pytest：如何不运行参数化类方法的所有测试组合？

Question

我有一个测试类，在所有方法中都有参数化。我还想用其他变量参数化一些方法。然而，我不想运行所有的组合（因为它们中的一些总是会失败）

考虑如下：

@pytest.mark.parametrize("base_url", ["api/v1/actions/", "api/v1/quotes/"])
class TestAPIResponse:

    @pytest.mark.parametrize("api_verbose_name", ["ação", "declaração"])
    def test_example(self, api_client, base_url, api_verbose_name):
        ...

使用此配置，我们有4个测试：

1. base_url = "api/v1/actions/"和api_verbose_name = "ação"
2. base_url = "api/v1/quotes/"和api_verbose_name = "declaração"
3. base_url = "api/v1/actions/"和api_verbose_name = "declaração"
4. base_url = "api/v1/quotes/"和api_verbose_name = "ação"

如何使test_example仅运行上述第3和第4个测试

现在我正在通过一个helper函数获取api_verbose_name

def get_api_verbose_name(base_url: str) -> str:
    if "quotes" in base_url:
        api_verbose_name = "declaração"
    if "actions" in base_url:
        api_verbose_name = "ação"

    return api_verbose_name


@pytest.mark.parametrize("base_url", ["api/v1/actions/", "api/v1/quotes/"])
class TestAPIResponse:
    
    def test_example(self, api_client, base_url):
        api_verbose_name = get_api_verbose_name(base_url=base_url)
        ...

。。。但这似乎不是我理想的方式

我可以在没有这个helper函数的情况下执行这组测试吗

Answer 1

稍微偏离@AnthonySottile所说的，如果您知道要跳过的端点，可以在对pytest.mark.parametrize的调用中标记它。下面的示例显示了如何利用^{}实现这一点

import pytest


def example(base, api):
    return f"{base}{api}"


@pytest.mark.parametrize("base_url", ["api/v1/actions/", "api/v1/quotes/"])
class TestAPI:
    @pytest.mark.parametrize("api_verbose_name", 
        ["ação", pytest.param("declaração", marks=pytest.mark.skip)]
    )
    def test_example(self, base_url, api_verbose_name):
        result = example(base_url, api_verbose_name)
        assert result == f"{base_url}{api_verbose_name}"

当我们运行测试时，我们可以看到只有两个测试收集了四个测试，因为其余的都被跳过了

collected 4 items                                                                                                                                               

test_foo.py ..ss                                                                                                                                          [100%]

================================================================= 2 passed, 2 skipped in 0.02s ==================================================================