您如何編寫產生/返回參數化測試參數的夾具（一種方法）？例如，我有一個測試如下：@pytest.mark.parametrize( "input,expected", [("hello", "hello"), ("world", "world")])def test_get_message(self, input, expected): assert expected == MyClass.get_message(input)我對以下方法感興趣，而不是通過input和expected傳遞：@[email protected](scope="session")def test_messages(self): # what should I write here to return multiple # test case with expected value for each? passdef test_get_message(self, test_messages): expected = test_messages["expected"] # somehow extracted from test_messages? input = test_messages["input"] # somehow extracted from test message? assert expected == MyClass.get_message(input)
2 回答
不負相思意
TA貢獻1777條經驗 獲得超10個贊
要將參數移動到夾具中，您可以使用夾具參數：
@pytest.fixture(params=[("hello", "hello"),
("world", "world")], scope="session")
def test_messages(self, request):
return request.param
def test_get_message(self, test_messages):
input = test_messages[0]
expected = test_messages[1]
assert expected == MyClass.get_message(input)
您還可以將參數放入單獨的函數中（與 wih 相同parametrize），例如
def get_test_messages():
return [("hello", "hello"), ("world", "world")]
@pytest.fixture(params=get_test_messages(), scope="session")
def test_messages(self, request):
return request.param
烙印99
TA貢獻1829條經驗 獲得超13個贊
對我來說，你似乎想返回一個字典數組：
@pytest.fixture(scope="session")
def test_messages():
return [
{
"input": "hello",
"expected": "world"
},
{
"input": "hello",
"expected": "hello"
}
]
要在測試用例中使用它，您需要遍歷數組：
def test_get_message(self, test_messages):
for test_data in test_messages:
input = test_data["input"]
expected = test_data["expected"]
assert input == expected
但我不確定這是否是最好的方法，因為它仍然被視為只有一個測試用例，因此它只會在輸出/報告中顯示為一個測試用例。
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