Add app default UI to App & Notifications.

Bug: 31799948
Test: RunSettingsRoboTests
Change-Id: Icca4954f82af38316cc232b8879c0f7e7869ecb3

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

@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2016 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.applications;
+
+import android.content.Context;
+
+import com.android.settings.R;
+import com.android.settings.TestConfig;
+import com.android.settings.testutils.FakeFeatureFactory;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Answers;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.annotation.Config;
+import org.robolectric.shadows.ShadowApplication;
+
+import static com.google.common.truth.Truth.assertThat;
+import static org.mockito.Mockito.when;
+
+@RunWith(RobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class AdvancedAppSettingsTest {
+
+    @Mock(answer = Answers.RETURNS_DEEP_STUBS)
+    private Context mContext;
+
+    private FakeFeatureFactory mFeatureFactory;
+    private AdvancedAppSettings mFragment;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        FakeFeatureFactory.setupForTest(mContext);
+        mFeatureFactory = (FakeFeatureFactory) FakeFeatureFactory.getFactory(mContext);
+        mFragment = new AdvancedAppSettings();
+        mFragment.onAttach(ShadowApplication.getInstance().getApplicationContext());
+    }
+
+    @Test
+    public void getPreferenceScreenResId_differentIAEnabledState_shouldUseDifferentPrefLayout() {
+        when(mFeatureFactory.dashboardFeatureProvider.isEnabled()).thenReturn(true);
+        assertThat(mFragment.getPreferenceScreenResId()).isEqualTo(
+                R.xml.app_default_settings);
+
+        when(mFeatureFactory.dashboardFeatureProvider.isEnabled()).thenReturn(false);
+        assertThat(mFragment.getPreferenceScreenResId()).isEqualTo(
+                R.xml.advanced_apps);
+    }
+
+}