Merge changes from topics "anomaly_test_app_step_6", "anomaly_test_app_step_5" into oc-mr1-dev

* changes:
  Add functional test for wakelock anomaly detector
  Add functional test for bt anomaly detector
diff --git a/res/layout-sw320dp/settings_entity_header.xml b/res/layout-sw320dp/settings_entity_header.xml
index 5cedd8d..951961c 100644
--- a/res/layout-sw320dp/settings_entity_header.xml
+++ b/res/layout-sw320dp/settings_entity_header.xml
@@ -38,7 +38,7 @@
             android:id="@+id/entity_header_icon"
             android:layout_width="48dp"
             android:layout_height="48dp"
-            android:scaleType="fitXY"
+            android:scaleType="fitCenter"
             android:layout_gravity="center_horizontal"
             android:antialias="true" />
 
diff --git a/res/xml/development_prefs.xml b/res/xml/development_prefs.xml
index 8992446..1846a8c 100644
--- a/res/xml/development_prefs.xml
+++ b/res/xml/development_prefs.xml
@@ -210,6 +210,11 @@
             android:entryValues="@array/usb_configuration_values" />
 
         <SwitchPreference
+            android:key="bluetooth_show_devices_without_names"
+            android:title="@string/bluetooth_show_devices_without_names"
+            android:summary="@string/bluetooth_show_devices_without_names_summary"/>
+
+        <SwitchPreference
             android:key="bluetooth_disable_absolute_volume"
             android:title="@string/bluetooth_disable_absolute_volume"
             android:summary="@string/bluetooth_disable_absolute_volume_summary"/>
diff --git a/src/com/android/settings/bluetooth/BluetoothDetailsHeaderController.java b/src/com/android/settings/bluetooth/BluetoothDetailsHeaderController.java
index 5ec7c85..1470214 100644
--- a/src/com/android/settings/bluetooth/BluetoothDetailsHeaderController.java
+++ b/src/com/android/settings/bluetooth/BluetoothDetailsHeaderController.java
@@ -16,8 +16,8 @@
 
 package com.android.settings.bluetooth;
 
-
 import android.content.Context;
+import android.graphics.drawable.Drawable;
 import android.support.v14.preference.PreferenceFragment;
 import android.support.v7.preference.PreferenceScreen;
 import android.util.Pair;
@@ -51,11 +51,11 @@
     }
 
     protected void setHeaderProperties() {
-        Pair<Integer, String> pair = Utils.getBtClassDrawableWithDescription
-                (mContext.getResources(), mCachedDevice);
+        final Pair<Drawable, String> pair = Utils.getBtClassDrawableWithDescription
+                (mContext, mCachedDevice);
         String summaryText = mCachedDevice.getConnectionSummary();
         mHeaderController.setLabel(mCachedDevice.getName());
-        mHeaderController.setIcon(mContext.getDrawable(pair.first));
+        mHeaderController.setIcon(pair.first);
         mHeaderController.setIconContentDescription(pair.second);
         mHeaderController.setSummary(summaryText);
     }
diff --git a/src/com/android/settings/bluetooth/BluetoothDevicePreference.java b/src/com/android/settings/bluetooth/BluetoothDevicePreference.java
index a216400..084b50e 100644
--- a/src/com/android/settings/bluetooth/BluetoothDevicePreference.java
+++ b/src/com/android/settings/bluetooth/BluetoothDevicePreference.java
@@ -21,6 +21,7 @@
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.res.Resources;
+import android.graphics.drawable.Drawable;
 import android.os.UserManager;
 import android.support.v7.preference.Preference;
 import android.support.v7.preference.PreferenceViewHolder;
@@ -53,16 +54,17 @@
     private final UserManager mUserManager;
 
     private AlertDialog mDisconnectDialog;
-
     private String contentDescription = null;
-
+    private DeviceListPreferenceFragment mDeviceListPreferenceFragment;
     /* Talk-back descriptions for various BT icons */
     Resources mResources;
 
-    public BluetoothDevicePreference(Context context, CachedBluetoothDevice cachedDevice) {
+    public BluetoothDevicePreference(Context context, CachedBluetoothDevice cachedDevice,
+            DeviceListPreferenceFragment deviceListPreferenceFragment) {
         super(context, null);
         mResources = getContext().getResources();
         mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
+        mDeviceListPreferenceFragment = deviceListPreferenceFragment;
 
         if (sDimAlpha == Integer.MIN_VALUE) {
             TypedValue outValue = new TypedValue();
@@ -120,9 +122,9 @@
         // Null check is done at the framework
         setSummary(mCachedDevice.getConnectionSummary());
 
-        Pair<Integer, String> pair = Utils.getBtClassDrawableWithDescription(mResources,
+        final Pair<Drawable, String> pair = Utils.getBtClassDrawableWithDescription(getContext(),
                 mCachedDevice);
-        if (pair.first != 0) {
+        if (pair.first != null) {
             setIcon(pair.first);
             contentDescription = pair.second;
         }
@@ -130,6 +132,11 @@
         // Used to gray out the item
         setEnabled(!mCachedDevice.isBusy());
 
+        // Device is only visible in the UI if it has a valid name besides MAC address or when user
+        // allows showing devices without user-friendly name in developer settings
+        setVisible(mDeviceListPreferenceFragment.shouldShowDevicesWithoutNames()
+                || mCachedDevice.hasHumanReadableName());
+
         // This could affect ordering, so notify that
         notifyHierarchyChanged();
     }
diff --git a/src/com/android/settings/bluetooth/BluetoothSettings.java b/src/com/android/settings/bluetooth/BluetoothSettings.java
index bd86c4b..361bc2f 100644
--- a/src/com/android/settings/bluetooth/BluetoothSettings.java
+++ b/src/com/android/settings/bluetooth/BluetoothSettings.java
@@ -140,6 +140,8 @@
             mBluetoothEnabler.resume(getActivity());
         }
         super.onStart();
+        // Always show paired devices regardless whether user-friendly name exists
+        mShowDevicesWithoutNames = true;
         if (isUiRestricted()) {
             getPreferenceScreen().removeAll();
             if (!isUiRestrictedByOnlyAdmin()) {
diff --git a/src/com/android/settings/bluetooth/DeviceListPreferenceFragment.java b/src/com/android/settings/bluetooth/DeviceListPreferenceFragment.java
index ca06e3c..0485e69 100644
--- a/src/com/android/settings/bluetooth/DeviceListPreferenceFragment.java
+++ b/src/com/android/settings/bluetooth/DeviceListPreferenceFragment.java
@@ -19,6 +19,7 @@
 import android.bluetooth.BluetoothAdapter;
 import android.bluetooth.BluetoothDevice;
 import android.os.Bundle;
+import android.os.SystemProperties;
 import android.support.annotation.VisibleForTesting;
 import android.support.v7.preference.Preference;
 import android.support.v7.preference.PreferenceCategory;
@@ -52,6 +53,10 @@
 
     private static final String KEY_BT_SCAN = "bt_scan";
 
+    // Copied from DevelopmentSettings.java
+    private static final String BLUETOOTH_SHOW_DEVICES_WITHOUT_NAMES_PROPERTY =
+            "persist.bluetooth.showdeviceswithoutnames";
+
     private BluetoothDeviceFilter.Filter mFilter;
 
     @VisibleForTesting
@@ -68,6 +73,8 @@
     final WeakHashMap<CachedBluetoothDevice, BluetoothDevicePreference> mDevicePreferenceMap =
             new WeakHashMap<CachedBluetoothDevice, BluetoothDevicePreference>();
 
+    boolean mShowDevicesWithoutNames;
+
     DeviceListPreferenceFragment(String restrictedKey) {
         super(restrictedKey);
         mFilter = BluetoothDeviceFilter.ALL_FILTER;
@@ -103,6 +110,8 @@
     @Override
     public void onStart() {
         super.onStart();
+        mShowDevicesWithoutNames = SystemProperties.getBoolean(
+                BLUETOOTH_SHOW_DEVICES_WITHOUT_NAMES_PROPERTY, false);
         if (mLocalManager == null || isUiRestricted()) return;
 
         mLocalManager.setForegroundActivity(getActivity());
@@ -181,7 +190,7 @@
         BluetoothDevicePreference preference = (BluetoothDevicePreference) getCachedPreference(key);
 
         if (preference == null) {
-            preference = new BluetoothDevicePreference(getPrefContext(), cachedDevice);
+            preference = new BluetoothDevicePreference(getPrefContext(), cachedDevice, this);
             preference.setKey(key);
             mDeviceListGroup.addPreference(preference);
         } else {
@@ -271,4 +280,8 @@
      * Return the key of the {@link PreferenceGroup} that contains the bluetooth devices
      */
     public abstract String getDeviceListKey();
+
+    public boolean shouldShowDevicesWithoutNames() {
+        return mShowDevicesWithoutNames;
+    }
 }
diff --git a/src/com/android/settings/bluetooth/Utils.java b/src/com/android/settings/bluetooth/Utils.java
index 26edd84..e80237eb 100755
--- a/src/com/android/settings/bluetooth/Utils.java
+++ b/src/com/android/settings/bluetooth/Utils.java
@@ -23,6 +23,9 @@
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.res.Resources;
+import android.graphics.drawable.Drawable;
+import android.support.annotation.DrawableRes;
+import android.support.annotation.IdRes;
 import android.support.annotation.VisibleForTesting;
 import android.util.Pair;
 import android.widget.Toast;
@@ -36,6 +39,7 @@
 import com.android.settingslib.bluetooth.LocalBluetoothManager.BluetoothManagerCallback;
 import com.android.settingslib.bluetooth.LocalBluetoothProfile;
 import com.android.settingslib.bluetooth.Utils.ErrorListener;
+import com.android.settingslib.graph.BluetoothDeviceLayerDrawable;
 
 import java.util.List;
 
@@ -150,27 +154,31 @@
         }
     };
 
-    static Pair<Integer, String> getBtClassDrawableWithDescription(Resources r,
+    static Pair<Drawable, String> getBtClassDrawableWithDescription(Context context,
             CachedBluetoothDevice cachedDevice) {
         BluetoothClass btClass = cachedDevice.getBtClass();
+        final int level = cachedDevice.getBatteryLevel();
         if (btClass != null) {
             switch (btClass.getMajorDeviceClass()) {
                 case BluetoothClass.Device.Major.COMPUTER:
-                    return new Pair<Integer, String>(R.drawable.ic_bt_laptop,
-                           r.getString(R.string.bluetooth_talkback_computer));
+                    return new Pair<>(getBluetoothDrawable(context, R.drawable.ic_bt_laptop, level),
+                            context.getString(R.string.bluetooth_talkback_computer));
 
                 case BluetoothClass.Device.Major.PHONE:
-                    return new Pair<Integer, String>(R.drawable.ic_bt_cellphone,
-                            r.getString(R.string.bluetooth_talkback_phone));
+                    return new Pair<>(
+                            getBluetoothDrawable(context, R.drawable.ic_bt_cellphone, level),
+                            context.getString(R.string.bluetooth_talkback_phone));
 
                 case BluetoothClass.Device.Major.PERIPHERAL:
-                    return new Pair<Integer, String>(HidProfile.getHidClassDrawable(btClass),
-                            r.getString(
-                                    R.string.bluetooth_talkback_input_peripheral));
+                    return new Pair<>(
+                            getBluetoothDrawable(context, HidProfile.getHidClassDrawable(btClass),
+                                    level),
+                            context.getString(R.string.bluetooth_talkback_input_peripheral));
 
                 case BluetoothClass.Device.Major.IMAGING:
-                    return new Pair<Integer, String>(R.drawable.ic_settings_print,
-                            r.getString(R.string.bluetooth_talkback_imaging));
+                    return new Pair<>(
+                            getBluetoothDrawable(context, R.drawable.ic_settings_print, level),
+                            context.getString(R.string.bluetooth_talkback_imaging));
 
                 default:
                     // unrecognized device class; continue
@@ -181,20 +189,34 @@
         for (LocalBluetoothProfile profile : profiles) {
             int resId = profile.getDrawableResource(btClass);
             if (resId != 0) {
-                return new Pair<Integer, String>(resId, null);
+                return new Pair<>(getBluetoothDrawable(context, resId, level), null);
             }
         }
         if (btClass != null) {
             if (btClass.doesClassMatch(BluetoothClass.PROFILE_HEADSET)) {
-                return new Pair<Integer, String>(R.drawable.ic_bt_headset_hfp,
-                        r.getString(R.string.bluetooth_talkback_headset));
+                return new Pair<>(
+                        getBluetoothDrawable(context, R.drawable.ic_bt_headset_hfp, level),
+                        context.getString(R.string.bluetooth_talkback_headset));
             }
             if (btClass.doesClassMatch(BluetoothClass.PROFILE_A2DP)) {
-                return new Pair<Integer, String>(R.drawable.ic_bt_headphones_a2dp,
-                        r.getString(R.string.bluetooth_talkback_headphone));
+                return new Pair<>(
+                        getBluetoothDrawable(context, R.drawable.ic_bt_headphones_a2dp, level),
+                        context.getString(R.string.bluetooth_talkback_headphone));
             }
         }
-        return new Pair<Integer, String>(R.drawable.ic_settings_bluetooth,
-                r.getString(R.string.bluetooth_talkback_bluetooth));
+        return new Pair<>(getBluetoothDrawable(context, R.drawable.ic_settings_bluetooth, level),
+                context.getString(R.string.bluetooth_talkback_bluetooth));
+    }
+
+    @VisibleForTesting
+    static Drawable getBluetoothDrawable(Context context, @DrawableRes int resId,
+            int batteryLevel) {
+        if (batteryLevel != BluetoothDevice.BATTERY_LEVEL_UNKNOWN) {
+            return BluetoothDeviceLayerDrawable.createLayerDrawable(context, resId, batteryLevel);
+        } else if (resId != 0) {
+            return context.getDrawable(resId);
+        } else {
+            return null;
+        }
     }
 }
diff --git a/src/com/android/settings/dashboard/DashboardSummary.java b/src/com/android/settings/dashboard/DashboardSummary.java
index fba27fb..be5fbdf 100644
--- a/src/com/android/settings/dashboard/DashboardSummary.java
+++ b/src/com/android/settings/dashboard/DashboardSummary.java
@@ -75,6 +75,7 @@
     private DashboardFeatureProvider mDashboardFeatureProvider;
     private SuggestionFeatureProvider mSuggestionFeatureProvider;
     private boolean isOnCategoriesChangedCalled;
+    private boolean mOnConditionsChangedCalled;
 
     @Override
     public int getMetricsCategory() {
@@ -237,10 +238,21 @@
     @Override
     public void onConditionsChanged() {
         Log.d(TAG, "onConditionsChanged");
-        final boolean scrollToTop = mLayoutManager.findFirstCompletelyVisibleItemPosition() <= 1;
-        mAdapter.setConditions(mConditionManager.getConditions());
-        if (scrollToTop) {
-            mDashboard.scrollToPosition(0);
+        // Bypass refreshing the conditions on the first call of onConditionsChanged.
+        // onConditionsChanged is called immediately everytime we start listening to the conditions
+        // change when we gain window focus. Since the conditions are passed to the adapter's
+        // constructor when we create the view, the first handling is not necessary.
+        // But, on the subsequent calls we need to handle it because there might be real changes to
+        // conditions.
+        if (mOnConditionsChangedCalled) {
+            final boolean scrollToTop =
+                    mLayoutManager.findFirstCompletelyVisibleItemPosition() <= 1;
+            mAdapter.setConditions(mConditionManager.getConditions());
+            if (scrollToTop) {
+                mDashboard.scrollToPosition(0);
+            }
+        } else {
+            mOnConditionsChangedCalled = true;
         }
     }
 
diff --git a/src/com/android/settings/development/DevelopmentSettings.java b/src/com/android/settings/development/DevelopmentSettings.java
index b442449..ce8acc2 100644
--- a/src/com/android/settings/development/DevelopmentSettings.java
+++ b/src/com/android/settings/development/DevelopmentSettings.java
@@ -199,6 +199,10 @@
     private static final String FORCE_RESIZABLE_KEY = "force_resizable_activities";
     private static final String COLOR_TEMPERATURE_KEY = "color_temperature";
 
+    private static final String BLUETOOTH_SHOW_DEVICES_WITHOUT_NAMES_KEY =
+            "bluetooth_show_devices_without_names";
+    private static final String BLUETOOTH_SHOW_DEVICES_WITHOUT_NAMES_PROPERTY =
+            "persist.bluetooth.showdeviceswithoutnames";
     private static final String BLUETOOTH_DISABLE_ABSOLUTE_VOLUME_KEY =
             "bluetooth_disable_absolute_volume";
     private static final String BLUETOOTH_DISABLE_ABSOLUTE_VOLUME_PROPERTY =
@@ -282,6 +286,7 @@
     private SwitchPreference mWifiAggressiveHandover;
     private SwitchPreference mMobileDataAlwaysOn;
     private SwitchPreference mTetheringHardwareOffload;
+    private SwitchPreference mBluetoothShowDevicesWithoutNames;
     private SwitchPreference mBluetoothDisableAbsVolume;
     private SwitchPreference mBluetoothEnableInbandRinging;
 
@@ -498,6 +503,8 @@
             mLogpersist = null;
         }
         mUsbConfiguration = addListPreference(USB_CONFIGURATION_KEY);
+        mBluetoothShowDevicesWithoutNames =
+                findAndInitSwitchPref(BLUETOOTH_SHOW_DEVICES_WITHOUT_NAMES_KEY);
         mBluetoothDisableAbsVolume = findAndInitSwitchPref(BLUETOOTH_DISABLE_ABSOLUTE_VOLUME_KEY);
         mBluetoothEnableInbandRinging = findAndInitSwitchPref(BLUETOOTH_ENABLE_INBAND_RINGING_KEY);
         if (!BluetoothHeadset.isInbandRingingSupported(getContext())) {
@@ -838,6 +845,7 @@
         if (mColorTemperaturePreference != null) {
             updateColorTemperature();
         }
+        updateBluetoothShowDevicesWithoutUserFriendlyNameOptions();
         updateBluetoothDisableAbsVolumeOptions();
         updateBluetoothEnableInbandRingingOptions();
         updateBluetoothA2dpConfigurationValues();
@@ -1468,6 +1476,17 @@
         mWifiManager.setAllowScansWithTraffic(mWifiAllowScansWithTraffic.isChecked() ? 1 : 0);
     }
 
+    private void updateBluetoothShowDevicesWithoutUserFriendlyNameOptions() {
+        updateSwitchPreference(mBluetoothShowDevicesWithoutNames,
+                SystemProperties.getBoolean(
+                        BLUETOOTH_SHOW_DEVICES_WITHOUT_NAMES_PROPERTY, false));
+    }
+
+    private void writeBluetoothShowDevicesWithoutUserFriendlyNameOptions() {
+        SystemProperties.set(BLUETOOTH_SHOW_DEVICES_WITHOUT_NAMES_PROPERTY,
+                mBluetoothShowDevicesWithoutNames.isChecked() ? "true" : "false");
+    }
+
     private void updateBluetoothDisableAbsVolumeOptions() {
         updateSwitchPreference(mBluetoothDisableAbsVolume,
                 SystemProperties.getBoolean(BLUETOOTH_DISABLE_ABSOLUTE_VOLUME_PROPERTY, false));
@@ -2532,6 +2551,8 @@
             writeUSBAudioOptions();
         } else if (preference == mForceResizable) {
             writeForceResizableOptions();
+        } else if (preference == mBluetoothShowDevicesWithoutNames) {
+            writeBluetoothShowDevicesWithoutUserFriendlyNameOptions();
         } else if (preference == mBluetoothDisableAbsVolume) {
             writeBluetoothDisableAbsVolumeOptions();
         } else if (preference == mBluetoothEnableInbandRinging) {
diff --git a/src/com/android/settings/deviceinfo/StorageDashboardFragment.java b/src/com/android/settings/deviceinfo/StorageDashboardFragment.java
index be72539..33d7d36 100644
--- a/src/com/android/settings/deviceinfo/StorageDashboardFragment.java
+++ b/src/com/android/settings/deviceinfo/StorageDashboardFragment.java
@@ -109,8 +109,9 @@
     public void onResume() {
         super.onResume();
         getLoaderManager().restartLoader(STORAGE_JOB_ID, Bundle.EMPTY, this);
+        getLoaderManager()
+                .restartLoader(VOLUME_SIZE_JOB_ID, Bundle.EMPTY, new VolumeSizeCallbacks());
         getLoaderManager().initLoader(ICON_JOB_ID, Bundle.EMPTY, new IconLoaderCallbacks());
-        getLoaderManager().initLoader(VOLUME_SIZE_JOB_ID, Bundle.EMPTY, new VolumeSizeCallbacks());
     }
 
     @Override
diff --git a/src/com/android/settings/wifi/WifiSettings.java b/src/com/android/settings/wifi/WifiSettings.java
index f0457e6..89e5b74 100644
--- a/src/com/android/settings/wifi/WifiSettings.java
+++ b/src/com/android/settings/wifi/WifiSettings.java
@@ -176,6 +176,12 @@
     // For Search
     private static final String DATA_KEY_REFERENCE = "main_toggle_wifi";
 
+    /**
+     * Tracks whether the user initiated a connection via clicking in order to autoscroll to the
+     * network once connected.
+     */
+    private boolean mClickedConnect;
+
     /* End of "used in Wifi Setup context" */
 
     public WifiSettings() {
@@ -894,6 +900,10 @@
 
         mConnectedAccessPointPreferenceCategory.addPreference(pref);
         mConnectedAccessPointPreferenceCategory.setVisible(true);
+        if (mClickedConnect) {
+            mClickedConnect = false;
+            scrollToPreference(mConnectedAccessPointPreferenceCategory);
+        }
     }
 
     /** Removes all preferences and hide the {@link #mConnectedAccessPointPreferenceCategory}. */
@@ -1039,7 +1049,7 @@
         mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT,
                 isSavedNetwork);
         mWifiManager.connect(config, mConnectListener);
-        scrollToPreference(mConnectedAccessPointPreferenceCategory);
+        mClickedConnect = true;
     }
 
     protected void connect(final int networkId, boolean isSavedNetwork) {
diff --git a/tests/robotests/src/com/android/settings/bluetooth/BluetoothDetailsHeaderControllerTest.java b/tests/robotests/src/com/android/settings/bluetooth/BluetoothDetailsHeaderControllerTest.java
index 27c1a83..98a3580 100644
--- a/tests/robotests/src/com/android/settings/bluetooth/BluetoothDetailsHeaderControllerTest.java
+++ b/tests/robotests/src/com/android/settings/bluetooth/BluetoothDetailsHeaderControllerTest.java
@@ -32,6 +32,7 @@
 import com.android.settings.TestConfig;
 import com.android.settings.testutils.FakeFeatureFactory;
 import com.android.settings.testutils.shadow.SettingsShadowBluetoothDevice;
+import com.android.settings.testutils.shadow.SettingsShadowResources;
 import com.android.settings.testutils.shadow.ShadowEntityHeaderController;
 import com.android.settings.widget.EntityHeaderController;
 
@@ -45,7 +46,8 @@
 
 @RunWith(SettingsRobolectricTestRunner.class)
 @Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION,
-        shadows={SettingsShadowBluetoothDevice.class, ShadowEntityHeaderController.class})
+        shadows={SettingsShadowBluetoothDevice.class, ShadowEntityHeaderController.class,
+                SettingsShadowResources.class})
 public class BluetoothDetailsHeaderControllerTest extends BluetoothDetailsControllerTestBase {
     private BluetoothDetailsHeaderController mController;
     private LayoutPreference mPreference;
diff --git a/tests/robotests/src/com/android/settings/bluetooth/BluetoothDevicePreferenceTest.java b/tests/robotests/src/com/android/settings/bluetooth/BluetoothDevicePreferenceTest.java
index d60571c..a1db5de 100644
--- a/tests/robotests/src/com/android/settings/bluetooth/BluetoothDevicePreferenceTest.java
+++ b/tests/robotests/src/com/android/settings/bluetooth/BluetoothDevicePreferenceTest.java
@@ -26,6 +26,7 @@
 import com.android.settings.TestConfig;
 import com.android.settings.core.instrumentation.MetricsFeatureProvider;
 import com.android.settings.testutils.FakeFeatureFactory;
+import com.android.settings.testutils.shadow.SettingsShadowResources;
 import com.android.settingslib.bluetooth.CachedBluetoothDevice;
 
 import org.junit.Before;
@@ -38,18 +39,23 @@
 import org.robolectric.util.ReflectionHelpers;
 
 import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.doAnswer;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
 @RunWith(SettingsRobolectricTestRunner.class)
-@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION,
+        shadows = SettingsShadowResources.class)
 public class BluetoothDevicePreferenceTest {
 
     private Context mContext;
     @Mock
     private CachedBluetoothDevice mCachedBluetoothDevice;
+    @Mock
+    private DeviceListPreferenceFragment mDeviceListPreferenceFragment;
 
     private FakeFeatureFactory mFakeFeatureFactory;
     private MetricsFeatureProvider mMetricsFeatureProvider;
@@ -62,7 +68,8 @@
         FakeFeatureFactory.setupForTest(mContext);
         mFakeFeatureFactory = (FakeFeatureFactory) FakeFeatureFactory.getFactory(mContext);
         mMetricsFeatureProvider = mFakeFeatureFactory.getMetricsFeatureProvider();
-        mPreference = new BluetoothDevicePreference(mContext, mCachedBluetoothDevice);
+        mPreference = new BluetoothDevicePreference(mContext, mCachedBluetoothDevice,
+                mDeviceListPreferenceFragment);
     }
 
     @Test
@@ -140,10 +147,58 @@
 
     @Test
     public void imagingDeviceIcon_isICSettingsPrint() {
+        when(mCachedBluetoothDevice.getBatteryLevel()).thenReturn(
+                BluetoothDevice.BATTERY_LEVEL_UNKNOWN);
         when(mCachedBluetoothDevice.getBtClass()).thenReturn(
                 new BluetoothClass(BluetoothClass.Device.Major.IMAGING));
+
         mPreference.onDeviceAttributesChanged();
         assertThat(mPreference.getIcon()).isEqualTo(
                 mContext.getDrawable(R.drawable.ic_settings_print));
     }
+
+    @Test
+    public void testVisible_notVisibleThenVisible() {
+        when(mDeviceListPreferenceFragment.shouldShowDevicesWithoutNames()).thenReturn(false);
+        final boolean[] humanReadableName = {false};
+        doAnswer(invocation -> humanReadableName[0]).when(mCachedBluetoothDevice)
+                .hasHumanReadableName();
+        BluetoothDevicePreference preference =
+                new BluetoothDevicePreference(mContext, mCachedBluetoothDevice,
+                        mDeviceListPreferenceFragment);
+        assertThat(preference.isVisible()).isFalse();
+        humanReadableName[0] = true;
+        preference.onDeviceAttributesChanged();
+        assertThat(preference.isVisible()).isTrue();
+    }
+
+    @Test
+    public void testVisible_visibleThenNotVisible() {
+        when(mDeviceListPreferenceFragment.shouldShowDevicesWithoutNames()).thenReturn(false);
+        final boolean[] humanReadableName = {true};
+        doAnswer(invocation -> humanReadableName[0]).when(mCachedBluetoothDevice)
+                .hasHumanReadableName();
+        BluetoothDevicePreference preference =
+                new BluetoothDevicePreference(mContext, mCachedBluetoothDevice,
+                        mDeviceListPreferenceFragment);
+        assertThat(preference.isVisible()).isTrue();
+        humanReadableName[0] = false;
+        preference.onDeviceAttributesChanged();
+        assertThat(preference.isVisible()).isFalse();
+    }
+
+    @Test
+    public void testVisible_alwaysVisibleWhenEnabled() {
+        when(mDeviceListPreferenceFragment.shouldShowDevicesWithoutNames()).thenReturn(true);
+        final boolean[] humanReadableName = {true};
+        doAnswer(invocation -> humanReadableName[0]).when(mCachedBluetoothDevice)
+                .hasHumanReadableName();
+        BluetoothDevicePreference preference =
+                new BluetoothDevicePreference(mContext, mCachedBluetoothDevice,
+                        mDeviceListPreferenceFragment);
+        assertThat(preference.isVisible()).isTrue();
+        humanReadableName[0] = false;
+        preference.onDeviceAttributesChanged();
+        assertThat(preference.isVisible()).isTrue();
+    }
 }
diff --git a/tests/robotests/src/com/android/settings/bluetooth/UtilsTest.java b/tests/robotests/src/com/android/settings/bluetooth/UtilsTest.java
index 4667dac..7654921 100644
--- a/tests/robotests/src/com/android/settings/bluetooth/UtilsTest.java
+++ b/tests/robotests/src/com/android/settings/bluetooth/UtilsTest.java
@@ -15,14 +15,21 @@
  */
 package com.android.settings.bluetooth;
 
+import static com.google.common.truth.Truth.assertThat;
+
+import android.bluetooth.BluetoothDevice;
 import android.content.Context;
+import android.graphics.drawable.Drawable;
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
+import com.android.settings.R;
 import com.android.settings.testutils.SettingsRobolectricTestRunner;
 import com.android.settings.TestConfig;
 import com.android.settings.core.instrumentation.MetricsFeatureProvider;
 import com.android.settings.testutils.FakeFeatureFactory;
+import com.android.settings.testutils.shadow.SettingsShadowResources;
 import com.android.settingslib.bluetooth.LocalBluetoothManager;
+import com.android.settingslib.graph.BluetoothDeviceLayerDrawable;
 
 import org.junit.Before;
 import org.junit.Test;
@@ -30,6 +37,7 @@
 import org.mockito.Answers;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
+import org.robolectric.RuntimeEnvironment;
 import org.robolectric.annotation.Config;
 
 import static org.mockito.Matchers.anyInt;
@@ -40,7 +48,8 @@
 import static org.mockito.Mockito.when;
 
 @RunWith(SettingsRobolectricTestRunner.class)
-@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION,
+        shadows = SettingsShadowResources.class)
 public class UtilsTest {
 
     @Mock(answer = Answers.RETURNS_DEEP_STUBS)
@@ -60,11 +69,27 @@
     }
 
     @Test
-    public void showConnectingError_shouldLogBluetoothConnectError() {
+    public void testShowConnectingError_shouldLogBluetoothConnectError() {
         when(mContext.getString(anyInt(), anyString())).thenReturn("testMessage");
         Utils.showConnectingError(mContext, "testName", mock(LocalBluetoothManager.class));
 
         verify(mMetricsFeatureProvider).visible(eq(mContext), anyInt(),
-            eq(MetricsEvent.ACTION_SETTINGS_BLUETOOTH_CONNECT_ERROR));
+                eq(MetricsEvent.ACTION_SETTINGS_BLUETOOTH_CONNECT_ERROR));
+    }
+
+    @Test
+    public void testGetBluetoothDrawable_noBatteryLevel_returnSimpleDrawable() {
+        final Drawable drawable = Utils.getBluetoothDrawable(RuntimeEnvironment.application,
+                R.drawable.ic_bt_laptop, BluetoothDevice.BATTERY_LEVEL_UNKNOWN);
+
+        assertThat(drawable).isNotInstanceOf(BluetoothDeviceLayerDrawable.class);
+    }
+
+    @Test
+    public void testGetBluetoothDrawable_hasBatteryLevel_returnLayerDrawable() {
+        final Drawable drawable = Utils.getBluetoothDrawable(RuntimeEnvironment.application,
+                R.drawable.ic_bt_laptop, 10 /* batteryLevel */);
+
+        assertThat(drawable).isInstanceOf(BluetoothDeviceLayerDrawable.class);
     }
 }
diff --git a/tests/robotests/src/com/android/settings/dashboard/DashboardSummaryTest.java b/tests/robotests/src/com/android/settings/dashboard/DashboardSummaryTest.java
index 967ed24..f3ed57c 100644
--- a/tests/robotests/src/com/android/settings/dashboard/DashboardSummaryTest.java
+++ b/tests/robotests/src/com/android/settings/dashboard/DashboardSummaryTest.java
@@ -36,6 +36,7 @@
 import org.robolectric.util.ReflectionHelpers;
 
 import static org.mockito.ArgumentMatchers.nullable;
+import static org.mockito.Mockito.any;
 import static org.mockito.Mockito.doNothing;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
@@ -90,6 +91,7 @@
     public void onConditionChanged_PositionAtTop_ScrollToTop() {
         when(mLayoutManager.findFirstCompletelyVisibleItemPosition()).thenReturn(1);
         mSummary.onConditionsChanged();
+        mSummary.onConditionsChanged();
         verify(mDashboard).scrollToPosition(0);
     }
 
@@ -97,10 +99,24 @@
     public void onConditionChanged_PositionNotTop_RemainPosition() {
         when(mLayoutManager.findFirstCompletelyVisibleItemPosition()).thenReturn(2);
         mSummary.onConditionsChanged();
+        mSummary.onConditionsChanged();
         verify(mDashboard, never()).scrollToPosition(0);
     }
 
     @Test
+    public void onConditionChanged_firstCall_shouldIgnore() {
+        mSummary.onConditionsChanged();
+        verify(mAdapter, never()).setConditions(any());
+    }
+
+    @Test
+    public void onConditionChanged_secondCall_shouldSetConditionsOnAdapter() {
+        mSummary.onConditionsChanged();
+        mSummary.onConditionsChanged();
+        verify(mAdapter).setConditions(any());
+    }
+
+    @Test
     public void onCategoryChanged_noRebuildOnFirstCall() {
         doReturn(mock(Activity.class)).when(mSummary).getActivity();
         doNothing().when(mSummary).rebuildUI();