linux-kernel - Re: [PATCH] selftests/kcmp: Make the test output consistent and clear

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Date:   Mon, 11 Jul 2022 09:52:36 +0530
From:   Gautam Menghani <gautammenghani201@...il.com>
To:     shuah@...nel.org
Cc:     linux-kselftest@...r.kernel.org,
        linux-kernel-mentees@...ts.linuxfoundation.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] selftests/kcmp: Make the test output consistent and clear

Hi Shuah,
Please review this patch and let me know if any changes are required.
On Thu, Jun 30, 2022 at 12:58:22AM +0530, Gautam Menghani wrote:
> Make the output format of this test consistent. Currently the output is
> as follows:
> 
> +TAP version 13
> +1..1
> +# selftests: kcmp: kcmp_test
> +# pid1:  45814 pid2:  45815 FD:  1 FILES:  1 VM:  2 FS:  1 SIGHAND:  2 
> +  IO:  0 SYSVSEM:  0 INV: -1
> +# PASS: 0 returned as expected
> +# PASS: 0 returned as expected
> +# PASS: 0 returned as expected
> +# # Planned tests != run tests (0 != 3)
> +# # Totals: pass:3 fail:0 xfail:0 xpass:0 skip:0 error:0
> +# # Planned tests != run tests (0 != 3)
> +# # Totals: pass:3 fail:0 xfail:0 xpass:0 skip:0 error:0
> +# # Totals: pass:0 fail:0 xfail:0 xpass:0 skip:0 error:0
> +ok 1 selftests: kcmp: kcmp_test
> 
> With this patch applied the output is as follows:
> 
> +TAP version 13
> +1..1
> +# selftests: kcmp: kcmp_test
> +# TAP version 13
> +# 1..3
> +# pid1:  46330 pid2:  46331 FD:  1 FILES:  2 VM:  2 FS:  2 SIGHAND:  1 
> +  IO:  0 SYSVSEM:  0 INV: -1
> +# PASS: 0 returned as expected
> +# PASS: 0 returned as expected
> +# PASS: 0 returned as expected
> +# # Totals: pass:3 fail:0 xfail:0 xpass:0 skip:0 error:0
> +ok 1 selftests: kcmp: kcmp_test
> 
> 
> Signed-off-by: Gautam Menghani <gautammenghani201@...il.com>
> ---
>  tools/testing/selftests/kcmp/kcmp_test.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/testing/selftests/kcmp/kcmp_test.c b/tools/testing/selftests/kcmp/kcmp_test.c
> index 6ea7b9f37a41..25110c7c0b3e 100644
> --- a/tools/testing/selftests/kcmp/kcmp_test.c
> +++ b/tools/testing/selftests/kcmp/kcmp_test.c
> @@ -88,6 +88,9 @@ int main(int argc, char **argv)
>  		int pid2 = getpid();
>  		int ret;
>  
> +		ksft_print_header();
> +		ksft_set_plan(3);
> +
>  		fd2 = open(kpath, O_RDWR, 0644);
>  		if (fd2 < 0) {
>  			perror("Can't open file");
> @@ -152,7 +155,6 @@ int main(int argc, char **argv)
>  			ksft_inc_pass_cnt();
>  		}
>  
> -		ksft_print_cnts();
>  
>  		if (ret)
>  			ksft_exit_fail();
> @@ -162,5 +164,5 @@ int main(int argc, char **argv)
>  
>  	waitpid(pid2, &status, P_ALL);
>  
> -	return ksft_exit_pass();
> +	return 0;
>  }
> -- 
> 2.36.1
>