forked from chromium/chromium
-
Notifications
You must be signed in to change notification settings - Fork 0
/
audio_streams_tracker_unittest.cc
101 lines (82 loc) · 3.42 KB
/
audio_streams_tracker_unittest.cc
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
// Copyright 2015 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 "media/audio/audio_streams_tracker.h"
#include <stddef.h>
#include "testing/gtest/include/gtest/gtest.h"
namespace media {
TEST(AudioStreamsTrackerTest, IncreaseAndDecreaseOnce) {
AudioStreamsTracker audio_streams_tracker;
const size_t kNumberOfOperations = 5;
// Increase count.
for (size_t i = 1; i <= kNumberOfOperations; ++i) {
audio_streams_tracker.IncreaseStreamCount();
EXPECT_EQ(i, audio_streams_tracker.current_stream_count_);
EXPECT_EQ(i, audio_streams_tracker.max_stream_count());
}
// Reset and check max count.
audio_streams_tracker.ResetMaxStreamCount();
EXPECT_EQ(kNumberOfOperations, audio_streams_tracker.max_stream_count());
// Decrease count.
for (size_t i = 1; i <= kNumberOfOperations; ++i) {
audio_streams_tracker.DecreaseStreamCount();
EXPECT_EQ(kNumberOfOperations - i,
audio_streams_tracker.current_stream_count_);
EXPECT_EQ(kNumberOfOperations, audio_streams_tracker.max_stream_count());
}
// Reset and check max count.
audio_streams_tracker.ResetMaxStreamCount();
EXPECT_EQ(0u, audio_streams_tracker.max_stream_count());
}
TEST(AudioStreamsTrackerTest, IncreaseAndDecreaseMultiple) {
AudioStreamsTracker audio_streams_tracker;
const size_t kNumberOfOperations = 5;
// Increase 2N (N = kNumberOfOperations).
for (size_t i = 1; i <= 2 * kNumberOfOperations; ++i) {
audio_streams_tracker.IncreaseStreamCount();
EXPECT_EQ(i, audio_streams_tracker.current_stream_count_);
EXPECT_EQ(i, audio_streams_tracker.max_stream_count());
}
// Decrease N.
for (size_t i = 1; i <= kNumberOfOperations; ++i) {
audio_streams_tracker.DecreaseStreamCount();
EXPECT_EQ(2 * kNumberOfOperations - i,
audio_streams_tracker.current_stream_count_);
EXPECT_EQ(2 * kNumberOfOperations,
audio_streams_tracker.max_stream_count());
}
// Reset and check max count.
audio_streams_tracker.ResetMaxStreamCount();
EXPECT_EQ(kNumberOfOperations, audio_streams_tracker.max_stream_count());
// Increase 2N.
for (size_t i = 1; i <= 2 * kNumberOfOperations; ++i) {
audio_streams_tracker.IncreaseStreamCount();
EXPECT_EQ(kNumberOfOperations + i,
audio_streams_tracker.current_stream_count_);
EXPECT_EQ(kNumberOfOperations + i,
audio_streams_tracker.max_stream_count());
}
// Decrease N.
for (size_t i = 1; i <= kNumberOfOperations; ++i) {
audio_streams_tracker.DecreaseStreamCount();
EXPECT_EQ(3 * kNumberOfOperations - i,
audio_streams_tracker.current_stream_count_);
EXPECT_EQ(3 * kNumberOfOperations,
audio_streams_tracker.max_stream_count());
}
// Reset and check max count.
audio_streams_tracker.ResetMaxStreamCount();
EXPECT_EQ(2 * kNumberOfOperations, audio_streams_tracker.max_stream_count());
// Decrease 2N.
for (size_t i = 1; i <= 2 * kNumberOfOperations; ++i) {
audio_streams_tracker.DecreaseStreamCount();
EXPECT_EQ(2 * kNumberOfOperations - i,
audio_streams_tracker.current_stream_count_);
EXPECT_EQ(2 * kNumberOfOperations,
audio_streams_tracker.max_stream_count());
}
// Reset and check max count.
audio_streams_tracker.ResetMaxStreamCount();
EXPECT_EQ(0u, audio_streams_tracker.max_stream_count());
}
} // namespace media