Merge "Add SIM color picker" into qt-dev
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index f4ff282..fc3888b 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -102,8 +102,6 @@
     <uses-permission android:name="android.permission.CAMERA" />
     <uses-permission android:name="android.permission.MEDIA_CONTENT_CONTROL" />
 
-    <protected-broadcast android:name="com.android.settings.DELETE_SIM_PROFILE_RESULT"/>
-
     <application android:label="@string/settings_label"
             android:icon="@drawable/ic_launcher_settings"
             android:theme="@style/Theme.Settings"
diff --git a/res/layout-land/confirm_lock_pattern.xml b/res/layout-land/confirm_lock_pattern.xml
index 20a7bfc..6ca9be4 100644
--- a/res/layout-land/confirm_lock_pattern.xml
+++ b/res/layout-land/confirm_lock_pattern.xml
@@ -87,11 +87,9 @@
 
                 <com.android.internal.widget.LockPatternView
                     android:id="@+id/lockPattern"
-                    android:layout_width="288dp"
-                    android:layout_height="288dp"
-                    android:layout_marginStart="-42dp"
-                    android:layout_marginEnd="-42dp"
-                    android:layout_gravity="center_vertical"/>
+                    android:layout_width="match_parent"
+                    android:layout_height="match_parent"
+                    android:layout_gravity="center"/>
 
                 <TextView
                     style="@style/TextAppearance.ErrorText"
diff --git a/res/layout/notif_importance_preference.xml b/res/layout/notif_importance_preference.xml
index 2fc2740..395e049 100644
--- a/res/layout/notif_importance_preference.xml
+++ b/res/layout/notif_importance_preference.xml
@@ -24,7 +24,7 @@
     android:padding="@dimen/notification_importance_toggle_marginTop"
     android:orientation="vertical">
 
-    <RelativeLayout
+    <com.android.settings.notification.NotificationButtonRelativeLayout
         android:id="@+id/alert"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
@@ -65,7 +65,7 @@
             android:layout_below="@id/alert_icon"
             android:textAppearance="@style/TextAppearance.NotificationImportanceDetail"
             android:visibility="gone" />
-    </RelativeLayout>
+    </com.android.settings.notification.NotificationButtonRelativeLayout>
 
     <RelativeLayout
         android:id="@+id/silence"
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 2eb3be8..3cd63a7 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -8104,7 +8104,7 @@
     <string name="notification_silence_title">Silent</string>
 
     <!-- [CHAR LIMIT=100] Notification Importance title -->
-    <string name="notification_alert_title">Prioritized</string>
+    <string name="notification_alert_title">Alerting</string>
 
     <!-- [CHAR LIMIT=40] Notification importance title. This setting controls how notifications in older apps may alert the user (eg, sound, visual, vibrate). -->
     <string name="allow_interruption">Allow interruptions</string>
diff --git a/src/com/android/settings/FallbackHome.java b/src/com/android/settings/FallbackHome.java
index 59347ad..e3944a6 100644
--- a/src/com/android/settings/FallbackHome.java
+++ b/src/com/android/settings/FallbackHome.java
@@ -25,6 +25,7 @@
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.pm.ResolveInfo;
+import android.os.AsyncTask;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
@@ -65,7 +66,7 @@
         @Override
         public void onColorsChanged(WallpaperColors colors, int which) {
             if (colors != null) {
-                View decorView = getWindow().getDecorView();
+                final View decorView = getWindow().getDecorView();
                 decorView.setSystemUiVisibility(
                         updateVisibilityFlagsFromColors(colors, decorView.getSystemUiVisibility()));
                 mWallManager.removeOnColorsChangedListener(this);
@@ -81,7 +82,7 @@
         // we don't flash the wallpaper before SUW
         mProvisioned = Settings.Global.getInt(getContentResolver(),
                 Settings.Global.DEVICE_PROVISIONED, 0) != 0;
-        int flags;
+        final int flags;
         if (!mProvisioned) {
             setTheme(R.style.FallbackHome_SetupWizard);
             flags = View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
@@ -91,18 +92,11 @@
                     | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION;
         }
 
-        // Set the system ui flags to light status bar if the wallpaper supports dark text to match
-        // current system ui color tints. Use a listener to wait for colors if not ready yet.
         mWallManager = getSystemService(WallpaperManager.class);
         if (mWallManager == null) {
             Log.w(TAG, "Wallpaper manager isn't ready, can't listen to color changes!");
         } else {
-            WallpaperColors colors = mWallManager.getWallpaperColors(WallpaperManager.FLAG_SYSTEM);
-            if (colors == null) {
-                mWallManager.addOnColorsChangedListener(mColorsChangedListener, null /* handler */);
-            } else {
-                flags = updateVisibilityFlagsFromColors(colors, flags);
-            }
+            loadWallpaperColors(flags);
         }
         getWindow().getDecorView().setSystemUiVisibility(flags);
 
@@ -139,6 +133,33 @@
         }
     };
 
+    private void loadWallpaperColors(int flags) {
+        final AsyncTask loadWallpaperColorsTask = new AsyncTask<Object, Void, Integer>() {
+            @Override
+            protected Integer doInBackground(Object... params) {
+                final WallpaperColors colors =
+                        mWallManager.getWallpaperColors(WallpaperManager.FLAG_SYSTEM);
+
+                // Use a listener to wait for colors if not ready yet.
+                if (colors == null) {
+                    mWallManager.addOnColorsChangedListener(mColorsChangedListener,
+                            null /* handler */);
+                    return null;
+                }
+                return updateVisibilityFlagsFromColors(colors, flags);
+            }
+
+            @Override
+            protected void onPostExecute(Integer flagsToUpdate) {
+                if (flagsToUpdate == null) {
+                    return;
+                }
+                getWindow().getDecorView().setSystemUiVisibility(flagsToUpdate);
+            }
+        };
+        loadWallpaperColorsTask.execute();
+    }
+
     private void maybeFinish() {
         if (getSystemService(UserManager.class).isUserUnlocked()) {
             final Intent homeIntent = new Intent(Intent.ACTION_MAIN)
@@ -162,6 +183,8 @@
         }
     }
 
+    // Set the system ui flags to light status bar if the wallpaper supports dark text to match
+    // current system ui color tints.
     private int updateVisibilityFlagsFromColors(WallpaperColors colors, int flags) {
         if ((colors.getColorHints() & WallpaperColors.HINT_SUPPORTS_DARK_TEXT) != 0) {
             return flags | View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR
diff --git a/src/com/android/settings/network/MobileNetworkListFragment.java b/src/com/android/settings/network/MobileNetworkListFragment.java
index c90827e..4690a28 100644
--- a/src/com/android/settings/network/MobileNetworkListFragment.java
+++ b/src/com/android/settings/network/MobileNetworkListFragment.java
@@ -18,6 +18,7 @@
 
 import android.app.settings.SettingsEnums;
 import android.content.Context;
+import android.os.UserManager;
 import android.provider.SearchIndexableResource;
 
 import com.android.settings.R;
@@ -66,5 +67,10 @@
                     result.add(sir);
                     return result;
                 }
+
+                @Override
+                protected boolean isPageSearchEnabled(Context context) {
+                    return context.getSystemService(UserManager.class).isAdminUser();
+                }
             };
 }
diff --git a/src/com/android/settings/network/telephony/DeleteSimProfileConfirmationDialog.java b/src/com/android/settings/network/telephony/DeleteSimProfileConfirmationDialog.java
deleted file mode 100644
index 13bfa92..0000000
--- a/src/com/android/settings/network/telephony/DeleteSimProfileConfirmationDialog.java
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * Copyright (C) 2019 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.network.telephony;
-
-import android.app.Dialog;
-import android.app.settings.SettingsEnums;
-import android.content.Context;
-import android.content.DialogInterface;
-import android.os.Bundle;
-import android.telephony.SubscriptionInfo;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.annotation.VisibleForTesting;
-import androidx.appcompat.app.AlertDialog;
-
-import com.android.settings.R;
-import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
-
-public class DeleteSimProfileConfirmationDialog extends InstrumentedDialogFragment implements
-        DialogInterface.OnClickListener {
-    public static final String TAG = "confirm_delete_sim";
-    public static final String KEY_SUBSCRIPTION_INFO = "subscription_info";
-    private SubscriptionInfo mInfo;
-
-    public static DeleteSimProfileConfirmationDialog newInstance(SubscriptionInfo info) {
-        final DeleteSimProfileConfirmationDialog dialog =
-                new DeleteSimProfileConfirmationDialog();
-        final Bundle args = new Bundle();
-        args.putParcelable(KEY_SUBSCRIPTION_INFO, info);
-        dialog.setArguments(args);
-        return dialog;
-    }
-
-    @NonNull
-    @Override
-    public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
-        mInfo = getArguments().getParcelable(KEY_SUBSCRIPTION_INFO);
-        Context context = getContext();
-        final String message = context.getString(R.string.mobile_network_erase_sim_dialog_body,
-                mInfo.getCarrierName(), mInfo.getCarrierName());
-        return new AlertDialog.Builder(context)
-                .setTitle(R.string.mobile_network_erase_sim_dialog_title)
-                .setMessage(message)
-                .setNegativeButton(R.string.cancel, null)
-                .setPositiveButton(R.string.mobile_network_erase_sim_dialog_ok, this)
-                .create();
-    }
-
-    @Override
-    public void onClick(DialogInterface dialog, int which) {
-        if (which == DialogInterface.BUTTON_POSITIVE) {
-            beginDeletionWithProgress();
-        }
-    }
-
-    @VisibleForTesting
-    void beginDeletionWithProgress() {
-        final DeleteSimProfileProgressDialog progress =
-                DeleteSimProfileProgressDialog.newInstance(mInfo.getSubscriptionId());
-        progress.setTargetFragment(getTargetFragment(), 0);
-        progress.show(getFragmentManager(), DeleteSimProfileProgressDialog.TAG);
-    }
-
-    @Override
-    public int getMetricsCategory() {
-        return SettingsEnums.DIALOG_DELETE_SIM_CONFIRMATION;
-    }
-}
diff --git a/src/com/android/settings/network/telephony/DeleteSimProfilePreferenceController.java b/src/com/android/settings/network/telephony/DeleteSimProfilePreferenceController.java
index 22ff2b6..daabf8b 100644
--- a/src/com/android/settings/network/telephony/DeleteSimProfilePreferenceController.java
+++ b/src/com/android/settings/network/telephony/DeleteSimProfilePreferenceController.java
@@ -17,7 +17,9 @@
 package com.android.settings.network.telephony;
 
 import android.content.Context;
+import android.content.Intent;
 import android.telephony.SubscriptionInfo;
+import android.telephony.euicc.EuiccManager;
 
 import androidx.fragment.app.Fragment;
 import androidx.preference.Preference;
@@ -31,12 +33,13 @@
 
     private SubscriptionInfo mSubscriptionInfo;
     private Fragment mParentFragment;
+    private int mRequestCode;
 
     public DeleteSimProfilePreferenceController(Context context, String preferenceKey) {
         super(context, preferenceKey);
     }
 
-    public void init(int subscriptionId, Fragment parentFragment) {
+    public void init(int subscriptionId, Fragment parentFragment, int requestCode) {
         mParentFragment = parentFragment;
 
         for (SubscriptionInfo info : SubscriptionUtil.getAvailableSubscriptions(
@@ -46,6 +49,7 @@
                 break;
             }
         }
+        mRequestCode = requestCode;
     }
 
     @Override
@@ -53,11 +57,10 @@
         super.displayPreference(screen);
         final Preference pref = screen.findPreference(getPreferenceKey());
         pref.setOnPreferenceClickListener(p -> {
-            final DeleteSimProfileConfirmationDialog dialogFragment =
-                    DeleteSimProfileConfirmationDialog.newInstance(mSubscriptionInfo);
-            dialogFragment.setTargetFragment(mParentFragment, 0);
-            dialogFragment.show(mParentFragment.getFragmentManager(),
-                    DeleteSimProfileConfirmationDialog.TAG);
+            final Intent intent = new Intent(EuiccManager.ACTION_DELETE_SUBSCRIPTION_PRIVILEGED);
+            intent.putExtra(EuiccManager.EXTRA_SUBSCRIPTION_ID,
+                    mSubscriptionInfo.getSubscriptionId());
+            mParentFragment.startActivityForResult(intent, mRequestCode);
             return true;
         });
     }
diff --git a/src/com/android/settings/network/telephony/DeleteSimProfileProgressDialog.java b/src/com/android/settings/network/telephony/DeleteSimProfileProgressDialog.java
deleted file mode 100644
index c176f3c..0000000
--- a/src/com/android/settings/network/telephony/DeleteSimProfileProgressDialog.java
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * Copyright (C) 2019 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.network.telephony;
-
-import android.app.Activity;
-import android.app.Dialog;
-import android.app.PendingIntent;
-import android.app.ProgressDialog;
-import android.app.settings.SettingsEnums;
-import android.content.BroadcastReceiver;
-import android.content.Context;
-import android.content.DialogInterface;
-import android.content.Intent;
-import android.content.IntentFilter;
-import android.os.Bundle;
-import android.telephony.euicc.EuiccManager;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.annotation.VisibleForTesting;
-
-import com.android.settings.R;
-import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
-
-public class DeleteSimProfileProgressDialog extends InstrumentedDialogFragment {
-    public static final String TAG = "delete_sim_progress";
-
-    // Note that this must be listed in AndroidManfiest.xml in a <protected-broadcast> tag
-    @VisibleForTesting
-    static final String PENDING_INTENT =
-            "com.android.settings.DELETE_SIM_PROFILE_RESULT";
-    private static final int PENDING_INTENT_REQUEST_CODE = 1;
-    private static final String KEY_SUBSCRIPTION_ID = "subscription_id";
-    @VisibleForTesting
-    static final String KEY_DELETE_STARTED = "delete_started";
-
-    private boolean mDeleteStarted;
-    private BroadcastReceiver mReceiver;
-
-    public static DeleteSimProfileProgressDialog newInstance(int subscriptionId) {
-        final DeleteSimProfileProgressDialog dialog = new DeleteSimProfileProgressDialog();
-        final Bundle args = new Bundle();
-        args.putInt(KEY_SUBSCRIPTION_ID, subscriptionId);
-        dialog.setArguments(args);
-        return dialog;
-    }
-
-    @Override
-    public void onSaveInstanceState(@NonNull Bundle outState) {
-        super.onSaveInstanceState(outState);
-        outState.putBoolean(KEY_DELETE_STARTED, mDeleteStarted);
-    }
-
-    @NonNull
-    @Override
-    public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
-        if (savedInstanceState != null) {
-            mDeleteStarted = savedInstanceState.getBoolean(KEY_DELETE_STARTED, false);
-        }
-        final Context context = getContext();
-        final ProgressDialog progressDialog = new ProgressDialog(context);
-        progressDialog.setMessage(
-                context.getString(R.string.mobile_network_erase_sim_dialog_progress));
-
-        mReceiver = new BroadcastReceiver() {
-            @Override
-            public void onReceive(Context context, Intent intent) {
-                dismiss();
-                final Activity activity = getActivity();
-                if (activity != null && !activity.isFinishing()) {
-                    activity.finish();
-                }
-            }
-        };
-        context.registerReceiver(mReceiver, new IntentFilter(PENDING_INTENT));
-
-        if (!mDeleteStarted) {
-            final PendingIntent pendingIntent = PendingIntent.getBroadcast(context,
-                    PENDING_INTENT_REQUEST_CODE, new Intent(PENDING_INTENT),
-                    PendingIntent.FLAG_ONE_SHOT);
-
-            final EuiccManager euiccManager = context.getSystemService(EuiccManager.class);
-            final int subId = getArguments().getInt(KEY_SUBSCRIPTION_ID);
-            euiccManager.deleteSubscription(subId, pendingIntent);
-            mDeleteStarted = true;
-        }
-
-        return progressDialog;
-    }
-
-    @Override
-    public void onDismiss(@NonNull DialogInterface dialog) {
-        if (mReceiver != null) {
-            final Context context = getContext();
-            if (context != null) {
-                context.unregisterReceiver(mReceiver);
-            }
-            mReceiver = null;
-        }
-    }
-
-    @Override
-    public int getMetricsCategory() {
-        return SettingsEnums.DIALOG_DELETE_SIM_PROGRESS;
-    }
-}
diff --git a/src/com/android/settings/network/telephony/MobileNetworkSettings.java b/src/com/android/settings/network/telephony/MobileNetworkSettings.java
index e18971d..838aa12 100644
--- a/src/com/android/settings/network/telephony/MobileNetworkSettings.java
+++ b/src/com/android/settings/network/telephony/MobileNetworkSettings.java
@@ -61,6 +61,7 @@
 
     private static final String LOG_TAG = "NetworkSettings";
     public static final int REQUEST_CODE_EXIT_ECM = 17;
+    public static final int REQUEST_CODE_DELETE_SUBSCRIPTION = 18;
     @VisibleForTesting
     static final String KEY_CLICKED_PREF = "key_clicked_pref";
 
@@ -138,7 +139,8 @@
             use(BillingCyclePreferenceController.class).init(mSubId);
             use(MmsMessagePreferenceController.class).init(mSubId);
             use(DisabledSubscriptionController.class).init(getLifecycle(), mSubId);
-            use(DeleteSimProfilePreferenceController.class).init(mSubId, this);
+            use(DeleteSimProfilePreferenceController.class).init(mSubId, this,
+                    REQUEST_CODE_DELETE_SUBSCRIPTION);
         }
         use(MobileDataPreferenceController.class).init(getFragmentManager(), mSubId);
         use(RoamingPreferenceController.class).init(getFragmentManager(), mSubId);
@@ -226,6 +228,13 @@
                 }
                 break;
 
+            case REQUEST_CODE_DELETE_SUBSCRIPTION:
+                final Activity activity = getActivity();
+                if (activity != null && !activity.isFinishing()) {
+                    activity.finish();
+                }
+                break;
+
             default:
                 break;
         }
@@ -268,5 +277,11 @@
                     result.add(sir);
                     return result;
                 }
+
+                /** suppress full page if user is not admin */
+                @Override
+                protected boolean isPageSearchEnabled(Context context) {
+                    return context.getSystemService(UserManager.class).isAdminUser();
+                }
             };
 }
diff --git a/src/com/android/settings/notification/AudioHelper.java b/src/com/android/settings/notification/AudioHelper.java
index d178113..01945fd 100644
--- a/src/com/android/settings/notification/AudioHelper.java
+++ b/src/com/android/settings/notification/AudioHelper.java
@@ -22,6 +22,7 @@
 import android.media.AudioSystem;
 import android.os.UserHandle;
 import android.os.UserManager;
+import android.util.Log;
 
 import com.android.settings.Utils;
 
@@ -30,6 +31,7 @@
  */
 public class AudioHelper {
 
+    private static final String TAG = "AudioHelper";
     private Context mContext;
     private AudioManager mAudioManager;
 
@@ -76,6 +78,15 @@
     }
 
     public int getMinVolume(int stream) {
-        return mAudioManager.getStreamMinVolume(stream);
+        int minVolume;
+        try {
+            minVolume = mAudioManager.getStreamMinVolume(stream);
+        } catch (IllegalArgumentException e) {
+            Log.w(TAG, "Invalid stream type " + stream);
+            // Fallback to STREAM_VOICE_CALL because CallVolumePreferenceController.java default
+            // return STREAM_VOICE_CALL in getAudioStream
+            minVolume = mAudioManager.getStreamMinVolume(AudioManager.STREAM_VOICE_CALL);
+        }
+        return minVolume;
     }
 }
diff --git a/src/com/android/settings/notification/ImportancePreference.java b/src/com/android/settings/notification/ImportancePreference.java
index 0d39c8f..3e81d0c 100644
--- a/src/com/android/settings/notification/ImportancePreference.java
+++ b/src/com/android/settings/notification/ImportancePreference.java
@@ -117,11 +117,13 @@
             case IMPORTANCE_LOW:
                 mAlertButton.setBackground(unselectedBackground);
                 mSilenceButton.setBackground(selectedBackground);
+                mSilenceButton.setSelected(true);
                 break;
             case IMPORTANCE_HIGH:
             default:
                 mSilenceButton.setBackground(unselectedBackground);
                 mAlertButton.setBackground(selectedBackground);
+                mAlertButton.setSelected(true);
                 break;
         }
         setImportanceSummary((ViewGroup) holder.itemView, mImportance, false);
diff --git a/src/com/android/settings/notification/NotificationButtonRelativeLayout.java b/src/com/android/settings/notification/NotificationButtonRelativeLayout.java
new file mode 100644
index 0000000..358cbf3
--- /dev/null
+++ b/src/com/android/settings/notification/NotificationButtonRelativeLayout.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2019 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.notification;
+
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.widget.Button;
+import android.widget.RelativeLayout;
+
+public class NotificationButtonRelativeLayout extends RelativeLayout {
+
+    public NotificationButtonRelativeLayout(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    @Override
+    public CharSequence getAccessibilityClassName() {
+        return Button.class.getName();
+    }
+}
\ No newline at end of file
diff --git a/src/com/android/settings/slices/SlicePreferenceController.java b/src/com/android/settings/slices/SlicePreferenceController.java
index 89294c7..2432c99 100644
--- a/src/com/android/settings/slices/SlicePreferenceController.java
+++ b/src/com/android/settings/slices/SlicePreferenceController.java
@@ -40,7 +40,8 @@
         LifecycleObserver, OnStart, OnStop, Observer<Slice> {
     @VisibleForTesting
     LiveData<Slice> mLiveData;
-    private SlicePreference mSlicePreference;
+    @VisibleForTesting
+    SlicePreference mSlicePreference;
     private Uri mUri;
 
     public SlicePreferenceController(Context context, String preferenceKey) {
@@ -82,8 +83,6 @@
 
     @Override
     public void onChanged(Slice slice) {
-        if (slice != null) {
-            mSlicePreference.onSliceUpdated(slice);
-        }
+        mSlicePreference.onSliceUpdated(slice);
     }
 }
diff --git a/tests/robotests/src/com/android/settings/network/MobileNetworkListFragmentTest.java b/tests/robotests/src/com/android/settings/network/MobileNetworkListFragmentTest.java
new file mode 100644
index 0000000..a65ff24
--- /dev/null
+++ b/tests/robotests/src/com/android/settings/network/MobileNetworkListFragmentTest.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2019 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.network;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.os.UserManager;
+
+import com.android.settings.search.BaseSearchIndexProvider;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.util.ReflectionHelpers;
+
+
+@RunWith(RobolectricTestRunner.class)
+public class MobileNetworkListFragmentTest {
+    @Mock
+    private Context mContext;
+    @Mock
+    private UserManager mUserManager;
+
+    private MobileNetworkListFragment mFragment;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mFragment = new MobileNetworkListFragment();
+    }
+
+    @Test
+    public void isPageSearchEnabled_adminUser_shouldReturnTrue() {
+        when(mContext.getSystemService(UserManager.class)).thenReturn(mUserManager);
+        when(mUserManager.isAdminUser()).thenReturn(true);
+        final BaseSearchIndexProvider provider =
+                (BaseSearchIndexProvider) mFragment.SEARCH_INDEX_DATA_PROVIDER;
+
+        final Object obj = ReflectionHelpers.callInstanceMethod(provider, "isPageSearchEnabled",
+                ReflectionHelpers.ClassParameter.from(Context.class, mContext));
+        final boolean isEnabled = (Boolean) obj;
+
+        assertThat(isEnabled).isTrue();
+    }
+
+    @Test
+    public void isPageSearchEnabled_nonAdminUser_shouldReturnFalse() {
+        when(mContext.getSystemService(UserManager.class)).thenReturn(mUserManager);
+        when(mUserManager.isAdminUser()).thenReturn(false);
+        final BaseSearchIndexProvider provider =
+                (BaseSearchIndexProvider) mFragment.SEARCH_INDEX_DATA_PROVIDER;
+
+        final Object obj = ReflectionHelpers.callInstanceMethod(provider, "isPageSearchEnabled",
+                ReflectionHelpers.ClassParameter.from(Context.class, mContext));
+        final boolean isEnabled = (Boolean) obj;
+
+        assertThat(isEnabled).isFalse();
+    }
+}
diff --git a/tests/robotests/src/com/android/settings/network/telephony/DeleteSimProfileConfirmationDialogTest.java b/tests/robotests/src/com/android/settings/network/telephony/DeleteSimProfileConfirmationDialogTest.java
deleted file mode 100644
index 9b6f551..0000000
--- a/tests/robotests/src/com/android/settings/network/telephony/DeleteSimProfileConfirmationDialogTest.java
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- * Copyright (C) 2019 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.network.telephony;
-
-import static org.mockito.Mockito.doNothing;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.spy;
-import static org.mockito.Mockito.verify;
-
-import android.app.Activity;
-import android.app.Dialog;
-import android.content.Context;
-import android.content.DialogInterface;
-import android.telephony.SubscriptionInfo;
-
-import androidx.appcompat.app.AlertDialog;
-import androidx.fragment.app.FragmentActivity;
-
-import com.android.settings.testutils.shadow.ShadowAlertDialogCompat;
-
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.Mock;
-import org.mockito.MockitoAnnotations;
-import org.robolectric.Robolectric;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.annotation.Config;
-import org.robolectric.shadows.androidx.fragment.FragmentController;
-
-@RunWith(RobolectricTestRunner.class)
-@Config(shadows = ShadowAlertDialogCompat.class)
-public class DeleteSimProfileConfirmationDialogTest {
-    @Mock
-    private SubscriptionInfo mSubscriptionInfo;
-
-    private DeleteSimProfileConfirmationDialog mDialogFragment;
-
-    @Before
-    public void setUp() {
-        MockitoAnnotations.initMocks(this);
-        mDialogFragment = spy(DeleteSimProfileConfirmationDialog.newInstance(mSubscriptionInfo));
-        doNothing().when(mDialogFragment).beginDeletionWithProgress();
-    }
-
-    @Test
-    public void showDialog_dialogCancelled_deleteNotCalled() {
-        FragmentController.setupFragment(mDialogFragment, FragmentActivity.class,
-                0 /* containerViewId */,
-                null /* bundle */);
-        final AlertDialog dialog = ShadowAlertDialogCompat.getLatestAlertDialog();
-        dialog.getButton(DialogInterface.BUTTON_NEGATIVE).performClick();
-        verify(mDialogFragment, never()).beginDeletionWithProgress();
-    }
-
-    @Test
-    public void showDialog_dialogOk_deleteWasCalled() {
-        FragmentController.setupFragment(mDialogFragment, FragmentActivity.class,
-                0 /* containerViewId */,
-                null /* bundle */);
-        final AlertDialog dialog = ShadowAlertDialogCompat.getLatestAlertDialog();
-        dialog.getButton(DialogInterface.BUTTON_POSITIVE).performClick();
-        verify(mDialogFragment).beginDeletionWithProgress();
-    }
-}
diff --git a/tests/robotests/src/com/android/settings/network/telephony/DeleteSimProfilePreferenceControllerTest.java b/tests/robotests/src/com/android/settings/network/telephony/DeleteSimProfilePreferenceControllerTest.java
index 21fd19b..ca8fcf8 100644
--- a/tests/robotests/src/com/android/settings/network/telephony/DeleteSimProfilePreferenceControllerTest.java
+++ b/tests/robotests/src/com/android/settings/network/telephony/DeleteSimProfilePreferenceControllerTest.java
@@ -18,11 +18,15 @@
 
 import static com.google.common.truth.Truth.assertThat;
 
+import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
 import android.content.Context;
+import android.content.Intent;
 import android.telephony.SubscriptionInfo;
+import android.telephony.SubscriptionManager;
 import android.telephony.euicc.EuiccManager;
 
 import androidx.fragment.app.Fragment;
@@ -35,6 +39,7 @@
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 import org.robolectric.RobolectricTestRunner;
@@ -46,12 +51,12 @@
 @RunWith(RobolectricTestRunner.class)
 public class DeleteSimProfilePreferenceControllerTest {
     private static final String PREF_KEY = "delete_profile_key";
+    private static final int REQUEST_CODE = 4321;
     private static final int SUB_ID = 1234;
     private static final int OTHER_ID = 5678;
 
     @Mock
     private Fragment mFragment;
-
     @Mock
     private SubscriptionInfo mSubscriptionInfo;
     @Mock
@@ -85,27 +90,42 @@
     @Test
     public void getAvailabilityStatus_noSubs_notAvailable() {
         SubscriptionUtil.setAvailableSubscriptionsForTesting(new ArrayList<>());
-        mController.init(SUB_ID, mFragment);
+        mController.init(SUB_ID, mFragment, REQUEST_CODE);
         assertThat(mController.isAvailable()).isFalse();
     }
 
     @Test
     public void getAvailabilityStatus_physicalSim_notAvailable() {
         when(mSubscriptionInfo.isEmbedded()).thenReturn(false);
-        mController.init(SUB_ID, mFragment);
+        mController.init(SUB_ID, mFragment, REQUEST_CODE);
         assertThat(mController.isAvailable()).isFalse();
     }
 
     @Test
     public void getAvailabilityStatus_unknownSim_notAvailable() {
         when(mSubscriptionInfo.getSubscriptionId()).thenReturn(OTHER_ID);
-        mController.init(SUB_ID, mFragment);
+        mController.init(SUB_ID, mFragment, REQUEST_CODE);
         assertThat(mController.isAvailable()).isFalse();
     }
 
     @Test
     public void getAvailabilityStatus_knownEsim_isAvailable() {
-        mController.init(SUB_ID, mFragment);
+        mController.init(SUB_ID, mFragment, REQUEST_CODE);
         assertThat(mController.isAvailable()).isTrue();
     }
+
+    @Test
+    public void onPreferenceClick_startsIntent() {
+        mController.init(SUB_ID, mFragment, REQUEST_CODE);
+        mController.displayPreference(mScreen);
+        mPreference.performClick();
+
+        final ArgumentCaptor<Intent> intentCaptor = ArgumentCaptor.forClass(Intent.class);
+        verify(mFragment).startActivityForResult(intentCaptor.capture(), eq(REQUEST_CODE));
+        final Intent intent = intentCaptor.getValue();
+        assertThat(intent.getAction()).isEqualTo(
+                EuiccManager.ACTION_DELETE_SUBSCRIPTION_PRIVILEGED);
+        assertThat(intent.getIntExtra(EuiccManager.EXTRA_SUBSCRIPTION_ID,
+                SubscriptionManager.INVALID_SUBSCRIPTION_ID)).isEqualTo(SUB_ID);
+    }
 }
diff --git a/tests/robotests/src/com/android/settings/network/telephony/DeleteSimProfileProgressDialogTest.java b/tests/robotests/src/com/android/settings/network/telephony/DeleteSimProfileProgressDialogTest.java
deleted file mode 100644
index aebcc46..0000000
--- a/tests/robotests/src/com/android/settings/network/telephony/DeleteSimProfileProgressDialogTest.java
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * Copyright (C) 2019 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.network.telephony;
-
-import static com.android.settings.network.telephony.DeleteSimProfileProgressDialog.KEY_DELETE_STARTED;
-import static com.android.settings.network.telephony.DeleteSimProfileProgressDialog.PENDING_INTENT;
-
-import static com.google.common.truth.Truth.assertThat;
-
-import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.ArgumentMatchers.anyInt;
-import static org.mockito.ArgumentMatchers.eq;
-import static org.mockito.ArgumentMatchers.notNull;
-import static org.mockito.Mockito.doNothing;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.spy;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
-import android.app.Dialog;
-import android.app.PendingIntent;
-import android.content.BroadcastReceiver;
-import android.content.Context;
-import android.content.Intent;
-import android.content.IntentFilter;
-import android.os.Bundle;
-import android.telephony.euicc.EuiccManager;
-
-import androidx.fragment.app.Fragment;
-import androidx.fragment.app.FragmentActivity;
-
-import com.android.settings.testutils.shadow.ShadowAlertDialogCompat;
-
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.ArgumentCaptor;
-import org.mockito.Mock;
-import org.mockito.MockitoAnnotations;
-import org.robolectric.RobolectricTestRunner;
-import org.robolectric.RuntimeEnvironment;
-import org.robolectric.annotation.Config;
-
-@RunWith(RobolectricTestRunner.class)
-@Config(shadows = ShadowAlertDialogCompat.class)
-public class DeleteSimProfileProgressDialogTest {
-    private static final int SUB_ID = 111;
-
-    @Mock
-    private FragmentActivity mActivity;
-    @Mock
-    private Fragment mTargetFragment;
-    @Mock
-    private EuiccManager mEuiccManager;
-
-    private Context mContext;
-    private DeleteSimProfileProgressDialog mDialogFragment;
-
-    @Before
-    public void setUp() {
-        MockitoAnnotations.initMocks(this);
-        mContext = spy(RuntimeEnvironment.application);
-
-        when(mContext.getSystemService(EuiccManager.class)).thenReturn(mEuiccManager);
-        mDialogFragment = spy(DeleteSimProfileProgressDialog.newInstance(SUB_ID));
-        when(mDialogFragment.getContext()).thenReturn(mContext);
-        when(mDialogFragment.getTargetFragment()).thenReturn(mTargetFragment);
-        when(mDialogFragment.getActivity()).thenReturn(mActivity);
-    }
-
-    @Test
-    public void onCreateDialog_firstShowing_deleteStartedAndRecordedInOutState() {
-        mDialogFragment.onCreateDialog(null);
-        verify(mEuiccManager).deleteSubscription(eq(SUB_ID), notNull());
-
-        final Bundle outState = new Bundle();
-        mDialogFragment.onSaveInstanceState(outState);
-        assertThat(outState.containsKey(KEY_DELETE_STARTED)).isTrue();
-        assertThat(outState.getBoolean(KEY_DELETE_STARTED)).isTrue();
-    }
-
-    @Test
-    public void showDialog_secondShowing_deleteNotStarted() {
-        final Bundle inState = new Bundle();
-        inState.putBoolean(KEY_DELETE_STARTED, true);
-        mDialogFragment.onCreateDialog(inState);
-
-        verify(mEuiccManager, never()).deleteSubscription(anyInt(), any());
-
-        final Bundle outState = new Bundle();
-        mDialogFragment.onSaveInstanceState(outState);
-        assertThat(outState.containsKey(KEY_DELETE_STARTED)).isTrue();
-        assertThat(outState.getBoolean(KEY_DELETE_STARTED)).isTrue();
-    }
-
-    @Test
-    public void showDialog_pendingIntentReceiverFired_activityFinished() {
-        mDialogFragment.onCreateDialog(null);
-
-        final ArgumentCaptor<PendingIntent> intentCaptor = ArgumentCaptor.forClass(
-                PendingIntent.class);
-        verify(mEuiccManager).deleteSubscription(eq(SUB_ID), intentCaptor.capture());
-        assertThat(intentCaptor.getValue()).isNotNull();
-
-        final ArgumentCaptor<BroadcastReceiver> receiverCaptor = ArgumentCaptor.forClass(
-                BroadcastReceiver.class);
-        verify(mContext).registerReceiver(receiverCaptor.capture(), any(IntentFilter.class));
-
-        doNothing().when(mDialogFragment).dismiss();
-        receiverCaptor.getValue().onReceive(mContext, new Intent(PENDING_INTENT));
-        verify(mDialogFragment).dismiss();
-        verify(mActivity).finish();
-    }
-
-    @Test
-    public void onDismiss_receiverUnregistered() {
-        Dialog dialog = mDialogFragment.onCreateDialog(null);
-        final ArgumentCaptor<BroadcastReceiver> receiverCaptor = ArgumentCaptor.forClass(
-                BroadcastReceiver.class);
-        verify(mContext).registerReceiver(receiverCaptor.capture(), any(IntentFilter.class));
-
-        mDialogFragment.onDismiss(dialog);
-        verify(mContext).unregisterReceiver(eq(receiverCaptor.getValue()));
-    }
-}
diff --git a/tests/robotests/src/com/android/settings/network/telephony/MobileNetworkSettingsTest.java b/tests/robotests/src/com/android/settings/network/telephony/MobileNetworkSettingsTest.java
index 011bca5..4afe0fc 100644
--- a/tests/robotests/src/com/android/settings/network/telephony/MobileNetworkSettingsTest.java
+++ b/tests/robotests/src/com/android/settings/network/telephony/MobileNetworkSettingsTest.java
@@ -16,17 +16,21 @@
 
 package com.android.settings.network.telephony;
 
+import static com.android.settings.network.telephony.MobileNetworkSettings.REQUEST_CODE_DELETE_SUBSCRIPTION;
+
 import static com.google.common.truth.Truth.assertThat;
 
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
 import android.app.usage.NetworkStatsManager;
 import android.content.Context;
 import android.net.NetworkPolicyManager;
 import android.os.Bundle;
+import android.os.UserManager;
 import android.provider.Settings;
 import android.telephony.TelephonyManager;
 
@@ -35,6 +39,7 @@
 import com.android.settings.core.FeatureFlags;
 import com.android.settings.datausage.DataUsageSummaryPreferenceController;
 import com.android.settings.development.featureflags.FeatureFlagPersistent;
+import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settings.testutils.shadow.ShadowEntityHeaderController;
 import com.android.settings.widget.EntityHeaderController;
 import com.android.settingslib.core.AbstractPreferenceController;
@@ -47,6 +52,7 @@
 import org.robolectric.RobolectricTestRunner;
 import org.robolectric.RuntimeEnvironment;
 import org.robolectric.annotation.Config;
+import org.robolectric.util.ReflectionHelpers;
 
 import java.util.List;
 
@@ -80,6 +86,7 @@
         args.putInt(Settings.EXTRA_SUB_ID, subscriptionId);
         mFragment.setArguments(args);
         when(mFragment.getActivity()).thenReturn(mActivity);
+        when(mActivity.isFinishing()).thenReturn(false);
         when(mActivity.getSystemService(NetworkPolicyManager.class)).thenReturn(
                 mNetworkPolicyManager);
     }
@@ -118,4 +125,47 @@
                 .count())
                 .isEqualTo(1);
     }
+
+    @Test
+    public void onActivityResult_noActivity_noCrash() {
+        when(mFragment.getActivity()).thenReturn(null);
+        // this should not crash
+        mFragment.onActivityResult(REQUEST_CODE_DELETE_SUBSCRIPTION, 0, null);
+    }
+
+    @Test
+    public void onActivityResult_deleteSubscription_activityFinishes() {
+        mFragment.onActivityResult(REQUEST_CODE_DELETE_SUBSCRIPTION, 0, null);
+        verify(mActivity).finish();
+    }
+
+    @Test
+    public void isPageSearchEnabled_adminUser_shouldReturnTrue() {
+        final UserManager userManager = mock(UserManager.class);
+        when(mContext.getSystemService(UserManager.class)).thenReturn(userManager);
+        when(userManager.isAdminUser()).thenReturn(true);
+        final BaseSearchIndexProvider provider =
+                (BaseSearchIndexProvider) mFragment.SEARCH_INDEX_DATA_PROVIDER;
+
+        final Object obj = ReflectionHelpers.callInstanceMethod(provider, "isPageSearchEnabled",
+                ReflectionHelpers.ClassParameter.from(Context.class, mContext));
+        final boolean isEnabled = (Boolean) obj;
+
+        assertThat(isEnabled).isTrue();
+    }
+
+    @Test
+    public void isPageSearchEnabled_nonAdminUser_shouldReturnFalse() {
+        final UserManager userManager = mock(UserManager.class);
+        when(mContext.getSystemService(UserManager.class)).thenReturn(userManager);
+        when(userManager.isAdminUser()).thenReturn(false);
+        final BaseSearchIndexProvider provider =
+                (BaseSearchIndexProvider) mFragment.SEARCH_INDEX_DATA_PROVIDER;
+
+        final Object obj = ReflectionHelpers.callInstanceMethod(provider, "isPageSearchEnabled",
+                ReflectionHelpers.ClassParameter.from(Context.class, mContext));
+        final boolean isEnabled = (Boolean) obj;
+
+        assertThat(isEnabled).isFalse();
+    }
 }
diff --git a/tests/robotests/src/com/android/settings/notification/AudioHelperTest.java b/tests/robotests/src/com/android/settings/notification/AudioHelperTest.java
new file mode 100644
index 0000000..79d0198
--- /dev/null
+++ b/tests/robotests/src/com/android/settings/notification/AudioHelperTest.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2019 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.notification;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import android.content.Context;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(RobolectricTestRunner.class)
+public class AudioHelperTest {
+
+    private static final int START = -10;
+    private static final int END = 10;
+    private static final int DEFAULT = -100;
+
+    private Context mContext;
+    private AudioHelper mAudioHelper;
+
+    @Before
+    public void setUp() {
+        mContext = RuntimeEnvironment.application;
+        mAudioHelper = new AudioHelper(mContext);
+    }
+
+    @Test
+    public void getMaxVolume_anyStreamType_getValue() {
+        int volume = DEFAULT;
+
+        for (int i = START; i < END; i++) {
+            volume = mAudioHelper.getMaxVolume(i);
+            assertThat(volume).isNotEqualTo(DEFAULT);
+        }
+    }
+
+    @Test
+    public void getMinVolume_anyStreamType_getValue() {
+        int volume = DEFAULT;
+
+        for (int i = START; i < END; i++) {
+            volume = mAudioHelper.getMinVolume(i);
+            assertThat(volume).isNotEqualTo(DEFAULT);
+        }
+    }
+}
diff --git a/tests/robotests/src/com/android/settings/slices/SlicePreferenceControllerTest.java b/tests/robotests/src/com/android/settings/slices/SlicePreferenceControllerTest.java
index 364fb60..65eaddd 100644
--- a/tests/robotests/src/com/android/settings/slices/SlicePreferenceControllerTest.java
+++ b/tests/robotests/src/com/android/settings/slices/SlicePreferenceControllerTest.java
@@ -41,6 +41,8 @@
 
     @Mock
     private LiveData<Slice> mLiveData;
+    @Mock
+    private SlicePreference mSlicePreference;
     private Context mContext;
     private SlicePreferenceController mController;
     private Uri mUri;
@@ -53,6 +55,7 @@
         mContext = spy(RuntimeEnvironment.application);
         mController = new SlicePreferenceController(mContext, KEY);
         mController.mLiveData = mLiveData;
+        mController.mSlicePreference = mSlicePreference;
         mUri = Uri.EMPTY;
     }
 
@@ -78,4 +81,11 @@
         mController.onStop();
         verify(mLiveData).removeObserver(mController);
     }
+
+    @Test
+    public void onChanged_nullSlice_updateSlice() {
+        mController.onChanged(null);
+
+        verify(mController.mSlicePreference).onSliceUpdated(null);
+    }
 }
\ No newline at end of file