> Betreff: Re: [Zope-dev] Re: AW: Heads up: Dependencies!
> On Sun, Apr 13, 2008 at 12:25:46PM -0400, Jim Fulton wrote:
> > On Apr 12, 2008, at 10:01 PM, Tres Seaver wrote:
> >> Even better: use the documented setuptools keyword
> >> 'tests_require', and get the testrunner / buildout to use
> that hook
> >> when running tests.
> > This doesn't address the central point that testing a different
> > software configuration in testing than will be used in
> production can
> > lead to unpleasant surprises in production.
> @Roger: I think you might have misunderstood the
> flying-versus-testing argument. *Any* change in the software
> configuration that makes the test environment differ from the
> production environment raises the risk of getting unexpected
> errors. As the world isn't just black and white the two
> extremes (no just-for-test dependencies in production versus
> all-even-just-for-test dependencies in production) could be
> spelled out like this:
> - Minimize the amount of special dependencies that only your
> testing code
> needs. (Only get a new dependency for a test if it's really
> worth it.
> `zope.testing` is an example.)
> - Maximize the amount of dependencies that are shared within
> testing and
> production. (Carrying over `zope.testing` into production
> is an example as
I agree, but that was not the point in my previous mail.
> > FWIW, I think using test extras is a necessary evil when testing
> > dependencies are significant. I wouldn't use it just to avoid a
> > dependency on zope.testing, but I would and have used test
> extras to
> > avoid more extensive dependencies.
> +1 as well. One of my intentions here is to avoid getting zope.app.*
> dependencies in zope.* packages. However, in the long run,
> those dependencies probably should go away by reworking the
> tests or refactoring the (overall) code base.
Yes, that's what I was asking for.
Ok, I will pick up this topic as soon as I have time.
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