Re: [PATCH v2 1/6] kunit: Kconfig: enable a KUNIT_RUN_ALL fragment

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On Wed, May 6, 2020 at 6:33 PM Anders Roxell <anders.roxell@xxxxxxxxxx> wrote:
>
> Hi David,
>
> Thank you for the review.
>
> On Wed, 6 May 2020 at 07:08, David Gow <davidgow@xxxxxxxxxx> wrote:
> >
> > On Tue, May 5, 2020 at 6:27 PM Anders Roxell <anders.roxell@xxxxxxxxxx> wrote:
> > >
> > > Make it easier to enable all KUnit fragments.  This is needed for kernel
> > > test-systems, so its easy to get all KUnit tests enabled and if new gets
> > > added they will be enabled as well.  Fragments that has to be builtin
> > > will be missed if CONFIG_KUNIT_RUN_ALL is set as a module.
> > >
> > > Signed-off-by: Anders Roxell <anders.roxell@xxxxxxxxxx>
> > > ---
> > >  lib/kunit/Kconfig | 6 ++++++
> > >  1 file changed, 6 insertions(+)
> > >
> > > diff --git a/lib/kunit/Kconfig b/lib/kunit/Kconfig
> > > index 95d12e3d6d95..537f37bc8400 100644
> > > --- a/lib/kunit/Kconfig
> > > +++ b/lib/kunit/Kconfig
> > > @@ -41,4 +41,10 @@ config KUNIT_EXAMPLE_TEST
> > >           is intended for curious hackers who would like to understand how to
> > >           use KUnit for kernel development.
> > >
> > > +config KUNIT_RUN_ALL
> > > +       tristate "KUnit run all test"
> >
> > I'm not 100% sure about this name and description. It only actually
> > "runs" the tests if they're builtin (as modules, they'll only run when
> > loaded).
> >
> > Would KUNIT_BUILD_ALL or KUNIT_ALL_TESTS
>
> I would like to go with KUNIT_ALL_TESTS if no one objects.
>

Personally, I'm fine with that.

Brendan, thoughts?

> > or similar be better?
> >
> > It also, as mentioned, only really runs all available (i.e., with
> > dependencies met in the current .config) tests (as distinct from the
> > --alltests flag to kunit.py, which builds UML with allyesconfig), it
> > might be good to add this to the description or help.
> >
> > Something like "Enable all KUnit tests" or "Enable all available KUnit
> > tests" (or even something about "all KUnit tests with satisfied
> > dependencies") might be clearer.
>
> I like "All KUnit tests with satisfied dependencies".
>
> >
> > > +       help
> > > +         Enables all KUnit tests, if they can be enabled.
> > > +         That depends on if KUnit is enabled as a module or builtin.
> > > +
> > I like the first line here, but the second one could use a bit more
> > explanation. Maybe copy some of the boilerplate text from other tests,
> > e.g.:
> >
> >           KUnit tests run during boot and output the results to the debug log
> >          in TAP format (http://testanything.org/). Only useful for kernel devs
> >          running the KUnit test harness, and not intended for inclusion into a
> >          production build.
> >
> >          For more information on KUnit and unit tests in general please refer
> >          to the KUnit documentation in Documentation/dev-tools/kunit/.
> >
> >          If unsure, say N.
>
> Makes much more sense, thanks.
>
> >
> > >  endif # KUNIT
> > > --
> > > 2.20.1
> > >
> >
> > Otherwise, this is looking good. I've done some quick testing, and it
> > all seems to work for me. As long as it's clear what the difference
> > between this and other ways of running "all tests" (like the
> > --alltests kunit.py option),
>
> Do you think it should be made clearer in some way?
>

I think the changes above should do it.

-- David



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