python - pytest 说当我不使用时找不到 fixture

Question

我正在尝试参数化测试场景，这样我就不必像在 xUnit 样式测试中那样为每个场景制作单独的案例。

这是我试图为自己的用例复制的 pytest 示例。

    from datetime import datetime, timedelta

testdata = [
    (datetime(2001, 12, 12), datetime(2001, 12, 11), timedelta(1)),
    (datetime(2001, 12, 11), datetime(2001, 12, 12), timedelta(-1)),
]


@pytest.mark.parametrize("a,b,expected", testdata)
def test_timedistance_v0(a, b, expected):
    diff = a - b
    assert diff == expected

上面的工作正常，但是当我尝试修改它以供我使用时，如下所示。我收到一条错误消息，提示未找到“转储” fixture 。我不明白发生了什么。这是我第一次使用 pytest，所以我可能没有得到什么。

dump1 = load_dump(pathtodump1,pathtodump2) # load_dump can take multiple params
dump2 = load_dump(pathtodump3)

scenarios = [(dump1,{'prod_str':None}),
             (dump2,{'prod_str':"123"})]

@pytest.mark.paramaterize("dump,expected_meta", scenarios)
def test_metadump_profiles(dump, expected_meta):
        meta = dump.meta
        assert meta.prod_str == expected_meta['prod_str']

这是我从 pytest 得到的错误。我还应该提到，当我调试时，测试从未运行，它在 paramaterize 装饰器的某个地方失败了。

========================================================================= ERRORS ==========================================================================
________________________________________________________ ERROR at setup of test_metadump_profiles _________________________________________________________
file /x/x/x-x/x/x/x/x/x/x/test_x.py, line 81
  @pytest.mark.paramaterize("dump,expect_meta", scenarios)
  def test_metadump_profiles(dump, expect_meta):
        fixture 'dump' not found
        available fixtures: capfd, capsys, recwarn, tmpdir_factory, tmpdir, monkeypatch, pytestconfig, record_xml_property, cache
        use 'py.test --fixtures [testpath]' for help on them.


.

Answer 1

@pytest.mark.paramaterize

这是无效的，pytest 会抛出一个没有意义的模棱两可的错误。这是由拼写错误引起的...

@pytest.mark.parametrize

是有效的拼写。最愚蠢的错误我已经把我的头发拉出来了。 见github issue on this topic for more info.