pytest:指出由于NotImplementedError导致的测试失败

有可能 mark tests as expected to fail ,所以这样的东西将有助于区分 NotImplementedError s来自测试实际失败:

import pytest

def func(x):
    return x + 1

def func_var(x):
    raise NotImplementedError

@pytest.mark.xfail(raises=NotImplementedError)
def test_answer():
    assert func(3) == 5

@pytest.mark.xfail(raises=NotImplementedError)
def test_answer_var():
    assert func_var(3) == 4

我不能告诉你它在VS中的样子,但控制台版本已经很有前途了:

$> pytest
============================= test session starts =============================
platform win32 -- Python 3.9.6, pytest-7.1.1, pluggy-1.0.0
rootdir: c:\Projects\Eigene\pytest
plugins: Faker-13.3.5
collected 2 items

test_first.py Fx                                                         [100%]

================================== FAILURES ===================================
_________________________________ test_answer _________________________________

    @pytest.mark.xfail(raises=NotImplementedError)
    def test_answer():
>       assert func(3) == 5
E       assert 4 == 5
E        +  where 4 = func(3)

test_first.py:11: AssertionError
=========================== short test summary info ===========================
FAILED test_first.py::test_answer - assert 4 == 5
======================== 1 failed, 1 xfailed in 0.14s =========================