[PATCH] tests: Fix qemuxml2xmltest with audio driver defined in env

[Daniel P. Berrangé]

On Thu, Apr 01, 2021 at 11:10:28AM -0600, Jim Fehlig wrote:
> If QEMU_AUDIO_DRV is defined in the build host environment, several tests
> in qemuxml2xmltest fail.
> 
> $ env | grep -i audio
> AUDIODRIVER=pulseaudio
> QEMU_AUDIO_DRV=pa
> SDL_AUDIODRIVER=pulse
> 
> An example test failure with the above environment
> 
> 907) QEMU XML-2-XML-active video-virtio-gpu-sdl-gl
> In 'libvirt/tests/qemuxml2xmloutdata/video-virtio-gpu-sdl-gl.xml':
> Offset 1244
> Expect [v]
> Actual [audio id='1' type='pulseaudio'/>
>     <v]
> 
> Scrub QEMU_AUDIO_DRV from the environment before executing the tests in
> qemuxml2xmltest.
> 
> Signed-off-by: Jim Fehlig <jfehlig at suse.com>
> ---
> 
> On IRC Daniel suggested scrubbing QEM_AUDIO_DRV and SDL_AUDIODRIVER.
> Only QEM_AUDIO_DRV was needed to fix the test failure, but I can scrub
> the other one too if that's preferred.

I think we should do both as qemu_domain.c will look at SDL_AUDIODRIVER
if $QEMU_AUDIO_DRV == sdl

> 
>  tests/qemuxml2xmltest.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
> index 137f1871af..aff6ae9175 100644
> --- a/tests/qemuxml2xmltest.c
> +++ b/tests/qemuxml2xmltest.c
> @@ -198,6 +198,7 @@ mymain(void)
>       * using ADD_ENV_COPY, otherwise these tests may fail due to unexpected
>       * values for these envvars */
>      g_setenv("PATH", "/bin", TRUE);
> +    g_unsetenv("QEMU_AUDIO_DRV");
>  
>      DO_TEST("minimal", NONE);
>      DO_TEST_CAPS_LATEST("genid");
> -- 
> 2.30.1
> 
> 

Regards,
Daniel
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