linux-kernel - Re: [PATCH 2/3] list: test: Add a test for list_is

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Message-ID: <Yf52WjnmA17wQ5p7@smile.fi.intel.com>
Date:   Sat, 5 Feb 2022 15:06:34 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     David Gow <davidgow@...gle.com>
Cc:     Shuah Khan <skhan@...uxfoundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Brendan Higgins <brendanhiggins@...gle.com>,
        Daniel Latypov <dlatypov@...gle.com>,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        kunit-dev@...glegroups.com
Subject: Re: [PATCH 2/3] list: test: Add a test for list_is_head()

On Sat, Feb 05, 2022 at 02:15:37PM +0800, David Gow wrote:
> list_is_head() was added recently[1], and didn't have a KUnit test. The
> implementation is trivial, so it's not a particularly exciting test, but
> it'd be nice to get back to full coverage of the list functions.
> 
> [1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/include/linux/list.h?id=0425473037db40d9e322631f2d4dc6ef51f97e88

...

> +static void list_test_list_is_head(struct kunit *test)
> +{
> +	struct list_head a, b;
> +
> +	KUNIT_EXPECT_TRUE(test, list_is_head(&a, &a));

OK.

> +	KUNIT_EXPECT_FALSE(test, list_is_head(&a, &b));

Perhaps OK, but the main case here is to test an (arbitrary) member of the existing list.

> +}

-- 
With Best Regards,
Andy Shevchenko