}
rootdir: C:\Users\cale\checkapi\test
plugins: html-2.0.0, metadata-1.8.0, rerunfailures-7.0
collected 3 items

test_gy.py::TestClass::test_one XFAIL [ 33%]
test_gy.py::TestClass::test_two PASSED [ 66%]
test_gy.py::TestClass::test_three PASSED [100%]

======================================================================================================= 2 passed, 1 xfailed in 0.31s =======================================================================================================

pytest.fail(reason=' ')：

在测试用例中调用，该方法之后的代码不再运行，结果中标记为xfail

import pytest
class TestClass():

    def test_one(self):
        print("test_one方法执行")
        pytest.xfail(reason='该功能尚未完善')
        assert  1==1

    def test_two(self):
        print("test_two方法执行")
        assert  'o' in 'love'

    def test_three(self):
        print("test_three方法执行")
        assert 3-2==1

运行结果：

C:\Users\cale\checkapi\test>pytest test_gy.py -v
=========================================================================================================== test session starts ============================================================================================================
platform win32 -- Python 3.7.3, pytest-5.2.1, py-1.8.0, pluggy-0.13.0 -- c:\users\ipharmacare\python37\python.exe
cachedir: .pytest_cache
metadata: {'Python': '3.7.3', 'Platform': 'Windows-10-10.0.17134-SP0', 'Packages': {'pytest': '5.2.1', 'py': '1.8.0', 'pluggy': '0.13.0'}, 'Plugins': {'html': '2.0.0', 'metadata': '1.8.0', 'rerunfailures': '7.0'}}
rootdir: C:\Users\cale\checkapi\test
plugins: html-2.0.0, metadata-1.8.0, rerunfailures-7.0
collected 3 items

test_gy.py::TestClass::test_one XFAIL [ 33%]
test_gy.py::TestClass::test_two PASSED [ 66%]
test_gy.py::TestClass::test_three PASSED [100%]

======================================================================================================= 2 passed, 1 xfailed in 0.35s =======================================================================================================