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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 "base/basictypes.h" | 5 #include "base/basictypes.h" |
6 #include "base/logging.h" | 6 #include "base/logging.h" |
7 #include "net/quic/congestion_control/cubic.h" | 7 #include "net/quic/congestion_control/cubic.h" |
8 #include "net/quic/test_tools/mock_clock.h" | 8 #include "net/quic/test_tools/mock_clock.h" |
9 #include "testing/gtest/include/gtest/gtest.h" | 9 #include "testing/gtest/include/gtest/gtest.h" |
10 | 10 |
11 namespace net { | 11 namespace net { |
12 namespace test { | 12 namespace test { |
13 | 13 |
14 const float kBeta = static_cast<float>(0.7); // Default Cubic backoff factor. | 14 const float kBeta = 0.7f; // Default Cubic backoff factor. |
15 const uint32 kNumConnections = 2; | 15 const uint32 kNumConnections = 2; |
16 const float kNConnectionBeta = (kNumConnections - 1 + kBeta) / kNumConnections; | 16 const float kNConnectionBeta = (kNumConnections - 1 + kBeta) / kNumConnections; |
17 const float kNConnectionAlpha = 3 * kNumConnections * kNumConnections * | 17 const float kNConnectionAlpha = 3 * kNumConnections * kNumConnections * |
18 (1 - kNConnectionBeta) / (1 + kNConnectionBeta); | 18 (1 - kNConnectionBeta) / (1 + kNConnectionBeta); |
19 | 19 |
20 class CubicTest : public ::testing::Test { | 20 class CubicTest : public ::testing::Test { |
21 protected: | 21 protected: |
22 CubicTest() | 22 CubicTest() |
23 : one_ms_(QuicTime::Delta::FromMilliseconds(1)), | 23 : one_ms_(QuicTime::Delta::FromMilliseconds(1)), |
24 hundred_ms_(QuicTime::Delta::FromMilliseconds(100)), | 24 hundred_ms_(QuicTime::Delta::FromMilliseconds(100)), |
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103 for (int i = 0; i < 40 ; ++i) { | 103 for (int i = 0; i < 40 ; ++i) { |
104 clock_.AdvanceTime(hundred_ms_); | 104 clock_.AdvanceTime(hundred_ms_); |
105 current_cwnd = cubic_.CongestionWindowAfterAck(current_cwnd, rtt_min); | 105 current_cwnd = cubic_.CongestionWindowAfterAck(current_cwnd, rtt_min); |
106 } | 106 } |
107 expected_cwnd = 422; | 107 expected_cwnd = 422; |
108 EXPECT_EQ(expected_cwnd, current_cwnd); | 108 EXPECT_EQ(expected_cwnd, current_cwnd); |
109 } | 109 } |
110 | 110 |
111 } // namespace test | 111 } // namespace test |
112 } // namespace net | 112 } // namespace net |
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