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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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/quic_flow_controller.h" | 5 #include "net/quic/quic_flow_controller.h" |
| 6 | 6 |
| 7 #include "base/format_macros.h" | 7 #include "base/format_macros.h" |
| 8 #include "base/strings/stringprintf.h" | 8 #include "base/strings/stringprintf.h" |
| 9 #include "net/quic/quic_utils.h" | 9 #include "net/quic/quic_utils.h" |
| 10 #include "net/quic/test_tools/quic_connection_peer.h" | 10 #include "net/quic/test_tools/quic_connection_peer.h" |
| (...skipping 26 matching lines...) Expand all Loading... |
| 37 QuicByteCount send_window_; | 37 QuicByteCount send_window_; |
| 38 QuicByteCount receive_window_; | 38 QuicByteCount receive_window_; |
| 39 QuicByteCount max_receive_window_; | 39 QuicByteCount max_receive_window_; |
| 40 scoped_ptr<QuicFlowController> flow_controller_; | 40 scoped_ptr<QuicFlowController> flow_controller_; |
| 41 MockConnection connection_; | 41 MockConnection connection_; |
| 42 }; | 42 }; |
| 43 | 43 |
| 44 TEST_F(QuicFlowControllerTest, SendingBytes) { | 44 TEST_F(QuicFlowControllerTest, SendingBytes) { |
| 45 Initialize(); | 45 Initialize(); |
| 46 | 46 |
| 47 EXPECT_TRUE(flow_controller_->IsEnabled()); | |
| 48 EXPECT_FALSE(flow_controller_->IsBlocked()); | 47 EXPECT_FALSE(flow_controller_->IsBlocked()); |
| 49 EXPECT_FALSE(flow_controller_->FlowControlViolation()); | 48 EXPECT_FALSE(flow_controller_->FlowControlViolation()); |
| 50 EXPECT_EQ(send_window_, flow_controller_->SendWindowSize()); | 49 EXPECT_EQ(send_window_, flow_controller_->SendWindowSize()); |
| 51 | 50 |
| 52 // Send some bytes, but not enough to block. | 51 // Send some bytes, but not enough to block. |
| 53 flow_controller_->AddBytesSent(send_window_ / 2); | 52 flow_controller_->AddBytesSent(send_window_ / 2); |
| 54 EXPECT_FALSE(flow_controller_->IsBlocked()); | 53 EXPECT_FALSE(flow_controller_->IsBlocked()); |
| 55 EXPECT_EQ(send_window_ / 2, flow_controller_->SendWindowSize()); | 54 EXPECT_EQ(send_window_ / 2, flow_controller_->SendWindowSize()); |
| 56 | 55 |
| 57 // Send enough bytes to block. | 56 // Send enough bytes to block. |
| (...skipping 21 matching lines...) Expand all Loading... |
| 79 flow_controller_->AddBytesSent(send_window_ * 10), | 78 flow_controller_->AddBytesSent(send_window_ * 10), |
| 80 base::StringPrintf("Trying to send an extra %" PRIu64 " bytes", | 79 base::StringPrintf("Trying to send an extra %" PRIu64 " bytes", |
| 81 send_window_ * 10)); | 80 send_window_ * 10)); |
| 82 EXPECT_TRUE(flow_controller_->IsBlocked()); | 81 EXPECT_TRUE(flow_controller_->IsBlocked()); |
| 83 EXPECT_EQ(0u, flow_controller_->SendWindowSize()); | 82 EXPECT_EQ(0u, flow_controller_->SendWindowSize()); |
| 84 } | 83 } |
| 85 | 84 |
| 86 TEST_F(QuicFlowControllerTest, ReceivingBytes) { | 85 TEST_F(QuicFlowControllerTest, ReceivingBytes) { |
| 87 Initialize(); | 86 Initialize(); |
| 88 | 87 |
| 89 EXPECT_TRUE(flow_controller_->IsEnabled()); | |
| 90 EXPECT_FALSE(flow_controller_->IsBlocked()); | 88 EXPECT_FALSE(flow_controller_->IsBlocked()); |
| 91 EXPECT_FALSE(flow_controller_->FlowControlViolation()); | 89 EXPECT_FALSE(flow_controller_->FlowControlViolation()); |
| 92 EXPECT_EQ(kInitialSessionFlowControlWindowForTest, | 90 EXPECT_EQ(kInitialSessionFlowControlWindowForTest, |
| 93 QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get())); | 91 QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get())); |
| 94 | 92 |
| 95 // Receive some bytes, updating highest received offset, but not enough to | 93 // Receive some bytes, updating highest received offset, but not enough to |
| 96 // fill flow control receive window. | 94 // fill flow control receive window. |
| 97 EXPECT_TRUE( | 95 EXPECT_TRUE( |
| 98 flow_controller_->UpdateHighestReceivedOffset(1 + receive_window_ / 2)); | 96 flow_controller_->UpdateHighestReceivedOffset(1 + receive_window_ / 2)); |
| 99 EXPECT_FALSE(flow_controller_->FlowControlViolation()); | 97 EXPECT_FALSE(flow_controller_->FlowControlViolation()); |
| 100 EXPECT_EQ((receive_window_ / 2) - 1, | 98 EXPECT_EQ((receive_window_ / 2) - 1, |
| 101 QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get())); | 99 QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get())); |
| 102 | 100 |
| 103 // Consume enough bytes to send a WINDOW_UPDATE frame. | 101 // Consume enough bytes to send a WINDOW_UPDATE frame. |
| 104 EXPECT_CALL(connection_, SendWindowUpdate(stream_id_, ::testing::_)).Times(1); | 102 EXPECT_CALL(connection_, SendWindowUpdate(stream_id_, ::testing::_)).Times(1); |
| 105 | 103 |
| 106 flow_controller_->AddBytesConsumed(1 + receive_window_ / 2); | 104 flow_controller_->AddBytesConsumed(1 + receive_window_ / 2); |
| 107 | 105 |
| 108 // Result is that once again we have a fully open receive window. | 106 // Result is that once again we have a fully open receive window. |
| 109 EXPECT_FALSE(flow_controller_->FlowControlViolation()); | 107 EXPECT_FALSE(flow_controller_->FlowControlViolation()); |
| 110 EXPECT_EQ(kInitialSessionFlowControlWindowForTest, | 108 EXPECT_EQ(kInitialSessionFlowControlWindowForTest, |
| 111 QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get())); | 109 QuicFlowControllerPeer::ReceiveWindowSize(flow_controller_.get())); |
| 112 } | 110 } |
| 113 | 111 |
| 114 TEST_F(QuicFlowControllerTest, OnlySendBlockedFrameOncePerOffset) { | 112 TEST_F(QuicFlowControllerTest, OnlySendBlockedFrameOncePerOffset) { |
| 115 Initialize(); | 113 Initialize(); |
| 116 | 114 |
| 117 // Test that we don't send duplicate BLOCKED frames. We should only send one | 115 // Test that we don't send duplicate BLOCKED frames. We should only send one |
| 118 // BLOCKED frame at a given send window offset. | 116 // BLOCKED frame at a given send window offset. |
| 119 EXPECT_TRUE(flow_controller_->IsEnabled()); | |
| 120 EXPECT_FALSE(flow_controller_->IsBlocked()); | 117 EXPECT_FALSE(flow_controller_->IsBlocked()); |
| 121 EXPECT_FALSE(flow_controller_->FlowControlViolation()); | 118 EXPECT_FALSE(flow_controller_->FlowControlViolation()); |
| 122 EXPECT_EQ(send_window_, flow_controller_->SendWindowSize()); | 119 EXPECT_EQ(send_window_, flow_controller_->SendWindowSize()); |
| 123 | 120 |
| 124 // Send enough bytes to block. | 121 // Send enough bytes to block. |
| 125 flow_controller_->AddBytesSent(send_window_); | 122 flow_controller_->AddBytesSent(send_window_); |
| 126 EXPECT_TRUE(flow_controller_->IsBlocked()); | 123 EXPECT_TRUE(flow_controller_->IsBlocked()); |
| 127 EXPECT_EQ(0u, flow_controller_->SendWindowSize()); | 124 EXPECT_EQ(0u, flow_controller_->SendWindowSize()); |
| 128 | 125 |
| 129 // Expect that 2 BLOCKED frames should get sent in total. | 126 // Expect that 2 BLOCKED frames should get sent in total. |
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| 146 flow_controller_->AddBytesSent(send_window_); | 143 flow_controller_->AddBytesSent(send_window_); |
| 147 EXPECT_TRUE(flow_controller_->IsBlocked()); | 144 EXPECT_TRUE(flow_controller_->IsBlocked()); |
| 148 EXPECT_EQ(0u, flow_controller_->SendWindowSize()); | 145 EXPECT_EQ(0u, flow_controller_->SendWindowSize()); |
| 149 | 146 |
| 150 // BLOCKED frame should get sent as send offset has changed. | 147 // BLOCKED frame should get sent as send offset has changed. |
| 151 flow_controller_->MaybeSendBlocked(); | 148 flow_controller_->MaybeSendBlocked(); |
| 152 } | 149 } |
| 153 | 150 |
| 154 } // namespace test | 151 } // namespace test |
| 155 } // namespace net | 152 } // namespace net |
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