Hook up screen brightness knob to DisplayPowerController.
This knob is designed to effectively tune the battery saver.
Bug: 34693888
Test: FrameworksServicesTests
Change-Id: I9fd7896f59fabd9baf649cdb12f01b1baaf4c34b
diff --git a/services/tests/servicestests/src/com/android/server/power/PowerManagerServiceTest.java b/services/tests/servicestests/src/com/android/server/power/PowerManagerServiceTest.java
new file mode 100644
index 0000000..967b0a4
--- /dev/null
+++ b/services/tests/servicestests/src/com/android/server/power/PowerManagerServiceTest.java
@@ -0,0 +1,66 @@
+/*
+ * 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.server.power;
+
+import android.hardware.display.DisplayManagerInternal.DisplayPowerRequest;
+import android.os.PowerSaveState;
+import android.test.AndroidTestCase;
+import android.test.suitebuilder.annotation.SmallTest;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+import static com.google.common.truth.Truth.assertThat;
+import static org.mockito.Matchers.anyBoolean;
+import static org.mockito.Matchers.eq;
+import static org.mockito.Mockito.when;
+
+/**
+ * Tests for {@link com.android.server.power.PowerManagerService}
+ */
+public class PowerManagerServiceTest extends AndroidTestCase {
+ private static final float PRECISION = 0.001f;
+ private static final float BRIGHTNESS_FACTOR = 0.7f;
+ private static final boolean BATTERY_SAVER_ENABLED = true;
+
+ private @Mock BatterySaverPolicy mBatterySaverPolicy;
+ private PowerManagerService mService;
+ private PowerSaveState mPowerSaveState;
+ private DisplayPowerRequest mDisplayPowerRequest;
+
+ public void setUp() throws Exception {
+ super.setUp();
+ MockitoAnnotations.initMocks(this);
+
+ mPowerSaveState = new PowerSaveState.Builder()
+ .setBatterySaverEnabled(BATTERY_SAVER_ENABLED)
+ .setBrightnessFactor(BRIGHTNESS_FACTOR)
+ .build();
+ when(mBatterySaverPolicy.getBatterySaverPolicy(
+ eq(BatterySaverPolicy.ServiceType.SCREEN_BRIGHTNESS), anyBoolean()))
+ .thenReturn(mPowerSaveState);
+ mDisplayPowerRequest = new DisplayPowerRequest();
+ mService = new PowerManagerService(getContext(), mBatterySaverPolicy);
+ }
+
+ @SmallTest
+ public void testUpdatePowerScreenPolicy_UpdateDisplayPowerRequest() {
+ mService.updatePowerRequestFromBatterySaverPolicy(mDisplayPowerRequest);
+ assertThat(mDisplayPowerRequest.lowPowerMode).isEqualTo(BATTERY_SAVER_ENABLED);
+ assertThat(mDisplayPowerRequest.screenLowPowerBrightnessFactor)
+ .isWithin(PRECISION).of(BRIGHTNESS_FACTOR);
+ }
+}