Add title and summary for "High usage" pref.

The logic for this pref lives in AnomalyPreferenceController.

Bug: 36924669
Test: RunSettingsRoboTest
Change-Id: Ib88d8e76e1af8a2270fcb671baf55e9f6564b96e

res/values/strings.xml

@@ -7410,11 +7410,11 @@
     <!-- Title for high usage item, which means power high usage [CHAR LIMIT=30] -->
     <string name="power_high_usage_title">High usage</string>
 
-    <!-- Summary for high usage item, showing one app is behaving abnormally [CHAR LIMIT=80] -->
+    <!-- Summary for high usage item, showing app/apps are behaving abnormally [CHAR LIMIT=80] -->
-    <string name="power_high_usage_summary"><xliff:g id="app">%1$s</xliff:g> behaving abnormally</string>
+    <plurals name="power_high_usage_summary">
-
+        <item quantity="one"><xliff:g id="app">%1$s</xliff:g> behaving abnormally</item>
-    <!-- Summary for high usage item, showing several apps are behaving abnormally [CHAR LIMIT=80] -->
+        <item quantity="other"><xliff:g id="number">%2$d</xliff:g> apps behaving abnormally</item>
-    <string name="power_high_usage_multiple_apps_summary"><xliff:g id="number">%1$d</xliff:g> apps behaving abnormally</string>
+    </plurals>
 
     <!-- Filter for apps allowed to use a lot of power [CHAR LIMIT=25] -->
     <string name="high_power_filter_on">Not optimized</string>

res/xml/power_usage_summary.xml

@@ -26,7 +26,8 @@
         android:layout="@layout/battery_header"/>
 
     <Preference
-        android:key="high_usage"/>
+        android:key="high_usage"
+        android:title="@string/power_high_usage_title"/>
 
     <PreferenceCategory
         android:key="device_usage_list">

src/com/android/settings/fuelgauge/PowerUsageSummary.java

@@ -139,7 +139,7 @@ public class PowerUsageSummary extends PowerUsageBase implements
                 @Override
                 public void onLoadFinished(Loader<List<Anomaly>> loader, List<Anomaly> data) {
                     // show high usage preference if possible
-                    mAnomalySummaryPreferenceController.updateHighUsagePreference(data);
+                    mAnomalySummaryPreferenceController.updateAnomalySummaryPreference(data);
                 }
 
                 @Override

src/com/android/settings/fuelgauge/anomaly/AnomalySummaryPreferenceController.java

@@ -16,10 +16,12 @@
 
 package com.android.settings.fuelgauge.anomaly;
 
+import android.content.Context;
 import android.support.annotation.VisibleForTesting;
 import android.support.v14.preference.PreferenceFragment;
 import android.support.v7.preference.Preference;
 
+import com.android.settings.R;
 import com.android.settings.SettingsActivity;
 import com.android.settings.fuelgauge.PowerUsageAnomalyDetails;
 
@@ -70,12 +72,18 @@ public class AnomalySummaryPreferenceController {
      *
      * @param anomalies used to update the summary, this method will store a reference of it
      */
-    public void updateHighUsagePreference(List<Anomaly> anomalies) {
+    public void updateAnomalySummaryPreference(List<Anomaly> anomalies) {
+        final Context context = mFragment.getContext();
         mAnomalies = anomalies;
 
         if (!mAnomalies.isEmpty()) {
             mAnomalyPreference.setVisible(true);
-            //TODO(b/36924669): update summary for anomaly preference
+            final int count = mAnomalies.size();
+            final String summary = context.getResources().getQuantityString(
+                    R.plurals.power_high_usage_summary, count,
+                    mAnomalies.get(0).displayName, count);
+
+            mAnomalyPreference.setSummary(summary);
         }
     }
 

tests/robotests/src/com/android/settings/fuelgauge/anomaly/AnomalySummaryPreferenceControllerTest.java

@@ -53,6 +53,7 @@ public class AnomalySummaryPreferenceControllerTest {
     @Anomaly.AnomalyType
     private static final int ANOMALY_TYPE = Anomaly.AnomalyType.WAKE_LOCK;
     private static final String PACKAGE_NAME = "com.android.app";
+    private static final String DISPLAY_NAME = "app";
     private static final int UID = 111;
 
     @Mock(answer = Answers.RETURNS_DEEP_STUBS)
@@ -75,32 +76,47 @@ public class AnomalySummaryPreferenceControllerTest {
         mContext = RuntimeEnvironment.application;
         mPreference = new Preference(mContext);
         mPreference.setKey(AnomalySummaryPreferenceController.ANOMALY_KEY);
-        when(mFragment.getPreferenceManager().findPreference(any())).thenReturn(mPreference);
+        when(mFragment.getPreferenceScreen().findPreference(any())).thenReturn(mPreference);
         when(mFragment.getFragmentManager()).thenReturn(mFragmentManager);
         when(mFragmentManager.beginTransaction()).thenReturn(mFragmentTransaction);
+        when(mFragment.getContext()).thenReturn(mContext);
 
         mAnomalyList = new ArrayList<>();
-        Anomaly anomaly = new Anomaly.Builder()
-                .setType(ANOMALY_TYPE)
-                .setUid(UID)
-                .setPackageName(PACKAGE_NAME)
-                .build();
-        mAnomalyList.add(anomaly);
 
         mAnomalySummaryPreferenceController = new AnomalySummaryPreferenceController(
                 mSettingsActivity, mFragment);
     }
 
     @Test
-    public void testUpdateHighUsagePreference_hasCorrectData() {
+    public void testUpdateHighUsageSummaryPreference_hasCorrectData() {
-        mAnomalySummaryPreferenceController.updateHighUsagePreference(mAnomalyList);
+        mAnomalySummaryPreferenceController.updateAnomalySummaryPreference(mAnomalyList);
 
-        //add more test when this method is complete
         assertThat(mAnomalySummaryPreferenceController.mAnomalies).isEqualTo(mAnomalyList);
     }
 
+    @Test
+    public void testUpdateAnomalySummaryPreference_oneAnomaly_showCorrectSummary() {
+        mAnomalyList.add(createTestAnomaly());
+
+        mAnomalySummaryPreferenceController.updateAnomalySummaryPreference(mAnomalyList);
+
+        assertThat(mPreference.getSummary()).isEqualTo("app behaving abnormally");
+    }
+
+    @Test
+    public void testUpdateAnomalySummaryPreference_multipleAnomalies_showCorrectSummary() {
+        mAnomalyList.add(createTestAnomaly());
+        mAnomalyList.add(createTestAnomaly());
+
+        mAnomalySummaryPreferenceController.updateAnomalySummaryPreference(mAnomalyList);
+
+        assertThat(mPreference.getSummary()).isEqualTo("2 apps behaving abnormally");
+    }
+
     @Test
     public void testOnPreferenceTreeClick_oneAnomaly_showDialog() {
+
+        mAnomalyList.add(createTestAnomaly());
         mAnomalySummaryPreferenceController.mAnomalies = mAnomalyList;
 
         mAnomalySummaryPreferenceController.onPreferenceTreeClick(mPreference);
@@ -110,4 +126,13 @@ public class AnomalySummaryPreferenceControllerTest {
         verify(mFragmentTransaction).commit();
     }
 
+    private Anomaly createTestAnomaly() {
+        return new Anomaly.Builder()
+                .setType(ANOMALY_TYPE)
+                .setUid(UID)
+                .setPackageName(PACKAGE_NAME)
+                .setDisplayName(DISPLAY_NAME)
+                .build();
+    }
+
 }