media/audio/audio_streams_tracker_unittest.cc - Issue 2655413004: Strip out stream counting from AudioRendererHost.

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Issue 2655413004: Strip out stream counting from AudioRendererHost. (Closed)

Patch Set: Add moar DCHECKs. Created 3 years, 10 months ago

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1 // Copyright 2015 The Chromium Authors. All rights reserved.

2 // Use of this source code is governed by a BSD-style license that can be

3 // found in the LICENSE file.

4

5 #include "media/audio/audio_streams_tracker.h"

6

7 #include <stddef.h>

8

9 #include "testing/gtest/include/gtest/gtest.h"

10

11 namespace media {

12

13 TEST(AudioStreamsTrackerTest, IncreaseAndDecreaseOnce) {

14 AudioStreamsTracker audio_streams_tracker;

15 const size_t kNumberOfOperations = 5;

16

17 // Increase count.

18 for (size_t i = 1; i <= kNumberOfOperations; ++i) {

19 audio_streams_tracker.IncreaseStreamCount();

20 EXPECT_EQ(i, audio_streams_tracker.current_stream_count_);

21 EXPECT_EQ(i, audio_streams_tracker.max_stream_count());

22 }

23

24 // Reset and check max count.

25 audio_streams_tracker.ResetMaxStreamCount();

26 EXPECT_EQ(kNumberOfOperations, audio_streams_tracker.max_stream_count());

27

28 // Decrease count.

29 for (size_t i = 1; i <= kNumberOfOperations; ++i) {

30 audio_streams_tracker.DecreaseStreamCount();

31 EXPECT_EQ(kNumberOfOperations - i,

32 audio_streams_tracker.current_stream_count_);

33 EXPECT_EQ(kNumberOfOperations, audio_streams_tracker.max_stream_count());

34 }

35

36 // Reset and check max count.

37 audio_streams_tracker.ResetMaxStreamCount();

38 EXPECT_EQ(0u, audio_streams_tracker.max_stream_count());

39 }

40

41 TEST(AudioStreamsTrackerTest, IncreaseAndDecreaseMultiple) {

42 AudioStreamsTracker audio_streams_tracker;

43 const size_t kNumberOfOperations = 5;

44

45 // Increase 2N (N = kNumberOfOperations).

46 for (size_t i = 1; i <= 2 * kNumberOfOperations; ++i) {

47 audio_streams_tracker.IncreaseStreamCount();

48 EXPECT_EQ(i, audio_streams_tracker.current_stream_count_);

49 EXPECT_EQ(i, audio_streams_tracker.max_stream_count());

50 }

51

52 // Decrease N.

53 for (size_t i = 1; i <= kNumberOfOperations; ++i) {

54 audio_streams_tracker.DecreaseStreamCount();

55 EXPECT_EQ(2 * kNumberOfOperations - i,

56 audio_streams_tracker.current_stream_count_);

57 EXPECT_EQ(2 * kNumberOfOperations,

58 audio_streams_tracker.max_stream_count());

59 }

60

61 // Reset and check max count.

62 audio_streams_tracker.ResetMaxStreamCount();

63 EXPECT_EQ(kNumberOfOperations, audio_streams_tracker.max_stream_count());

64

65 // Increase 2N.

66 for (size_t i = 1; i <= 2 * kNumberOfOperations; ++i) {

67 audio_streams_tracker.IncreaseStreamCount();

68 EXPECT_EQ(kNumberOfOperations + i,

69 audio_streams_tracker.current_stream_count_);

70 EXPECT_EQ(kNumberOfOperations + i,

71 audio_streams_tracker.max_stream_count());

72 }

73

74 // Decrease N.

75 for (size_t i = 1; i <= kNumberOfOperations; ++i) {

76 audio_streams_tracker.DecreaseStreamCount();

77 EXPECT_EQ(3 * kNumberOfOperations - i,

78 audio_streams_tracker.current_stream_count_);

79 EXPECT_EQ(3 * kNumberOfOperations,

80 audio_streams_tracker.max_stream_count());

81 }

82

83 // Reset and check max count.

84 audio_streams_tracker.ResetMaxStreamCount();

85 EXPECT_EQ(2 * kNumberOfOperations, audio_streams_tracker.max_stream_count());

86

87 // Decrease 2N.

88 for (size_t i = 1; i <= 2 * kNumberOfOperations; ++i) {

89 audio_streams_tracker.DecreaseStreamCount();

90 EXPECT_EQ(2 * kNumberOfOperations - i,

91 audio_streams_tracker.current_stream_count_);

92 EXPECT_EQ(2 * kNumberOfOperations,

93 audio_streams_tracker.max_stream_count());

94 }

95

96 // Reset and check max count.

97 audio_streams_tracker.ResetMaxStreamCount();

98 EXPECT_EQ(0u, audio_streams_tracker.max_stream_count());

99 }

100

101 } // namespace media

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