linux-kernel - Re: [PATCH] lib: kunit_test_overflow: add KUnit test of check_*

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Date:   Sat, 13 Jun 2020 14:56:43 +0800
From:   David Gow <davidgow@...gle.com>
To:     Vitor Massaru Iha <vitor@...saru.org>
Cc:     KUnit Development <kunit-dev@...glegroups.com>,
        Shuah Khan <skhan@...uxfoundation.org>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Brendan Higgins <brendanhiggins@...gle.com>,
        linux-kernel-mentees@...ts.linuxfoundation.org,
        Kees Cook <keescook@...omium.org>, linux@...musvillemoes.dk
Subject: Re: [PATCH] lib: kunit_test_overflow: add KUnit test of
 check_*_overflow functions

On Fri, Jun 12, 2020 at 5:55 AM Vitor Massaru Iha <vitor@...saru.org> wrote:
>
> This adds the convertion of the runtime tests of check_*_overflow fuctions,
> from `lib/test_overflow.c`to KUnit tests.

Nit: couple of minor typos here: convertion -> conversion, and
functions -> functions

> The log similar to the one seen in dmesg running test_overflow can be
> seen in `test.log`.
>
> Signed-off-by: Vitor Massaru Iha <vitor@...saru.org>

I've tested that this builds and runs on my system, and it all seems
to be working fine!

Tested-by: David Gow <davidgow@...gle.com>

> ---
>  lib/Kconfig.debug         |  17 ++
>  lib/Makefile              |   1 +
>  lib/kunit_overflow_test.c | 590 ++++++++++++++++++++++++++++++++++++++
>  3 files changed, 608 insertions(+)
>  create mode 100644 lib/kunit_overflow_test.c

Echoing what Brendan and Kees mentioned, it'd be nicer to have this
replace the existing test, both because there's no need for redundant
tests (one will get out-of-date), and so that we can have a nice diff
showing the changes made as part of the conversion.

Cheers,
-- David