[PATCH V2] tests: Fix qemuxml2xmltest with audio driver defined in env

[Daniel P. Berrangé]

On Thu, Apr 01, 2021 at 11:44:59AM -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. SDL_AUDIODRIVER also needs scrubbed since it will be
> examined if QEMU_AUDIO_DRV=sdl.
> 
> Signed-off-by: Jim Fehlig <jfehlig at suse.com>
> ---
> 
> v2: Also scrub SDL_AUDIODRIVER
> 
>  tests/qemuxml2xmltest.c | 2 ++
>  1 file changed, 2 insertions(+)

Reviewed-by: Daniel P. Berrangé <berrange at redhat.com>

Regards,
Daniel
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