1/*
2 * Copyright (C) 2018 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.internal.os;
18
19import static android.os.BatteryStats.STATS_SINCE_CHARGED;
20
21import static com.android.internal.os.BatteryStatsImpl.LongSamplingCounter;
22import static com.android.internal.os.BatteryStatsImpl.TimeBase;
23
24import static org.junit.Assert.assertEquals;
25import static org.mockito.Mockito.verify;
26import static org.mockito.Mockito.verifyNoMoreInteractions;
27import static org.mockito.Mockito.verifyZeroInteractions;
28import static org.mockito.Mockito.when;
29
30import android.os.Parcel;
31import android.support.test.filters.SmallTest;
32import android.support.test.runner.AndroidJUnit4;
33
34import org.junit.Before;
35import org.junit.Test;
36import org.junit.runner.RunWith;
37import org.mockito.Mock;
38import org.mockito.Mockito;
39import org.mockito.MockitoAnnotations;
40
41/**
42 * Test class for {@link LongSamplingCounter}.
43 *
44 * To run the tests, use
45 *
46 * bit FrameworksCoreTests:com.android.internal.os.LongSamplingCounterTest
47 */
48@SmallTest
49@RunWith(AndroidJUnit4.class)
50public class LongSamplingCounterTest {
51
52    private static final long COUNT = 1111;
53    private static final long CURRENT_COUNT = 5555;
54
55    @Mock
56    private TimeBase mTimeBase;
57    private LongSamplingCounter mCounter;
58
59    @Before
60    public void setUp() {
61        MockitoAnnotations.initMocks(this);
62        mCounter = new LongSamplingCounter(mTimeBase);
63        Mockito.reset(mTimeBase);
64    }
65
66    @Test
67    public void testReadWriteParcel() {
68        final Parcel parcel = Parcel.obtain();
69        updateCounts(COUNT, CURRENT_COUNT);
70        mCounter.writeToParcel(parcel);
71        parcel.setDataPosition(0);
72
73        // Now clear counterArray and verify values are read from parcel correctly.
74        updateCounts(0, 0);
75
76        mCounter = new LongSamplingCounter(mTimeBase, parcel);
77        assertEquals(COUNT, mCounter.mCount);
78        assertEquals(CURRENT_COUNT, mCounter.mCurrentCount);
79        parcel.recycle();
80    }
81
82    @Test
83    public void testReadWriteSummaryParcel() {
84        final Parcel parcel = Parcel.obtain();
85        updateCounts(COUNT, CURRENT_COUNT);
86        mCounter.writeSummaryFromParcelLocked(parcel);
87        parcel.setDataPosition(0);
88
89        // Now clear counterArray and verify values are read from parcel correctly.
90        updateCounts(0, 0);
91
92        mCounter.readSummaryFromParcelLocked(parcel);
93        assertEquals(COUNT, mCounter.mCount);
94        parcel.recycle();
95    }
96
97    @Test
98    public void testOnTimeStarted() {
99        updateCounts(COUNT, CURRENT_COUNT);
100        mCounter.onTimeStarted(0, 0, 0);
101        assertEquals(COUNT, mCounter.mCount);
102        assertEquals(COUNT, mCounter.mUnpluggedCount);
103    }
104
105    @Test
106    public void testOnTimeStopped() {
107        updateCounts(COUNT, CURRENT_COUNT);
108        mCounter.onTimeStopped(0, 0, 0);
109        assertEquals(COUNT, mCounter.mCount);
110    }
111
112    @Test
113    public void testAddCountLocked() {
114        updateCounts(0, 0);
115        assertEquals(0, mCounter.getCountLocked(0));
116        when(mTimeBase.isRunning()).thenReturn(true);
117        mCounter.addCountLocked(111);
118        assertEquals(111, mCounter.getCountLocked(STATS_SINCE_CHARGED));
119        assertEquals(111, mCounter.mCurrentCount);
120        mCounter.addCountLocked(222);
121        assertEquals(333, mCounter.getCountLocked(STATS_SINCE_CHARGED));
122        assertEquals(333, mCounter.mCurrentCount);
123
124        when(mTimeBase.isRunning()).thenReturn(false);
125        mCounter.addCountLocked(456);
126        assertEquals(333, mCounter.getCountLocked(STATS_SINCE_CHARGED));
127        assertEquals(789, mCounter.mCurrentCount);
128
129        mCounter.addCountLocked(444, true);
130        assertEquals(777, mCounter.getCountLocked(STATS_SINCE_CHARGED));
131        assertEquals(1233, mCounter.mCurrentCount);
132        mCounter.addCountLocked(567, false);
133        assertEquals(777, mCounter.getCountLocked(STATS_SINCE_CHARGED));
134        assertEquals(1800, mCounter.mCurrentCount);
135    }
136
137    @Test
138    public void testUpdate() {
139        updateCounts(0, 0);
140        assertEquals(0, mCounter.getCountLocked(0));
141        when(mTimeBase.isRunning()).thenReturn(true);
142        mCounter.update(111);
143        assertEquals(111, mCounter.getCountLocked(STATS_SINCE_CHARGED));
144        assertEquals(111, mCounter.mCurrentCount);
145        mCounter.update(333);
146        assertEquals(333, mCounter.getCountLocked(STATS_SINCE_CHARGED));
147        assertEquals(333, mCounter.mCurrentCount);
148
149        when(mTimeBase.isRunning()).thenReturn(false);
150        mCounter.update(789);
151        assertEquals(333, mCounter.getCountLocked(STATS_SINCE_CHARGED));
152        assertEquals(789, mCounter.mCurrentCount);
153        mCounter.update(100);
154        assertEquals(333, mCounter.getCountLocked(STATS_SINCE_CHARGED));
155        assertEquals(100, mCounter.mCurrentCount);
156
157        mCounter.update(544, true);
158        assertEquals(777, mCounter.getCountLocked(STATS_SINCE_CHARGED));
159        assertEquals(544, mCounter.mCurrentCount);
160        mCounter.update(1544, false);
161        assertEquals(777, mCounter.getCountLocked(STATS_SINCE_CHARGED));
162        assertEquals(1544, mCounter.mCurrentCount);
163    }
164
165    @Test
166    public void testReset() {
167        updateCounts(COUNT, CURRENT_COUNT);
168        // Test with detachIfReset=false
169        mCounter.reset(false /* detachIfReset */);
170        assertEquals(0, mCounter.mCount);
171        assertEquals(CURRENT_COUNT, mCounter.mCurrentCount);
172        verifyZeroInteractions(mTimeBase);
173
174        updateCounts(COUNT, CURRENT_COUNT);
175        // Test with detachIfReset=true
176        mCounter.reset(true /* detachIfReset */);
177        assertEquals(0, mCounter.mCount);
178        assertEquals(CURRENT_COUNT, mCounter.mCurrentCount);
179        verify(mTimeBase).remove(mCounter);
180        verifyNoMoreInteractions(mTimeBase);
181    }
182
183    @Test
184    public void testDetach() {
185        mCounter.detach();
186        verify(mTimeBase).remove(mCounter);
187        verifyNoMoreInteractions(mTimeBase);
188    }
189
190    private void updateCounts(long total, long current) {
191        mCounter.mCount = total;
192        mCounter.mCurrentCount = current;
193    }
194}
195