获取Python的unittest会产生tearDown()方法 [英] Getting Python's unittest results in a tearDown() method

问题描述

是否可以在tearDown()方法中获得测试结果(即是否所有断言都通过了)?我正在运行Selenium脚本，我想从tearDown()内部进行一些报告，但是我不知道这是否可行.

Is it possible to get the results of a test (i.e. whether all assertions have passed) in a tearDown() method? I'm running Selenium scripts, and I'd like to do some reporting from inside tearDown(), however I don't know if this is possible.

推荐答案

CAVEAT:目前，我没有办法仔细检查以下理论，因为它们远离开发人员.因此，这可能是在黑暗中拍摄的.

CAVEAT: I have no way of double checking the following theory at the moment, being away from a dev box. So this may be a shot in the dark.

也许您可以在tearDown()方法中检查sys.exc_info()的返回值，如果它返回(None, None, None)，则说明测试用例成功.否则，您可以使用返回的元组来查询异常对象.

Perhaps you could check the return value of sys.exc_info() inside your tearDown() method, if it returns (None, None, None), you know the test case succeeded. Otherwise, you could use returned tuple to interrogate the exception object.

请参见 sys.exc_info 文档.

另一种更明确的方法是编写一个方法装饰器，您可以将其装饰在需要这种特殊处理的所有测试用例方法上.该修饰器可以拦截断言异常，并基于此修饰符来修改self中的某些状态，从而允许您的tearDown方法了解最新情况.

Another more explicit approach is to write a method decorator that you could slap onto all your test case methods that require this special handling. This decorator can intercept assertion exceptions and based on that modify some state in self allowing your tearDown method to learn what's up.

@assertion_tracker
def test_foo(self):
    # some test logic

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