| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "net/quic/quic_data_stream.h" |
| |
| #include "net/quic/quic_ack_notifier.h" |
| #include "net/quic/quic_connection.h" |
| #include "net/quic/quic_flags.h" |
| #include "net/quic/quic_utils.h" |
| #include "net/quic/quic_write_blocked_list.h" |
| #include "net/quic/spdy_utils.h" |
| #include "net/quic/test_tools/quic_flow_controller_peer.h" |
| #include "net/quic/test_tools/quic_session_peer.h" |
| #include "net/quic/test_tools/quic_test_utils.h" |
| #include "net/quic/test_tools/reliable_quic_stream_peer.h" |
| #include "net/test/gtest_util.h" |
| #include "testing/gmock/include/gmock/gmock.h" |
| |
| using base::StringPiece; |
| using std::min; |
| using testing::AnyNumber; |
| using testing::InSequence; |
| using testing::Return; |
| using testing::SaveArg; |
| using testing::StrictMock; |
| using testing::_; |
| |
| namespace net { |
| namespace test { |
| namespace { |
| |
| const bool kIsServer = true; |
| const bool kShouldProcessData = true; |
| |
| class TestStream : public QuicDataStream { |
| public: |
| TestStream(QuicStreamId id, |
| QuicSession* session, |
| bool should_process_data) |
| : QuicDataStream(id, session), |
| should_process_data_(should_process_data) {} |
| |
| virtual uint32 ProcessData(const char* data, uint32 data_len) OVERRIDE { |
| EXPECT_NE(0u, data_len); |
| DVLOG(1) << "ProcessData data_len: " << data_len; |
| data_ += string(data, data_len); |
| return should_process_data_ ? data_len : 0; |
| } |
| |
| using ReliableQuicStream::WriteOrBufferData; |
| using ReliableQuicStream::CloseReadSide; |
| using ReliableQuicStream::CloseWriteSide; |
| |
| const string& data() const { return data_; } |
| |
| private: |
| bool should_process_data_; |
| string data_; |
| }; |
| |
| class QuicDataStreamTest : public ::testing::TestWithParam<QuicVersion> { |
| public: |
| QuicDataStreamTest() { |
| headers_[":host"] = "www.google.com"; |
| headers_[":path"] = "/index.hml"; |
| headers_[":scheme"] = "https"; |
| headers_["cookie"] = |
| "__utma=208381060.1228362404.1372200928.1372200928.1372200928.1; " |
| "__utmc=160408618; " |
| "GX=DQAAAOEAAACWJYdewdE9rIrW6qw3PtVi2-d729qaa-74KqOsM1NVQblK4VhX" |
| "hoALMsy6HOdDad2Sz0flUByv7etmo3mLMidGrBoljqO9hSVA40SLqpG_iuKKSHX" |
| "RW3Np4bq0F0SDGDNsW0DSmTS9ufMRrlpARJDS7qAI6M3bghqJp4eABKZiRqebHT" |
| "pMU-RXvTI5D5oCF1vYxYofH_l1Kviuiy3oQ1kS1enqWgbhJ2t61_SNdv-1XJIS0" |
| "O3YeHLmVCs62O6zp89QwakfAWK9d3IDQvVSJzCQsvxvNIvaZFa567MawWlXg0Rh" |
| "1zFMi5vzcns38-8_Sns; " |
| "GA=v*2%2Fmem*57968640*47239936%2Fmem*57968640*47114716%2Fno-nm-" |
| "yj*15%2Fno-cc-yj*5%2Fpc-ch*133685%2Fpc-s-cr*133947%2Fpc-s-t*1339" |
| "47%2Fno-nm-yj*4%2Fno-cc-yj*1%2Fceft-as*1%2Fceft-nqas*0%2Fad-ra-c" |
| "v_p%2Fad-nr-cv_p-f*1%2Fad-v-cv_p*859%2Fad-ns-cv_p-f*1%2Ffn-v-ad%" |
| "2Fpc-t*250%2Fpc-cm*461%2Fpc-s-cr*722%2Fpc-s-t*722%2Fau_p*4" |
| "SICAID=AJKiYcHdKgxum7KMXG0ei2t1-W4OD1uW-ecNsCqC0wDuAXiDGIcT_HA2o1" |
| "3Rs1UKCuBAF9g8rWNOFbxt8PSNSHFuIhOo2t6bJAVpCsMU5Laa6lewuTMYI8MzdQP" |
| "ARHKyW-koxuhMZHUnGBJAM1gJODe0cATO_KGoX4pbbFxxJ5IicRxOrWK_5rU3cdy6" |
| "edlR9FsEdH6iujMcHkbE5l18ehJDwTWmBKBzVD87naobhMMrF6VvnDGxQVGp9Ir_b" |
| "Rgj3RWUoPumQVCxtSOBdX0GlJOEcDTNCzQIm9BSfetog_eP_TfYubKudt5eMsXmN6" |
| "QnyXHeGeK2UINUzJ-D30AFcpqYgH9_1BvYSpi7fc7_ydBU8TaD8ZRxvtnzXqj0RfG" |
| "tuHghmv3aD-uzSYJ75XDdzKdizZ86IG6Fbn1XFhYZM-fbHhm3mVEXnyRW4ZuNOLFk" |
| "Fas6LMcVC6Q8QLlHYbXBpdNFuGbuZGUnav5C-2I_-46lL0NGg3GewxGKGHvHEfoyn" |
| "EFFlEYHsBQ98rXImL8ySDycdLEFvBPdtctPmWCfTxwmoSMLHU2SCVDhbqMWU5b0yr" |
| "JBCScs_ejbKaqBDoB7ZGxTvqlrB__2ZmnHHjCr8RgMRtKNtIeuZAo "; |
| } |
| |
| void Initialize(bool stream_should_process_data) { |
| connection_ = new testing::StrictMock<MockConnection>( |
| kIsServer, SupportedVersions(GetParam())); |
| session_.reset(new testing::StrictMock<MockSession>(connection_)); |
| stream_.reset(new TestStream(kClientDataStreamId1, session_.get(), |
| stream_should_process_data)); |
| stream2_.reset(new TestStream(kClientDataStreamId2, session_.get(), |
| stream_should_process_data)); |
| write_blocked_list_ = |
| QuicSessionPeer::GetWriteBlockedStreams(session_.get()); |
| } |
| |
| protected: |
| MockConnection* connection_; |
| scoped_ptr<MockSession> session_; |
| scoped_ptr<TestStream> stream_; |
| scoped_ptr<TestStream> stream2_; |
| SpdyHeaderBlock headers_; |
| QuicWriteBlockedList* write_blocked_list_; |
| }; |
| |
| INSTANTIATE_TEST_CASE_P(Tests, QuicDataStreamTest, |
| ::testing::ValuesIn(QuicSupportedVersions())); |
| |
| TEST_P(QuicDataStreamTest, ProcessHeaders) { |
| Initialize(kShouldProcessData); |
| |
| string headers = SpdyUtils::SerializeUncompressedHeaders(headers_); |
| stream_->OnStreamHeadersPriority(QuicUtils::HighestPriority()); |
| stream_->OnStreamHeaders(headers); |
| EXPECT_EQ(headers, stream_->data()); |
| stream_->OnStreamHeadersComplete(false, headers.size()); |
| EXPECT_EQ(QuicUtils::HighestPriority(), stream_->EffectivePriority()); |
| EXPECT_EQ(headers, stream_->data()); |
| EXPECT_FALSE(stream_->IsDoneReading()); |
| } |
| |
| TEST_P(QuicDataStreamTest, ProcessHeadersAndBody) { |
| Initialize(kShouldProcessData); |
| |
| string headers = SpdyUtils::SerializeUncompressedHeaders(headers_); |
| string body = "this is the body"; |
| |
| stream_->OnStreamHeaders(headers); |
| EXPECT_EQ(headers, stream_->data()); |
| stream_->OnStreamHeadersComplete(false, headers.size()); |
| QuicStreamFrame frame(kClientDataStreamId1, false, 0, MakeIOVector(body)); |
| stream_->OnStreamFrame(frame); |
| |
| EXPECT_EQ(headers + body, stream_->data()); |
| } |
| |
| TEST_P(QuicDataStreamTest, ProcessHeadersAndBodyFragments) { |
| string headers = SpdyUtils::SerializeUncompressedHeaders(headers_); |
| string body = "this is the body"; |
| |
| for (size_t fragment_size = 1; fragment_size < body.size(); |
| ++fragment_size) { |
| Initialize(kShouldProcessData); |
| for (size_t offset = 0; offset < headers.size(); |
| offset += fragment_size) { |
| size_t remaining_data = headers.size() - offset; |
| StringPiece fragment(headers.data() + offset, |
| min(fragment_size, remaining_data)); |
| stream_->OnStreamHeaders(fragment); |
| } |
| stream_->OnStreamHeadersComplete(false, headers.size()); |
| for (size_t offset = 0; offset < body.size(); offset += fragment_size) { |
| size_t remaining_data = body.size() - offset; |
| StringPiece fragment(body.data() + offset, |
| min(fragment_size, remaining_data)); |
| QuicStreamFrame frame(kClientDataStreamId1, false, offset, |
| MakeIOVector(fragment)); |
| stream_->OnStreamFrame(frame); |
| } |
| ASSERT_EQ(headers + body, |
| stream_->data()) << "fragment_size: " << fragment_size; |
| } |
| } |
| |
| TEST_P(QuicDataStreamTest, ProcessHeadersAndBodyFragmentsSplit) { |
| string headers = SpdyUtils::SerializeUncompressedHeaders(headers_); |
| string body = "this is the body"; |
| |
| for (size_t split_point = 1; split_point < body.size() - 1; ++split_point) { |
| Initialize(kShouldProcessData); |
| StringPiece headers1(headers.data(), split_point); |
| stream_->OnStreamHeaders(headers1); |
| |
| StringPiece headers2(headers.data() + split_point, |
| headers.size() - split_point); |
| stream_->OnStreamHeaders(headers2); |
| stream_->OnStreamHeadersComplete(false, headers.size()); |
| |
| StringPiece fragment1(body.data(), split_point); |
| QuicStreamFrame frame1(kClientDataStreamId1, false, 0, |
| MakeIOVector(fragment1)); |
| stream_->OnStreamFrame(frame1); |
| |
| StringPiece fragment2(body.data() + split_point, |
| body.size() - split_point); |
| QuicStreamFrame frame2(kClientDataStreamId1, false, split_point, |
| MakeIOVector(fragment2)); |
| stream_->OnStreamFrame(frame2); |
| |
| ASSERT_EQ(headers + body, |
| stream_->data()) << "split_point: " << split_point; |
| } |
| } |
| |
| TEST_P(QuicDataStreamTest, ProcessHeadersAndBodyReadv) { |
| Initialize(!kShouldProcessData); |
| |
| string headers = SpdyUtils::SerializeUncompressedHeaders(headers_); |
| string body = "this is the body"; |
| |
| stream_->OnStreamHeaders(headers); |
| EXPECT_EQ(headers, stream_->data()); |
| stream_->OnStreamHeadersComplete(false, headers.size()); |
| QuicStreamFrame frame(kClientDataStreamId1, false, 0, MakeIOVector(body)); |
| stream_->OnStreamFrame(frame); |
| |
| char buffer[2048]; |
| ASSERT_LT(headers.length() + body.length(), arraysize(buffer)); |
| struct iovec vec; |
| vec.iov_base = buffer; |
| vec.iov_len = arraysize(buffer); |
| |
| size_t bytes_read = stream_->Readv(&vec, 1); |
| EXPECT_EQ(headers.length(), bytes_read); |
| EXPECT_EQ(headers, string(buffer, bytes_read)); |
| |
| bytes_read = stream_->Readv(&vec, 1); |
| EXPECT_EQ(body.length(), bytes_read); |
| EXPECT_EQ(body, string(buffer, bytes_read)); |
| } |
| |
| TEST_P(QuicDataStreamTest, ProcessHeadersAndBodyIncrementalReadv) { |
| Initialize(!kShouldProcessData); |
| |
| string headers = SpdyUtils::SerializeUncompressedHeaders(headers_); |
| string body = "this is the body"; |
| stream_->OnStreamHeaders(headers); |
| EXPECT_EQ(headers, stream_->data()); |
| stream_->OnStreamHeadersComplete(false, headers.size()); |
| QuicStreamFrame frame(kClientDataStreamId1, false, 0, MakeIOVector(body)); |
| stream_->OnStreamFrame(frame); |
| |
| char buffer[1]; |
| struct iovec vec; |
| vec.iov_base = buffer; |
| vec.iov_len = arraysize(buffer); |
| |
| string data = headers + body; |
| for (size_t i = 0; i < data.length(); ++i) { |
| size_t bytes_read = stream_->Readv(&vec, 1); |
| ASSERT_EQ(1u, bytes_read); |
| EXPECT_EQ(data.data()[i], buffer[0]); |
| } |
| } |
| |
| TEST_P(QuicDataStreamTest, ProcessHeadersUsingReadvWithMultipleIovecs) { |
| Initialize(!kShouldProcessData); |
| |
| string headers = SpdyUtils::SerializeUncompressedHeaders(headers_); |
| string body = "this is the body"; |
| stream_->OnStreamHeaders(headers); |
| EXPECT_EQ(headers, stream_->data()); |
| stream_->OnStreamHeadersComplete(false, headers.size()); |
| QuicStreamFrame frame(kClientDataStreamId1, false, 0, MakeIOVector(body)); |
| stream_->OnStreamFrame(frame); |
| |
| char buffer1[1]; |
| char buffer2[1]; |
| struct iovec vec[2]; |
| vec[0].iov_base = buffer1; |
| vec[0].iov_len = arraysize(buffer1); |
| vec[1].iov_base = buffer2; |
| vec[1].iov_len = arraysize(buffer2); |
| string data = headers + body; |
| for (size_t i = 0; i < data.length(); i += 2) { |
| size_t bytes_read = stream_->Readv(vec, 2); |
| ASSERT_EQ(2u, bytes_read) << i; |
| ASSERT_EQ(data.data()[i], buffer1[0]) << i; |
| ASSERT_EQ(data.data()[i + 1], buffer2[0]) << i; |
| } |
| } |
| |
| TEST_P(QuicDataStreamTest, StreamFlowControlBlocked) { |
| // Tests that we send a BLOCKED frame to the peer when we attempt to write, |
| // but are flow control blocked. |
| if (GetParam() < QUIC_VERSION_17) { |
| return; |
| } |
| ValueRestore<bool> old_flag(&FLAGS_enable_quic_stream_flow_control_2, true); |
| |
| Initialize(kShouldProcessData); |
| |
| // Set a small flow control limit. |
| const uint64 kWindow = 36; |
| QuicFlowControllerPeer::SetSendWindowOffset(stream_->flow_controller(), |
| kWindow); |
| EXPECT_EQ(kWindow, QuicFlowControllerPeer::SendWindowOffset( |
| stream_->flow_controller())); |
| |
| // Try to send more data than the flow control limit allows. |
| string headers = SpdyUtils::SerializeUncompressedHeaders(headers_); |
| string body; |
| const uint64 kOverflow = 15; |
| GenerateBody(&body, kWindow + kOverflow); |
| |
| EXPECT_CALL(*connection_, SendBlocked(kClientDataStreamId1)); |
| EXPECT_CALL(*session_, WritevData(kClientDataStreamId1, _, _, _, _, _)) |
| .WillOnce(Return(QuicConsumedData(kWindow, true))); |
| stream_->WriteOrBufferData(body, false, NULL); |
| |
| // Should have sent as much as possible, resulting in no send window left. |
| EXPECT_EQ(0u, |
| QuicFlowControllerPeer::SendWindowSize(stream_->flow_controller())); |
| |
| // And we should have queued the overflowed data. |
| EXPECT_EQ(kOverflow, |
| ReliableQuicStreamPeer::SizeOfQueuedData(stream_.get())); |
| } |
| |
| TEST_P(QuicDataStreamTest, StreamFlowControlNoWindowUpdateIfNotConsumed) { |
| // The flow control receive window decreases whenever we add new bytes to the |
| // sequencer, whether they are consumed immediately or buffered. However we |
| // only send WINDOW_UPDATE frames based on increasing number of bytes |
| // consumed. |
| if (GetParam() < QUIC_VERSION_17) { |
| return; |
| } |
| ValueRestore<bool> old_flag(&FLAGS_enable_quic_stream_flow_control_2, true); |
| |
| // Don't process data - it will be buffered instead. |
| Initialize(!kShouldProcessData); |
| |
| // Expect no WINDOW_UPDATE frames to be sent. |
| EXPECT_CALL(*connection_, SendWindowUpdate(_, _)).Times(0); |
| |
| // Set a small flow control receive window. |
| const uint64 kWindow = 36; |
| QuicFlowControllerPeer::SetReceiveWindowOffset(stream_->flow_controller(), |
| kWindow); |
| QuicFlowControllerPeer::SetMaxReceiveWindow(stream_->flow_controller(), |
| kWindow); |
| EXPECT_EQ(kWindow, QuicFlowControllerPeer::ReceiveWindowOffset( |
| stream_->flow_controller())); |
| |
| // Stream receives enough data to fill a fraction of the receive window. |
| string headers = SpdyUtils::SerializeUncompressedHeaders(headers_); |
| string body; |
| GenerateBody(&body, kWindow / 3); |
| stream_->OnStreamHeaders(headers); |
| EXPECT_EQ(headers, stream_->data()); |
| stream_->OnStreamHeadersComplete(false, headers.size()); |
| |
| QuicStreamFrame frame1(kClientDataStreamId1, false, 0, MakeIOVector(body)); |
| stream_->OnStreamFrame(frame1); |
| EXPECT_EQ(kWindow - (kWindow / 3), QuicFlowControllerPeer::ReceiveWindowSize( |
| stream_->flow_controller())); |
| |
| // Now receive another frame which results in the receive window being over |
| // half full. This should all be buffered, decreasing the receive window but |
| // not sending WINDOW_UPDATE. |
| QuicStreamFrame frame2(kClientDataStreamId1, false, kWindow / 3, |
| MakeIOVector(body)); |
| stream_->OnStreamFrame(frame2); |
| EXPECT_EQ( |
| kWindow - (2 * kWindow / 3), |
| QuicFlowControllerPeer::ReceiveWindowSize(stream_->flow_controller())); |
| } |
| |
| TEST_P(QuicDataStreamTest, StreamFlowControlWindowUpdate) { |
| // Tests that on receipt of data, the stream updates its receive window offset |
| // appropriately, and sends WINDOW_UPDATE frames when its receive window drops |
| // too low. |
| if (GetParam() < QUIC_VERSION_17) { |
| return; |
| } |
| ValueRestore<bool> old_flag(&FLAGS_enable_quic_stream_flow_control_2, true); |
| |
| Initialize(kShouldProcessData); |
| |
| // Set a small flow control limit. |
| const uint64 kWindow = 36; |
| QuicFlowControllerPeer::SetReceiveWindowOffset(stream_->flow_controller(), |
| kWindow); |
| QuicFlowControllerPeer::SetMaxReceiveWindow(stream_->flow_controller(), |
| kWindow); |
| EXPECT_EQ(kWindow, QuicFlowControllerPeer::ReceiveWindowOffset( |
| stream_->flow_controller())); |
| |
| // Stream receives enough data to fill a fraction of the receive window. |
| string headers = SpdyUtils::SerializeUncompressedHeaders(headers_); |
| string body; |
| GenerateBody(&body, kWindow / 3); |
| stream_->OnStreamHeaders(headers); |
| EXPECT_EQ(headers, stream_->data()); |
| stream_->OnStreamHeadersComplete(false, headers.size()); |
| |
| QuicStreamFrame frame1(kClientDataStreamId1, false, 0, MakeIOVector(body)); |
| stream_->OnStreamFrame(frame1); |
| EXPECT_EQ(kWindow - (kWindow / 3), QuicFlowControllerPeer::ReceiveWindowSize( |
| stream_->flow_controller())); |
| |
| // Now receive another frame which results in the receive window being over |
| // half full. This will trigger the stream to increase its receive window |
| // offset and send a WINDOW_UPDATE. The result will be again an available |
| // window of kWindow bytes. |
| QuicStreamFrame frame2(kClientDataStreamId1, false, kWindow / 3, |
| MakeIOVector(body)); |
| EXPECT_CALL(*connection_, |
| SendWindowUpdate(kClientDataStreamId1, |
| QuicFlowControllerPeer::ReceiveWindowOffset( |
| stream_->flow_controller()) + |
| 2 * kWindow / 3)); |
| stream_->OnStreamFrame(frame2); |
| EXPECT_EQ(kWindow, QuicFlowControllerPeer::ReceiveWindowSize( |
| stream_->flow_controller())); |
| } |
| |
| TEST_P(QuicDataStreamTest, ConnectionFlowControlWindowUpdate) { |
| // Tests that on receipt of data, the connection updates its receive window |
| // offset appropriately, and sends WINDOW_UPDATE frames when its receive |
| // window drops too low. |
| if (GetParam() < QUIC_VERSION_19) { |
| return; |
| } |
| ValueRestore<bool> old_flag2(&FLAGS_enable_quic_stream_flow_control_2, true); |
| ValueRestore<bool> old_flag(&FLAGS_enable_quic_connection_flow_control_2, |
| true); |
| |
| Initialize(kShouldProcessData); |
| |
| // Set a small flow control limit for streams and connection. |
| const uint64 kWindow = 36; |
| QuicFlowControllerPeer::SetReceiveWindowOffset(stream_->flow_controller(), |
| kWindow); |
| QuicFlowControllerPeer::SetMaxReceiveWindow(stream_->flow_controller(), |
| kWindow); |
| QuicFlowControllerPeer::SetReceiveWindowOffset(stream2_->flow_controller(), |
| kWindow); |
| QuicFlowControllerPeer::SetMaxReceiveWindow(stream2_->flow_controller(), |
| kWindow); |
| QuicFlowControllerPeer::SetReceiveWindowOffset(session_->flow_controller(), |
| kWindow); |
| QuicFlowControllerPeer::SetMaxReceiveWindow(session_->flow_controller(), |
| kWindow); |
| |
| // Supply headers to both streams so that they are happy to receive data. |
| string headers = SpdyUtils::SerializeUncompressedHeaders(headers_); |
| stream_->OnStreamHeaders(headers); |
| stream_->OnStreamHeadersComplete(false, headers.size()); |
| stream2_->OnStreamHeaders(headers); |
| stream2_->OnStreamHeadersComplete(false, headers.size()); |
| |
| // Each stream gets a quarter window of data. This should not trigger a |
| // WINDOW_UPDATE for either stream, nor for the connection. |
| string body; |
| GenerateBody(&body, kWindow / 4); |
| QuicStreamFrame frame1(kClientDataStreamId1, false, 0, MakeIOVector(body)); |
| stream_->OnStreamFrame(frame1); |
| QuicStreamFrame frame2(kClientDataStreamId2, false, 0, MakeIOVector(body)); |
| stream2_->OnStreamFrame(frame2); |
| |
| // Now receive a further single byte on one stream - again this does not |
| // trigger a stream WINDOW_UPDATE, but now the connection flow control window |
| // is over half full and thus a connection WINDOW_UPDATE is sent. |
| EXPECT_CALL(*connection_, SendWindowUpdate(kClientDataStreamId1, _)).Times(0); |
| EXPECT_CALL(*connection_, SendWindowUpdate(kClientDataStreamId2, _)).Times(0); |
| EXPECT_CALL(*connection_, |
| SendWindowUpdate(0, QuicFlowControllerPeer::ReceiveWindowOffset( |
| session_->flow_controller()) + |
| 1 + kWindow / 2)); |
| QuicStreamFrame frame3(kClientDataStreamId1, false, (kWindow / 4), |
| MakeIOVector("a")); |
| stream_->OnStreamFrame(frame3); |
| } |
| |
| TEST_P(QuicDataStreamTest, StreamFlowControlViolation) { |
| // Tests that on if the peer sends too much data (i.e. violates the flow |
| // control protocol), then we terminate the connection. |
| if (GetParam() < QUIC_VERSION_17) { |
| return; |
| } |
| ValueRestore<bool> old_flag(&FLAGS_enable_quic_stream_flow_control_2, true); |
| |
| // Stream should not process data, so that data gets buffered in the |
| // sequencer, triggering flow control limits. |
| Initialize(!kShouldProcessData); |
| |
| // Set a small flow control limit. |
| const uint64 kWindow = 50; |
| QuicFlowControllerPeer::SetReceiveWindowOffset(stream_->flow_controller(), |
| kWindow); |
| |
| string headers = SpdyUtils::SerializeUncompressedHeaders(headers_); |
| stream_->OnStreamHeaders(headers); |
| EXPECT_EQ(headers, stream_->data()); |
| stream_->OnStreamHeadersComplete(false, headers.size()); |
| |
| // Receive data to overflow the window, violating flow control. |
| string body; |
| GenerateBody(&body, kWindow + 1); |
| QuicStreamFrame frame(kClientDataStreamId1, false, 0, MakeIOVector(body)); |
| EXPECT_CALL(*connection_, |
| SendConnectionClose(QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA)); |
| stream_->OnStreamFrame(frame); |
| } |
| |
| TEST_P(QuicDataStreamTest, ConnectionFlowControlViolation) { |
| // Tests that on if the peer sends too much data (i.e. violates the flow |
| // control protocol), at the connection level (rather than the stream level) |
| // then we terminate the connection. |
| if (GetParam() < QUIC_VERSION_19) { |
| return; |
| } |
| ValueRestore<bool> old_flag2(&FLAGS_enable_quic_stream_flow_control_2, true); |
| ValueRestore<bool> old_flag(&FLAGS_enable_quic_connection_flow_control_2, |
| true); |
| |
| // Stream should not process data, so that data gets buffered in the |
| // sequencer, triggering flow control limits. |
| Initialize(!kShouldProcessData); |
| |
| // Set a small flow control window on streams, and connection. |
| const uint64 kStreamWindow = 50; |
| const uint64 kConnectionWindow = 10; |
| QuicFlowControllerPeer::SetReceiveWindowOffset(stream_->flow_controller(), |
| kStreamWindow); |
| QuicFlowControllerPeer::SetReceiveWindowOffset(session_->flow_controller(), |
| kConnectionWindow); |
| |
| string headers = SpdyUtils::SerializeUncompressedHeaders(headers_); |
| stream_->OnStreamHeaders(headers); |
| EXPECT_EQ(headers, stream_->data()); |
| stream_->OnStreamHeadersComplete(false, headers.size()); |
| |
| // Send enough data to overflow the connection level flow control window. |
| string body; |
| GenerateBody(&body, kConnectionWindow + 1); |
| EXPECT_LT(body.size(), kStreamWindow); |
| QuicStreamFrame frame(kClientDataStreamId1, false, 0, MakeIOVector(body)); |
| |
| EXPECT_CALL(*connection_, |
| SendConnectionClose(QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA)); |
| stream_->OnStreamFrame(frame); |
| } |
| |
| TEST_P(QuicDataStreamTest, StreamFlowControlFinNotBlocked) { |
| // An attempt to write a FIN with no data should not be flow control blocked, |
| // even if the send window is 0. |
| if (GetParam() < QUIC_VERSION_17) { |
| return; |
| } |
| ValueRestore<bool> old_flag(&FLAGS_enable_quic_stream_flow_control_2, true); |
| |
| Initialize(kShouldProcessData); |
| |
| // Set a flow control limit of zero. |
| QuicFlowControllerPeer::SetReceiveWindowOffset(stream_->flow_controller(), 0); |
| EXPECT_EQ(0u, QuicFlowControllerPeer::ReceiveWindowOffset( |
| stream_->flow_controller())); |
| |
| // Send a frame with a FIN but no data. This should not be blocked. |
| string body = ""; |
| bool fin = true; |
| |
| EXPECT_CALL(*connection_, SendBlocked(kClientDataStreamId1)).Times(0); |
| EXPECT_CALL(*session_, WritevData(kClientDataStreamId1, _, _, _, _, _)) |
| .WillOnce(Return(QuicConsumedData(0, fin))); |
| |
| stream_->WriteOrBufferData(body, fin, NULL); |
| } |
| |
| } // namespace |
| } // namespace test |
| } // namespace net |