linux-kernel - Re: [PATCH] HID: uclogic: Use KUNIT_EXPECT

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Message-ID: <nycvar.YFH.7.76.2301180947220.1734@cbobk.fhfr.pm>
Date:   Wed, 18 Jan 2023 09:47:27 +0100 (CET)
From:   Jiri Kosina <jikos@...nel.org>
To:     José Expósito <jose.exposito89@...il.com>
cc:     benjamin.tissoires@...hat.com, mcanal@...lia.com,
        mairacanal@...eup.net, linux-input@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] HID: uclogic: Use KUNIT_EXPECT_MEMEQ

On Mon, 26 Dec 2022, José Expósito wrote:

> Commit b8a926bea8b1 ("kunit: Introduce KUNIT_EXPECT_MEMEQ and
> KUNIT_EXPECT_MEMNEQ macros") introduced a new macro to compare blocks of
> memory and, if the test fails, print the result in a human friendly
> format. For example, this is the output of a test failure:
> 
>  Expected res == params->expected, but
>      res ==
>       01  02  aa  00  00  00  03  bb  00 <00> 00  04  05
>      params->expected ==
>       01  02  aa  00  00  00  03  bb  00 <01> 00  04  05
> 
> Use this new macro to replace KUNIT_EXPECT_EQ + memcmp.
> 
> Signed-off-by: José Expósito <jose.exposito89@...il.com>
> ---
>  drivers/hid/hid-uclogic-rdesc-test.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/hid/hid-uclogic-rdesc-test.c b/drivers/hid/hid-uclogic-rdesc-test.c
> index b429c541bf2f..90bf4e586e01 100644
> --- a/drivers/hid/hid-uclogic-rdesc-test.c
> +++ b/drivers/hid/hid-uclogic-rdesc-test.c
> @@ -197,8 +197,7 @@ static void hid_test_uclogic_template(struct kunit *test)
>  					   params->param_list,
>  					   params->param_num);
>  	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, res);
> -	KUNIT_EXPECT_EQ(test, 0,
> -			memcmp(res, params->expected, params->template_size));
> +	KUNIT_EXPECT_MEMEQ(test, res, params->expected, params->template_size);
>  	kfree(res);

Applied, thanks.

-- 
Jiri Kosina
SUSE Labs