1/*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.server.power;
18
19import android.content.Context;
20import android.hardware.display.DisplayManagerInternal.DisplayPowerRequest;
21import android.os.PowerManager;
22import android.os.PowerSaveState;
23import android.test.AndroidTestCase;
24import android.test.suitebuilder.annotation.SmallTest;
25import android.text.TextUtils;
26import java.io.File;
27import java.io.FileWriter;
28import java.io.IOException;
29import java.io.OutputStreamWriter;
30import org.junit.Rule;
31import org.junit.rules.TemporaryFolder;
32import org.mockito.Mock;
33import org.mockito.MockitoAnnotations;
34
35import static com.google.common.truth.Truth.assertThat;
36import static org.mockito.Matchers.anyBoolean;
37import static org.mockito.Matchers.eq;
38import static org.mockito.Mockito.when;
39
40/**
41 * Tests for {@link com.android.server.power.PowerManagerService}
42 */
43public class PowerManagerServiceTest extends AndroidTestCase {
44    private static final float PRECISION = 0.001f;
45    private static final float BRIGHTNESS_FACTOR = 0.7f;
46    private static final boolean BATTERY_SAVER_ENABLED = true;
47    private static final String LAST_REBOOT_REASON = "last_reboot_reason";
48
49    private @Mock BatterySaverPolicy mBatterySaverPolicy;
50    private PowerManagerService mService;
51    private PowerSaveState mPowerSaveState;
52    private DisplayPowerRequest mDisplayPowerRequest;
53    private File mTempReason;
54
55    @Rule
56    public TemporaryFolder temporaryFolder = new TemporaryFolder();
57
58    public void setUp() throws Exception {
59        super.setUp();
60        MockitoAnnotations.initMocks(this);
61
62        mPowerSaveState = new PowerSaveState.Builder()
63                .setBatterySaverEnabled(BATTERY_SAVER_ENABLED)
64                .setBrightnessFactor(BRIGHTNESS_FACTOR)
65                .build();
66        when(mBatterySaverPolicy.getBatterySaverPolicy(
67                eq(BatterySaverPolicy.ServiceType.SCREEN_BRIGHTNESS), anyBoolean()))
68                .thenReturn(mPowerSaveState);
69        mDisplayPowerRequest = new DisplayPowerRequest();
70        mService = new PowerManagerService(getContext(), mBatterySaverPolicy);
71        temporaryFolder.create();
72        mTempReason = temporaryFolder.newFile(LAST_REBOOT_REASON);
73    }
74
75    @SmallTest
76    public void testUpdatePowerScreenPolicy_UpdateDisplayPowerRequest() {
77        mService.updatePowerRequestFromBatterySaverPolicy(mDisplayPowerRequest);
78        assertThat(mDisplayPowerRequest.lowPowerMode).isEqualTo(BATTERY_SAVER_ENABLED);
79        assertThat(mDisplayPowerRequest.screenLowPowerBrightnessFactor)
80                .isWithin(PRECISION).of(BRIGHTNESS_FACTOR);
81    }
82
83    @SmallTest
84    public void testGetLastShutdownReasonInternal() {
85        try {
86            FileWriter writer = new FileWriter(mTempReason);
87            writer.append("thermal-shutdown\n");
88            writer.close();
89        } catch (IOException e) {
90            e.printStackTrace();
91        }
92        int reason = mService.getLastShutdownReasonInternal(mTempReason);
93        assertThat(reason).isEqualTo(PowerManager.SHUTDOWN_REASON_THERMAL_SHUTDOWN);
94    }
95}
96