How do you debug when a unittest.TestCase fails?

Jean-Paul Calderone exarkun at divmod.com
Thu Jul 19 16:13:47 CEST 2007


On Thu, 19 Jul 2007 09:25:50 -0400, "Emin.shopper Martinian.shopper" <emin.shopper at gmail.com> wrote:
>After poking around the unittest source code, the best solution I could come
>up with was to do
>>>>import unittest; unittest.TestCase.run = lambda self,*args,**kw:
>unittest.TestCase.debug(self)
>
>before running my tests. That patches things so that I can use pdb.pm() when
>a test fails. Still, that seems like an ugly hack and I would think there is
>a better solution...

trial:

  http://twistedmatrix.com/trac/wiki/TwistedTrial

It's distributed with Twisted:

  http://twistedmatrix.com/trac/wiki/Downloads

I don't use unittest directly very much.  I'm only slightly surprised that
it is doing something which breaks post-morteming.  If you want, you could
probably fix it (probably something related to how it handles exceptions
from test methods) and contribute a patch to Python.

Jean-Paul



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