linux-kernel - Re: [PATCH v9 1/2] kunit: Support for Parameterized Testing

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Date:   Tue, 1 Dec 2020 15:28:41 -0700
From:   Shuah Khan <skhan@...uxfoundation.org>
To:     Brendan Higgins <brendanhiggins@...gle.com>,
        David Gow <davidgow@...gle.com>,
        Arpitha Raghunandan <98.arpi@...il.com>
Cc:     Marco Elver <elver@...gle.com>, Theodore Ts'o <tytso@....edu>,
        Iurii Zaikin <yzaikin@...gle.com>,
        Andreas Dilger <adilger.kernel@...ger.ca>,
        "Bird, Tim" <Tim.Bird@...y.com>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        KUnit Development <kunit-dev@...glegroups.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-kernel-mentees@...ts.linuxfoundation.org,
        linux-ext4@...r.kernel.org, skhan@...uxfoundation.org
Subject: Re: [PATCH v9 1/2] kunit: Support for Parameterized Testing

On 11/30/20 3:22 PM, Brendan Higgins wrote:
> On Mon, Nov 23, 2020 at 11:25 PM David Gow <davidgow@...gle.com> wrote:
>>
>> On Mon, Nov 23, 2020 at 9:08 PM Marco Elver <elver@...gle.com> wrote:
>>>
>>> On Tue, 17 Nov 2020 at 08:21, David Gow <davidgow@...gle.com> wrote:
>>>> On Mon, Nov 16, 2020 at 1:41 PM Arpitha Raghunandan <98.arpi@...il.com> wrote:
>>>>>
>>>>> Implementation of support for parameterized testing in KUnit. This
>>>>> approach requires the creation of a test case using the
>>>>> KUNIT_CASE_PARAM() macro that accepts a generator function as input.
>>>>>
>>>>> This generator function should return the next parameter given the
>>>>> previous parameter in parameterized tests. It also provides a macro to
>>>>> generate common-case generators based on arrays. Generators may also
>>>>> optionally provide a human-readable description of parameters, which is
>>>>> displayed where available.
>>>>>
>>>>> Note, currently the result of each parameter run is displayed in
>>>>> diagnostic lines, and only the overall test case output summarizes
>>>>> TAP-compliant success or failure of all parameter runs. In future, when
>>>>> supported by kunit-tool, these can be turned into subsubtest outputs.
>>>>>
>>>>> Signed-off-by: Arpitha Raghunandan <98.arpi@...il.com>
>>>>> Co-developed-by: Marco Elver <elver@...gle.com>
>>>>> Signed-off-by: Marco Elver <elver@...gle.com>
>>>>> ---
>>>> [Resending this because my email client re-defaulted to HTML! Aarrgh!]
>>>>
>>>> This looks good to me! I tested it in UML and x86-64 w/ KASAN, and
>>>> both worked fine.
>>>>
>>>> Reviewed-by: David Gow <davidgow@...gle.com>
>>>> Tested-by: David Gow <davidgow@...gle.com>
>>>
>>> Thank you!
>>>
>>>> Thanks for sticking with this!
>>>
>>> Will these patches be landing in 5.11 or 5.12?
>>>
>>
>> I can't think of any reason not to have these in 5.11. We haven't
>> started staging things in the kselftest/kunit branch for 5.11 yet,
>> though.
>>
>> Patch 2 will probably need to be acked by Ted for ext4 first.
>>
>> Brendan, Shuah: can you make sure this doesn't get lost in patchwork?
> 
> Looks good to me. I would definitely like to pick this up. But yeah,
> in order to pick up 2/2 we will need an ack from either Ted or Iurii.
> 
> Ted seems to be busy right now, so I think I will just ask Shuah to go
> ahead and pick this patch up by itself and we or Ted can pick up patch
> 2/2 later.
> 
> Cheers
> 

I am seeing

ERROR: need consistent spacing around '*' (ctx:WxV)
#272: FILE: include/kunit/test.h:1786:
+		typeof((array)[0]) *__next = prev ? ((typeof(__next)) prev) + 1 : 
(array);	\
  		                   ^

Can you look into this and send v10?

thanks,
-- Shuah