[igt-dev] [PATCH i-g-t] tests/kms_plane_lowres: Test only with one plane

[Petri Latvala]

On Fri, Jan 17, 2020 at 11:17:49AM +0200, Mika Kahola wrote:
> The test is intended to test resolution changes from higher to
> lower and back. We can test this with only one plane and we don't
> need to run through all planes. This will save significant amount
> of test execution time.
> 
> Fix for
> Bugzilla: https://gitlab.freedesktop.org/drm/intel/issues/899

I'm having a hard time understanding how this change fixes this issue.


> 
> Signed-off-by: Mika Kahola <mika.kahola at intel.com>
> ---
>  tests/kms_plane_lowres.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/tests/kms_plane_lowres.c b/tests/kms_plane_lowres.c
> index 4c3f5636..ee6fb1fb 100644
> --- a/tests/kms_plane_lowres.c
> +++ b/tests/kms_plane_lowres.c
> @@ -208,7 +208,8 @@ test_planes_on_pipe_with_output(data_t *data, enum pipe pipe,
>  		igt_assert_crc_equal(&data->ref_lowres.crc, &crc_lowres);
>  
>  		igt_plane_set_fb(plane, NULL);
> -		tested++;
> +		if (tested++)
> +			break;

At this point one must ask: Why have the count variable anymore?


-- 
Petri Latvala