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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "net/quic/congestion_control/cubic.h" | 5 #include "net/quic/congestion_control/cubic.h" |
6 | 6 |
7 #include "base/basictypes.h" | |
8 #include "base/logging.h" | 7 #include "base/logging.h" |
9 #include "net/quic/quic_connection_stats.h" | 8 #include "net/quic/quic_connection_stats.h" |
10 #include "net/quic/test_tools/mock_clock.h" | 9 #include "net/quic/test_tools/mock_clock.h" |
11 #include "testing/gtest/include/gtest/gtest.h" | 10 #include "testing/gtest/include/gtest/gtest.h" |
12 | 11 |
13 namespace net { | 12 namespace net { |
14 namespace test { | 13 namespace test { |
15 | 14 |
16 const float kBeta = 0.7f; // Default Cubic backoff factor. | 15 const float kBeta = 0.7f; // Default Cubic backoff factor. |
17 const uint32 kNumConnections = 2; | 16 const uint32_t kNumConnections = 2; |
18 const float kNConnectionBeta = (kNumConnections - 1 + kBeta) / kNumConnections; | 17 const float kNConnectionBeta = (kNumConnections - 1 + kBeta) / kNumConnections; |
19 const float kNConnectionAlpha = 3 * kNumConnections * kNumConnections * | 18 const float kNConnectionAlpha = 3 * kNumConnections * kNumConnections * |
20 (1 - kNConnectionBeta) / (1 + kNConnectionBeta); | 19 (1 - kNConnectionBeta) / (1 + kNConnectionBeta); |
21 | 20 |
22 class CubicTest : public ::testing::Test { | 21 class CubicTest : public ::testing::Test { |
23 protected: | 22 protected: |
24 CubicTest() | 23 CubicTest() |
25 : one_ms_(QuicTime::Delta::FromMilliseconds(1)), | 24 : one_ms_(QuicTime::Delta::FromMilliseconds(1)), |
26 hundred_ms_(QuicTime::Delta::FromMilliseconds(100)), | 25 hundred_ms_(QuicTime::Delta::FromMilliseconds(100)), |
27 cubic_(&clock_) {} | 26 cubic_(&clock_) {} |
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137 for (int i = 0; i < 40; ++i) { | 136 for (int i = 0; i < 40; ++i) { |
138 clock_.AdvanceTime(hundred_ms_); | 137 clock_.AdvanceTime(hundred_ms_); |
139 current_cwnd = cubic_.CongestionWindowAfterAck(current_cwnd, rtt_min); | 138 current_cwnd = cubic_.CongestionWindowAfterAck(current_cwnd, rtt_min); |
140 } | 139 } |
141 expected_cwnd = 422; | 140 expected_cwnd = 422; |
142 EXPECT_EQ(expected_cwnd, current_cwnd); | 141 EXPECT_EQ(expected_cwnd, current_cwnd); |
143 } | 142 } |
144 | 143 |
145 } // namespace test | 144 } // namespace test |
146 } // namespace net | 145 } // namespace net |
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