如何为所有鼻子测试测试定义一个设置功能? [英] How can I define one setup function for all nosetests tests?

问题描述

我正在将google app引擎与python结合使用，并希望使用鼻子测试运行一些测试. 我希望每个测试都运行相同的设置功能.我已经有很多测试，所以我不想全部通过测试并复制并粘贴相同的功能.我可以在某个地方定义一个设置功能，并且每个测试都会首先运行它吗?

I'm using google app engine with python and want to run some tests using nosetest. I want each test to run the same setup function. I have already a lot of tests, so I don't want to go through them all and copy&paste the same function. can I define somewhere one setup function and each test would run it first?

谢谢.

推荐答案

您可以编写设置函数，并使用with_setup装饰器将其应用:

You can write your setup function and apply it using the with_setup decorator:

from nose.tools import with_setup


def my_setup():
   ...


@with_setup(my_setup)
def test_one():
    ...


@with_setup(my_setup)
def test_two():
    ...

如果要对多个测试用例使用相同的设置，则可以使用类似的方法. 首先创建设置功能，然后使用装饰器将其应用于所有TestCases:

If you want to use the same setup for several test-cases you can use a similar method. First you create the setup function, then you apply it to all the TestCases with a decorator:

def my_setup(self):
    #do the setup for the test-case

def apply_setup(setup_func):
    def wrap(cls):
        cls.setup = setup_func
        return cls
    return wrap


@apply_setup(my_setup)
class MyTestCaseOne(unittest.TestCase):
    def test_one(self):
        ...
    def test_two(self):
        ...


@apply_setup(my_setup)
class MyTestCaseTwo(unittest.TestCase):
    def test_one(self):
        ...

或者另一种方法是简单地分配您的设置:

Or another way could be to simply assign your setup:

class MyTestCaseOne(unittest.TestCase):
    setup = my_setup

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