[pytest-dev] document outlining added values

[Craig de Stigter]

> gradually porting all tests

Mostly-automated conversion is possible, so it doesn't have to be a gradual
process.

I wrote a script which converts xunit-style assertions into pytest ones:
https://github.com/craigds/decrapify/blob/master/pytestify.py

In the context of a large project port, my PR for OSGeo/gdal
<https://github.com/osgeo/gdal/pull/963> is under consideration for merge.
Most of the work was automated.

I would expect a conversion of django's test suite to pytest to be simpler
than the GDAL one (django's test suite is in far better shape to start
with). As a heavy user of django, I'd be interested in taking the lead on
it, or at least contributing in an advisory way. I'm not aware of any
discussion on the django lists about this yet though.

Is your question purely academic or are you considering submitting
something to Django to work on this?

Cheers
Craig de Stigter

On Mon, 3 Dec 2018 at 21:24 Sivan Grünberg <sivan at vitakka.co> wrote:

> Hi All,
>
>  A transcript from a conversation about considering porting django
> TestCase's to pytest:
>
> "Some counterpoints:
> - Tomorrow `some_other_test` will be the guideline and pytest will be passe
> - Why add a new dependency when you have something built in, _if it's good
> enough_
>
> But all that is just conversation, the real issue i'm having is:
> Now we have 2 ways of doing something in the project
> consistency is my #1 goal or requirement in a project
> Makes the codebase so much easier to maintain and learn (edited)
> I'm trying to grok if pytest gives us such advantages that it's worth
> gradually porting all tests to use it for consistency, but while the syntax
> is nice you could achieve the same thing by reading those paramterized
> lists in a loop i think?"
>
> Last remark was in reference to @pytest.mark.parametrize.
>
> Do we have a document somewhere to answer such? like a comparison that
> outlines why it might be better to do so , or alternatively, to discuss the
> contexts where sticking to Django TestCase's is better?
>
> Is there a full feature list that I may point people at when they ask me
> "why pytest" ?
>
> Cheers,
>
> -Sivan
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