Add settings for the assist gesture.

Availability of the gesture is gated by a new FeatureProvider.

Test: make -j RunSettingsRoboTests; manual test on
      supported/unsupported configurations.

Change-Id: I3529367a73e33370d5112b91d5144293ffa7fa22

res/values/strings.xml

@@ -8030,6 +8030,12 @@
     <!-- Summary text for fingerprint swipe for notifications (device) [CHAR LIMIT=160]-->
     <string name="fingerprint_swipe_for_notifications_summary" product="device">To check your notifications, swipe down on the fingerprint sensor on the back of your device.</string>
 
+    <!-- Title text for the assist gesture [CHAR LIMIT=60]-->
+    <string name="assist_gesture_title">Assist gesture</string>
+
+    <!-- Summary text for the assist gesture [CHAR LIMIT=160]-->
+    <string name="assist_gesture_summary"></string>
+
     <!-- Switch text for each gesture setting state -->
     <string name="gesture_setting_on">On</string>
     <string name="gesture_setting_off">Off</string>

res/xml/assist_gesture_settings.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright (C) 2017 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.
+  -->
+
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
+                  xmlns:app="http://schemas.android.com/apk/res-auto"
+                  android:title="@string/assist_gesture_title">
+
+    <com.android.settings.widget.VideoPreference
+        android:key="gesture_assist_video"
+        app:animation="@raw/gesture_assist"
+        app:preview="@drawable/gesture_assist" />
+
+    <SwitchPreference
+        android:key="gesture_assist"
+        android:title="@string/assist_gesture_title"
+        android:summary="@string/assist_gesture_summary" />
+
+</PreferenceScreen>

res/xml/gesture_settings.xml

@@ -19,6 +19,13 @@
     android:title="@string/gesture_preference_title"
     settings:keywords="@string/keywords_gesture">
 
+    <com.android.settings.gestures.GesturePreference
+        android:key="gesture_assist"
+        android:title="@string/assist_gesture_title"
+        android:summary="@string/assist_gesture_summary"
+        settings:animation="@raw/gesture_assist"
+        settings:preview="@drawable/gesture_assist"/>
+
     <com.android.settings.gestures.GesturePreference
         android:key="gesture_swipe_down_fingerprint"
         android:title="@string/fingerprint_swipe_for_notifications_title"
@@ -54,4 +61,4 @@
         settings:animation="@raw/gesture_ambient_lift"
         settings:preview="@drawable/gesture_ambient_lift"/>
 
-</PreferenceScreen>
+</PreferenceScreen>

res/xml/language_and_input.xml

@@ -52,6 +52,11 @@
         android:key="gesture_settings_category"
         android:title="@string/gesture_preference_title">
 
+        <Preference
+            android:key="gesture_assist"
+            android:title="@string/assist_gesture_title"
+            android:fragment="com.android.settings.gestures.AssistGestureSettings"/>
+
         <Preference
             android:key="gesture_swipe_down_fingerprint"
             android:title="@string/fingerprint_swipe_for_notifications_title"
@@ -114,4 +119,4 @@
 
     </PreferenceCategory>
 
-</PreferenceScreen>
+</PreferenceScreen>

res/xml/manage_assist.xml

@@ -24,6 +24,11 @@
         android:title="@string/default_assist_title"
         android:summary="@string/default_assist_none"/>
 
+    <Preference
+        android:key="gesture_assist"
+        android:title="@string/assist_gesture_title"
+        android:fragment="com.android.settings.gestures.AssistGestureSettings"/>
+
     <SwitchPreference
         android:key="context"
         android:title="@string/assist_access_context_title"

src/com/android/settings/applications/ManageAssist.java

@@ -29,6 +29,8 @@ import com.android.internal.app.AssistUtils;
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.settings.R;
 import com.android.settings.SettingsPreferenceFragment;
+import com.android.settings.gestures.AssistGestureFeatureProvider;
+import com.android.settings.overlay.FeatureFactory;
 import com.android.settings.voice.VoiceInputListPreference;
 
 /**
@@ -38,6 +40,7 @@ public class ManageAssist extends SettingsPreferenceFragment
         implements Preference.OnPreferenceChangeListener {
 
     private static final String KEY_DEFAULT_ASSIST = "default_assist";
+    private static final String KEY_ASSIST_GESTURE = "gesture_assist";
     private static final String KEY_CONTEXT = "context";
     private static final String KEY_SCREENSHOT = "screenshot";
     private static final String KEY_VOICE_INPUT = "voice_input_settings";
@@ -50,6 +53,9 @@ public class ManageAssist extends SettingsPreferenceFragment
     private VoiceInputListPreference mVoiceInputPref;
     private Handler mHandler = new Handler();
 
+    private Preference mAssistGesturePref;
+    private AssistGestureFeatureProvider mAssistGestureFeatureProvider;
+
     @Override
     public void onCreate(Bundle icicle) {
         super.onCreate(icicle);
@@ -58,6 +64,10 @@ public class ManageAssist extends SettingsPreferenceFragment
         mDefaultAssitPref = (DefaultAssistPreference) findPreference(KEY_DEFAULT_ASSIST);
         mDefaultAssitPref.setOnPreferenceChangeListener(this);
 
+        mAssistGesturePref = findPreference(KEY_ASSIST_GESTURE);
+        mAssistGestureFeatureProvider =
+                FeatureFactory.getFactory(getContext()).getAssistGestureFeatureProvider();
+
         mContextPref = (SwitchPreference) findPreference(KEY_CONTEXT);
         mContextPref.setChecked(Settings.Secure.getInt(getContentResolver(),
                 Settings.Secure.ASSIST_STRUCTURE_ENABLED, 1) != 0);
@@ -142,6 +152,12 @@ public class ManageAssist extends SettingsPreferenceFragment
             getPreferenceScreen().removePreference(mFlashPref);
         }
 
+        if (hasAssistant && mAssistGestureFeatureProvider.isSupported(getContext())) {
+            getPreferenceScreen().addPreference(mAssistGesturePref);
+        } else {
+            getPreferenceScreen().removePreference(mAssistGesturePref);
+        }
+
         if (hasAssistant && AssistUtils.allowDisablingAssistDisclosure(getContext())) {
             getPreferenceScreen().addPreference(mFlashPref);
         } else {

src/com/android/settings/core/gateway/SettingsGateway.java

@@ -81,6 +81,7 @@ import com.android.settings.enterprise.EnterprisePrivacySettings;
 import com.android.settings.fuelgauge.BatterySaverSettings;
 import com.android.settings.fuelgauge.PowerUsageDetail;
 import com.android.settings.fuelgauge.PowerUsageSummary;
+import com.android.settings.gestures.AssistGestureSettings;
 import com.android.settings.gestures.DoubleTapPowerSettings;
 import com.android.settings.gestures.DoubleTapScreenSettings;
 import com.android.settings.gestures.DoubleTwistGestureSettings;
@@ -182,6 +183,7 @@ public class SettingsGateway {
             AccountSyncSettings.class.getName(),
             AccountSettings.class.getName(),
             GestureSettings.class.getName(),
+            AssistGestureSettings.class.getName(),
             SwipeToNotificationSettings.class.getName(),
             DoubleTapPowerSettings.class.getName(),
             DoubleTapScreenSettings.class.getName(),

src/com/android/settings/gestures/AssistGestureFeatureProvider.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2017 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.gestures;
+
+import android.content.Context;
+
+/** Feature provider for the assist gesture. */
+public interface AssistGestureFeatureProvider {
+
+    /** Returns true if the assist gesture is supported. */
+    boolean isSupported(Context context);
+
+}

src/com/android/settings/gestures/AssistGestureFeatureProviderImpl.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2017 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.gestures;
+
+import android.content.Context;
+
+public class AssistGestureFeatureProviderImpl implements AssistGestureFeatureProvider {
+
+    @Override
+    public boolean isSupported(Context context) {
+        return false;
+    }
+
+}

src/com/android/settings/gestures/AssistGesturePreferenceController.java

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2017 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.gestures;
+
+import android.content.Context;
+import android.provider.Settings;
+import android.support.v7.preference.Preference;
+import android.util.ArrayMap;
+
+import com.android.settings.core.lifecycle.Lifecycle;
+import com.android.settings.overlay.FeatureFactory;
+import com.android.settings.search2.InlineSwitchPayload;
+import com.android.settings.search2.ResultPayload;
+
+public class AssistGesturePreferenceController extends GesturePreferenceController {
+
+    private static final String PREF_KEY_VIDEO = "gesture_assist_video";
+    private static final String PREF_KEY_ASSIST_GESTURE = "gesture_assist";
+
+    public AssistGesturePreferenceController(Context context, Lifecycle lifecycle) {
+        super(context, lifecycle);
+    }
+
+    @Override
+    public boolean isAvailable() {
+        AssistGestureFeatureProvider provider =
+                FeatureFactory.getFactory(mContext).getAssistGestureFeatureProvider();
+        return provider.isSupported(mContext);
+    }
+
+    @Override
+    protected String getVideoPrefKey() {
+        return PREF_KEY_VIDEO;
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return PREF_KEY_ASSIST_GESTURE;
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        final boolean enabled = (boolean) newValue;
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ASSIST_GESTURE_ENABLED, enabled ? 1 : 0);
+        return true;
+    }
+
+    @Override
+    protected boolean isSwitchPrefEnabled() {
+        final int assistGestureEnabled = Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.ASSIST_GESTURE_ENABLED, 1);
+        return assistGestureEnabled != 0;
+    }
+}

src/com/android/settings/gestures/AssistGestureSettings.java

@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2017 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.gestures;
+
+import android.content.Context;
+import android.provider.SearchIndexableResource;
+
+import com.android.internal.logging.nano.MetricsProto;
+import com.android.settings.R;
+import com.android.settings.core.PreferenceController;
+import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.overlay.FeatureFactory;
+import com.android.settings.search.BaseSearchIndexProvider;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class AssistGestureSettings extends DashboardFragment {
+
+    private static final String TAG = "AssistGesture";
+
+    @Override
+    public int getMetricsCategory() {
+        return MetricsProto.MetricsEvent.VIEW_UNKNOWN;
+    }
+
+    @Override
+    protected String getLogTag() {
+        return TAG;
+    }
+
+    @Override
+    protected int getPreferenceScreenResId() {
+        return R.xml.assist_gesture_settings;
+    }
+
+    @Override
+    protected List<PreferenceController> getPreferenceControllers(Context context) {
+        final List<PreferenceController> controllers = new ArrayList<>();
+        controllers.add(new AssistGesturePreferenceController(context, getLifecycle()));
+        return controllers;
+    }
+
+    public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider() {
+                @Override
+                public List<SearchIndexableResource> getXmlResourcesToIndex(
+                        Context context, boolean enabled) {
+                    if (!FeatureFactory.getFactory(context).getDashboardFeatureProvider(context)
+                            .isEnabled()) {
+                        return null;
+                    }
+                    final SearchIndexableResource sir = new SearchIndexableResource(context);
+                    sir.xmlResId = R.xml.assist_gesture_settings;
+                    return Arrays.asList(sir);
+                }
+            };
+}
+

src/com/android/settings/gestures/GestureSettings.java

@@ -58,6 +58,7 @@ public class GestureSettings extends DashboardFragment {
         final AmbientDisplayConfiguration ambientConfig = new AmbientDisplayConfiguration(context);
         final List<PreferenceController> controllers = new ArrayList<>();
         final Lifecycle lifecycle = getLifecycle();
+        controllers.add(new AssistGesturePreferenceController(context, lifecycle));
         controllers.add(new SwipeToNotificationPreferenceController(context, lifecycle));
         controllers.add(new DoubleTapPowerPreferenceController(context, lifecycle));
         controllers.add(new DoubleTwistPreferenceController(context, lifecycle));
@@ -72,6 +73,7 @@ public class GestureSettings extends DashboardFragment {
     public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
         super.onCreatePreferences(savedInstanceState, rootKey);
         mPreferences = new ArrayList();
+        addPreferenceToTrackingList(AssistGesturePreferenceController.class);
         addPreferenceToTrackingList(SwipeToNotificationPreferenceController.class);
         addPreferenceToTrackingList(DoubleTapScreenPreferenceController.class);
         addPreferenceToTrackingList(DoubleTwistPreferenceController.class);

src/com/android/settings/language/LanguageAndInputSettings.java

@@ -28,6 +28,7 @@ import com.android.settings.R;
 import com.android.settings.core.PreferenceController;
 import com.android.settings.core.lifecycle.Lifecycle;
 import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.gestures.AssistGesturePreferenceController;
 import com.android.settings.gestures.DoubleTapPowerPreferenceController;
 import com.android.settings.gestures.DoubleTapScreenPreferenceController;
 import com.android.settings.gestures.DoubleTwistPreferenceController;
@@ -88,7 +89,7 @@ public class LanguageAndInputSettings extends DashboardFragment {
         }
         controllers.add(gameControllerPreferenceController);
         // Gestures
-
+        controllers.add(new AssistGesturePreferenceController(context, lifecycle));
         controllers.add(new SwipeToNotificationPreferenceController(context, lifecycle));
         controllers.add(new DoubleTwistPreferenceController(context, lifecycle));
         controllers.add(new DoubleTapPowerPreferenceController(context, lifecycle));

src/com/android/settings/overlay/FeatureFactory.java

@@ -27,6 +27,7 @@ import com.android.settings.dashboard.DashboardFeatureProvider;
 import com.android.settings.dashboard.SuggestionFeatureProvider;
 import com.android.settings.enterprise.EnterprisePrivacyFeatureProvider;
 import com.android.settings.fuelgauge.PowerUsageFeatureProvider;
+import com.android.settings.gestures.AssistGestureFeatureProvider;
 import com.android.settings.localepicker.LocaleFeatureProvider;
 import com.android.settings.security.SecurityFeatureProvider;
 import com.android.settings.search2.SearchFeatureProvider;
@@ -68,6 +69,8 @@ public abstract class FeatureFactory {
         return sFactory;
     }
 
+    public abstract AssistGestureFeatureProvider getAssistGestureFeatureProvider();
+
     public abstract SuggestionFeatureProvider getSuggestionFeatureProvider();
 
     public abstract SupportFeatureProvider getSupportFeatureProvider(Context context);

src/com/android/settings/overlay/FeatureFactoryImpl.java

@@ -38,6 +38,8 @@ import com.android.settings.enterprise.EnterprisePrivacyFeatureProvider;
 import com.android.settings.enterprise.EnterprisePrivacyFeatureProviderImpl;
 import com.android.settings.fuelgauge.PowerUsageFeatureProvider;
 import com.android.settings.fuelgauge.PowerUsageFeatureProviderImpl;
+import com.android.settings.gestures.AssistGestureFeatureProvider;
+import com.android.settings.gestures.AssistGestureFeatureProviderImpl;
 import com.android.settings.localepicker.LocaleFeatureProvider;
 import com.android.settings.localepicker.LocaleFeatureProviderImpl;
 import com.android.settings.search2.SearchFeatureProvider;
@@ -61,6 +63,7 @@ public class FeatureFactoryImpl extends FeatureFactory {
     private SecurityFeatureProvider mSecurityFeatureProvider;
     private SuggestionFeatureProvider mSuggestionFeatureProvider;
     private PowerUsageFeatureProvider mPowerUsageFeatureProvider;
+    private AssistGestureFeatureProvider mAssistGestureFeatureProvider;
 
     @Override
     public SupportFeatureProvider getSupportFeatureProvider(Context context) {
@@ -154,4 +157,12 @@ public class FeatureFactoryImpl extends FeatureFactory {
         }
         return mSuggestionFeatureProvider;
     }
+
+    @Override
+    public AssistGestureFeatureProvider getAssistGestureFeatureProvider() {
+        if (mAssistGestureFeatureProvider == null) {
+            mAssistGestureFeatureProvider = new AssistGestureFeatureProviderImpl();
+        }
+        return mAssistGestureFeatureProvider;
+    }
 }

src/com/android/settings/search/SearchIndexableResources.java

@@ -50,6 +50,7 @@ import com.android.settings.fuelgauge.BatterySaverSettings;
 import com.android.settings.fuelgauge.PowerUsageAdvanced;
 import com.android.settings.fuelgauge.PowerUsageDetail;
 import com.android.settings.fuelgauge.PowerUsageSummary;
+import com.android.settings.gestures.AssistGestureSettings;
 import com.android.settings.gestures.DoubleTapPowerSettings;
 import com.android.settings.gestures.DoubleTapScreenSettings;
 import com.android.settings.gestures.DoubleTwistGestureSettings;
@@ -136,6 +137,7 @@ public final class SearchIndexableResources {
                 R.xml.special_access, R.drawable.ic_settings_applications);
         addIndex(UserSettings.class, NO_DATA_RES_ID, R.drawable.ic_settings_multiuser);
         addIndex(GestureSettings.class, NO_DATA_RES_ID, R.drawable.ic_settings_gestures);
+        addIndex(AssistGestureSettings.class, NO_DATA_RES_ID, R.drawable.ic_settings_gestures);
         addIndex(PickupGestureSettings.class, NO_DATA_RES_ID, R.drawable.ic_settings_gestures);
         addIndex(DoubleTapScreenSettings.class, NO_DATA_RES_ID, R.drawable.ic_settings_gestures);
         addIndex(DoubleTapPowerSettings.class, NO_DATA_RES_ID, R.drawable.ic_settings_gestures);

tests/robotests/src/com/android/settings/gestures/AssistGesturePreferenceControllerTest.java

@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2017 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.gestures;
+
+import android.content.Context;
+import android.provider.Settings;
+
+import com.android.settings.SettingsRobolectricTestRunner;
+import com.android.settings.TestConfig;
+import com.android.settings.testutils.FakeFeatureFactory;
+
+import com.android.settings.search2.InlineSwitchPayload;
+import com.android.settings.search2.ResultPayload;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Answers;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.annotation.Config;
+import org.robolectric.shadows.ShadowApplication;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static android.provider.Settings.Secure.ASSIST_GESTURE_ENABLED;
+import static com.google.common.truth.Truth.assertThat;
+import static org.mockito.Matchers.anyInt;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class AssistGesturePreferenceControllerTest {
+
+    @Mock(answer = Answers.RETURNS_DEEP_STUBS)
+    private Context mContext;
+    private FakeFeatureFactory mFactory;
+    private AssistGesturePreferenceController mController;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        FakeFeatureFactory.setupForTest(mContext);
+        mFactory = (FakeFeatureFactory) FakeFeatureFactory.getFactory(mContext);
+        mController = new AssistGesturePreferenceController(mContext, null);
+    }
+
+    @Test
+    public void isAvailable_whenSupported_shouldReturnTrue() {
+        when(mFactory.assistGestureFeatureProvider.isSupported(mContext)).thenReturn(true);
+        assertThat(mController.isAvailable()).isTrue();
+    }
+
+    @Test
+    public void isAvailable_whenUnsupported_shouldReturnFalse() {
+        when(mFactory.assistGestureFeatureProvider.isSupported(mContext)).thenReturn(false);
+        assertThat(mController.isAvailable()).isFalse();
+    }
+
+    @Test
+    public void testSwitchEnabled_configIsSet_shouldReturnTrue() {
+        // Set the setting to be enabled.
+        final Context context = ShadowApplication.getInstance().getApplicationContext();
+        Settings.System.putInt(context.getContentResolver(), ASSIST_GESTURE_ENABLED, 1);
+        mController = new AssistGesturePreferenceController(context, null);
+
+        assertThat(mController.isSwitchPrefEnabled()).isTrue();
+    }
+
+    @Test
+    public void testSwitchEnabled_configIsNotSet_shouldReturnFalse() {
+        // Set the setting to be disabled.
+        final Context context = ShadowApplication.getInstance().getApplicationContext();
+        Settings.System.putInt(context.getContentResolver(), ASSIST_GESTURE_ENABLED, 0);
+        mController = new AssistGesturePreferenceController(context, null);
+
+        assertThat(mController.isSwitchPrefEnabled()).isFalse();
+    }
+}
+

tests/robotests/src/com/android/settings/gestures/AssistGestureSettingsTest.java

@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2017 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.gestures;
+
+import android.content.Context;
+import android.provider.SearchIndexableResource;
+
+import com.android.settings.R;
+import com.android.settings.SettingsRobolectricTestRunner;
+import com.android.settings.TestConfig;
+import com.android.settings.core.PreferenceController;
+import com.android.settings.testutils.FakeFeatureFactory;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Answers;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.annotation.Config;
+import org.robolectric.shadows.ShadowApplication;
+
+import java.util.List;
+
+import static com.google.common.truth.Truth.assertThat;
+import static org.mockito.Mockito.when;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class AssistGestureSettingsTest {
+    @Mock(answer = Answers.RETURNS_DEEP_STUBS)
+    private Context mContext;
+    private AssistGestureSettings mSettings;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        FakeFeatureFactory.setupForTest(mContext);
+        final FakeFeatureFactory factory =
+                (FakeFeatureFactory) FakeFeatureFactory.getFactory(mContext);
+        when(factory.dashboardFeatureProvider.isEnabled()).thenReturn(true);
+        mSettings = new AssistGestureSettings();
+    }
+
+    @Test
+    public void testGetPreferenceScreenResId() {
+        assertThat(mSettings.getPreferenceScreenResId())
+                .isEqualTo(R.xml.assist_gesture_settings);
+    }
+
+    @Test
+    public void testGetPreferenceControllers_shouldAllBeCreated() {
+        final List<PreferenceController> controllers =
+            mSettings.getPreferenceControllers(mContext);
+        assertThat(controllers.isEmpty()).isFalse();
+    }
+
+    @Test
+    public void testSearchIndexProvider_shouldIndexResource() {
+        final List<SearchIndexableResource> indexRes =
+                AssistGestureSettings.SEARCH_INDEX_DATA_PROVIDER.getXmlResourcesToIndex(
+                        ShadowApplication.getInstance().getApplicationContext(),
+                        true /* enabled */);
+
+        assertThat(indexRes).isNotNull();
+        assertThat(indexRes.get(0).xmlResId).isEqualTo(mSettings.getPreferenceScreenResId());
+    }
+}
+

tests/robotests/src/com/android/settings/search/DatabaseIndexingManagerTest.java

@@ -210,7 +210,7 @@ public class DatabaseIndexingManagerTest {
         mManager.indexOneSearchIndexableData(mDb, localeStr, resource,
                 new HashMap<>());
         Cursor cursor = mDb.rawQuery("SELECT * FROM prefs_index", null);
-        assertThat(cursor.getCount()).isEqualTo(6);
+        assertThat(cursor.getCount()).isEqualTo(7);
     }
 
     @Test
@@ -224,7 +224,7 @@ public class DatabaseIndexingManagerTest {
         Cursor cursor = mDb.rawQuery("SELECT * FROM prefs_index WHERE enabled = 0", null);
         assertThat(cursor.getCount()).isEqualTo(2);
         cursor = mDb.rawQuery("SELECT * FROM prefs_index WHERE enabled = 1", null);
-        assertThat(cursor.getCount()).isEqualTo(4);
+        assertThat(cursor.getCount()).isEqualTo(5);
     }
 
     @Test
@@ -673,4 +673,4 @@ public class DatabaseIndexingManagerTest {
         niks.put(packageName, keysList);
         return niks;
     }
-}
+}

tests/robotests/src/com/android/settings/search/XmlParserUtilTest.java

@@ -60,7 +60,7 @@ public class XmlParserUtilTest {
                 "com.android.settings.gestures.GesturePreference");
         final AttributeSet attrs = Xml.asAttributeSet(parser);
         String title = XmlParserUtils.getDataTitle(mContext, attrs);
-        String expTitle = mContext.getString(R.string.fingerprint_swipe_for_notifications_title);
+        String expTitle = mContext.getString(R.string.assist_gesture_title);
         assertThat(title).isEqualTo(expTitle);
     }
 
@@ -79,7 +79,7 @@ public class XmlParserUtilTest {
                 "com.android.settings.gestures.GesturePreference");
         final AttributeSet attrs = Xml.asAttributeSet(parser);
         String key = XmlParserUtils.getDataKey(mContext, attrs);
-        String expKey = "gesture_swipe_down_fingerprint";
+        String expKey = "gesture_assist";
         assertThat(key).isEqualTo(expKey);
     }
 
@@ -89,7 +89,7 @@ public class XmlParserUtilTest {
                 "com.android.settings.gestures.GesturePreference");
         final AttributeSet attrs = Xml.asAttributeSet(parser);
         String summary = XmlParserUtils.getDataSummary(mContext, attrs);
-        String expSummary = mContext.getString(R.string.fingerprint_swipe_for_notifications_summary);
+        String expSummary = mContext.getString(R.string.assist_gesture_summary);
         assertThat(summary).isEqualTo(expSummary);
 
     }

tests/robotests/src/com/android/settings/testutils/FakeFeatureFactory.java

@@ -23,6 +23,7 @@ import com.android.settings.dashboard.DashboardFeatureProvider;
 import com.android.settings.dashboard.SuggestionFeatureProvider;
 import com.android.settings.enterprise.EnterprisePrivacyFeatureProvider;
 import com.android.settings.fuelgauge.PowerUsageFeatureProvider;
+import com.android.settings.gestures.AssistGestureFeatureProvider;
 import com.android.settings.localepicker.LocaleFeatureProvider;
 import com.android.settings.overlay.FeatureFactory;
 import com.android.settings.overlay.SupportFeatureProvider;
@@ -51,6 +52,7 @@ public class FakeFeatureFactory extends FeatureFactory {
     public final SurveyFeatureProvider surveyFeatureProvider;
     public final SecurityFeatureProvider securityFeatureProvider;
     public final SuggestionFeatureProvider suggestionsFeatureProvider;
+    public final AssistGestureFeatureProvider assistGestureFeatureProvider;
 
     /**
      * Call this in {@code @Before} method of the test class to use fake factory.
@@ -84,6 +86,7 @@ public class FakeFeatureFactory extends FeatureFactory {
         surveyFeatureProvider = mock(SurveyFeatureProvider.class);
         securityFeatureProvider = mock(SecurityFeatureProvider.class);
         suggestionsFeatureProvider = mock(SuggestionFeatureProvider.class);
+        assistGestureFeatureProvider = mock(AssistGestureFeatureProvider.class);
     }
 
     @Override
@@ -140,4 +143,9 @@ public class FakeFeatureFactory extends FeatureFactory {
     public SecurityFeatureProvider getSecurityFeatureProvider() {
         return securityFeatureProvider;
     }
+
+    @Override
+    public AssistGestureFeatureProvider getAssistGestureFeatureProvider() {
+        return assistGestureFeatureProvider;
+    }
 }