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
|
/*
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "api/neteq/tick_timer.h"
#include <memory>
#include "test/gmock.h"
#include "test/gtest.h"
namespace webrtc {
// Verify that the default value for ms_per_tick is 10.
TEST(TickTimer, DefaultMsPerTick) {
TickTimer tt;
EXPECT_EQ(10, tt.ms_per_tick());
}
TEST(TickTimer, CustomMsPerTick) {
TickTimer tt(17);
EXPECT_EQ(17, tt.ms_per_tick());
}
TEST(TickTimer, Increment) {
TickTimer tt;
EXPECT_EQ(0u, tt.ticks());
tt.Increment();
EXPECT_EQ(1u, tt.ticks());
for (int i = 0; i < 17; ++i) {
tt.Increment();
}
EXPECT_EQ(18u, tt.ticks());
tt.Increment(17);
EXPECT_EQ(35u, tt.ticks());
}
TEST(TickTimer, WrapAround) {
TickTimer tt;
tt.Increment(UINT64_MAX);
EXPECT_EQ(UINT64_MAX, tt.ticks());
tt.Increment();
EXPECT_EQ(0u, tt.ticks());
}
TEST(TickTimer, Stopwatch) {
TickTimer tt;
// Increment it a "random" number of steps.
tt.Increment(17);
std::unique_ptr<TickTimer::Stopwatch> sw = tt.GetNewStopwatch();
ASSERT_TRUE(sw);
EXPECT_EQ(0u, sw->ElapsedTicks()); // Starts at zero.
EXPECT_EQ(0u, sw->ElapsedMs());
tt.Increment();
EXPECT_EQ(1u, sw->ElapsedTicks()); // Increases with the TickTimer.
EXPECT_EQ(10u, sw->ElapsedMs());
}
TEST(TickTimer, StopwatchWrapAround) {
TickTimer tt;
tt.Increment(UINT64_MAX);
std::unique_ptr<TickTimer::Stopwatch> sw = tt.GetNewStopwatch();
ASSERT_TRUE(sw);
tt.Increment();
EXPECT_EQ(0u, tt.ticks());
EXPECT_EQ(1u, sw->ElapsedTicks());
EXPECT_EQ(10u, sw->ElapsedMs());
tt.Increment();
EXPECT_EQ(1u, tt.ticks());
EXPECT_EQ(2u, sw->ElapsedTicks());
EXPECT_EQ(20u, sw->ElapsedMs());
}
TEST(TickTimer, StopwatchMsOverflow) {
TickTimer tt;
std::unique_ptr<TickTimer::Stopwatch> sw = tt.GetNewStopwatch();
ASSERT_TRUE(sw);
tt.Increment(UINT64_MAX / 10);
EXPECT_EQ(UINT64_MAX, sw->ElapsedMs());
tt.Increment();
EXPECT_EQ(UINT64_MAX, sw->ElapsedMs());
tt.Increment(UINT64_MAX - tt.ticks());
EXPECT_EQ(UINT64_MAX, tt.ticks());
EXPECT_EQ(UINT64_MAX, sw->ElapsedMs());
}
TEST(TickTimer, StopwatchWithCustomTicktime) {
const int kMsPerTick = 17;
TickTimer tt(kMsPerTick);
std::unique_ptr<TickTimer::Stopwatch> sw = tt.GetNewStopwatch();
ASSERT_TRUE(sw);
EXPECT_EQ(0u, sw->ElapsedMs());
tt.Increment();
EXPECT_EQ(static_cast<uint64_t>(kMsPerTick), sw->ElapsedMs());
}
TEST(TickTimer, Countdown) {
TickTimer tt;
// Increment it a "random" number of steps.
tt.Increment(4711);
std::unique_ptr<TickTimer::Countdown> cd = tt.GetNewCountdown(17);
ASSERT_TRUE(cd);
EXPECT_FALSE(cd->Finished());
tt.Increment();
EXPECT_FALSE(cd->Finished());
tt.Increment(16); // Total increment is now 17.
EXPECT_TRUE(cd->Finished());
// Further increments do not change the state.
tt.Increment();
EXPECT_TRUE(cd->Finished());
tt.Increment(1234);
EXPECT_TRUE(cd->Finished());
}
} // namespace webrtc
|
