Fix crash when opening battery page

The settings crashes when opening battery usage detail page from
installed app page. Main reason is that it trying to open obsolete
page. This cl directs it to open AdvancedPowerUsageDetail instead.

Following cl will make InstalledAppDetail show calibrated percentage,
which is trakced in b/36816681

Bug: 36792973
Test: RunSettingsRoboTests
Change-Id: Ie63e64e543ed3b28974ffdda8b42c97e7749a0f7
(cherry picked from commit fac713318c)

tests/robotests/src/com/android/settings/applications/InstalledAppDetailsTest.java

@@ -22,12 +22,16 @@ import android.app.admin.DevicePolicyManager;
 import android.content.Context;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageInfo;
+import android.os.BatteryStats;
 import android.os.UserManager;
 import android.support.v7.preference.Preference;
 import android.view.View;
 import android.widget.Button;
 
+import com.android.internal.os.BatterySipper;
+import com.android.internal.os.BatteryStatsHelper;
 import com.android.settings.R;
+import com.android.settings.SettingsActivity;
 import com.android.settings.SettingsRobolectricTestRunner;
 import com.android.settings.TestConfig;
 import com.android.settings.applications.instantapps.InstantAppButtonsController;
@@ -48,10 +52,13 @@ import org.robolectric.annotation.Config;
 import org.robolectric.util.ReflectionHelpers;
 
 import static com.google.common.truth.Truth.assertThat;
+
 import static org.mockito.Matchers.any;
 import static org.mockito.Matchers.anyString;
+import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
@@ -61,23 +68,37 @@ import static org.mockito.Mockito.when;
 public final class InstalledAppDetailsTest {
     @Mock(answer = Answers.RETURNS_DEEP_STUBS)
     private Context mContext;
-
     @Mock
     ApplicationFeatureProvider mApplicationFeatureProvider;
-
     @Mock(answer = Answers.RETURNS_DEEP_STUBS)
     private UserManager mUserManager;
     @Mock
-    private Activity mActivity;
+    private SettingsActivity mActivity;
     @Mock
     private DevicePolicyManager mDevicePolicyManager;
+    @Mock
+    private Preference mBatteryPreference;
+    @Mock
+    private BatterySipper mBatterySipper;
+    @Mock
+    private BatteryStatsHelper mBatteryStatsHelper;
+    @Mock
+    private BatteryStats.Uid mUid;
 
     private InstalledAppDetails mAppDetail;
+    private Context mShadowContext;
 
     @Before
     public void setUp() {
         MockitoAnnotations.initMocks(this);
-        mAppDetail = new InstalledAppDetails();
+        mShadowContext = RuntimeEnvironment.application;
+
+        mAppDetail = spy(new InstalledAppDetails());
+
+        mBatterySipper.drainType = BatterySipper.DrainType.IDLE;
+        mBatterySipper.uidObj = mUid;
+        doReturn(mActivity).when(mAppDetail).getActivity();
+        doReturn(mShadowContext).when(mAppDetail).getContext();
 
         // Default to not considering any apps to be instant (individual tests can override this).
         ReflectionHelpers.setStaticField(AppUtils.class, "sInstantAppDataProvider",
@@ -154,6 +175,16 @@ public final class InstalledAppDetailsTest {
         verify(mActivity, never()).finishAndRemoveTask();
     }
 
+    @Test
+    public void launchPowerUsageDetailFragment_shouldNotCrash() {
+        mAppDetail.mBatteryPreference = mBatteryPreference;
+        mAppDetail.mSipper = mBatterySipper;
+        mAppDetail.mBatteryHelper = mBatteryStatsHelper;
+
+        // Should not crash
+        mAppDetail.onPreferenceClick(mBatteryPreference);
+    }
+
     // Tests that we don't show the "uninstall for all users" button for instant apps.
     @Test
     public void instantApps_noUninstallForAllButton() {
@@ -181,7 +212,7 @@ public final class InstalledAppDetailsTest {
     public void instantApps_noUninstallButton() {
         // Make this app appear to be instant.
         ReflectionHelpers.setStaticField(AppUtils.class, "sInstantAppDataProvider",
-                                         (InstantAppDataProvider) (i -> true));
+                (InstantAppDataProvider) (i -> true));
         final ApplicationInfo info = new ApplicationInfo();
         info.flags = ApplicationInfo.FLAG_INSTALLED;
         info.enabled = true;