Update Accessbility vibration settings.

- Get notification vibration and haptic feedback intensity repectively.
- Use xliffs to compose these strings.
- Use the version that passed in Vibrator.class to get Vibrator
  instance.
- Refactor switch/case part in getSummary() of
  VibrationIntensityPreferenceController.
  Let AccessibilitySettings and VibrationIntensityPreferenceController
  both call it.
- Add robolectric test for method: updateVibrationSummary().
- Refine test method, use real preference and test summary value.
- Remove redundancy.

Bug: 75322064
Test: make ROBOTEST_FILTER=AccessibilitySettingsTest RunSettingsRoboTests
Change-Id: Ia3c7447b1ab1e336b36ad439800b673821417e48
Merged-In: Ia3c7447b1ab1e336b36ad439800b673821417e48

tests/robotests/src/com/android/settings/accessibility/AccessibilitySettingsTest.java

@@ -18,7 +18,16 @@ package com.android.settings.accessibility;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import static org.mockito.Matchers.anyString;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.when;
+
 import android.content.Context;
+import android.os.Bundle;
+import android.os.Vibrator;
+import android.provider.Settings;
+import android.support.v7.preference.Preference;
 
 import com.android.settings.R;
 import com.android.settings.testutils.SettingsRobolectricTestRunner;
@@ -26,6 +35,8 @@ import com.android.settings.testutils.XmlTestUtils;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
 import org.robolectric.RuntimeEnvironment;
 
 import java.util.ArrayList;
@@ -38,11 +49,38 @@ public class AccessibilitySettingsTest {
     public void testNonIndexableKeys_existInXmlLayout() {
         final Context context = RuntimeEnvironment.application;
         final List<String> niks = AccessibilitySettings.SEARCH_INDEX_DATA_PROVIDER
-            .getNonIndexableKeys(context);
+                .getNonIndexableKeys(context);
         final List<String> keys = new ArrayList<>();
 
         keys.addAll(XmlTestUtils.getKeysFromPreferenceXml(context, R.xml.accessibility_settings));
 
         assertThat(keys).containsAllIn(niks);
     }
-}
+
+    @Test
+    public void testUpdateVibrationSummary_shouldUpdateSummary() {
+        MockitoAnnotations.initMocks(this);
+        final Context mContext = RuntimeEnvironment.application;
+        final AccessibilitySettings mSettings = spy(new AccessibilitySettings());
+
+        final Preference mVibrationPreferenceScreen = new Preference(mContext);
+        doReturn(mVibrationPreferenceScreen).when(mSettings).findPreference(anyString());
+
+        doReturn(mContext).when(mSettings).getContext();
+
+        mVibrationPreferenceScreen.setKey("vibration_preference_screen");
+
+        Settings.System.putInt(mContext.getContentResolver(),
+                Settings.System.NOTIFICATION_VIBRATION_INTENSITY,
+                Vibrator.VIBRATION_INTENSITY_OFF);
+
+        Settings.System.putInt(mContext.getContentResolver(),
+                Settings.System.HAPTIC_FEEDBACK_INTENSITY,
+                Vibrator.VIBRATION_INTENSITY_OFF);
+
+        mSettings.updateVibrationSummary(mVibrationPreferenceScreen);
+        assertThat(mVibrationPreferenceScreen.getSummary()).isEqualTo(
+                VibrationIntensityPreferenceController.getIntensityString(mContext,
+                        Vibrator.VIBRATION_INTENSITY_OFF));
+    }
+}