1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/logging.h"
#include "base/test/simple_test_tick_clock.h"
#include "media/base/clock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace media {
class ClockTest : public ::testing::Test {
public:
ClockTest() : clock_(&test_tick_clock_) {}
protected:
void AdvanceSystemTime(base::TimeDelta delta) {
test_tick_clock_.Advance(delta);
}
base::SimpleTestTickClock test_tick_clock_;
Clock clock_;
base::TimeDelta time_elapsed_;
};
TEST_F(ClockTest, Created) {
const base::TimeDelta kExpected = base::TimeDelta::FromSeconds(0);
EXPECT_EQ(kExpected, clock_.Elapsed());
}
TEST_F(ClockTest, Play_NormalSpeed) {
const base::TimeDelta kZero;
const base::TimeDelta kTimeToAdvance = base::TimeDelta::FromSeconds(2);
EXPECT_EQ(kZero, clock_.Play());
AdvanceSystemTime(kTimeToAdvance);
EXPECT_EQ(kTimeToAdvance, clock_.Elapsed());
}
TEST_F(ClockTest, Play_DoubleSpeed) {
const base::TimeDelta kZero;
const base::TimeDelta kTimeToAdvance = base::TimeDelta::FromSeconds(5);
clock_.SetPlaybackRate(2.0f);
EXPECT_EQ(kZero, clock_.Play());
AdvanceSystemTime(kTimeToAdvance);
EXPECT_EQ(2 * kTimeToAdvance, clock_.Elapsed());
}
TEST_F(ClockTest, Play_HalfSpeed) {
const base::TimeDelta kZero;
const base::TimeDelta kTimeToAdvance = base::TimeDelta::FromSeconds(4);
clock_.SetPlaybackRate(0.5f);
EXPECT_EQ(kZero, clock_.Play());
AdvanceSystemTime(kTimeToAdvance);
EXPECT_EQ(kTimeToAdvance / 2, clock_.Elapsed());
}
TEST_F(ClockTest, Play_ZeroSpeed) {
// We'll play for 2 seconds at normal speed, 4 seconds at zero speed, and 8
// seconds at normal speed.
const base::TimeDelta kZero;
const base::TimeDelta kPlayDuration1 = base::TimeDelta::FromSeconds(2);
const base::TimeDelta kPlayDuration2 = base::TimeDelta::FromSeconds(4);
const base::TimeDelta kPlayDuration3 = base::TimeDelta::FromSeconds(8);
const base::TimeDelta kExpected = kPlayDuration1 + kPlayDuration3;
EXPECT_EQ(kZero, clock_.Play());
AdvanceSystemTime(kPlayDuration1);
clock_.SetPlaybackRate(0.0f);
AdvanceSystemTime(kPlayDuration2);
clock_.SetPlaybackRate(1.0f);
AdvanceSystemTime(kPlayDuration3);
EXPECT_EQ(kExpected, clock_.Elapsed());
}
TEST_F(ClockTest, Play_MultiSpeed) {
// We'll play for 2 seconds at half speed, 4 seconds at normal speed, and 8
// seconds at double speed.
const base::TimeDelta kZero;
const base::TimeDelta kPlayDuration1 = base::TimeDelta::FromSeconds(2);
const base::TimeDelta kPlayDuration2 = base::TimeDelta::FromSeconds(4);
const base::TimeDelta kPlayDuration3 = base::TimeDelta::FromSeconds(8);
const base::TimeDelta kExpected =
kPlayDuration1 / 2 + kPlayDuration2 + 2 * kPlayDuration3;
clock_.SetPlaybackRate(0.5f);
EXPECT_EQ(kZero, clock_.Play());
AdvanceSystemTime(kPlayDuration1);
clock_.SetPlaybackRate(1.0f);
AdvanceSystemTime(kPlayDuration2);
clock_.SetPlaybackRate(2.0f);
AdvanceSystemTime(kPlayDuration3);
EXPECT_EQ(kExpected, clock_.Elapsed());
}
TEST_F(ClockTest, Pause) {
const base::TimeDelta kZero;
const base::TimeDelta kPlayDuration = base::TimeDelta::FromSeconds(4);
const base::TimeDelta kPauseDuration = base::TimeDelta::FromSeconds(20);
const base::TimeDelta kExpectedFirstPause = kPlayDuration;
const base::TimeDelta kExpectedSecondPause = 2 * kPlayDuration;
// Play for 4 seconds.
EXPECT_EQ(kZero, clock_.Play());
AdvanceSystemTime(kPlayDuration);
// Pause for 20 seconds.
EXPECT_EQ(kExpectedFirstPause, clock_.Pause());
EXPECT_EQ(kExpectedFirstPause, clock_.Elapsed());
AdvanceSystemTime(kPauseDuration);
EXPECT_EQ(kExpectedFirstPause, clock_.Elapsed());
// Play again for 4 more seconds.
EXPECT_EQ(kExpectedFirstPause, clock_.Play());
AdvanceSystemTime(kPlayDuration);
EXPECT_EQ(kExpectedSecondPause, clock_.Pause());
EXPECT_EQ(kExpectedSecondPause, clock_.Elapsed());
}
TEST_F(ClockTest, SetTime_Paused) {
const base::TimeDelta kFirstTime = base::TimeDelta::FromSeconds(4);
const base::TimeDelta kSecondTime = base::TimeDelta::FromSeconds(16);
const base::TimeDelta kArbitraryMaxTime = base::TimeDelta::FromSeconds(100);
clock_.SetTime(kFirstTime, kArbitraryMaxTime);
EXPECT_EQ(kFirstTime, clock_.Elapsed());
clock_.SetTime(kSecondTime, kArbitraryMaxTime);
EXPECT_EQ(kSecondTime, clock_.Elapsed());
}
TEST_F(ClockTest, SetTime_Playing) {
// We'll play for 4 seconds, then set the time to 12, then play for 4 more
// seconds.
const base::TimeDelta kZero;
const base::TimeDelta kPlayDuration = base::TimeDelta::FromSeconds(4);
const base::TimeDelta kUpdatedTime = base::TimeDelta::FromSeconds(12);
const base::TimeDelta kArbitraryMaxTime = base::TimeDelta::FromSeconds(100);
const base::TimeDelta kExpected = kUpdatedTime + kPlayDuration;
EXPECT_EQ(kZero, clock_.Play());
AdvanceSystemTime(kPlayDuration);
clock_.SetTime(kUpdatedTime, kArbitraryMaxTime);
AdvanceSystemTime(kPlayDuration);
EXPECT_EQ(kExpected, clock_.Elapsed());
}
TEST_F(ClockTest, SetMaxTime) {
const base::TimeDelta kZero;
const base::TimeDelta kTimeInterval = base::TimeDelta::FromSeconds(4);
const base::TimeDelta kMaxTime = base::TimeDelta::FromSeconds(6);
EXPECT_EQ(kZero, clock_.Play());
clock_.SetMaxTime(kMaxTime);
AdvanceSystemTime(kTimeInterval);
EXPECT_EQ(kTimeInterval, clock_.Elapsed());
AdvanceSystemTime(kTimeInterval);
EXPECT_EQ(kMaxTime, clock_.Elapsed());
AdvanceSystemTime(kTimeInterval);
EXPECT_EQ(kMaxTime, clock_.Elapsed());
}
TEST_F(ClockTest, SetMaxTime_MultipleTimes) {
const base::TimeDelta kZero;
const base::TimeDelta kTimeInterval = base::TimeDelta::FromSeconds(4);
const base::TimeDelta kMaxTime0 = base::TimeDelta::FromSeconds(120);
const base::TimeDelta kMaxTime1 = base::TimeDelta::FromSeconds(6);
const base::TimeDelta kMaxTime2 = base::TimeDelta::FromSeconds(12);
EXPECT_EQ(kZero, clock_.Play());
clock_.SetMaxTime(kMaxTime0);
AdvanceSystemTime(kTimeInterval);
EXPECT_EQ(kTimeInterval, clock_.Elapsed());
clock_.SetMaxTime(kMaxTime1);
AdvanceSystemTime(kTimeInterval);
EXPECT_EQ(kMaxTime1, clock_.Elapsed());
AdvanceSystemTime(kTimeInterval);
EXPECT_EQ(kMaxTime1, clock_.Elapsed());
clock_.SetMaxTime(kMaxTime2);
EXPECT_EQ(kMaxTime1, clock_.Elapsed());
AdvanceSystemTime(kTimeInterval);
EXPECT_EQ(kMaxTime1 + kTimeInterval, clock_.Elapsed());
AdvanceSystemTime(kTimeInterval);
EXPECT_EQ(kMaxTime2, clock_.Elapsed());
}
} // namespace media
|
