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.