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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/logging.h" | 5 #include "base/logging.h" |
6 #include "base/memory/scoped_ptr.h" | 6 #include "base/memory/scoped_ptr.h" |
7 #include "net/quic/congestion_control/paced_sender.h" | 7 #include "net/quic/congestion_control/paced_sender.h" |
8 #include "net/quic/quic_protocol.h" | 8 #include "net/quic/quic_protocol.h" |
9 #include "net/quic/test_tools/mock_clock.h" | 9 #include "net/quic/test_tools/mock_clock.h" |
10 #include "testing/gmock/include/gmock/gmock.h" | 10 #include "testing/gmock/include/gmock/gmock.h" |
11 #include "testing/gtest/include/gtest/gtest.h" | 11 #include "testing/gtest/include/gtest/gtest.h" |
12 | 12 |
13 namespace net { | 13 namespace net { |
14 namespace test { | 14 namespace test { |
15 | 15 |
16 const int kHundredKBytesPerS = 100; | 16 const int kHundredKBytesPerS = 100; |
17 | 17 |
18 class PacedSenderTest : public ::testing::Test { | 18 class PacedSenderTest : public ::testing::Test { |
19 protected: | 19 protected: |
20 PacedSenderTest() | 20 PacedSenderTest() |
21 : zero_time_(QuicTime::Delta::Zero()), | 21 : zero_time_(QuicTime::Delta::Zero()), |
22 paced_sender_(new PacedSender( | 22 paced_sender_(new PacedSender( |
23 QuicBandwidth::FromKBytesPerSecond(kHundredKBytesPerS), | 23 QuicBandwidth::FromKBytesPerSecond(kHundredKBytesPerS), |
24 kDefaultMaxPacketSize)) { | 24 kDefaultMaxPacketSize)) {} |
25 } | |
26 | 25 |
27 const QuicTime::Delta zero_time_; | 26 const QuicTime::Delta zero_time_; |
28 MockClock clock_; | 27 MockClock clock_; |
29 scoped_ptr<PacedSender> paced_sender_; | 28 scoped_ptr<PacedSender> paced_sender_; |
30 }; | 29 }; |
31 | 30 |
32 TEST_F(PacedSenderTest, Basic) { | 31 TEST_F(PacedSenderTest, Basic) { |
33 paced_sender_->UpdateBandwidthEstimate(clock_.Now(), | 32 paced_sender_->UpdateBandwidthEstimate( |
| 33 clock_.Now(), |
34 QuicBandwidth::FromKBytesPerSecond(kHundredKBytesPerS * 10)); | 34 QuicBandwidth::FromKBytesPerSecond(kHundredKBytesPerS * 10)); |
35 EXPECT_TRUE(paced_sender_->TimeUntilSend(clock_.Now(), zero_time_).IsZero()); | 35 EXPECT_TRUE(paced_sender_->TimeUntilSend(clock_.Now(), zero_time_).IsZero()); |
36 paced_sender_->OnPacketSent(clock_.Now(), kDefaultMaxPacketSize); | 36 paced_sender_->OnPacketSent(clock_.Now(), kDefaultMaxPacketSize); |
37 EXPECT_TRUE(paced_sender_->TimeUntilSend(clock_.Now(), zero_time_).IsZero()); | 37 EXPECT_TRUE(paced_sender_->TimeUntilSend(clock_.Now(), zero_time_).IsZero()); |
38 paced_sender_->OnPacketSent(clock_.Now(), kDefaultMaxPacketSize); | 38 paced_sender_->OnPacketSent(clock_.Now(), kDefaultMaxPacketSize); |
39 EXPECT_EQ(static_cast<int64>(kDefaultMaxPacketSize * 2), | 39 EXPECT_EQ( |
40 paced_sender_->TimeUntilSend( | 40 static_cast<int64>(kDefaultMaxPacketSize * 2), |
41 clock_.Now(), zero_time_).ToMicroseconds()); | 41 paced_sender_->TimeUntilSend(clock_.Now(), zero_time_).ToMicroseconds()); |
42 clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(24)); | 42 clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(24)); |
43 EXPECT_TRUE(paced_sender_->TimeUntilSend(clock_.Now(), zero_time_).IsZero()); | 43 EXPECT_TRUE(paced_sender_->TimeUntilSend(clock_.Now(), zero_time_).IsZero()); |
44 } | 44 } |
45 | 45 |
46 TEST_F(PacedSenderTest, LowRate) { | 46 TEST_F(PacedSenderTest, LowRate) { |
47 paced_sender_->UpdateBandwidthEstimate(clock_.Now(), | 47 paced_sender_->UpdateBandwidthEstimate( |
48 QuicBandwidth::FromKBytesPerSecond(kHundredKBytesPerS)); | 48 clock_.Now(), QuicBandwidth::FromKBytesPerSecond(kHundredKBytesPerS)); |
49 EXPECT_TRUE(paced_sender_->TimeUntilSend(clock_.Now(), zero_time_).IsZero()); | 49 EXPECT_TRUE(paced_sender_->TimeUntilSend(clock_.Now(), zero_time_).IsZero()); |
50 paced_sender_->OnPacketSent(clock_.Now(), kDefaultMaxPacketSize); | 50 paced_sender_->OnPacketSent(clock_.Now(), kDefaultMaxPacketSize); |
51 EXPECT_TRUE(paced_sender_->TimeUntilSend(clock_.Now(), zero_time_).IsZero()); | 51 EXPECT_TRUE(paced_sender_->TimeUntilSend(clock_.Now(), zero_time_).IsZero()); |
52 paced_sender_->OnPacketSent(clock_.Now(), kDefaultMaxPacketSize); | 52 paced_sender_->OnPacketSent(clock_.Now(), kDefaultMaxPacketSize); |
53 EXPECT_EQ(static_cast<int64>(kDefaultMaxPacketSize * 20), | 53 EXPECT_EQ( |
54 paced_sender_->TimeUntilSend( | 54 static_cast<int64>(kDefaultMaxPacketSize * 20), |
55 clock_.Now(), zero_time_).ToMicroseconds()); | 55 paced_sender_->TimeUntilSend(clock_.Now(), zero_time_).ToMicroseconds()); |
56 clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(24)); | 56 clock_.AdvanceTime(QuicTime::Delta::FromMilliseconds(24)); |
57 EXPECT_TRUE(paced_sender_->TimeUntilSend(clock_.Now(), zero_time_).IsZero()); | 57 EXPECT_TRUE(paced_sender_->TimeUntilSend(clock_.Now(), zero_time_).IsZero()); |
58 } | 58 } |
59 | 59 |
60 TEST_F(PacedSenderTest, HighRate) { | 60 TEST_F(PacedSenderTest, HighRate) { |
61 QuicBandwidth bandwidth_estimate = QuicBandwidth::FromKBytesPerSecond( | 61 QuicBandwidth bandwidth_estimate = |
62 kHundredKBytesPerS * 100); | 62 QuicBandwidth::FromKBytesPerSecond(kHundredKBytesPerS * 100); |
63 paced_sender_->UpdateBandwidthEstimate(clock_.Now(), bandwidth_estimate); | 63 paced_sender_->UpdateBandwidthEstimate(clock_.Now(), bandwidth_estimate); |
64 EXPECT_TRUE(paced_sender_->TimeUntilSend(clock_.Now(), zero_time_).IsZero()); | 64 EXPECT_TRUE(paced_sender_->TimeUntilSend(clock_.Now(), zero_time_).IsZero()); |
65 for (int i = 0; i < 16; ++i) { | 65 for (int i = 0; i < 16; ++i) { |
66 paced_sender_->OnPacketSent(clock_.Now(), kDefaultMaxPacketSize); | 66 paced_sender_->OnPacketSent(clock_.Now(), kDefaultMaxPacketSize); |
67 EXPECT_TRUE(paced_sender_->TimeUntilSend( | 67 EXPECT_TRUE( |
68 clock_.Now(), zero_time_).IsZero()); | 68 paced_sender_->TimeUntilSend(clock_.Now(), zero_time_).IsZero()); |
69 } | 69 } |
70 paced_sender_->OnPacketSent(clock_.Now(), kDefaultMaxPacketSize); | 70 paced_sender_->OnPacketSent(clock_.Now(), kDefaultMaxPacketSize); |
71 EXPECT_EQ(2040, paced_sender_->TimeUntilSend( | 71 EXPECT_EQ( |
72 clock_.Now(), zero_time_).ToMicroseconds()); | 72 2040, |
| 73 paced_sender_->TimeUntilSend(clock_.Now(), zero_time_).ToMicroseconds()); |
73 clock_.AdvanceTime(QuicTime::Delta::FromMicroseconds(20400)); | 74 clock_.AdvanceTime(QuicTime::Delta::FromMicroseconds(20400)); |
74 EXPECT_TRUE(paced_sender_->TimeUntilSend(clock_.Now(), zero_time_).IsZero()); | 75 EXPECT_TRUE(paced_sender_->TimeUntilSend(clock_.Now(), zero_time_).IsZero()); |
75 } | 76 } |
76 | 77 |
77 } // namespace test | 78 } // namespace test |
78 } // namespace net | 79 } // namespace net |
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