Re: [PATCH 2/2] selftests/thermel/intel: conform the test to TAP output

[srinivas pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx>]

On Wed, 2024-05-22 at 10:06 -0700, Muhammad Usama Anjum wrote:
> Conform the layout, informational and status messages to TAP. No
> functional change is intended other than the layout of output
> messages.
> 
> Signed-off-by: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx>
> ---
>  .../intel/power_floor/power_floor_test.c      | 68 ++++++++---------
> --
>  1 file changed, 28 insertions(+), 40 deletions(-)
> 
> diff --git
> a/tools/testing/selftests/thermal/intel/power_floor/power_floor_test.
> c
> b/tools/testing/selftests/thermal/intel/power_floor/power_floor_test.
> c
> index 0326b39a11b91..1626c6d92e621 100644
> ---
> a/tools/testing/selftests/thermal/intel/power_floor/power_floor_test.
> c
> +++
> b/tools/testing/selftests/thermal/intel/power_floor/power_floor_test.
> c
> @@ -9,6 +9,7 @@
>  #include <fcntl.h>
>  #include <poll.h>
>  #include <signal.h>
> +#include "../../../kselftest.h"
>  
>  #define POWER_FLOOR_ENABLE_ATTRIBUTE
> "/sys/bus/pci/devices/0000:00:04.0/power_limits/power_floor_enable"
>  #define POWER_FLOOR_STATUS_ATTRIBUTE 
> "/sys/bus/pci/devices/0000:00:04.0/power_limits/power_floor_status"
> @@ -20,17 +21,13 @@ void power_floor_exit(int signum)
>         /* Disable feature via sysfs knob */
>  
>         fd = open(POWER_FLOOR_ENABLE_ATTRIBUTE, O_RDWR);
> -       if (fd < 0) {
> -               perror("Unable to open power floor enable file\n");
> -               exit(1);
> -       }
> +       if (fd < 0)
> +               ksft_exit_fail_perror("Unable to open power floor
> enable file");
>  
> -       if (write(fd, "0\n", 2) < 0) {
> -               perror("Can' disable power floor notifications\n");
> -               exit(1);
> -       }
> +       if (write(fd, "0\n", 2) < 0)
> +               ksft_exit_fail_perror("Can' disable power floor
> notifications");
>  
> -       printf("Disabled power floor notifications\n");
> +       ksft_print_msg("Disabled power floor notifications\n");
>  
>         close(fd);
>  }
> @@ -41,6 +38,9 @@ int main(int argc, char **argv)
>         char status_str[3];
>         int fd, ret;
>  
> +       ksft_print_header();
> +       ksft_set_plan(1);
> +
>         if (signal(SIGINT, power_floor_exit) == SIG_IGN)
>                 signal(SIGINT, SIG_IGN);
>         if (signal(SIGHUP, power_floor_exit) == SIG_IGN)
> @@ -50,57 +50,45 @@ int main(int argc, char **argv)
>  
>         /* Enable feature via sysfs knob */
>         fd = open(POWER_FLOOR_ENABLE_ATTRIBUTE, O_RDWR);
> -       if (fd < 0) {
> -               perror("Unable to open power floor enable file\n");
> -               exit(1);
> -       }
> +       if (fd < 0)
> +               ksft_exit_fail_perror("Unable to open power floor
> enable file");
>  
> -       if (write(fd, "1\n", 2) < 0) {
> -               perror("Can' enable power floor notifications\n");
> -               exit(1);
> -       }
> +       if (write(fd, "1\n", 2) < 0)
> +               ksft_exit_fail_perror("Can' enable power floor
> notifications");
>  
>         close(fd);
>  
> -       printf("Enabled power floor notifications\n");
> +       ksft_print_msg("Enabled power floor notifications\n");
>  
>         while (1) {
>                 fd = open(POWER_FLOOR_STATUS_ATTRIBUTE, O_RDONLY);
> -               if (fd < 0) {
> -                       perror("Unable to power floor status
> file\n");
> -                       exit(1);
> -               }
> +               if (fd < 0)
> +                       ksft_exit_fail_perror("Unable to power floor
> status file");
>  
> -               if ((lseek(fd, 0L, SEEK_SET)) < 0) {
> -                       fprintf(stderr, "Failed to set pointer to
> beginning\n");
> -                       exit(1);
> -               }
> +               if ((lseek(fd, 0L, SEEK_SET)) < 0)
> +                       ksft_exit_fail_perror("Failed to set pointer
> to beginning\n");
>  
>                 if (read(fd, status_str, sizeof(status_str)) < 0) {
> -                       fprintf(stderr, "Failed to read from:%s\n",
> -                       POWER_FLOOR_STATUS_ATTRIBUTE);
> -                       exit(1);
> -               }
> +                       ksft_exit_fail_perror(stderr, "Failed to read
> from: power_floor_status");
>  
>                 ufd.fd = fd;
>                 ufd.events = POLLPRI;
>  
>                 ret = poll(&ufd, 1, -1);
>                 if (ret < 0) {
> -                       perror("poll error");
> -                       exit(1);
> +                       ksft_exit_fail_msg("Poll error\n");
>                 } else if (ret == 0) {
> -                       printf("Poll Timeout\n");
> +                       ksft_print_msg("Poll Timeout\n");
>                 } else {
> -                       if ((lseek(fd, 0L, SEEK_SET)) < 0) {
> -                               fprintf(stderr, "Failed to set
> pointer to beginning\n");
> -                               exit(1);
> -                       }
> +                       if ((lseek(fd, 0L, SEEK_SET)) < 0)
> +                               ksft_exit_fail_msg("Failed to set
> pointer to beginning\n");
>  
> -                       if (read(fd, status_str, sizeof(status_str))
> < 0)
> -                               exit(0);
> +                       if (read(fd, status_str, sizeof(status_str))
> < 0) {
> +                               ksft_test_result_pass("Successfully
> read\n");
Same comment as for 1/2.

Thanks,
Srinivas

> +                               ksft_finished();
> +                       }
>  
> -                       printf("power floor status: %s\n",
> status_str);
> +                       ksft_print_msg("power floor status: %s\n",
> status_str);
>                 }
>  
>                 close(fd);