linux-kernel - Re: [PATCH v9 04/18] kunit: test: add kunit

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Message-ID: <CAFd5g44bovSiiqGCip1Q4zBOUauXMcryxnPs8miOa0-QrPW61Q@mail.gmail.com>
Date:   Mon, 12 Aug 2019 13:41:24 -0700
From:   Brendan Higgins <brendanhiggins@...gle.com>
To:     Stephen Boyd <sboyd@...nel.org>
Cc:     Petr Mladek <pmladek@...e.com>, Jeff Dike <jdike@...toit.com>,
        Kevin Hilman <khilman@...libre.com>,
        Logan Gunthorpe <logang@...tatee.com>,
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        Steven Rostedt <rostedt@...dmis.org>,
        Kees Cook <keescook@...gle.com>,
        David Rientjes <rientjes@...gle.com>,
        kunit-dev@...glegroups.com,
        Kieran Bingham <kieran.bingham@...asonboard.com>,
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Subject: Re: [PATCH v9 04/18] kunit: test: add kunit_stream a std::stream like logger

On Thu, Aug 1, 2019 at 2:43 PM Brendan Higgins
<brendanhiggins@...gle.com> wrote:
>
> On Thu, Aug 1, 2019 at 2:14 PM Stephen Boyd <sboyd@...nel.org> wrote:
> >
> > Quoting Brendan Higgins (2019-08-01 11:59:57)
> > > On Thu, Aug 1, 2019 at 11:55 AM Brendan Higgins
> > > <brendanhiggins@...gle.com> wrote:
> > > >
> > > > On Fri, Jul 26, 2019 at 1:31 AM Petr Mladek <pmladek@...e.com> wrote:
> > > >
> > > > > To be honest I do not fully understand KUnit design. I am not
> > > > > completely sure how the tested code is isolated from the running
> > > > > system. Namely, I do not know if the tested code shares
> > > > > the same locks with the system running the test.
> > > >
> > > > No worries, I don't expect printk to be the hang up in those cases. It
> > > > sounds like KUnit has a long way to evolve before printk is going to
> > > > be a limitation.
> > >
> > > So Stephen, what do you think?
> > >
> > > Do you want me to go forward with the new kunit_assert API wrapping
> > > the string_stream as I have it now? Would you prefer to punt this to a
> > > later patch? Or would you prefer something else?
> > >
> >
> > I like the struct based approach. If anything, it can be adjusted to
> > make the code throw some records into a spinlock later on and delay the
> > formatting of the assertion if need be.
>
> That's a fair point.
>
> > Can you resend with that
> > approach? I don't think I'll have any more comments after that.

I sent a new revision, v12, that incorporates the kunit_assert stuff.

Let me know what you think!