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1 /* | 1 /* |
2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
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79 EXPECT_FALSE(alr_detector_.GetApplicationLimitedRegionStartTime()); | 79 EXPECT_FALSE(alr_detector_.GetApplicationLimitedRegionStartTime()); |
80 | 80 |
81 // Stay in non-ALR state when usage is close to 100%. | 81 // Stay in non-ALR state when usage is close to 100%. |
82 SimulateOutgoingTrafficIn(&alr_detector_) | 82 SimulateOutgoingTrafficIn(&alr_detector_) |
83 .ForTimeMs(1000) | 83 .ForTimeMs(1000) |
84 .AtPercentOfEstimatedBitrate(90); | 84 .AtPercentOfEstimatedBitrate(90); |
85 EXPECT_FALSE(alr_detector_.GetApplicationLimitedRegionStartTime()); | 85 EXPECT_FALSE(alr_detector_.GetApplicationLimitedRegionStartTime()); |
86 | 86 |
87 // Verify that we ALR starts when bitrate drops below 20%. | 87 // Verify that we ALR starts when bitrate drops below 20%. |
88 SimulateOutgoingTrafficIn(&alr_detector_) | 88 SimulateOutgoingTrafficIn(&alr_detector_) |
89 .ForTimeMs(1000) | 89 .ForTimeMs(1500) |
90 .AtPercentOfEstimatedBitrate(20); | 90 .AtPercentOfEstimatedBitrate(20); |
91 EXPECT_TRUE(alr_detector_.GetApplicationLimitedRegionStartTime()); | 91 EXPECT_TRUE(alr_detector_.GetApplicationLimitedRegionStartTime()); |
92 | 92 |
93 // Verify that ALR ends when usage is above 65%. | 93 // Verify that ALR ends when usage is above 65%. |
94 SimulateOutgoingTrafficIn(&alr_detector_) | 94 SimulateOutgoingTrafficIn(&alr_detector_) |
95 .ForTimeMs(1000) | 95 .ForTimeMs(1000) |
96 .AtPercentOfEstimatedBitrate(100); | 96 .AtPercentOfEstimatedBitrate(100); |
97 EXPECT_FALSE(alr_detector_.GetApplicationLimitedRegionStartTime()); | 97 EXPECT_FALSE(alr_detector_.GetApplicationLimitedRegionStartTime()); |
98 } | 98 } |
99 | 99 |
100 TEST_F(AlrDetectorTest, ShortSpike) { | 100 TEST_F(AlrDetectorTest, ShortSpike) { |
101 // Start in non-ALR state. | 101 // Start in non-ALR state. |
102 EXPECT_FALSE(alr_detector_.GetApplicationLimitedRegionStartTime()); | 102 EXPECT_FALSE(alr_detector_.GetApplicationLimitedRegionStartTime()); |
103 | 103 |
104 // Verify that we ALR starts when bitrate drops below 20%. | 104 // Verify that we ALR starts when bitrate drops below 20%. |
105 SimulateOutgoingTrafficIn(&alr_detector_) | 105 SimulateOutgoingTrafficIn(&alr_detector_) |
106 .ForTimeMs(1000) | 106 .ForTimeMs(1000) |
107 .AtPercentOfEstimatedBitrate(20); | 107 .AtPercentOfEstimatedBitrate(20); |
108 EXPECT_TRUE(alr_detector_.GetApplicationLimitedRegionStartTime()); | 108 EXPECT_TRUE(alr_detector_.GetApplicationLimitedRegionStartTime()); |
109 | 109 |
110 // Verify that we stay in ALR region even after a short bitrate spike. | 110 // Verify that we stay in ALR region even after a short bitrate spike. |
111 SimulateOutgoingTrafficIn(&alr_detector_) | 111 SimulateOutgoingTrafficIn(&alr_detector_) |
112 .ForTimeMs(200) | 112 .ForTimeMs(100) |
113 .AtPercentOfEstimatedBitrate(150); | 113 .AtPercentOfEstimatedBitrate(150); |
114 EXPECT_TRUE(alr_detector_.GetApplicationLimitedRegionStartTime()); | 114 EXPECT_TRUE(alr_detector_.GetApplicationLimitedRegionStartTime()); |
115 | 115 |
116 // ALR ends when usage is above 65%. | 116 // ALR ends when usage is above 65%. |
117 SimulateOutgoingTrafficIn(&alr_detector_) | 117 SimulateOutgoingTrafficIn(&alr_detector_) |
118 .ForTimeMs(1000) | 118 .ForTimeMs(1000) |
119 .AtPercentOfEstimatedBitrate(100); | 119 .AtPercentOfEstimatedBitrate(100); |
120 EXPECT_FALSE(alr_detector_.GetApplicationLimitedRegionStartTime()); | 120 EXPECT_FALSE(alr_detector_.GetApplicationLimitedRegionStartTime()); |
121 } | 121 } |
122 | 122 |
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136 // to the BWE drop by initiating a new probe. | 136 // to the BWE drop by initiating a new probe. |
137 alr_detector_.SetEstimatedBitrate(kEstimatedBitrateBps / 5); | 137 alr_detector_.SetEstimatedBitrate(kEstimatedBitrateBps / 5); |
138 EXPECT_TRUE(alr_detector_.GetApplicationLimitedRegionStartTime()); | 138 EXPECT_TRUE(alr_detector_.GetApplicationLimitedRegionStartTime()); |
139 SimulateOutgoingTrafficIn(&alr_detector_) | 139 SimulateOutgoingTrafficIn(&alr_detector_) |
140 .ForTimeMs(1000) | 140 .ForTimeMs(1000) |
141 .AtPercentOfEstimatedBitrate(50); | 141 .AtPercentOfEstimatedBitrate(50); |
142 EXPECT_FALSE(alr_detector_.GetApplicationLimitedRegionStartTime()); | 142 EXPECT_FALSE(alr_detector_.GetApplicationLimitedRegionStartTime()); |
143 } | 143 } |
144 | 144 |
145 } // namespace webrtc | 145 } // namespace webrtc |
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