Add LE audio hardware offload development option

Bug: 197296692
Bug: 215492586
Test: make RunSettingsRoboTests ROBOTEST_FILTER=BluetoothLeAudioHwOffloadPreferenceControllerTest
Test: make RunSettingsRoboTests
ROBOTEST_FILTER=BluetoothA2dpHwOffloadPreferenceControllerTest

Change-Id: If1203c50d1d94ac9ed377293b5cb389b7b6f54a1
Merged-In: If1203c50d1d94ac9ed377293b5cb389b7b6f54a1

res/values/strings.xml

@@ -329,14 +329,16 @@
 
     <!-- UI debug setting: Disable Bluetooth A2DP hardware offload [CHAR LIMIT=none] -->
     <string name="bluetooth_disable_a2dp_hw_offload">Disable Bluetooth A2DP hardware offload</string>
-    <!-- UI debug setting: Disable Bluetooth A2DP hardware offload [CHAR LIMIT=none] -->
+    <!-- UI debug setting: Disable Bluetooth LE AUDIO hardware offload [CHAR LIMIT=none] -->
-    <string name="bluetooth_disable_a2dp_hw_offload_dialog_title">Restart Device?</string>
+    <string name="bluetooth_disable_le_audio_hw_offload">Disable Bluetooth LE AUDIO hardware offload</string>
-    <!-- UI debug setting: Disable Bluetooth A2DP hardware offload [CHAR LIMIT=none] -->
+    <!-- UI debug setting: Disable Bluetooth hardware offload [CHAR LIMIT=none] -->
-    <string name="bluetooth_disable_a2dp_hw_offload_dialog_message">You need to restart your device to change this setting.</string>
+    <string name="bluetooth_disable_hw_offload_dialog_title">Restart Device?</string>
-    <!-- UI debug setting: Disable Bluetooth A2DP hardware offload [CHAR LIMIT=none] -->
+    <!-- UI debug setting: Disable Bluetooth hardware offload [CHAR LIMIT=none] -->
-    <string name="bluetooth_disable_a2dp_hw_offload_dialog_confirm">Restart</string>
+    <string name="bluetooth_disable_hw_offload_dialog_message">You need to restart your device to change this setting.</string>
-    <!-- UI debug setting: Disable Bluetooth A2DP hardware offload [CHAR LIMIT=none] -->
+    <!-- UI debug setting: Disable Bluetooth hardware offload [CHAR LIMIT=none] -->
-    <string name="bluetooth_disable_a2dp_hw_offload_dialog_cancel">Cancel</string>
+    <string name="bluetooth_disable_hw_offload_dialog_confirm">Restart</string>
+    <!-- UI debug setting: Disable Bluetooth hardware offload [CHAR LIMIT=none] -->
+    <string name="bluetooth_disable_hw_offload_dialog_cancel">Cancel</string>
 
     <!-- Title for Bluetooth device group with media capability group [CHAR LIMIT=none]-->
     <string name="connected_device_media_device_title">Media devices</string>

res/xml/development_settings.xml

@@ -317,6 +317,10 @@
             android:key="bluetooth_disable_a2dp_hw_offload"
             android:title="@string/bluetooth_disable_a2dp_hw_offload" />
 
+        <SwitchPreference
+            android:key="bluetooth_disable_le_audio_hw_offload"
+            android:title="@string/bluetooth_disable_le_audio_hw_offload" />
+
         <ListPreference
             android:key="bluetooth_select_avrcp_version"
             android:title="@string/bluetooth_select_avrcp_version_string"

src/com/android/settings/development/BluetoothA2dpHwOffloadPreferenceController.java

@@ -16,9 +16,12 @@
 
 package com.android.settings.development;
 
+import static com.android.settings.development.BluetoothLeAudioHwOffloadPreferenceController.LE_AUDIO_OFFLOAD_DISABLED_PROPERTY;
+
 import android.content.Context;
 import android.os.SystemProperties;
 
+import androidx.annotation.VisibleForTesting;
 import androidx.preference.Preference;
 import androidx.preference.SwitchPreference;
 
@@ -34,6 +37,9 @@ public class BluetoothA2dpHwOffloadPreferenceController extends DeveloperOptions
     static final String A2DP_OFFLOAD_DISABLED_PROPERTY = "persist.bluetooth.a2dp_offload.disabled";
     static final String A2DP_OFFLOAD_SUPPORTED_PROPERTY = "ro.bluetooth.a2dp_offload.supported";
 
+    @VisibleForTesting
+    boolean mChanged = false;
+
     public BluetoothA2dpHwOffloadPreferenceController(Context context,
             DevelopmentSettingsDashboardFragment fragment) {
         super(context);
@@ -47,7 +53,8 @@ public class BluetoothA2dpHwOffloadPreferenceController extends DeveloperOptions
 
     @Override
     public boolean onPreferenceChange(Preference preference, Object newValue) {
-        BluetoothA2dpHwOffloadRebootDialog.show(mFragment, this);
+        BluetoothHwOffloadRebootDialog.show(mFragment);
+        mChanged = true;
         return false;
     }
 
@@ -85,10 +92,26 @@ public class BluetoothA2dpHwOffloadPreferenceController extends DeveloperOptions
         return offloadSupported ? !offloadDisabled : true;
     }
 
-    public void onA2dpHwDialogConfirmed() {
+    /**
+     * Called when the HwOffloadDialog confirm is clicked.
+     */
+    public void onHwOffloadDialogConfirmed() {
+        if (!mChanged) {
+            return;
+        }
         final boolean offloadDisabled =
                 SystemProperties.getBoolean(A2DP_OFFLOAD_DISABLED_PROPERTY, false);
         SystemProperties.set(A2DP_OFFLOAD_DISABLED_PROPERTY, Boolean.toString(!offloadDisabled));
+        if (offloadDisabled) {
+            SystemProperties.set(LE_AUDIO_OFFLOAD_DISABLED_PROPERTY,
+                    Boolean.toString(!offloadDisabled));
+        }
     }
 
+    /**
+     * Called when the HwOffloadDialog cancel is clicked.
+     */
+    public void onHwOffloadDialogCanceled() {
+        mChanged = false;
+    }
 }

src/com/android/settings/development/BluetoothHwOffloadRebootDialog.java

@@ -28,17 +28,23 @@ import androidx.fragment.app.FragmentManager;
 import com.android.settings.R;
 import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
 
-public class BluetoothA2dpHwOffloadRebootDialog extends InstrumentedDialogFragment
+/**
+ * The a2dp and LE audio offload switch should reboot the device to take effect, the dialog is
+ * to ask the user to reboot the device after a2dp or LE audio offload user preference changed
+ */
+public class BluetoothHwOffloadRebootDialog extends InstrumentedDialogFragment
         implements DialogInterface.OnClickListener {
 
-    public static final String TAG = "BluetoothA2dpHwOffloadReboot";
+    public static final String TAG = "BluetoothHwOffloadReboot";
 
-    public static void show(DevelopmentSettingsDashboardFragment host,
+    /**
-            BluetoothA2dpHwOffloadPreferenceController controller) {
+     * The function to show the HwOffloadReboot Dialog.
+     */
+    public static void show(DevelopmentSettingsDashboardFragment host) {
         final FragmentManager manager = host.getActivity().getSupportFragmentManager();
         if (manager.findFragmentByTag(TAG) == null) {
-            final BluetoothA2dpHwOffloadRebootDialog dialog =
+            final BluetoothHwOffloadRebootDialog dialog =
-                    new BluetoothA2dpHwOffloadRebootDialog();
+                    new BluetoothHwOffloadRebootDialog();
             dialog.setTargetFragment(host, 0 /* requestCode */);
             dialog.show(manager, TAG);
         }
@@ -52,33 +58,44 @@ public class BluetoothA2dpHwOffloadRebootDialog extends InstrumentedDialogFragme
     @Override
     public Dialog onCreateDialog(Bundle savedInstanceState) {
         return new AlertDialog.Builder(getActivity())
-                .setMessage(R.string.bluetooth_disable_a2dp_hw_offload_dialog_message)
+                .setMessage(R.string.bluetooth_disable_hw_offload_dialog_message)
-                .setTitle(R.string.bluetooth_disable_a2dp_hw_offload_dialog_title)
+                .setTitle(R.string.bluetooth_disable_hw_offload_dialog_title)
                 .setPositiveButton(
-                        R.string.bluetooth_disable_a2dp_hw_offload_dialog_confirm, this)
+                        R.string.bluetooth_disable_hw_offload_dialog_confirm, this)
                 .setNegativeButton(
-                        R.string.bluetooth_disable_a2dp_hw_offload_dialog_cancel, this)
+                        R.string.bluetooth_disable_hw_offload_dialog_cancel, this)
                 .create();
     }
 
     @Override
     public void onClick(DialogInterface dialog, int which) {
-        final OnA2dpHwDialogConfirmedListener host =
+        final OnHwOffloadDialogListener host =
-                (OnA2dpHwDialogConfirmedListener) getTargetFragment();
+                (OnHwOffloadDialogListener) getTargetFragment();
         if (host == null) {
             return;
         }
         if (which == DialogInterface.BUTTON_POSITIVE) {
-            host.onA2dpHwDialogConfirmed();
+            host.onHwOffloadDialogConfirmed();
             PowerManager pm = getContext().getSystemService(PowerManager.class);
             pm.reboot(null);
+        } else {
+            host.onHwOffloadDialogCanceled();
         }
     }
 
-    public interface OnA2dpHwDialogConfirmedListener {
+    /**
+     * The interface for the HsOffloadDialogListener to provide the action as the
+     * confirmed or canceled clicked.
+     */
+    public interface OnHwOffloadDialogListener {
         /**
          * Called when the user presses reboot on the warning dialog.
          */
-        void onA2dpHwDialogConfirmed();
+        void onHwOffloadDialogConfirmed();
+
+        /**
+         * Called when the user presses cancel on the warning dialog.
+         */
+        void onHwOffloadDialogCanceled();
     }
 }

src/com/android/settings/development/BluetoothLeAudioHwOffloadPreferenceController.java

@@ -0,0 +1,127 @@
+/*
+ * Copyright 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.development;
+
+import static com.android.settings.development.BluetoothA2dpHwOffloadPreferenceController.A2DP_OFFLOAD_SUPPORTED_PROPERTY;
+
+import android.content.Context;
+import android.os.SystemProperties;
+
+import androidx.annotation.VisibleForTesting;
+import androidx.preference.Preference;
+import androidx.preference.SwitchPreference;
+
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settingslib.development.DeveloperOptionsPreferenceController;
+
+/**
+ * Preference controller to control Bluetooth LE audio offload
+ */
+public class BluetoothLeAudioHwOffloadPreferenceController
+        extends DeveloperOptionsPreferenceController
+        implements Preference.OnPreferenceChangeListener, PreferenceControllerMixin {
+
+    private static final String PREFERENCE_KEY = "bluetooth_disable_le_audio_hw_offload";
+    private final DevelopmentSettingsDashboardFragment mFragment;
+
+    static final String LE_AUDIO_OFFLOAD_DISABLED_PROPERTY =
+            "persist.bluetooth.leaudio_offload.disabled";
+    static final String LE_AUDIO_OFFLOAD_SUPPORTED_PROPERTY =
+            "ro.bluetooth.leaudio_offload.supported";
+
+    @VisibleForTesting
+    boolean mChanged = false;
+
+    public BluetoothLeAudioHwOffloadPreferenceController(Context context,
+            DevelopmentSettingsDashboardFragment fragment) {
+        super(context);
+        mFragment = fragment;
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return PREFERENCE_KEY;
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        BluetoothHwOffloadRebootDialog.show(mFragment);
+        mChanged = true;
+        return false;
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        final boolean offloadSupported =
+                SystemProperties.getBoolean(A2DP_OFFLOAD_SUPPORTED_PROPERTY, false)
+                && SystemProperties.getBoolean(LE_AUDIO_OFFLOAD_SUPPORTED_PROPERTY, false);
+        if (offloadSupported) {
+            final boolean offloadDisabled =
+                    SystemProperties.getBoolean(LE_AUDIO_OFFLOAD_DISABLED_PROPERTY, true);
+            ((SwitchPreference) mPreference).setChecked(offloadDisabled);
+        } else {
+            mPreference.setEnabled(false);
+            ((SwitchPreference) mPreference).setChecked(true);
+        }
+    }
+
+    @Override
+    protected void onDeveloperOptionsSwitchDisabled() {
+        super.onDeveloperOptionsSwitchDisabled();
+        final boolean offloadSupported =
+                SystemProperties.getBoolean(A2DP_OFFLOAD_SUPPORTED_PROPERTY, false)
+                && SystemProperties.getBoolean(LE_AUDIO_OFFLOAD_SUPPORTED_PROPERTY, false);
+        if (offloadSupported) {
+            ((SwitchPreference) mPreference).setChecked(true);
+            SystemProperties.set(LE_AUDIO_OFFLOAD_DISABLED_PROPERTY, "true");
+        }
+    }
+
+    /**
+     * Check if the le audio offload setting is default value.
+     */
+    public boolean isDefaultValue() {
+        final boolean offloadSupported =
+                SystemProperties.getBoolean(A2DP_OFFLOAD_SUPPORTED_PROPERTY, false)
+                && SystemProperties.getBoolean(LE_AUDIO_OFFLOAD_SUPPORTED_PROPERTY, false);
+        final boolean offloadDisabled =
+                    SystemProperties.getBoolean(LE_AUDIO_OFFLOAD_DISABLED_PROPERTY, false);
+        return offloadSupported ? offloadDisabled : true;
+    }
+
+    /**
+     * Called when the HwOffloadDialog confirm is clicked.
+     */
+    public void onHwOffloadDialogConfirmed() {
+        if (!mChanged) {
+            return;
+        }
+
+        final boolean offloadDisabled =
+                SystemProperties.getBoolean(LE_AUDIO_OFFLOAD_DISABLED_PROPERTY,
+                false);
+        SystemProperties.set(LE_AUDIO_OFFLOAD_DISABLED_PROPERTY,
+                Boolean.toString(!offloadDisabled));
+    }
+
+    /**
+     * Called when the HwOffloadDialog cancel is clicked.
+     */
+    public void onHwOffloadDialogCanceled() {
+        mChanged = false;
+    }
+}

src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java

@@ -79,7 +79,7 @@ import java.util.List;
 public class DevelopmentSettingsDashboardFragment extends RestrictedDashboardFragment
         implements OnMainSwitchChangeListener, OemUnlockDialogHost, AdbDialogHost,
         AdbClearKeysDialogHost, LogPersistDialogHost,
-        BluetoothA2dpHwOffloadRebootDialog.OnA2dpHwDialogConfirmedListener,
+        BluetoothHwOffloadRebootDialog.OnHwOffloadDialogListener,
         AbstractBluetoothPreferenceController.Callback {
 
     private static final String TAG = "DevSettingsDashboard";
@@ -287,12 +287,16 @@ public class DevelopmentSettingsDashboardFragment extends RestrictedDashboardFra
             if (isChecked) {
                 EnableDevelopmentSettingWarningDialog.show(this /* host */);
             } else {
-                final BluetoothA2dpHwOffloadPreferenceController controller =
+                final BluetoothA2dpHwOffloadPreferenceController a2dpController =
                         getDevelopmentOptionsController(
                                 BluetoothA2dpHwOffloadPreferenceController.class);
-                // If A2DP hardware offload isn't default value, we must reboot after disable
+                final BluetoothLeAudioHwOffloadPreferenceController leAudioController =
+                        getDevelopmentOptionsController(
+                                BluetoothLeAudioHwOffloadPreferenceController.class);
+                // If hardware offload isn't default value, we must reboot after disable
                 // developer options. Show a dialog for the user to confirm.
-                if (controller == null || controller.isDefaultValue()) {
+                if ((a2dpController == null || a2dpController.isDefaultValue())
+                        && (leAudioController == null || leAudioController.isDefaultValue())) {
                     disableDeveloperOptions();
                 } else {
                     DisableDevSettingsDialogFragment.show(this /* host */);
@@ -352,10 +356,27 @@ public class DevelopmentSettingsDashboardFragment extends RestrictedDashboardFra
     }
 
     @Override
-    public void onA2dpHwDialogConfirmed() {
+    public void onHwOffloadDialogConfirmed() {
-        final BluetoothA2dpHwOffloadPreferenceController controller =
+        final BluetoothA2dpHwOffloadPreferenceController a2dpController =
                 getDevelopmentOptionsController(BluetoothA2dpHwOffloadPreferenceController.class);
-        controller.onA2dpHwDialogConfirmed();
+        a2dpController.onHwOffloadDialogConfirmed();
+
+        final BluetoothLeAudioHwOffloadPreferenceController leAudioController =
+                getDevelopmentOptionsController(
+                    BluetoothLeAudioHwOffloadPreferenceController.class);
+        leAudioController.onHwOffloadDialogConfirmed();
+    }
+
+    @Override
+    public void onHwOffloadDialogCanceled() {
+        final BluetoothA2dpHwOffloadPreferenceController a2dpController =
+                getDevelopmentOptionsController(BluetoothA2dpHwOffloadPreferenceController.class);
+        a2dpController.onHwOffloadDialogCanceled();
+
+        final BluetoothLeAudioHwOffloadPreferenceController leAudioController =
+                getDevelopmentOptionsController(
+                    BluetoothLeAudioHwOffloadPreferenceController.class);
+        leAudioController.onHwOffloadDialogCanceled();
     }
 
     @Override
@@ -514,6 +535,7 @@ public class DevelopmentSettingsDashboardFragment extends RestrictedDashboardFra
         controllers.add(new BluetoothAvrcpVersionPreferenceController(context));
         controllers.add(new BluetoothMapVersionPreferenceController(context));
         controllers.add(new BluetoothA2dpHwOffloadPreferenceController(context, fragment));
+        controllers.add(new BluetoothLeAudioHwOffloadPreferenceController(context, fragment));
         controllers.add(new BluetoothMaxConnectedAudioDevicesPreferenceController(context));
         controllers.add(new NfcStackDebugLogPreferenceController(context));
         controllers.add(new ShowTapsPreferenceController(context));

src/com/android/settings/development/DisableDevSettingsDialogFragment.java

@@ -56,15 +56,15 @@ public class DisableDevSettingsDialogFragment extends InstrumentedDialogFragment
 
     @Override
     public Dialog onCreateDialog(Bundle savedInstanceState) {
-        // Reuse the same text of disable_a2dp_hw_offload_dialog.
+        // Reuse the same text of disable_hw_offload_dialog.
         // The text is generic enough to be used for turning off Dev options.
         return new AlertDialog.Builder(getActivity())
-                .setMessage(R.string.bluetooth_disable_a2dp_hw_offload_dialog_message)
+                .setMessage(R.string.bluetooth_disable_hw_offload_dialog_message)
-                .setTitle(R.string.bluetooth_disable_a2dp_hw_offload_dialog_title)
+                .setTitle(R.string.bluetooth_disable_hw_offload_dialog_title)
                 .setPositiveButton(
-                        R.string.bluetooth_disable_a2dp_hw_offload_dialog_confirm, this)
+                        R.string.bluetooth_disable_hw_offload_dialog_confirm, this)
                 .setNegativeButton(
-                        R.string.bluetooth_disable_a2dp_hw_offload_dialog_cancel, this)
+                        R.string.bluetooth_disable_hw_offload_dialog_cancel, this)
                 .create();
     }
 

tests/robotests/src/com/android/settings/development/BluetoothA2dpHwOffloadPreferenceControllerTest.java

@@ -18,6 +18,8 @@ package com.android.settings.development;
 
 import static com.android.settings.development.BluetoothA2dpHwOffloadPreferenceController
         .A2DP_OFFLOAD_DISABLED_PROPERTY;
+import static com.android.settings.development.BluetoothLeAudioHwOffloadPreferenceController
+        .LE_AUDIO_OFFLOAD_DISABLED_PROPERTY;
 
 import static com.google.common.truth.Truth.assertThat;
 
@@ -62,15 +64,37 @@ public class BluetoothA2dpHwOffloadPreferenceControllerTest {
     }
 
     @Test
-    public void onA2dpHwDialogConfirmed_shouldChangeProperty() {
+    public void onA2dpHwDialogConfirmedAsA2dpOffloadDisabled_shouldChangeProperty() {
         SystemProperties.set(A2DP_OFFLOAD_DISABLED_PROPERTY, Boolean.toString(false));
+        mController.mChanged = true;
 
-        mController.onA2dpHwDialogConfirmed();
+        mController.onHwOffloadDialogConfirmed();
         final boolean mode = SystemProperties.getBoolean(A2DP_OFFLOAD_DISABLED_PROPERTY, false);
         assertThat(mode).isTrue();
+    }
 
-        mController.onA2dpHwDialogConfirmed();
+    @Test
-        final boolean mode2 = SystemProperties.getBoolean(A2DP_OFFLOAD_DISABLED_PROPERTY, false);
+    public void onA2dpHwDialogConfirmedAsA2dpOffloadEnabled_shouldChangeProperty() {
-        assertThat(mode2).isFalse();
+        SystemProperties.set(A2DP_OFFLOAD_DISABLED_PROPERTY, Boolean.toString(true));
+        SystemProperties.set(LE_AUDIO_OFFLOAD_DISABLED_PROPERTY, Boolean.toString(true));
+
+        mController.mChanged = true;
+
+        mController.onHwOffloadDialogConfirmed();
+        final boolean a2dpMode = SystemProperties.getBoolean(A2DP_OFFLOAD_DISABLED_PROPERTY, true);
+        final boolean leAudioMode = SystemProperties
+                .getBoolean(LE_AUDIO_OFFLOAD_DISABLED_PROPERTY, true);
+        assertThat(a2dpMode).isFalse();
+        assertThat(leAudioMode).isFalse();
+    }
+
+    @Test
+    public void onA2dpHwDialogCanceled_shouldNotChangeProperty() {
+        SystemProperties.set(A2DP_OFFLOAD_DISABLED_PROPERTY, Boolean.toString(false));
+        mController.mChanged = true;
+
+        mController.onHwOffloadDialogCanceled();
+        final boolean mode = SystemProperties.getBoolean(A2DP_OFFLOAD_DISABLED_PROPERTY, false);
+        assertThat(mode).isFalse();
     }
 }

tests/robotests/src/com/android/settings/development/BluetoothLeAudioHwOffloadPreferenceControllerTest.java

@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.development;
+
+import static com.android.settings.development.BluetoothLeAudioHwOffloadPreferenceController
+        .LE_AUDIO_OFFLOAD_DISABLED_PROPERTY;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.os.SystemProperties;
+
+import androidx.preference.PreferenceScreen;
+import androidx.preference.SwitchPreference;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(RobolectricTestRunner.class)
+public class BluetoothLeAudioHwOffloadPreferenceControllerTest {
+
+    @Mock
+    private PreferenceScreen mPreferenceScreen;
+    @Mock
+    private DevelopmentSettingsDashboardFragment mFragment;
+
+    private Context mContext;
+    private SwitchPreference mPreference;
+    private BluetoothLeAudioHwOffloadPreferenceController mController;
+
+    @Before
+    public void setup() {
+        MockitoAnnotations.initMocks(this);
+        mContext = RuntimeEnvironment.application;
+        mPreference = new SwitchPreference(mContext);
+        mController = spy(new BluetoothLeAudioHwOffloadPreferenceController(mContext, mFragment));
+        when(mPreferenceScreen.findPreference(mController.getPreferenceKey()))
+            .thenReturn(mPreference);
+        mController.displayPreference(mPreferenceScreen);
+    }
+
+    @Test
+    public void onLeAudioHwDialogConfirmedAsLeAudioOffloadDisabled_shouldChangeProperty() {
+        SystemProperties.set(LE_AUDIO_OFFLOAD_DISABLED_PROPERTY, Boolean.toString(false));
+        mController.mChanged = true;
+
+        mController.onHwOffloadDialogConfirmed();
+        final boolean mode = SystemProperties.getBoolean(LE_AUDIO_OFFLOAD_DISABLED_PROPERTY, false);
+        assertThat(mode).isTrue();
+    }
+
+    @Test
+    public void onLeAudioHwDialogConfirmedAsLeAudioOffloadEnabled_shouldChangeProperty() {
+        SystemProperties.set(LE_AUDIO_OFFLOAD_DISABLED_PROPERTY, Boolean.toString(true));
+        mController.mChanged = true;
+
+        mController.onHwOffloadDialogConfirmed();
+        final boolean mode2 = SystemProperties.getBoolean(
+                LE_AUDIO_OFFLOAD_DISABLED_PROPERTY, true);
+        assertThat(mode2).isFalse();
+    }
+
+    @Test
+    public void onLeAudioHwDialogCanceled_shouldNotChangeProperty() {
+        SystemProperties.set(LE_AUDIO_OFFLOAD_DISABLED_PROPERTY, Boolean.toString(false));
+        mController.mChanged = true;
+
+        mController.onHwOffloadDialogCanceled();
+        final boolean mode = SystemProperties.getBoolean(LE_AUDIO_OFFLOAD_DISABLED_PROPERTY, false);
+        assertThat(mode).isFalse();
+    }
+}

tests/robotests/src/com/android/settings/development/DevelopmentSettingsDashboardFragmentTest.java

@@ -202,9 +202,9 @@ public class DevelopmentSettingsDashboardFragmentTest {
         assertThat(dialog).isNotNull();
         ShadowAlertDialogCompat shadowDialog = ShadowAlertDialogCompat.shadowOf(dialog);
         assertThat(shadowDialog.getTitle()).isEqualTo(
-                mContext.getString(R.string.bluetooth_disable_a2dp_hw_offload_dialog_title));
+                mContext.getString(R.string.bluetooth_disable_hw_offload_dialog_title));
         assertThat(shadowDialog.getMessage()).isEqualTo(
-                mContext.getString(R.string.bluetooth_disable_a2dp_hw_offload_dialog_message));
+                mContext.getString(R.string.bluetooth_disable_hw_offload_dialog_message));
     }
 
     @Test