如何为pytest parametriz给定的每个输入按顺序运行方法

Question

我有两个方法edit_config和get_config，我通过pytest参数化传递参数。问题是，首先对所有输入执行edit config，然后获取\ config。但是我想先运行edit\u config，然后像循环一样为每个输入获取\u config。如何使用pytest参数化来实现这一点？你知道吗

@pytest.mark.parametrize("interval, lacp_mode", [("fast", "active"), ("fast", "passive"), ("slow", "active"),
                                                 ("slow", "passive")])
class Example:
    def test_edit_config(self, interval, mode):
        pass
    def test_get_config(self, interval, mode):
        pass

实际-首先对所有参数化输入运行edit config，然后运行get config

预期的-应该运行编辑配置，然后获得配置像一个周期为每个输入

Answer 1

pytest创建测试并按字母顺序运行它们（默认行为），因此四个test_edit_config测试将在test_get_config测试之前运行。你知道吗

您可以创建一个调用其他测试函数的测试

@pytest.mark.parametrize("interval, lacp_mode", [("fast", "active"), ("fast", "passive"), ("slow", "active"), ("slow", "passive")])
class TestExample:

    def test_config(self, interval, lacp_mode):
        self.__edit_config(interval, lacp_mode)
        self.__get_config(interval, lacp_mode)

    def __edit_config(self, interval, lacp_mode):
        pass

    def __get_config(self, interval, lacp_mode):
        pass

另一个选择是使用pytest-ordering插件并动态添加顺序

def data_provider():
    i = 0
    for data in [("fast", "active"), ("fast", "passive"), ("slow", "active"), ("slow", "passive")]:
        i += 1
        yield pytest.param(data[0], data[1], marks=pytest.mark.run(order=i))


class TestExample:

    @pytest.mark.parametrize('interval, lacp_mode', data_provider())
    def test_edit_config(self, interval, lacp_mode):
        pass

    @pytest.mark.parametrize('interval, lacp_mode', data_provider())
    def test_get_config(self, interval, lacp_mode):
        pass