Support AOD in the Universal Settings API

Bug: 67997452
Test: make -j RunSettingsRoboTests
Change-Id: I161bc5746573444b284a03de8f5d4d8e510153dc

tests/robotests/src/com/android/settings/display/AmbientDisplaySettingsTest.java

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2017 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.display;
+
+import static org.mockito.Mockito.any;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+
+import android.content.Context;
+
+import com.android.settings.testutils.SettingsRobolectricTestRunner;
+import com.android.settingslib.core.AbstractPreferenceController;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+public class AmbientDisplaySettingsTest {
+
+    private TestFragment mTestFragment;
+
+    private Context mContext;
+
+    @Before
+    public void setUp() throws Exception {
+        MockitoAnnotations.initMocks(this);
+        mContext = RuntimeEnvironment.application;
+        mTestFragment = spy(new TestFragment());
+    }
+
+    @Test
+    public void onAttach_shouldSetConfigAndCallback() {
+        final AmbientDisplayAlwaysOnPreferenceController controller = mock(
+                AmbientDisplayAlwaysOnPreferenceController.class);
+        doReturn(controller).when(mTestFragment).use(
+                AmbientDisplayAlwaysOnPreferenceController.class);
+
+        mTestFragment.onAttach(mContext);
+
+        verify(controller).setConfig(any());
+        verify(controller).setCallback(any());
+    }
+
+    public static class TestFragment extends AmbientDisplaySettings {
+        @Override
+        protected <T extends AbstractPreferenceController> T use(Class<T> clazz) {
+            return super.use(clazz);
+        }
+    }
+}