Re: [PATCH v2 1/4] kselftest: add TAP13 conformant versions of ksft_* functions

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On 06/14/2017 04:50 AM, Shuah Khan wrote:
> On 06/13/2017 01:05 PM, Alice Ferrazzi wrote:
>>
>>
>> On Wed, Jun 14, 2017 at 3:52 AM, Shuah Khan <shuah@xxxxxxxxxx <mailto:shuah@xxxxxxxxxx>> wrote:
>>
>>     Hi Paul,
>>
>>     On 06/13/2017 11:54 AM, Paul Elder wrote:
>>     > On 06/12/2017 03:56 PM, Greg Kroah-Hartman wrote:
>>     >> From: Paul Elder <paul.elder@xxxxxxxx <mailto:paul.elder@xxxxxxxx>>
>>     >>
>>     >> Add TAP13 conformat output functions to kselftest.h.
>>     >>
>>     >> Also add exit functions that output TAP13 exiting text, as well as
>>     >> functions to keep track of testing progress.
>>     >>
>>     >> Signed-off-by: Paul Elder <paul.elder@xxxxxxxx <mailto:paul.elder@xxxxxxxx>>
>>     >> Signed-off-by: Alice Ferrazzi <alice.ferrazzi@xxxxxxxxx <mailto:alice.ferrazzi@xxxxxxxxx>>
>>     >> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx <mailto:gregkh@xxxxxxxxxxxxxxxxxxx>>
>>     >> ---
>>     >> v2: Just use the standard function names, no _tap suffix - Alice
>>     >>
>>     >>  tools/testing/selftests/kselftest.h | 52 ++++++++++++++++++++++++++++++++++---
>>     >>  1 file changed, 48 insertions(+), 4 deletions(-)
>>     >>
>>     >> diff --git a/tools/testing/selftests/kselftest.h b/tools/testing/selftests/kselftest.h
>>     >> index ef1c80d67ac7..1d874a50d957 100644
>>     >> --- a/tools/testing/selftests/kselftest.h
>>     >> +++ b/tools/testing/selftests/kselftest.h
>>     >> @@ -31,38 +31,82 @@ struct ksft_count {
>>     >>
>>     >>  static struct ksft_count ksft_cnt;
>>     >>
>>     >> +static inline int ksft_test_num(void)
>>     >> +{
>>     >> +    return ksft_cnt.ksft_pass + ksft_cnt.ksft_fail +
>>     >> +            ksft_cnt.ksft_xfail + ksft_cnt.ksft_xpass +
>>     >> +            ksft_cnt.ksft_xskip;
>>     >> +}
>>     >> +
>>     >>  static inline void ksft_inc_pass_cnt(void) { ksft_cnt.ksft_pass++; }
>>     >>  static inline void ksft_inc_fail_cnt(void) { ksft_cnt.ksft_fail++; }
>>     >>  static inline void ksft_inc_xfail_cnt(void) { ksft_cnt.ksft_xfail++; }
>>     >>  static inline void ksft_inc_xpass_cnt(void) { ksft_cnt.ksft_xpass++; }
>>     >>  static inline void ksft_inc_xskip_cnt(void) { ksft_cnt.ksft_xskip++; }
>>     >>
>>     >> +static inline void ksft_print_header(void)
>>     >> +{
>>     >> +    printf("TAP version 13\n");
>>     >> +}
>>     >> +
>>     >>  static inline void ksft_print_cnts(void)
>>     >>  {
>>     >> -    printf("Pass: %d Fail: %d Xfail: %d Xpass: %d, Xskip: %d\n",
>>     >> -            ksft_cnt.ksft_pass, ksft_cnt.ksft_fail,
>>     >> -            ksft_cnt.ksft_xfail, ksft_cnt.ksft_xpass,
>>     >> -            ksft_cnt.ksft_xskip);
>>     >> +    printf("1..%d\n", ksft_test_num());
>>     >> +}
>>     >> +
>>     >> +static inline void ksft_test_result_pass(const char *msg)
>>     >> +{
>>     >> +    ksft_cnt.ksft_pass++;
>>     >> +    printf("ok %d %s\n", ksft_test_num(), msg);
>>     >> +}
>>     >> +
>>     >> +static inline void ksft_test_result_fail(const char *msg)
>>     >> +{
>>     >> +    ksft_cnt.ksft_fail++;
>>     >> +    printf("not ok %d %s\n", ksft_test_num(), msg);
>>     >> +}
>>     >> +
>>     >> +static inline void ksft_test_result_skip(const char *msg)
>>     >> +{
>>     >> +    ksft_cnt.ksft_xskip++;
>>     >> +    printf("ok %d # skip %s\n", ksft_test_num(), msg);
>>     >>  }
>>     >
>>     > I just realized; the test count increments within the these three functions
>>     > (the ksft_test_result_* functions) should use the actual incrementor function
>>     > calls (ksft_inc_*_cnt) instead of directly incrementing them, shouldn't they?
>>
>>     I added the increment functions for flexibility. If a test
>>     chooses to increment individual pass/fail/xfai/xpass counts
>>     and then print summary.
I see. So it's fine then to increment these directly?

>>     >
>>     > Although I suppose it's readable enough that it's fine
>>     >
>>     > As far as I can tell as long as we have these ksft_test_result_* functions
>>     > that increment the test count *and* output the test result, the incrementor
>>     > functions aren't going to be used a lot, if ever.
>>     >
>>     > Thoughts?
>>     >
>>     > Also what's the difference between fail/xfail and pass/xpass?
>>
>>     xfail means that the test ix expected to fail but passed
>>     xpass means that the test is expected pass, but failed.
I see. Thank you.

>>
>>
>> With TAP 13 output there is no xfail or xpass format.
>>
>> Is probably like
>> ok 1 Correctly failed
>>
>> This mean that we can think to remove xfail and xpass ?
Exactly what I was thinking as well.

> Possibly - We can make that call later on whetherto remove or not.

Thank you,

Paul

> 
> -- Shuah
>>  
>>
>>
>>     thanks,
>>     -- Shuah
>>     >
>>     > Thank you,
>>     >
>>     > Paul
>>     >
>>     >>  static inline int ksft_exit_pass(void)
>>     >>  {
>>     >> +    ksft_print_cnts();
>>     >>      exit(KSFT_PASS);
>>     >>  }
>>     >> +
>>     >>  static inline int ksft_exit_fail(void)
>>     >>  {
>>     >> +    printf("Bail out!\n");
>>     >> +    ksft_print_cnts();
>>     >>      exit(KSFT_FAIL);
>>     >>  }
>>     >> +
>>     >> +static inline int ksft_exit_fail_msg(const char *msg)
>>     >> +{
>>     >> +    printf("Bail out! %s\n", msg);
>>     >> +    ksft_print_cnts();
>>     >> +    exit(KSFT_FAIL);
>>     >> +}
>>     >> +
>>     >>  static inline int ksft_exit_xfail(void)
>>     >>  {
>>     >> +    ksft_print_cnts();
>>     >>      exit(KSFT_XFAIL);
>>     >>  }
>>     >> +
>>     >>  static inline int ksft_exit_xpass(void)
>>     >>  {
>>     >> +    ksft_print_cnts();
>>     >>      exit(KSFT_XPASS);
>>     >>  }
>>     >> +
>>     >>  static inline int ksft_exit_skip(void)
>>     >>  {
>>     >> +    ksft_print_cnts();
>>     >>      exit(KSFT_SKIP);
>>     >>  }
>>     >>
>>     >>
>>     >
>>     >
>>
>>
>> thanks,
>> Alice
>>
>> -- 
>> アリス フェッラッツィ
>> Alice Ferrazzi
>>
>> Gentoo Kernel Project Leader
>> Mail: Alice Ferrazzi <alice.ferrazzi@xxxxxxxxx <mailto:alice.ferrazzi@xxxxxxxxx>>
>> PGP: 2E4E 0856 461C 0585 1336 F496 5621 A6B2 8638 781A
> 
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