Re: [PATCH 2/2] selftests/timers: change to use shared logic to run and install tests

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On 03/15/2015 08:48 PM, Michael Ellerman wrote:
> On Fri, 2015-03-13 at 20:14 -0700, John Stultz wrote:
>> On Fri, Mar 13, 2015 at 3:57 PM, Shuah Khan <shuahkh@xxxxxxxxxxxxxxx> wrote:
>>> Change the timers Makefile to make use of shared run and install
>>> logic in lib.mk. Destructive tests are installed. Regular tests
>>> are emited to run_kselftest script to match the run_tests behavior.
>>>
>>> Signed-off-by: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx>
>>> ---
>>>  tools/testing/selftests/timers/Makefile | 20 +++++++++++---------
>>>  1 file changed, 11 insertions(+), 9 deletions(-)
>>>
>>> diff --git a/tools/testing/selftests/timers/Makefile b/tools/testing/selftests/timers/Makefile
>>> index 9da3498..61e7284 100644
>>> --- a/tools/testing/selftests/timers/Makefile
>>> +++ b/tools/testing/selftests/timers/Makefile
>>> @@ -7,19 +7,21 @@ bins = posix_timers nanosleep inconsistency-check nsleep-lat raw_skew \
>>>         alarmtimer-suspend change_skew skew_consistency clocksource-switch \
>>>         leap-a-day leapcrash set-tai set-2038
>>>
>>> +TEST_PROGS = posix_timers nanosleep nsleep-lat set-timer-lat mqueue-lat \
>>> +               inconsistency-check raw_skew
>>> +TEST_FILES = threadtest alarmtimer-suspend valid-adjtimex change_skew \
>>> +               skew_consistency clocksource-switch leap-a-day leapcrash \
>>> +               set-tai set-2038
>>> +
>>> +RUN_TESTS_WITH_ARGS := ./threadtest -t 30 -n 8 || echo "selftests: threadtest [FAIL]"
>>> +
>>> +EMIT_TESTS_WITH_ARGS := echo "$(RUN_TESTS_WITH_ARGS)"
>>> +
>>
>> So my make-foo isn't very strong, but no objections from me.
>>
>> My only thoughts:
>> 1) Would it be better if threadtest can be made to have better
>> defaults for kselftest so you don't need that extra logic?
> 
> That would help. But with the patch I just sent I think it's no bother, it's
> only a little extra logic and it's only in the timers Makefile.

Let's go with a threadtest patch with better defaults. It will emit
scripts logic as well. Awesome. I just saw John's new patch in my
Inbox. Thanks.

> 
>> 2) While I get that TEST_FILES is likely going to be used to copy the
>> destructive tests over, It feels a little like its being bundled in
>> with something like data files that tests might need, which seems sort
>> of hackish. Would TEST_PROGS_EXTENDED or something be more clear and
>> make more sense?
> 
> That doesn't really bother me. You're right that TEST_FILES is originally
> intended for data files etc. but I don't think it's a big hack to use it for
> other tests that shouldn't be run by default. Still if it bothers you I'm happy
> to add a separate variable for it, they are cheap :)
> 

Michael,

Could you please make the change from TEST_FILES to TEST_PROGS_EXTENDED
which is definitely better than overloading TEST_FILES?

I think this would probably only change Add Install target patch. You
can send me patch v5 with that change and I will override the next with
your new one. Thanks for doing this.

thanks,
-- Shuah

-- 
Shuah Khan
Sr. Linux Kernel Developer
Open Source Innovation Group
Samsung Research America (Silicon Valley)
shuahkh@xxxxxxxxxxxxxxx | (970) 217-8978
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