Add a setting for the volume hush gesture

Bug: 75252670
Test: make -j20 RunSettingsRoboTests
Change-Id: I699aeec54eb516931b6d7c5b3fc864b169015c2f

tests/robotests/src/com/android/settings/gestures/PreventRingingGestureSettingsTest.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 PreventRingingGestureSettingsTest {
+
+    private PreventRingingGestureSettings mSettings;
+
+    @Before
+    public void setUp() {
+        mSettings = new PreventRingingGestureSettings();
+    }
+
+    @Test
+    public void testSearchIndexProvider_shouldIndexResource() {
+        final List<SearchIndexableResource> indexRes =
+                PreventRingingGestureSettings.SEARCH_INDEX_DATA_PROVIDER.getXmlResourcesToIndex(
+                RuntimeEnvironment.application, true /* enabled */);
+
+        assertThat(indexRes).isNotNull();
+        assertThat(indexRes.get(0).xmlResId).isEqualTo(mSettings.getPreferenceScreenResId());
+    }
+}