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Re: Skipping decorators in unit tests

From Terry Reedy <tjreedy@udel.edu>
Subject Re: Skipping decorators in unit tests
Date 2013-10-10 21:12 -0400
References <2490050c-61d9-4bfd-bdd5-921e2f95a44b@googlegroups.com>
Newsgroups comp.lang.python
Message-ID <mailman.974.1381453982.18130.python-list@python.org> (permalink)

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On 10/10/2013 10:00 AM, Gilles Lenfant wrote:

To add to the other two responses so far...

> (explaining the title) : my app has functions and methods (and maybe classes in the future) that are decorated by decorators provided by the standard library or 3rd party packages.
>
> But I need to test "undecorated" functions and methods in my unit tests, preferably without adding "special stuffs" in my target tested modules.

Let's assume that the decorator wraps the function in a way that the 
wrapper has a reference to the original function, so it does not disappear.

> Can someone point out good practices or dedicated tools that "remove temporarily" the decorations.

The easiest thing would be to have the decorator add the original 
function as an attribute .wrapped to the wrapper. Then test foo.wrapped. 
If you do not like this 'special stuff', then you would have to 
introspect the wrapper to access the wrapped function. How to do that 
depends on the wrapper.

-- 
Terry Jan Reedy

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Thread

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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