Merge ~jocave/plainbox-provider-checkbox:add-audio-loopback-manifest into plainbox-provider-checkbox:master

[Jonathan Cave]

Add an audio loopback connector manifest entry and requirement for it on alsa-loopback-automated. This allows us to keep clean test run output where peripherals are required.

[Sylvain Pineau (sylvain-pineau)]

+1

review: Approve

diff --git a/units/audio/jobs.pxu b/units/audio/jobs.pxu
index 0745e5c..126209e 100644
--- a/units/audio/jobs.pxu
+++ b/units/audio/jobs.pxu
@@ -679,6 +679,8 @@ flags: also-after-suspend
 command: alsa_test loopback -d 5
 category_id: com.canonical.plainbox::audio
 estimated_duration: 5
+imports: from com.canonical.plainbox import manifest
+requires: manifest.has_audio_loopback_connector == 'True'
 
 id: audio/alsa-loopback
 _summary: Captured sound matches played one
diff --git a/units/audio/manifest.pxu b/units/audio/manifest.pxu
index 95417f6..d3e285b 100644
--- a/units/audio/manifest.pxu
+++ b/units/audio/manifest.pxu
@@ -13,3 +13,9 @@ unit: manifest entry
 id: has_audio_capture
 _name: Audio capture
 value-type: bool
+
+unit: manifest entry
+id: has_audio_loopback_connector
+prompt: Does this device have the following?:
+_name: Audio Loopback Connector
+value-type: bool