相关疑难解决方法(0)

我正在使用pytest的参数化注释将params传递给一个类.我能够在测试方法中使用参数,但是,我无法弄清楚如何在setup_class方法中使用这些参数.

import pytest

params = ['A','B','C']

@pytest.mark.parametrize('n', params)
class TestFoo:

    def setup_class(cls):
        print ("setup class:TestFoo")
        # Do some setup based on param

    def test_something(self, n):
        assert n != 'D'

    def test_something_else(self, n):
        assert n != 'D'

我尝试添加'n'作为参数,如测试方法,如下所示:

def setup_class(cls, n):
        print ("setup class:TestFoo")
       # Do some setup based on param

这会导致错误:

self = <Class 'TestFoo'>

    def setup(self):
        setup_class = xunitsetup(self.obj, 'setup_class')
        if setup_class is not None:
            setup_class = getattr(setup_class, 'im_func', setup_class)
            setup_class = getattr(setup_class, '__func__', setup_class)
>           setup_class(self.obj)
E           TypeError: …