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

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On Tue, Jun 13, 2017 at 12:52:12PM -0600, Shuah Khan 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>
> >>
> >> 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>
> >> Signed-off-by: Alice Ferrazzi <alice.ferrazzi@xxxxxxxxx>
> >> Signed-off-by: Greg Kroah-Hartman <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.
> 
> > 
> > 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.

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 ?

> 
> 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);
> >>  }
> >>  
> >>
> > 
> > 
> 

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