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Commit 37ff3d36 authored by Yan Han's avatar Yan Han
Browse files

Add unit tests for special cases for adjust-only AVB. 

Follow-up for ag/23173080.

Test: atest TvToAudioSystemAvbTest
Bug: 282157498
Change-Id: I4e1cb0e737158ef9c809e5c92ef0fdf6a8e82188
parent 7f766f24

services/tests/servicestests/src/com/android/server/hdmi/TvToAudioSystemAvbTest.java

+59 −0
Original line number Diff line number Diff line
@@ -262,4 +262,63 @@ public class TvToAudioSystemAvbTest extends BaseAbsoluteVolumeBehaviorTest { 


        assertThat(mNativeWrapper.getResultMessages()).isEmpty();

    }



    @Test

    public void adjustOnlyAvbEnabled_savlBecomesSupported_switchToAvb() {

        enableAdjustOnlyAbsoluteVolumeBehavior();

        mNativeWrapper.clearResultMessages();



        // When the Audio System reports support for <Set Audio Volume Level>,

        // the device should start the process for adopting AVB by sending <Give Audio Status>

        receiveSetAudioVolumeLevelSupport(DeviceFeatures.FEATURE_SUPPORTED);

        verifyGiveAudioStatusSent();



        // The device should use adjust-only AVB while waiting for <Report Audio Status>

        assertThat(mAudioManager.getDeviceVolumeBehavior(getAudioOutputDevice())).isEqualTo(

                AudioManager.DEVICE_VOLUME_BEHAVIOR_ABSOLUTE_ADJUST_ONLY);



        // The device should switch to AVB upon receiving <Report Audio Status>

        receiveReportAudioStatus(60, false);

        assertThat(mAudioManager.getDeviceVolumeBehavior(getAudioOutputDevice())).isEqualTo(

                AudioManager.DEVICE_VOLUME_BEHAVIOR_ABSOLUTE);



    }



    /**

     * Tests that adjust-only AVB is not interrupted when a device's support for

     * <Set Audio Volume Level> becomes unknown.

     *

     * This may currently occur when NewDeviceAction overwrites a device's info in HdmiCecNetwork.

     * However, because replicating this scenario would be brittle and the behavior may change,

     * this test does not simulate it and instead changes HdmiCecNetwork directly.

     */

    @Test

    public void adjustOnlyAvbEnabled_savlSupportBecomesUnknown_keepUsingAdjustOnlyAvb() {

        enableAdjustOnlyAbsoluteVolumeBehavior();

        mNativeWrapper.clearResultMessages();



        // Make sure the existing SetAudioVolumeLevelDiscoveryAction expires,

        // so that we can check whether a new one is started.

        mTestLooper.moveTimeForward(HdmiConfig.TIMEOUT_MS + 1);

        mTestLooper.dispatchAll();



        // Replace Audio System device info with one that has unknown support for all features

        HdmiDeviceInfo updatedAudioSystemDeviceInfo =

                mHdmiControlService.getHdmiCecNetwork().getDeviceInfo(Constants.ADDR_AUDIO_SYSTEM)

                .toBuilder()

                .setDeviceFeatures(DeviceFeatures.ALL_FEATURES_SUPPORT_UNKNOWN)

                .build();

        mHdmiControlService.getHdmiCecNetwork().addCecDevice(updatedAudioSystemDeviceInfo);

        mTestLooper.dispatchAll();



        // The device should not switch away from adjust-only AVB

        assertThat(mAudioManager.getDeviceVolumeBehavior(getAudioOutputDevice())).isEqualTo(

                AudioManager.DEVICE_VOLUME_BEHAVIOR_ABSOLUTE_ADJUST_ONLY);



        // The device should query support for <Set Audio Volume Level> again

        assertThat(mNativeWrapper.getResultMessages()).contains(

                SetAudioVolumeLevelMessage.build(

                        getLogicalAddress(), getSystemAudioDeviceLogicalAddress(),

                        Constants.AUDIO_VOLUME_STATUS_UNKNOWN));

    }

}