Probing Meson for build configurations (was: [PATCH v2 3/6] tests/acceptance: allow a "graceful" failing for virtio-gpu test)

[Wainer dos Santos Moschetta]

Hi Paolo,

Last week I was chatting with Cleber about probing configured features 
so that tests could be skipped (just like on this case). He has a 
implementation which never landed in, and is based on the old build 
system. Now with Meson, I am wondering if it has some sort of API for 
probing, or parsing the JSON files in build/meson-info/ is the proper 
way to inspect the build configuration.

Thanks!

- Wainer

On 2/22/21 7:14 AM, Alex Bennée wrote:
> This is a band-aid with a TODO for cases when QEMU doesn't start due
> to missing VirGL. Longer term we could do with some proper feature
> probing.
>
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
> Reviewed-by: Willian Rampazzo <willianr@redhat.com>
> Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
> Message-Id: <20210217121932.19986-7-alex.bennee@linaro.org>
> ---
>   tests/acceptance/virtio-gpu.py | 7 ++++++-
>   1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/tests/acceptance/virtio-gpu.py b/tests/acceptance/virtio-gpu.py
> index ab1a4c1a71..ab18cddbb7 100644
> --- a/tests/acceptance/virtio-gpu.py
> +++ b/tests/acceptance/virtio-gpu.py
> @@ -85,7 +85,12 @@ def test_virtio_vga_virgl(self):
>               "-append",
>               kernel_command_line,
>           )
> -        self.vm.launch()
> +        try:
> +            self.vm.launch()
> +        except:
> +            # TODO: probably fails because we are missing the VirGL features
> +            self.cancel("VirGL not enabled?")
> +
>           self.wait_for_console_pattern("as init process")
>           exec_command_and_wait_for_pattern(
>               self, "/usr/sbin/modprobe virtio_gpu", ""