Add 'Reach to check' to lock screen settings

Also added to Gestures page to make sure we're following the
same structure for all gestures.

Change-Id: Iaa9e53e870165801decfa427441d01ee69bcce6d
Note: using dummy video. dependency on b/112442049
Bug: 111414690
Test: make RunSettingsRoboTests ROBOTEST_FILTER=ReachGesturePreferenceControllerTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=ReachGestureSettings

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

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2016 The Android Open Source Project
+ * Copyright (C) 2018 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.

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

@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2018 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 static com.android.settings.core.BasePreferenceController.AVAILABLE;
+import static com.android.settings.core.BasePreferenceController.UNSUPPORTED_ON_DEVICE;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Matchers.anyInt;
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+
+import com.android.internal.hardware.AmbientDisplayConfiguration;
+import com.android.settings.dashboard.suggestions.SuggestionFeatureProviderImpl;
+import com.android.settings.testutils.SettingsRobolectricTestRunner;
+
+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.RuntimeEnvironment;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+public class ReachGesturePreferenceControllerTest {
+
+    private static final String KEY_REACH = "gesture_reach";
+
+    @Mock(answer = Answers.RETURNS_DEEP_STUBS)
+    private Context mContext;
+    @Mock
+    private AmbientDisplayConfiguration mAmbientDisplayConfiguration;
+
+    private ReachGesturePreferenceController mController;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mController = new ReachGesturePreferenceController(mContext, KEY_REACH);
+        mController.setConfig(mAmbientDisplayConfiguration);
+    }
+
+    @Test
+    public void testIsChecked_configIsSet_shouldReturnTrue() {
+        // Set the setting to be enabled.
+        when(mAmbientDisplayConfiguration.reachGestureEnabled(anyInt())).thenReturn(true);
+        assertThat(mController.isChecked()).isTrue();
+    }
+
+    @Test
+    public void testIsChecked_configIsNotSet_shouldReturnFalse() {
+        // Set the setting to be disabled.
+        when(mAmbientDisplayConfiguration.reachGestureEnabled(anyInt())).thenReturn(false);
+        assertThat(mController.isChecked()).isFalse();
+    }
+
+    @Test
+    public void getAvailabilityStatus_gestureNotSupported_UNSUPPORTED_ON_DEVICE() {
+        when(mAmbientDisplayConfiguration.reachGestureAvailable()).thenReturn(false);
+        final int availabilityStatus = mController.getAvailabilityStatus();
+
+        assertThat(availabilityStatus).isEqualTo(UNSUPPORTED_ON_DEVICE);
+    }
+
+    @Test
+    public void getAvailabilityStatus_gestureSupported_AVAILABLE() {
+        when(mAmbientDisplayConfiguration.reachGestureAvailable()).thenReturn(true);
+        final int availabilityStatus = mController.getAvailabilityStatus();
+
+        assertThat(availabilityStatus).isEqualTo(AVAILABLE);
+    }
+
+    @Test
+    public void isSliceableCorrectKey_returnsTrue() {
+        final ReachGesturePreferenceController controller =
+                new ReachGesturePreferenceController(mContext, "gesture_reach");
+        assertThat(controller.isSliceable()).isTrue();
+    }
+
+    @Test
+    public void isSliceableIncorrectKey_returnsFalse() {
+        final ReachGesturePreferenceController controller =
+                new ReachGesturePreferenceController(mContext, "bad_key");
+        assertThat(controller.isSliceable()).isFalse();
+    }
+}

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

@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2018 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 static com.google.common.truth.Truth.assertThat;
+
+import android.provider.SearchIndexableResource;
+
+import com.android.settings.testutils.SettingsRobolectricTestRunner;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RuntimeEnvironment;
+
+import java.util.List;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+public class ReachGestureSettingsTest {
+
+    private ReachGestureSettings mSettings;
+
+    @Before
+    public void setUp() {
+        mSettings = new ReachGestureSettings();
+    }
+
+    @Test
+    public void testSearchIndexProvider_shouldIndexResource() {
+        final List<SearchIndexableResource> indexRes =
+            ReachGestureSettings.SEARCH_INDEX_DATA_PROVIDER.getXmlResourcesToIndex(
+                RuntimeEnvironment.application, true /* enabled */);
+
+        assertThat(indexRes).isNotNull();
+        assertThat(indexRes.get(0).xmlResId).isEqualTo(mSettings.getPreferenceScreenResId());
+    }
+}