我的代码使用pytest相当多.示例代码结构如下所示.整个代码库是
python-2.7
- core/__init__.py
- core/utils.py
- #feature
- core/feature/__init__.py
- core/feature/service.py
- #tests
- core/feature/tests/__init__.py
- core/feature/tests/test1.py
- core/feature/tests/test2.py
- core/feature/tests/test3.py
- core/feature/tests/test4.py
- core/feature/tests/test10.py
service.py看起来像这样:
- from modules import stuff
- from core.utils import Utility
- class FeatureManager:
- # lots of other methods
- def execute(self,*args,**kwargs):
- self._execute_step1(*args,**kwargs)
- # some more code
- self._execute_step2(*args,**kwargs)
- utility = Utility()
- utility.doThings(args[0],kwargs['variable'])
feature / tests / *中的所有测试最终都使用core.feature.service.FeatureManager.execute函数.但是,当我运行测试时,我不需要运行utility.doThings().我需要它在生产应用程序运行时发生,但我不希望它在测试运行时发生.
我可以在我的core / feature / tests / test1.py中做类似的事情
- from mock import patch
- class Test1:
- def test_1():
- with patch('core.feature.service.Utility') as MockedUtils:
- exectute_test_case_1()
这会奏效.但是我刚刚在代码库中添加了Utility,我有300多个测试用例.我不想进入每个测试用例并用声明写这个.
我可以编写一个conftest.py来设置一个os级环境变量,core.feature.service.FeatureManager.execute可以决定不执行该实用程序.但是我不知道这是否是这个问题的干净解决方案.
如果有人可以帮助我完成整个会话的全局补丁,我将不胜感激.我想在整个会话期间做全局上面的with block所做的事情.这件事的任何文章都会很棒.
TLDR:如何在运行pytests时创建会话范围的补丁?
解决方法
我添加了一个名为core / feature / conftest.py的文件,看起来像这样
- import logging
- import pytest
- @pytest.fixture(scope="session",autouse=True)
- def default_session_fixture(request):
- """
- :type request: _pytest.python.SubRequest
- :return:
- """
- log.info("Patching core.feature.service")
- patched = mock.patch('core.feature.service.Utility')
- patched.__enter__()
- def unpatch():
- patched.__exit__()
- log.info("Patching complete. Unpatching")
- request.addfinalizer(unpatch)
这并不复杂.这就像在做
- with mock.patch('core.feature.service.Utility') as patched:
- do_things()
但只能在会议范围内.