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我想參數化測試場景，所以我不必爲像xUnit樣式測試中的每個場景做單獨的情況。pytest說夾具沒找到，當我不使用一個
這裏是pytest的例子，我試圖複製我自己的用例。
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
上面的工作很好，但是當我嘗試修改它以供我使用，如下所示。我得到一個錯誤，說「轉儲」夾具找不到。我不知道發生了什麼事。這是我第一次使用pytest，所以也許我沒有得到一些東西。
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']
這是我從pytest得到的錯誤。我還應該提到，當我調試測試從不運行時，它在參數裝飾器中的某處失敗。
========================================================================= 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.
.