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Date:   Tue, 19 Jul 2022 00:11:43 +0300
From:   Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To:     Yury Norov <yury.norov@gmail.com>
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Subject: Re: [PATCH 06/16] lib/test_bitmap: delete meaningless test for
 bitmap_cut
Message-ID: <YtXMjwXnRIT+YHg7@smile.fi.intel.com>
References: <20220718192844.1805158-1-yury.norov@gmail.com>
 <20220718192844.1805158-7-yury.norov@gmail.com>
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On Mon, Jul 18, 2022 at 12:28:34PM -0700, Yury Norov wrote:
> One of bitmap_cut() tests passed it with:
> 	nbits = BITS_PER_LONG;
> 	first = BITS_PER_LONG;
> 	cut = BITS_PER_LONG;
> 
> This test is useless because the range to cut is not inside the
> bitmap. This should normally raise an error, but bitmap_cut() is
> void and returns nothing.
> 
> To check if the test is passed, it just tests that the memory is
> not touched by bitmap_cut(), which is probably not correct, because
> if a function is passed with wrong parameters, it's too optimistic 
> to expect a correct, or even sane behavior.
> 
> Now that we have bitmap_check_params(), there's a tool to detect such
> things in real code, and we can drop the test.

There are no "useless" tests. Same comments as per a couple of previous
patches.

-- 
With Best Regards,
Andy Shevchenko