[Python-Dev] Proposed unittest changes

Guido van Rossum guido at python.org
Fri Apr 18 00:34:53 CEST 2008

On Thu, Apr 17, 2008 at 3:31 PM, Jonathan Lange <jml at mumak.net> wrote:
> On Thu, Apr 17, 2008 at 11:49 PM, Michael Foord
>  <fuzzyman at voidspace.org.uk> wrote:
>  >     assert_raises_with_message    (exc_class, message, callable, *args,
>  >  **keywargs)
>  >
>  I don't think this one should go in.
>  I think it would be better if assertRaises just returned the exception
>  object that it catches. That way, you can test properties of the
>  exception other than its message.

Hm. I've got to say that returning the exception object is, um, an odd
API in the set of unittest APIs. I can see how it's sometimes more
powerful, but I'd say that in many cases assertRaisesWithMessage will
be easier to write and read. (And making it a regex match would be
even cooler.)

--Guido van Rossum (home page: http://www.python.org/~guido/)

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