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Re: Skipping decorators in unit tests

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On 10/10/2013 08:13 PM, Cameron Simpson wrote:
> On 11Oct2013 02:55, Steven D'Aprano <steve+comp.lang.python@pearwood.info> wrote:
>> On Fri, 11 Oct 2013 09:12:38 +1100, Cameron Simpson wrote:
>>> Speaking for myself, I would be include to recast this code:
>>>
>>>    @absolutize
>>>    def addition(a, b):
>>>        return a + b
>>>
>>> into:
>>>
>>>    def _addition(a, b):
>>>        return a + b
>>>    addition = absolutize(_addition)
>>>
>>> Then you can unit test both _addition() and addition().
>>
>> *shudders*
>> Ew ew ew ew.
>
> Care to provide some technical discourse here? Aside from losing the neat
> and evocative @decorator syntax, the above is simple and overt.

And completely dismisses the whole point of adding @decorator to the 
language:  easy to use, easy to see == folks will actually use it.

>> I would much rather do something like this:
>>
>> def undecorate(f):
>>      """Return the undecorated inner function from function f."""
>>      return f.func_closure[0].cell_contents
>
> Whereas this feels like black magic. Is this portable to any decorated
> function? If so, I'd have hoped it was in the stdlib. If not: black magic.

Probably black magic.  But you can go with the decorator.wrapped route; 
after all, you're testing your own stuff so you should have control of 
your own decorators (okay, you may have to adapt a few others ;) .

--
~Ethan~

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Skipping decorators in unit tests Gilles Lenfant <gilles.lenfant@gmail.com> - 2013-10-10 07:00 -0700
  Re: Skipping decorators in unit tests Cameron Simpson <cs@zip.com.au> - 2013-10-11 09:12 +1100
    Re: Skipping decorators in unit tests Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-11 02:55 +0000
      Re: Skipping decorators in unit tests Cameron Simpson <cs@zip.com.au> - 2013-10-11 14:13 +1100
        Re: Skipping decorators in unit tests Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-11 04:36 +0000
          Re: Skipping decorators in unit tests Terry Reedy <tjreedy@udel.edu> - 2013-10-11 04:23 -0400
      Re: Skipping decorators in unit tests Ben Finney <ben+python@benfinney.id.au> - 2013-10-11 14:42 +1100
      Re: Skipping decorators in unit tests Terry Reedy <tjreedy@udel.edu> - 2013-10-11 04:17 -0400
      Re: Skipping decorators in unit tests Terry Reedy <tjreedy@udel.edu> - 2013-10-11 04:25 -0400
      Re: Skipping decorators in unit tests Terry Reedy <tjreedy@udel.edu> - 2013-10-11 04:32 -0400
      Re: Skipping decorators in unit tests Ethan Furman <ethan@stoneleaf.us> - 2013-10-11 10:51 -0700
  Re: Skipping decorators in unit tests Ned Batchelder <ned@nedbatchelder.com> - 2013-10-10 19:44 -0400
  Re: Skipping decorators in unit tests Terry Reedy <tjreedy@udel.edu> - 2013-10-10 21:12 -0400
  Re: Skipping decorators in unit tests Gilles Lenfant <gilles.lenfant@gmail.com> - 2013-10-11 02:37 -0700
    Re: Skipping decorators in unit tests Cameron Simpson <cs@zip.com.au> - 2013-10-12 08:38 +1100

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