Re: [PATCH 00/10] drm: selftest: Convert to KUnit

From: Javier Martinez Canillas
Date: Thu Jun 16 2022 - 12:44:05 EST


On 6/16/22 16:55, David Gow wrote:
> On Wed, Jun 15, 2022 at 9:59 PM Maíra Canal <maira.canal@xxxxxx> wrote:
>>
>> KUnit unifies the test structure and provides helper tools that simplify
>> the development of tests. The basic use case allows running tests as regular
>> processes, which makes it easier to run unit tests on a development machine
>> and to integrate the tests into a CI system.
>>
>> That said, the conversion of selftests for DRM to KUnit tests is beneficial
>> as it unifies the testing API by using the KUnit API.
>>
>> KUnit is beneficial for developers as it eases the process to run unit tests.
>> It is possible to run the tests by using the kunit-tool on userspace with the
>> following command:
>>
>> ./tools/testing/kunit/kunit.py run --kunitconfig=drivers/gpu/drm/tests --arch=x86_64
>>
>> For CI system, it is possible to execute during the build. But, we also think
>> about IGT: we are developing a patch to introduce KUnit to IGT.
>>
>> These patches were developed during a KUnit hackathon [0] last October. Now,
>> we believe that both the IGT side and the Kernel side are in good shape for
>> submission.
>>
>> If you are willing to check the output, here is the Pastebin with the output
>> and execution times [1].
>>
>> [0] https://groups.google.com/g/kunit-dev/c/YqFR1q2uZvk/m/IbvItSfHBAAJ
>> [1] https://pastebin.com/FJjLPKsC
>>
>> - Arthur Grillo, Isabella Basso, and Maíra Canal
>
> Great to see these going upstream!
>

Indeed, this is pretty awesome!

I haven't reviewed the patches yet but just have a meta comment. There's a TODO
entry for this [0] in Documentation/gpu/todo.rst, so I think that you could add
a patch removing that as a part of this series.

[0]: https://cgit.freedesktop.org/drm/drm/tree/Documentation/gpu/todo.rst#n620

--
Best regards,

Javier Martinez Canillas
Linux Engineering
Red Hat