linux-kernel - Re: [PATCH v2 kunit-next 0/3] kunit: add debugfs representation to show results/run tests

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Message-ID: <CAFd5g46657gZ36PaP8Pi999hPPgBU2Kz94nrMspS-AzGwdBF+g@mail.gmail.com>
Date:   Thu, 23 Jan 2020 14:24:06 -0800
From:   Brendan Higgins <brendanhiggins@...gle.com>
To:     Alan Maguire <alan.maguire@...cle.com>,
        Luis Chamberlain <mcgrof@...nel.org>
Cc:     Greg KH <gregkh@...uxfoundation.org>,
        Jonathan Corbet <corbet@....net>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        KUnit Development <kunit-dev@...glegroups.com>,
        "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 kunit-next 0/3] kunit: add debugfs representation to
 show results/run tests

+Luis Chamberlain

On Thu, Jan 23, 2020 at 10:47 AM Alan Maguire <alan.maguire@...cle.com> wrote:
>
> When kunit tests are run on native (i.e. non-UML) environments, the results
> of test execution are often intermixed with dmesg output.  This patch
> series attempts to solve this by providing a debugfs representation
> of the results of the last test run, available as
>
> /sys/kernel/debug/kunit/<testsuite>/results
>
> In addition, we provide a way to re-run the tests and show results via
>
> /sys/kernel/debug/kunit/<testsuite>/run

Ooo, cool! I like this! I was actually thinking about doing something
similar after talking to either Shuah, or Luis, so this is great! I
think Luis will be interested in this regardless so I cc'ed him.

> Changes since v1:
>  - trimmed unneeded include files in lib/kunit/debugfs.c (Greg)
>  - renamed global debugfs functions to be prefixed with kunit_ (Greg)
>  - removed error checking for debugfs operations (Greg)
>
> Alan Maguire (3):
>   kunit: add debugfs /sys/kernel/debug/kunit/<suite>/results display
>   kunit: add "run" debugfs file to run suites, display results
>   kunit: update documentation to describe debugfs representation
>
>  Documentation/dev-tools/kunit/usage.rst |  19 +++++
>  include/kunit/test.h                    |  21 +++--
>  lib/kunit/Makefile                      |   3 +-
>  lib/kunit/debugfs.c                     | 137 ++++++++++++++++++++++++++++++++
>  lib/kunit/debugfs.h                     |  16 ++++
>  lib/kunit/test.c                        |  85 +++++++++++++++-----
>  6 files changed, 254 insertions(+), 27 deletions(-)
>  create mode 100644 lib/kunit/debugfs.c
>  create mode 100644 lib/kunit/debugfs.h
>
> --
> 1.8.3.1
>