| // Copyright (c) 2012 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 "quic/core/quic_stream.h" |
| |
| #include <memory> |
| #include <string> |
| #include <utility> |
| |
| #include "absl/base/macros.h" |
| #include "absl/memory/memory.h" |
| #include "absl/strings/string_view.h" |
| #include "absl/types/optional.h" |
| #include "quic/core/crypto/null_encrypter.h" |
| #include "quic/core/frames/quic_rst_stream_frame.h" |
| #include "quic/core/quic_connection.h" |
| #include "quic/core/quic_constants.h" |
| #include "quic/core/quic_error_codes.h" |
| #include "quic/core/quic_types.h" |
| #include "quic/core/quic_utils.h" |
| #include "quic/core/quic_versions.h" |
| #include "quic/core/quic_write_blocked_list.h" |
| #include "quic/platform/api/quic_expect_bug.h" |
| #include "quic/platform/api/quic_flags.h" |
| #include "quic/platform/api/quic_logging.h" |
| #include "quic/platform/api/quic_mem_slice_storage.h" |
| #include "quic/platform/api/quic_test.h" |
| #include "quic/test_tools/quic_config_peer.h" |
| #include "quic/test_tools/quic_connection_peer.h" |
| #include "quic/test_tools/quic_flow_controller_peer.h" |
| #include "quic/test_tools/quic_session_peer.h" |
| #include "quic/test_tools/quic_stream_peer.h" |
| #include "quic/test_tools/quic_stream_sequencer_peer.h" |
| #include "quic/test_tools/quic_test_utils.h" |
| |
| using testing::_; |
| using testing::AnyNumber; |
| using testing::AtLeast; |
| using testing::InSequence; |
| using testing::Invoke; |
| using testing::InvokeWithoutArgs; |
| using testing::Return; |
| using testing::StrictMock; |
| |
| namespace quic { |
| namespace test { |
| namespace { |
| |
| const char kData1[] = "FooAndBar"; |
| const char kData2[] = "EepAndBaz"; |
| const QuicByteCount kDataLen = 9; |
| |
| class TestStream : public QuicStream { |
| public: |
| TestStream(QuicStreamId id, QuicSession* session, StreamType type) |
| : QuicStream(id, session, /*is_static=*/false, type) { |
| sequencer()->set_level_triggered(true); |
| } |
| |
| TestStream(PendingStream* pending, QuicSession* session, bool is_static) |
| : QuicStream(pending, session, is_static) {} |
| |
| MOCK_METHOD(void, OnDataAvailable, (), (override)); |
| |
| MOCK_METHOD(void, OnCanWriteNewData, (), (override)); |
| |
| MOCK_METHOD(void, OnWriteSideInDataRecvdState, (), (override)); |
| |
| using QuicStream::CanWriteNewData; |
| using QuicStream::CanWriteNewDataAfterData; |
| using QuicStream::CloseWriteSide; |
| using QuicStream::fin_buffered; |
| using QuicStream::MaybeSendStopSending; |
| using QuicStream::OnClose; |
| using QuicStream::WriteMemSlices; |
| using QuicStream::WriteOrBufferData; |
| |
| private: |
| std::string data_; |
| }; |
| |
| class QuicStreamTest : public QuicTestWithParam<ParsedQuicVersion> { |
| public: |
| QuicStreamTest() |
| : zero_(QuicTime::Delta::Zero()), |
| supported_versions_(AllSupportedVersions()) {} |
| |
| void Initialize(Perspective perspective = Perspective::IS_SERVER) { |
| ParsedQuicVersionVector version_vector; |
| version_vector.push_back(GetParam()); |
| connection_ = new StrictMock<MockQuicConnection>( |
| &helper_, &alarm_factory_, perspective, version_vector); |
| connection_->AdvanceTime(QuicTime::Delta::FromSeconds(1)); |
| session_ = std::make_unique<StrictMock<MockQuicSession>>(connection_); |
| session_->Initialize(); |
| connection_->SetEncrypter( |
| ENCRYPTION_FORWARD_SECURE, |
| std::make_unique<NullEncrypter>(connection_->perspective())); |
| QuicConfigPeer::SetReceivedInitialSessionFlowControlWindow( |
| session_->config(), kMinimumFlowControlSendWindow); |
| QuicConfigPeer::SetReceivedInitialMaxStreamDataBytesUnidirectional( |
| session_->config(), kMinimumFlowControlSendWindow); |
| QuicConfigPeer::SetReceivedInitialMaxStreamDataBytesIncomingBidirectional( |
| session_->config(), kMinimumFlowControlSendWindow); |
| QuicConfigPeer::SetReceivedInitialMaxStreamDataBytesOutgoingBidirectional( |
| session_->config(), kMinimumFlowControlSendWindow); |
| QuicConfigPeer::SetReceivedMaxUnidirectionalStreams(session_->config(), 10); |
| session_->OnConfigNegotiated(); |
| |
| stream_ = new StrictMock<TestStream>(kTestStreamId, session_.get(), |
| BIDIRECTIONAL); |
| EXPECT_NE(nullptr, stream_); |
| // session_ now owns stream_. |
| session_->ActivateStream(absl::WrapUnique(stream_)); |
| // Ignore resetting when session_ is terminated. |
| EXPECT_CALL(*session_, MaybeSendStopSendingFrame(kTestStreamId, _)) |
| .Times(AnyNumber()); |
| EXPECT_CALL(*session_, MaybeSendRstStreamFrame(kTestStreamId, _, _)) |
| .Times(AnyNumber()); |
| write_blocked_list_ = |
| QuicSessionPeer::GetWriteBlockedStreams(session_.get()); |
| } |
| |
| bool fin_sent() { return stream_->fin_sent(); } |
| bool rst_sent() { return stream_->rst_sent(); } |
| |
| bool HasWriteBlockedStreams() { |
| return write_blocked_list_->HasWriteBlockedSpecialStream() || |
| write_blocked_list_->HasWriteBlockedDataStreams(); |
| } |
| |
| QuicConsumedData CloseStreamOnWriteError( |
| QuicStreamId id, QuicByteCount /*write_length*/, |
| QuicStreamOffset /*offset*/, StreamSendingState /*state*/, |
| TransmissionType /*type*/, absl::optional<EncryptionLevel> /*level*/) { |
| session_->ResetStream(id, QUIC_STREAM_CANCELLED); |
| return QuicConsumedData(1, false); |
| } |
| |
| bool ClearResetStreamFrame(const QuicFrame& frame) { |
| EXPECT_EQ(RST_STREAM_FRAME, frame.type); |
| DeleteFrame(&const_cast<QuicFrame&>(frame)); |
| return true; |
| } |
| |
| bool ClearStopSendingFrame(const QuicFrame& frame) { |
| EXPECT_EQ(STOP_SENDING_FRAME, frame.type); |
| DeleteFrame(&const_cast<QuicFrame&>(frame)); |
| return true; |
| } |
| |
| protected: |
| MockQuicConnectionHelper helper_; |
| MockAlarmFactory alarm_factory_; |
| MockQuicConnection* connection_; |
| std::unique_ptr<MockQuicSession> session_; |
| StrictMock<TestStream>* stream_; |
| QuicWriteBlockedList* write_blocked_list_; |
| QuicTime::Delta zero_; |
| ParsedQuicVersionVector supported_versions_; |
| QuicStreamId kTestStreamId = |
| GetNthClientInitiatedBidirectionalStreamId(GetParam().transport_version, |
| 1); |
| const QuicStreamId kTestPendingStreamId = |
| GetNthClientInitiatedUnidirectionalStreamId(GetParam().transport_version, |
| 1); |
| }; |
| |
| INSTANTIATE_TEST_SUITE_P(QuicStreamTests, QuicStreamTest, |
| ::testing::ValuesIn(AllSupportedVersions()), |
| ::testing::PrintToStringParamName()); |
| |
| using PendingStreamTest = QuicStreamTest; |
| |
| INSTANTIATE_TEST_SUITE_P(PendingStreamTests, PendingStreamTest, |
| ::testing::ValuesIn(CurrentSupportedHttp3Versions()), |
| ::testing::PrintToStringParamName()); |
| |
| TEST_P(PendingStreamTest, PendingStreamStaticness) { |
| Initialize(); |
| |
| PendingStream pending(kTestPendingStreamId, session_.get()); |
| TestStream stream(&pending, session_.get(), false); |
| EXPECT_FALSE(stream.is_static()); |
| |
| PendingStream pending2(kTestPendingStreamId + 4, session_.get()); |
| TestStream stream2(&pending2, session_.get(), true); |
| EXPECT_TRUE(stream2.is_static()); |
| } |
| |
| TEST_P(PendingStreamTest, PendingStreamType) { |
| Initialize(); |
| |
| PendingStream pending(kTestPendingStreamId, session_.get()); |
| TestStream stream(&pending, session_.get(), false); |
| EXPECT_EQ(stream.type(), READ_UNIDIRECTIONAL); |
| } |
| |
| TEST_P(PendingStreamTest, PendingStreamTypeOnClient) { |
| Initialize(Perspective::IS_CLIENT); |
| |
| QuicStreamId server_initiated_pending_stream_id = |
| GetNthServerInitiatedUnidirectionalStreamId(session_->transport_version(), |
| 1); |
| PendingStream pending(server_initiated_pending_stream_id, session_.get()); |
| TestStream stream(&pending, session_.get(), false); |
| EXPECT_EQ(stream.type(), READ_UNIDIRECTIONAL); |
| } |
| |
| TEST_P(PendingStreamTest, PendingStreamTooMuchData) { |
| Initialize(); |
| |
| PendingStream pending(kTestPendingStreamId, session_.get()); |
| // Receive a stream frame that violates flow control: the byte offset is |
| // higher than the receive window offset. |
| QuicStreamFrame frame(kTestPendingStreamId, false, |
| kInitialSessionFlowControlWindowForTest + 1, "."); |
| |
| // Stream should not accept the frame, and the connection should be closed. |
| EXPECT_CALL(*connection_, |
| CloseConnection(QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA, _, _)); |
| pending.OnStreamFrame(frame); |
| } |
| |
| TEST_P(PendingStreamTest, PendingStreamTooMuchDataInRstStream) { |
| Initialize(); |
| |
| PendingStream pending1(kTestPendingStreamId, session_.get()); |
| // Receive a rst stream frame that violates flow control: the byte offset is |
| // higher than the receive window offset. |
| QuicRstStreamFrame frame1(kInvalidControlFrameId, kTestPendingStreamId, |
| QUIC_STREAM_CANCELLED, |
| kInitialSessionFlowControlWindowForTest + 1); |
| |
| // Pending stream should not accept the frame, and the connection should be |
| // closed. |
| EXPECT_CALL(*connection_, |
| CloseConnection(QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA, _, _)); |
| pending1.OnRstStreamFrame(frame1); |
| |
| QuicStreamId bidirection_stream_id = QuicUtils::GetFirstBidirectionalStreamId( |
| session_->transport_version(), Perspective::IS_CLIENT); |
| PendingStream pending2(bidirection_stream_id, session_.get()); |
| // Receive a rst stream frame that violates flow control: the byte offset is |
| // higher than the receive window offset. |
| QuicRstStreamFrame frame2(kInvalidControlFrameId, bidirection_stream_id, |
| QUIC_STREAM_CANCELLED, |
| kInitialSessionFlowControlWindowForTest + 1); |
| // Bidirectional Pending stream should not accept the frame, and the |
| // connection should be closed. |
| EXPECT_CALL(*connection_, |
| CloseConnection(QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA, _, _)); |
| pending2.OnRstStreamFrame(frame2); |
| } |
| |
| TEST_P(PendingStreamTest, PendingStreamRstStream) { |
| Initialize(); |
| |
| PendingStream pending(kTestPendingStreamId, session_.get()); |
| QuicStreamOffset final_byte_offset = 7; |
| QuicRstStreamFrame frame(kInvalidControlFrameId, kTestPendingStreamId, |
| QUIC_STREAM_CANCELLED, final_byte_offset); |
| |
| // Pending stream should accept the frame and not close the connection. |
| EXPECT_CALL(*connection_, CloseConnection(_, _, _)).Times(0); |
| pending.OnRstStreamFrame(frame); |
| } |
| |
| TEST_P(PendingStreamTest, PendingStreamWindowUpdate) { |
| Initialize(); |
| |
| QuicStreamId bidirection_stream_id = QuicUtils::GetFirstBidirectionalStreamId( |
| session_->transport_version(), Perspective::IS_CLIENT); |
| PendingStream pending(bidirection_stream_id, session_.get()); |
| QuicWindowUpdateFrame frame(kInvalidControlFrameId, bidirection_stream_id, |
| kDefaultFlowControlSendWindow * 2); |
| pending.OnWindowUpdateFrame(frame); |
| TestStream stream(&pending, session_.get(), false); |
| |
| EXPECT_EQ(QuicStreamPeer::SendWindowSize(&stream), |
| kDefaultFlowControlSendWindow * 2); |
| } |
| |
| TEST_P(PendingStreamTest, PendingStreamStopSending) { |
| Initialize(); |
| |
| QuicStreamId bidirection_stream_id = QuicUtils::GetFirstBidirectionalStreamId( |
| session_->transport_version(), Perspective::IS_CLIENT); |
| PendingStream pending(bidirection_stream_id, session_.get()); |
| QuicResetStreamError error = |
| QuicResetStreamError::FromInternal(QUIC_STREAM_INTERNAL_ERROR); |
| pending.OnStopSending(error); |
| EXPECT_TRUE(pending.GetStopSendingErrorCode()); |
| auto actual_error = *pending.GetStopSendingErrorCode(); |
| EXPECT_EQ(actual_error, error); |
| } |
| |
| TEST_P(PendingStreamTest, FromPendingStream) { |
| Initialize(); |
| |
| PendingStream pending(kTestPendingStreamId, session_.get()); |
| |
| QuicStreamFrame frame(kTestPendingStreamId, false, 2, "."); |
| pending.OnStreamFrame(frame); |
| pending.OnStreamFrame(frame); |
| QuicStreamFrame frame2(kTestPendingStreamId, true, 3, "."); |
| pending.OnStreamFrame(frame2); |
| |
| TestStream stream(&pending, session_.get(), false); |
| EXPECT_EQ(3, stream.num_frames_received()); |
| EXPECT_EQ(3u, stream.stream_bytes_read()); |
| EXPECT_EQ(1, stream.num_duplicate_frames_received()); |
| EXPECT_EQ(true, stream.fin_received()); |
| EXPECT_EQ(frame2.offset + 1, stream.highest_received_byte_offset()); |
| EXPECT_EQ(frame2.offset + 1, |
| session_->flow_controller()->highest_received_byte_offset()); |
| } |
| |
| TEST_P(PendingStreamTest, FromPendingStreamThenData) { |
| Initialize(); |
| |
| PendingStream pending(kTestPendingStreamId, session_.get()); |
| |
| QuicStreamFrame frame(kTestPendingStreamId, false, 2, "."); |
| pending.OnStreamFrame(frame); |
| |
| auto stream = new TestStream(&pending, session_.get(), false); |
| session_->ActivateStream(absl::WrapUnique(stream)); |
| |
| QuicStreamFrame frame2(kTestPendingStreamId, true, 3, "."); |
| stream->OnStreamFrame(frame2); |
| |
| EXPECT_EQ(2, stream->num_frames_received()); |
| EXPECT_EQ(2u, stream->stream_bytes_read()); |
| EXPECT_EQ(true, stream->fin_received()); |
| EXPECT_EQ(frame2.offset + 1, stream->highest_received_byte_offset()); |
| EXPECT_EQ(frame2.offset + 1, |
| session_->flow_controller()->highest_received_byte_offset()); |
| } |
| |
| TEST_P(QuicStreamTest, WriteAllData) { |
| Initialize(); |
| |
| QuicByteCount length = |
| 1 + QuicPacketCreator::StreamFramePacketOverhead( |
| connection_->transport_version(), PACKET_8BYTE_CONNECTION_ID, |
| PACKET_0BYTE_CONNECTION_ID, !kIncludeVersion, |
| !kIncludeDiversificationNonce, PACKET_4BYTE_PACKET_NUMBER, |
| VARIABLE_LENGTH_INTEGER_LENGTH_0, |
| VARIABLE_LENGTH_INTEGER_LENGTH_0, 0u); |
| connection_->SetMaxPacketLength(length); |
| |
| EXPECT_CALL(*session_, WritevData(kTestStreamId, _, _, _, _, _)) |
| .WillOnce(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| stream_->WriteOrBufferData(kData1, false, nullptr); |
| EXPECT_FALSE(HasWriteBlockedStreams()); |
| } |
| |
| TEST_P(QuicStreamTest, NoBlockingIfNoDataOrFin) { |
| Initialize(); |
| |
| // Write no data and no fin. If we consume nothing we should not be write |
| // blocked. |
| EXPECT_QUIC_BUG( |
| stream_->WriteOrBufferData(absl::string_view(), false, nullptr), ""); |
| EXPECT_FALSE(HasWriteBlockedStreams()); |
| } |
| |
| TEST_P(QuicStreamTest, BlockIfOnlySomeDataConsumed) { |
| Initialize(); |
| |
| // Write some data and no fin. If we consume some but not all of the data, |
| // we should be write blocked a not all the data was consumed. |
| EXPECT_CALL(*session_, WritevData(kTestStreamId, _, _, _, _, _)) |
| .WillOnce(InvokeWithoutArgs([this]() { |
| return session_->ConsumeData(stream_->id(), 1u, 0u, NO_FIN, |
| NOT_RETRANSMISSION, absl::nullopt); |
| })); |
| stream_->WriteOrBufferData(absl::string_view(kData1, 2), false, nullptr); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| ASSERT_EQ(1u, write_blocked_list_->NumBlockedStreams()); |
| EXPECT_EQ(1u, stream_->BufferedDataBytes()); |
| } |
| |
| TEST_P(QuicStreamTest, BlockIfFinNotConsumedWithData) { |
| Initialize(); |
| |
| // Write some data and no fin. If we consume all the data but not the fin, |
| // we should be write blocked because the fin was not consumed. |
| // (This should never actually happen as the fin should be sent out with the |
| // last data) |
| EXPECT_CALL(*session_, WritevData(kTestStreamId, _, _, _, _, _)) |
| .WillOnce(InvokeWithoutArgs([this]() { |
| return session_->ConsumeData(stream_->id(), 2u, 0u, NO_FIN, |
| NOT_RETRANSMISSION, absl::nullopt); |
| })); |
| stream_->WriteOrBufferData(absl::string_view(kData1, 2), true, nullptr); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| ASSERT_EQ(1u, write_blocked_list_->NumBlockedStreams()); |
| } |
| |
| TEST_P(QuicStreamTest, BlockIfSoloFinNotConsumed) { |
| Initialize(); |
| |
| // Write no data and a fin. If we consume nothing we should be write blocked, |
| // as the fin was not consumed. |
| EXPECT_CALL(*session_, WritevData(kTestStreamId, _, _, _, _, _)) |
| .WillOnce(Return(QuicConsumedData(0, false))); |
| stream_->WriteOrBufferData(absl::string_view(), true, nullptr); |
| ASSERT_EQ(1u, write_blocked_list_->NumBlockedStreams()); |
| } |
| |
| TEST_P(QuicStreamTest, CloseOnPartialWrite) { |
| Initialize(); |
| |
| // Write some data and no fin. However, while writing the data |
| // close the stream and verify that MarkConnectionLevelWriteBlocked does not |
| // crash with an unknown stream. |
| EXPECT_CALL(*session_, WritevData(kTestStreamId, _, _, _, _, _)) |
| .WillOnce(Invoke(this, &QuicStreamTest::CloseStreamOnWriteError)); |
| stream_->WriteOrBufferData(absl::string_view(kData1, 2), false, nullptr); |
| ASSERT_EQ(0u, write_blocked_list_->NumBlockedStreams()); |
| } |
| |
| TEST_P(QuicStreamTest, WriteOrBufferData) { |
| Initialize(); |
| |
| EXPECT_FALSE(HasWriteBlockedStreams()); |
| QuicByteCount length = |
| 1 + QuicPacketCreator::StreamFramePacketOverhead( |
| connection_->transport_version(), PACKET_8BYTE_CONNECTION_ID, |
| PACKET_0BYTE_CONNECTION_ID, !kIncludeVersion, |
| !kIncludeDiversificationNonce, PACKET_4BYTE_PACKET_NUMBER, |
| VARIABLE_LENGTH_INTEGER_LENGTH_0, |
| VARIABLE_LENGTH_INTEGER_LENGTH_0, 0u); |
| connection_->SetMaxPacketLength(length); |
| |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(InvokeWithoutArgs([this]() { |
| return session_->ConsumeData(stream_->id(), kDataLen - 1, 0u, NO_FIN, |
| NOT_RETRANSMISSION, absl::nullopt); |
| })); |
| stream_->WriteOrBufferData(kData1, false, nullptr); |
| |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| EXPECT_EQ(1u, stream_->BufferedDataBytes()); |
| EXPECT_TRUE(HasWriteBlockedStreams()); |
| |
| // Queue a bytes_consumed write. |
| stream_->WriteOrBufferData(kData2, false, nullptr); |
| EXPECT_EQ(10u, stream_->BufferedDataBytes()); |
| // Make sure we get the tail of the first write followed by the bytes_consumed |
| InSequence s; |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(InvokeWithoutArgs([this]() { |
| return session_->ConsumeData(stream_->id(), kDataLen - 1, kDataLen - 1, |
| NO_FIN, NOT_RETRANSMISSION, absl::nullopt); |
| })); |
| EXPECT_CALL(*stream_, OnCanWriteNewData()); |
| stream_->OnCanWrite(); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| |
| // And finally the end of the bytes_consumed. |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(InvokeWithoutArgs([this]() { |
| return session_->ConsumeData(stream_->id(), 2u, 2 * kDataLen - 2, |
| NO_FIN, NOT_RETRANSMISSION, absl::nullopt); |
| })); |
| EXPECT_CALL(*stream_, OnCanWriteNewData()); |
| stream_->OnCanWrite(); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| } |
| |
| TEST_P(QuicStreamTest, WriteOrBufferDataReachStreamLimit) { |
| Initialize(); |
| std::string data("aaaaa"); |
| QuicStreamPeer::SetStreamBytesWritten(kMaxStreamLength - data.length(), |
| stream_); |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| stream_->WriteOrBufferData(data, false, nullptr); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| EXPECT_CALL(*connection_, CloseConnection(QUIC_STREAM_LENGTH_OVERFLOW, _, _)); |
| EXPECT_QUIC_BUG(stream_->WriteOrBufferData("a", false, nullptr), |
| "Write too many data via stream"); |
| } |
| |
| TEST_P(QuicStreamTest, ConnectionCloseAfterStreamClose) { |
| Initialize(); |
| |
| QuicRstStreamFrame rst_frame(kInvalidControlFrameId, stream_->id(), |
| QUIC_STREAM_CANCELLED, 1234); |
| stream_->OnStreamReset(rst_frame); |
| if (VersionHasIetfQuicFrames(session_->transport_version())) { |
| // Create and inject a STOP SENDING frame to complete the close |
| // of the stream. This is only needed for version 99/IETF QUIC. |
| QuicStopSendingFrame stop_sending(kInvalidControlFrameId, stream_->id(), |
| QUIC_STREAM_CANCELLED); |
| session_->OnStopSendingFrame(stop_sending); |
| } |
| EXPECT_THAT(stream_->stream_error(), IsStreamError(QUIC_STREAM_CANCELLED)); |
| EXPECT_THAT(stream_->connection_error(), IsQuicNoError()); |
| stream_->OnConnectionClosed(QUIC_INTERNAL_ERROR, |
| ConnectionCloseSource::FROM_SELF); |
| EXPECT_THAT(stream_->stream_error(), IsStreamError(QUIC_STREAM_CANCELLED)); |
| EXPECT_THAT(stream_->connection_error(), IsQuicNoError()); |
| } |
| |
| TEST_P(QuicStreamTest, RstAlwaysSentIfNoFinSent) { |
| // For flow control accounting, a stream must send either a FIN or a RST frame |
| // before termination. |
| // Test that if no FIN has been sent, we send a RST. |
| |
| Initialize(); |
| EXPECT_FALSE(fin_sent()); |
| EXPECT_FALSE(rst_sent()); |
| |
| // Write some data, with no FIN. |
| EXPECT_CALL(*session_, WritevData(kTestStreamId, _, _, _, _, _)) |
| .WillOnce(InvokeWithoutArgs([this]() { |
| return session_->ConsumeData(stream_->id(), 1u, 0u, NO_FIN, |
| NOT_RETRANSMISSION, absl::nullopt); |
| })); |
| stream_->WriteOrBufferData(absl::string_view(kData1, 1), false, nullptr); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| EXPECT_FALSE(fin_sent()); |
| EXPECT_FALSE(rst_sent()); |
| |
| // Now close the stream, and expect that we send a RST. |
| EXPECT_CALL(*session_, MaybeSendRstStreamFrame(kTestStreamId, _, _)); |
| QuicRstStreamFrame rst_frame(kInvalidControlFrameId, stream_->id(), |
| QUIC_STREAM_CANCELLED, 1234); |
| stream_->OnStreamReset(rst_frame); |
| if (VersionHasIetfQuicFrames(session_->transport_version())) { |
| // Create and inject a STOP SENDING frame to complete the close |
| // of the stream. This is only needed for version 99/IETF QUIC. |
| QuicStopSendingFrame stop_sending(kInvalidControlFrameId, stream_->id(), |
| QUIC_STREAM_CANCELLED); |
| session_->OnStopSendingFrame(stop_sending); |
| } |
| EXPECT_FALSE(session_->HasUnackedStreamData()); |
| EXPECT_FALSE(fin_sent()); |
| EXPECT_TRUE(rst_sent()); |
| } |
| |
| TEST_P(QuicStreamTest, RstNotSentIfFinSent) { |
| // For flow control accounting, a stream must send either a FIN or a RST frame |
| // before termination. |
| // Test that if a FIN has been sent, we don't also send a RST. |
| |
| Initialize(); |
| EXPECT_FALSE(fin_sent()); |
| EXPECT_FALSE(rst_sent()); |
| |
| // Write some data, with FIN. |
| EXPECT_CALL(*session_, WritevData(kTestStreamId, _, _, _, _, _)) |
| .WillOnce(InvokeWithoutArgs([this]() { |
| return session_->ConsumeData(stream_->id(), 1u, 0u, FIN, |
| NOT_RETRANSMISSION, absl::nullopt); |
| })); |
| stream_->WriteOrBufferData(absl::string_view(kData1, 1), true, nullptr); |
| EXPECT_TRUE(fin_sent()); |
| EXPECT_FALSE(rst_sent()); |
| |
| // Now close the stream, and expect that we do not send a RST. |
| QuicStreamPeer::CloseReadSide(stream_); |
| stream_->CloseWriteSide(); |
| EXPECT_TRUE(fin_sent()); |
| EXPECT_FALSE(rst_sent()); |
| } |
| |
| TEST_P(QuicStreamTest, OnlySendOneRst) { |
| // For flow control accounting, a stream must send either a FIN or a RST frame |
| // before termination. |
| // Test that if a stream sends a RST, it doesn't send an additional RST during |
| // OnClose() (this shouldn't be harmful, but we shouldn't do it anyway...) |
| |
| Initialize(); |
| EXPECT_FALSE(fin_sent()); |
| EXPECT_FALSE(rst_sent()); |
| |
| // Reset the stream. |
| EXPECT_CALL(*session_, MaybeSendRstStreamFrame(kTestStreamId, _, _)).Times(1); |
| stream_->Reset(QUIC_STREAM_CANCELLED); |
| EXPECT_FALSE(fin_sent()); |
| EXPECT_TRUE(rst_sent()); |
| |
| // Now close the stream (any further resets being sent would break the |
| // expectation above). |
| QuicStreamPeer::CloseReadSide(stream_); |
| stream_->CloseWriteSide(); |
| EXPECT_FALSE(fin_sent()); |
| EXPECT_TRUE(rst_sent()); |
| } |
| |
| TEST_P(QuicStreamTest, StreamFlowControlMultipleWindowUpdates) { |
| Initialize(); |
| |
| // If we receive multiple WINDOW_UPDATES (potentially out of order), then we |
| // want to make sure we latch the largest offset we see. |
| |
| // Initially should be default. |
| EXPECT_EQ(kMinimumFlowControlSendWindow, |
| QuicStreamPeer::SendWindowOffset(stream_)); |
| |
| // Check a single WINDOW_UPDATE results in correct offset. |
| QuicWindowUpdateFrame window_update_1(kInvalidControlFrameId, stream_->id(), |
| kMinimumFlowControlSendWindow + 5); |
| stream_->OnWindowUpdateFrame(window_update_1); |
| EXPECT_EQ(window_update_1.max_data, |
| QuicStreamPeer::SendWindowOffset(stream_)); |
| |
| // Now send a few more WINDOW_UPDATES and make sure that only the largest is |
| // remembered. |
| QuicWindowUpdateFrame window_update_2(kInvalidControlFrameId, stream_->id(), |
| 1); |
| QuicWindowUpdateFrame window_update_3(kInvalidControlFrameId, stream_->id(), |
| kMinimumFlowControlSendWindow + 10); |
| QuicWindowUpdateFrame window_update_4(kInvalidControlFrameId, stream_->id(), |
| 5678); |
| stream_->OnWindowUpdateFrame(window_update_2); |
| stream_->OnWindowUpdateFrame(window_update_3); |
| stream_->OnWindowUpdateFrame(window_update_4); |
| EXPECT_EQ(window_update_3.max_data, |
| QuicStreamPeer::SendWindowOffset(stream_)); |
| } |
| |
| TEST_P(QuicStreamTest, FrameStats) { |
| Initialize(); |
| |
| EXPECT_EQ(0, stream_->num_frames_received()); |
| EXPECT_EQ(0, stream_->num_duplicate_frames_received()); |
| QuicStreamFrame frame(stream_->id(), false, 0, "."); |
| EXPECT_CALL(*stream_, OnDataAvailable()).Times(2); |
| stream_->OnStreamFrame(frame); |
| EXPECT_EQ(1, stream_->num_frames_received()); |
| EXPECT_EQ(0, stream_->num_duplicate_frames_received()); |
| stream_->OnStreamFrame(frame); |
| EXPECT_EQ(2, stream_->num_frames_received()); |
| EXPECT_EQ(1, stream_->num_duplicate_frames_received()); |
| QuicStreamFrame frame2(stream_->id(), false, 1, "abc"); |
| stream_->OnStreamFrame(frame2); |
| } |
| |
| // Verify that when we receive a packet which violates flow control (i.e. sends |
| // too much data on the stream) that the stream sequencer never sees this frame, |
| // as we check for violation and close the connection early. |
| TEST_P(QuicStreamTest, StreamSequencerNeverSeesPacketsViolatingFlowControl) { |
| Initialize(); |
| |
| // Receive a stream frame that violates flow control: the byte offset is |
| // higher than the receive window offset. |
| QuicStreamFrame frame(stream_->id(), false, |
| kInitialSessionFlowControlWindowForTest + 1, "."); |
| EXPECT_GT(frame.offset, QuicStreamPeer::ReceiveWindowOffset(stream_)); |
| |
| // Stream should not accept the frame, and the connection should be closed. |
| EXPECT_CALL(*connection_, |
| CloseConnection(QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA, _, _)); |
| stream_->OnStreamFrame(frame); |
| } |
| |
| // Verify that after the consumer calls StopReading(), the stream still sends |
| // flow control updates. |
| TEST_P(QuicStreamTest, StopReadingSendsFlowControl) { |
| Initialize(); |
| |
| stream_->StopReading(); |
| |
| // Connection should not get terminated due to flow control errors. |
| EXPECT_CALL(*connection_, |
| CloseConnection(QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA, _, _)) |
| .Times(0); |
| EXPECT_CALL(*session_, WriteControlFrame(_, _)) |
| .Times(AtLeast(1)) |
| .WillRepeatedly(Invoke(&ClearControlFrameWithTransmissionType)); |
| |
| std::string data(1000, 'x'); |
| for (QuicStreamOffset offset = 0; |
| offset < 2 * kInitialStreamFlowControlWindowForTest; |
| offset += data.length()) { |
| QuicStreamFrame frame(stream_->id(), false, offset, data); |
| stream_->OnStreamFrame(frame); |
| } |
| EXPECT_LT(kInitialStreamFlowControlWindowForTest, |
| QuicStreamPeer::ReceiveWindowOffset(stream_)); |
| } |
| |
| TEST_P(QuicStreamTest, FinalByteOffsetFromFin) { |
| Initialize(); |
| |
| EXPECT_FALSE(stream_->HasReceivedFinalOffset()); |
| |
| QuicStreamFrame stream_frame_no_fin(stream_->id(), false, 1234, "."); |
| stream_->OnStreamFrame(stream_frame_no_fin); |
| EXPECT_FALSE(stream_->HasReceivedFinalOffset()); |
| |
| QuicStreamFrame stream_frame_with_fin(stream_->id(), true, 1234, "."); |
| stream_->OnStreamFrame(stream_frame_with_fin); |
| EXPECT_TRUE(stream_->HasReceivedFinalOffset()); |
| } |
| |
| TEST_P(QuicStreamTest, FinalByteOffsetFromRst) { |
| Initialize(); |
| |
| EXPECT_FALSE(stream_->HasReceivedFinalOffset()); |
| QuicRstStreamFrame rst_frame(kInvalidControlFrameId, stream_->id(), |
| QUIC_STREAM_CANCELLED, 1234); |
| stream_->OnStreamReset(rst_frame); |
| EXPECT_TRUE(stream_->HasReceivedFinalOffset()); |
| } |
| |
| TEST_P(QuicStreamTest, InvalidFinalByteOffsetFromRst) { |
| Initialize(); |
| |
| EXPECT_FALSE(stream_->HasReceivedFinalOffset()); |
| QuicRstStreamFrame rst_frame(kInvalidControlFrameId, stream_->id(), |
| QUIC_STREAM_CANCELLED, 0xFFFFFFFFFFFF); |
| // Stream should not accept the frame, and the connection should be closed. |
| EXPECT_CALL(*connection_, |
| CloseConnection(QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA, _, _)); |
| stream_->OnStreamReset(rst_frame); |
| EXPECT_TRUE(stream_->HasReceivedFinalOffset()); |
| } |
| |
| TEST_P(QuicStreamTest, FinalByteOffsetFromZeroLengthStreamFrame) { |
| // When receiving Trailers, an empty stream frame is created with the FIN set, |
| // and is passed to OnStreamFrame. The Trailers may be sent in advance of |
| // queued body bytes being sent, and thus the final byte offset may exceed |
| // current flow control limits. Flow control should only be concerned with |
| // data that has actually been sent/received, so verify that flow control |
| // ignores such a stream frame. |
| Initialize(); |
| |
| EXPECT_FALSE(stream_->HasReceivedFinalOffset()); |
| const QuicStreamOffset kByteOffsetExceedingFlowControlWindow = |
| kInitialSessionFlowControlWindowForTest + 1; |
| const QuicStreamOffset current_stream_flow_control_offset = |
| QuicStreamPeer::ReceiveWindowOffset(stream_); |
| const QuicStreamOffset current_connection_flow_control_offset = |
| QuicFlowControllerPeer::ReceiveWindowOffset(session_->flow_controller()); |
| ASSERT_GT(kByteOffsetExceedingFlowControlWindow, |
| current_stream_flow_control_offset); |
| ASSERT_GT(kByteOffsetExceedingFlowControlWindow, |
| current_connection_flow_control_offset); |
| QuicStreamFrame zero_length_stream_frame_with_fin( |
| stream_->id(), /*fin=*/true, kByteOffsetExceedingFlowControlWindow, |
| absl::string_view()); |
| EXPECT_EQ(0, zero_length_stream_frame_with_fin.data_length); |
| |
| EXPECT_CALL(*connection_, CloseConnection(_, _, _)).Times(0); |
| stream_->OnStreamFrame(zero_length_stream_frame_with_fin); |
| EXPECT_TRUE(stream_->HasReceivedFinalOffset()); |
| |
| // The flow control receive offset values should not have changed. |
| EXPECT_EQ(current_stream_flow_control_offset, |
| QuicStreamPeer::ReceiveWindowOffset(stream_)); |
| EXPECT_EQ( |
| current_connection_flow_control_offset, |
| QuicFlowControllerPeer::ReceiveWindowOffset(session_->flow_controller())); |
| } |
| |
| TEST_P(QuicStreamTest, OnStreamResetOffsetOverflow) { |
| Initialize(); |
| QuicRstStreamFrame rst_frame(kInvalidControlFrameId, stream_->id(), |
| QUIC_STREAM_CANCELLED, kMaxStreamLength + 1); |
| EXPECT_CALL(*connection_, CloseConnection(QUIC_STREAM_LENGTH_OVERFLOW, _, _)); |
| stream_->OnStreamReset(rst_frame); |
| } |
| |
| TEST_P(QuicStreamTest, OnStreamFrameUpperLimit) { |
| Initialize(); |
| |
| // Modify receive window offset and sequencer buffer total_bytes_read_ to |
| // avoid flow control violation. |
| QuicStreamPeer::SetReceiveWindowOffset(stream_, kMaxStreamLength + 5u); |
| QuicFlowControllerPeer::SetReceiveWindowOffset(session_->flow_controller(), |
| kMaxStreamLength + 5u); |
| QuicStreamSequencerPeer::SetFrameBufferTotalBytesRead( |
| QuicStreamPeer::sequencer(stream_), kMaxStreamLength - 10u); |
| |
| EXPECT_CALL(*connection_, CloseConnection(QUIC_STREAM_LENGTH_OVERFLOW, _, _)) |
| .Times(0); |
| QuicStreamFrame stream_frame(stream_->id(), false, kMaxStreamLength - 1, "."); |
| stream_->OnStreamFrame(stream_frame); |
| QuicStreamFrame stream_frame2(stream_->id(), true, kMaxStreamLength, ""); |
| stream_->OnStreamFrame(stream_frame2); |
| } |
| |
| TEST_P(QuicStreamTest, StreamTooLong) { |
| Initialize(); |
| EXPECT_CALL(*connection_, CloseConnection(QUIC_STREAM_LENGTH_OVERFLOW, _, _)) |
| .Times(1); |
| QuicStreamFrame stream_frame(stream_->id(), false, kMaxStreamLength, "."); |
| EXPECT_QUIC_PEER_BUG( |
| stream_->OnStreamFrame(stream_frame), |
| absl::StrCat("Receive stream frame on stream ", stream_->id(), |
| " reaches max stream length")); |
| } |
| |
| TEST_P(QuicStreamTest, SetDrainingIncomingOutgoing) { |
| // Don't have incoming data consumed. |
| Initialize(); |
| |
| // Incoming data with FIN. |
| QuicStreamFrame stream_frame_with_fin(stream_->id(), true, 1234, "."); |
| stream_->OnStreamFrame(stream_frame_with_fin); |
| // The FIN has been received but not consumed. |
| EXPECT_TRUE(stream_->HasReceivedFinalOffset()); |
| EXPECT_FALSE(QuicStreamPeer::read_side_closed(stream_)); |
| EXPECT_FALSE(stream_->reading_stopped()); |
| |
| EXPECT_EQ(1u, QuicSessionPeer::GetNumOpenDynamicStreams(session_.get())); |
| |
| // Outgoing data with FIN. |
| EXPECT_CALL(*session_, WritevData(kTestStreamId, _, _, _, _, _)) |
| .WillOnce(InvokeWithoutArgs([this]() { |
| return session_->ConsumeData(stream_->id(), 2u, 0u, FIN, |
| NOT_RETRANSMISSION, absl::nullopt); |
| })); |
| stream_->WriteOrBufferData(absl::string_view(kData1, 2), true, nullptr); |
| EXPECT_TRUE(stream_->write_side_closed()); |
| |
| EXPECT_EQ(1u, QuicSessionPeer::GetNumDrainingStreams(session_.get())); |
| EXPECT_EQ(0u, QuicSessionPeer::GetNumOpenDynamicStreams(session_.get())); |
| } |
| |
| TEST_P(QuicStreamTest, SetDrainingOutgoingIncoming) { |
| // Don't have incoming data consumed. |
| Initialize(); |
| |
| // Outgoing data with FIN. |
| EXPECT_CALL(*session_, WritevData(kTestStreamId, _, _, _, _, _)) |
| .WillOnce(InvokeWithoutArgs([this]() { |
| return session_->ConsumeData(stream_->id(), 2u, 0u, FIN, |
| NOT_RETRANSMISSION, absl::nullopt); |
| })); |
| stream_->WriteOrBufferData(absl::string_view(kData1, 2), true, nullptr); |
| EXPECT_TRUE(stream_->write_side_closed()); |
| |
| EXPECT_EQ(1u, QuicSessionPeer::GetNumOpenDynamicStreams(session_.get())); |
| |
| // Incoming data with FIN. |
| QuicStreamFrame stream_frame_with_fin(stream_->id(), true, 1234, "."); |
| stream_->OnStreamFrame(stream_frame_with_fin); |
| // The FIN has been received but not consumed. |
| EXPECT_TRUE(stream_->HasReceivedFinalOffset()); |
| EXPECT_FALSE(QuicStreamPeer::read_side_closed(stream_)); |
| EXPECT_FALSE(stream_->reading_stopped()); |
| |
| EXPECT_EQ(1u, QuicSessionPeer::GetNumDrainingStreams(session_.get())); |
| EXPECT_EQ(0u, QuicSessionPeer::GetNumOpenDynamicStreams(session_.get())); |
| } |
| |
| TEST_P(QuicStreamTest, EarlyResponseFinHandling) { |
| // Verify that if the server completes the response before reading the end of |
| // the request, the received FIN is recorded. |
| |
| Initialize(); |
| EXPECT_CALL(*connection_, CloseConnection(_, _, _)).Times(0); |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillRepeatedly(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| |
| // Receive data for the request. |
| EXPECT_CALL(*stream_, OnDataAvailable()).Times(1); |
| QuicStreamFrame frame1(stream_->id(), false, 0, "Start"); |
| stream_->OnStreamFrame(frame1); |
| // When QuicSimpleServerStream sends the response, it calls |
| // QuicStream::CloseReadSide() first. |
| QuicStreamPeer::CloseReadSide(stream_); |
| // Send data and FIN for the response. |
| stream_->WriteOrBufferData(kData1, false, nullptr); |
| EXPECT_TRUE(QuicStreamPeer::read_side_closed(stream_)); |
| // Receive remaining data and FIN for the request. |
| QuicStreamFrame frame2(stream_->id(), true, 0, "End"); |
| stream_->OnStreamFrame(frame2); |
| EXPECT_TRUE(stream_->fin_received()); |
| EXPECT_TRUE(stream_->HasReceivedFinalOffset()); |
| } |
| |
| TEST_P(QuicStreamTest, StreamWaitsForAcks) { |
| Initialize(); |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillRepeatedly(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| // Stream is not waiting for acks initially. |
| EXPECT_FALSE(stream_->IsWaitingForAcks()); |
| EXPECT_EQ(0u, QuicStreamPeer::SendBuffer(stream_).size()); |
| EXPECT_FALSE(session_->HasUnackedStreamData()); |
| |
| // Send kData1. |
| stream_->WriteOrBufferData(kData1, false, nullptr); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| EXPECT_EQ(1u, QuicStreamPeer::SendBuffer(stream_).size()); |
| EXPECT_TRUE(stream_->IsWaitingForAcks()); |
| QuicByteCount newly_acked_length = 0; |
| EXPECT_TRUE(stream_->OnStreamFrameAcked(0, 9, false, QuicTime::Delta::Zero(), |
| QuicTime::Zero(), |
| &newly_acked_length)); |
| EXPECT_EQ(9u, newly_acked_length); |
| // Stream is not waiting for acks as all sent data is acked. |
| EXPECT_FALSE(stream_->IsWaitingForAcks()); |
| EXPECT_FALSE(session_->HasUnackedStreamData()); |
| EXPECT_EQ(0u, QuicStreamPeer::SendBuffer(stream_).size()); |
| |
| // Send kData2. |
| stream_->WriteOrBufferData(kData2, false, nullptr); |
| EXPECT_TRUE(stream_->IsWaitingForAcks()); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| EXPECT_EQ(1u, QuicStreamPeer::SendBuffer(stream_).size()); |
| // Send FIN. |
| stream_->WriteOrBufferData("", true, nullptr); |
| // Fin only frame is not stored in send buffer. |
| EXPECT_EQ(1u, QuicStreamPeer::SendBuffer(stream_).size()); |
| |
| // kData2 is retransmitted. |
| stream_->OnStreamFrameRetransmitted(9, 9, false); |
| |
| // kData2 is acked. |
| EXPECT_TRUE(stream_->OnStreamFrameAcked(9, 9, false, QuicTime::Delta::Zero(), |
| QuicTime::Zero(), |
| &newly_acked_length)); |
| EXPECT_EQ(9u, newly_acked_length); |
| // Stream is waiting for acks as FIN is not acked. |
| EXPECT_TRUE(stream_->IsWaitingForAcks()); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| EXPECT_EQ(0u, QuicStreamPeer::SendBuffer(stream_).size()); |
| |
| // FIN is acked. |
| EXPECT_CALL(*stream_, OnWriteSideInDataRecvdState()); |
| EXPECT_TRUE(stream_->OnStreamFrameAcked(18, 0, true, QuicTime::Delta::Zero(), |
| QuicTime::Zero(), |
| &newly_acked_length)); |
| EXPECT_EQ(0u, newly_acked_length); |
| EXPECT_FALSE(stream_->IsWaitingForAcks()); |
| EXPECT_FALSE(session_->HasUnackedStreamData()); |
| EXPECT_EQ(0u, QuicStreamPeer::SendBuffer(stream_).size()); |
| } |
| |
| TEST_P(QuicStreamTest, StreamDataGetAckedOutOfOrder) { |
| Initialize(); |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillRepeatedly(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| // Send data. |
| stream_->WriteOrBufferData(kData1, false, nullptr); |
| stream_->WriteOrBufferData(kData1, false, nullptr); |
| stream_->WriteOrBufferData(kData1, false, nullptr); |
| stream_->WriteOrBufferData("", true, nullptr); |
| EXPECT_EQ(3u, QuicStreamPeer::SendBuffer(stream_).size()); |
| EXPECT_TRUE(stream_->IsWaitingForAcks()); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| QuicByteCount newly_acked_length = 0; |
| EXPECT_TRUE(stream_->OnStreamFrameAcked(9, 9, false, QuicTime::Delta::Zero(), |
| QuicTime::Zero(), |
| &newly_acked_length)); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| EXPECT_EQ(9u, newly_acked_length); |
| EXPECT_EQ(3u, QuicStreamPeer::SendBuffer(stream_).size()); |
| EXPECT_TRUE(stream_->OnStreamFrameAcked(18, 9, false, QuicTime::Delta::Zero(), |
| QuicTime::Zero(), |
| &newly_acked_length)); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| EXPECT_EQ(9u, newly_acked_length); |
| EXPECT_EQ(3u, QuicStreamPeer::SendBuffer(stream_).size()); |
| EXPECT_TRUE(stream_->OnStreamFrameAcked(0, 9, false, QuicTime::Delta::Zero(), |
| QuicTime::Zero(), |
| &newly_acked_length)); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| EXPECT_EQ(9u, newly_acked_length); |
| EXPECT_EQ(0u, QuicStreamPeer::SendBuffer(stream_).size()); |
| // FIN is not acked yet. |
| EXPECT_TRUE(stream_->IsWaitingForAcks()); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| EXPECT_CALL(*stream_, OnWriteSideInDataRecvdState()); |
| EXPECT_TRUE(stream_->OnStreamFrameAcked(27, 0, true, QuicTime::Delta::Zero(), |
| QuicTime::Zero(), |
| &newly_acked_length)); |
| EXPECT_EQ(0u, newly_acked_length); |
| EXPECT_FALSE(stream_->IsWaitingForAcks()); |
| EXPECT_FALSE(session_->HasUnackedStreamData()); |
| } |
| |
| TEST_P(QuicStreamTest, CancelStream) { |
| Initialize(); |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillRepeatedly(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| EXPECT_FALSE(stream_->IsWaitingForAcks()); |
| EXPECT_FALSE(session_->HasUnackedStreamData()); |
| EXPECT_EQ(0u, QuicStreamPeer::SendBuffer(stream_).size()); |
| |
| stream_->WriteOrBufferData(kData1, false, nullptr); |
| EXPECT_TRUE(stream_->IsWaitingForAcks()); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| EXPECT_EQ(1u, QuicStreamPeer::SendBuffer(stream_).size()); |
| // Cancel stream. |
| stream_->MaybeSendStopSending(QUIC_STREAM_NO_ERROR); |
| // stream still waits for acks as the error code is QUIC_STREAM_NO_ERROR, and |
| // data is going to be retransmitted. |
| EXPECT_TRUE(stream_->IsWaitingForAcks()); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| EXPECT_CALL(*connection_, |
| OnStreamReset(stream_->id(), QUIC_STREAM_CANCELLED)); |
| EXPECT_CALL(*session_, WriteControlFrame(_, _)) |
| .Times(AtLeast(1)) |
| .WillRepeatedly(Invoke(&ClearControlFrameWithTransmissionType)); |
| |
| EXPECT_CALL(*session_, MaybeSendRstStreamFrame(_, _, _)) |
| .WillOnce(InvokeWithoutArgs([this]() { |
| session_->ReallyMaybeSendRstStreamFrame( |
| stream_->id(), QUIC_STREAM_CANCELLED, |
| stream_->stream_bytes_written()); |
| })); |
| |
| stream_->Reset(QUIC_STREAM_CANCELLED); |
| EXPECT_EQ(1u, QuicStreamPeer::SendBuffer(stream_).size()); |
| // Stream stops waiting for acks as data is not going to be retransmitted. |
| EXPECT_FALSE(stream_->IsWaitingForAcks()); |
| EXPECT_FALSE(session_->HasUnackedStreamData()); |
| } |
| |
| TEST_P(QuicStreamTest, RstFrameReceivedStreamNotFinishSending) { |
| if (VersionHasIetfQuicFrames(GetParam().transport_version)) { |
| // In IETF QUIC, receiving a RESET_STREAM will only close the read side. The |
| // stream itself is not closed and will not send reset. |
| return; |
| } |
| |
| Initialize(); |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillRepeatedly(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| EXPECT_FALSE(stream_->IsWaitingForAcks()); |
| EXPECT_FALSE(session_->HasUnackedStreamData()); |
| EXPECT_EQ(0u, QuicStreamPeer::SendBuffer(stream_).size()); |
| |
| stream_->WriteOrBufferData(kData1, false, nullptr); |
| EXPECT_TRUE(stream_->IsWaitingForAcks()); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| EXPECT_EQ(1u, QuicStreamPeer::SendBuffer(stream_).size()); |
| |
| // RST_STREAM received. |
| QuicRstStreamFrame rst_frame(kInvalidControlFrameId, stream_->id(), |
| QUIC_STREAM_CANCELLED, 9); |
| |
| EXPECT_CALL( |
| *session_, |
| MaybeSendRstStreamFrame( |
| stream_->id(), |
| QuicResetStreamError::FromInternal(QUIC_RST_ACKNOWLEDGEMENT), 9)); |
| stream_->OnStreamReset(rst_frame); |
| EXPECT_EQ(1u, QuicStreamPeer::SendBuffer(stream_).size()); |
| // Stream stops waiting for acks as it does not finish sending and rst is |
| // sent. |
| EXPECT_FALSE(stream_->IsWaitingForAcks()); |
| EXPECT_FALSE(session_->HasUnackedStreamData()); |
| } |
| |
| TEST_P(QuicStreamTest, RstFrameReceivedStreamFinishSending) { |
| Initialize(); |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillRepeatedly(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| EXPECT_FALSE(stream_->IsWaitingForAcks()); |
| EXPECT_FALSE(session_->HasUnackedStreamData()); |
| EXPECT_EQ(0u, QuicStreamPeer::SendBuffer(stream_).size()); |
| |
| stream_->WriteOrBufferData(kData1, true, nullptr); |
| EXPECT_TRUE(stream_->IsWaitingForAcks()); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| |
| // RST_STREAM received. |
| QuicRstStreamFrame rst_frame(kInvalidControlFrameId, stream_->id(), |
| QUIC_STREAM_CANCELLED, 1234); |
| stream_->OnStreamReset(rst_frame); |
| // Stream still waits for acks as it finishes sending and has unacked data. |
| EXPECT_TRUE(stream_->IsWaitingForAcks()); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| EXPECT_EQ(1u, QuicStreamPeer::SendBuffer(stream_).size()); |
| } |
| |
| TEST_P(QuicStreamTest, ConnectionClosed) { |
| Initialize(); |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillRepeatedly(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| EXPECT_FALSE(stream_->IsWaitingForAcks()); |
| EXPECT_FALSE(session_->HasUnackedStreamData()); |
| EXPECT_EQ(0u, QuicStreamPeer::SendBuffer(stream_).size()); |
| |
| stream_->WriteOrBufferData(kData1, false, nullptr); |
| EXPECT_TRUE(stream_->IsWaitingForAcks()); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| EXPECT_CALL( |
| *session_, |
| MaybeSendRstStreamFrame( |
| stream_->id(), |
| QuicResetStreamError::FromInternal(QUIC_RST_ACKNOWLEDGEMENT), 9)); |
| QuicConnectionPeer::SetConnectionClose(connection_); |
| stream_->OnConnectionClosed(QUIC_INTERNAL_ERROR, |
| ConnectionCloseSource::FROM_SELF); |
| EXPECT_EQ(1u, QuicStreamPeer::SendBuffer(stream_).size()); |
| // Stream stops waiting for acks as connection is going to close. |
| EXPECT_FALSE(stream_->IsWaitingForAcks()); |
| EXPECT_FALSE(session_->HasUnackedStreamData()); |
| } |
| |
| TEST_P(QuicStreamTest, CanWriteNewDataAfterData) { |
| SetQuicFlag(FLAGS_quic_buffered_data_threshold, 100); |
| Initialize(); |
| EXPECT_TRUE(stream_->CanWriteNewDataAfterData(99)); |
| EXPECT_FALSE(stream_->CanWriteNewDataAfterData(100)); |
| } |
| |
| TEST_P(QuicStreamTest, WriteBufferedData) { |
| // Set buffered data low water mark to be 100. |
| SetQuicFlag(FLAGS_quic_buffered_data_threshold, 100); |
| |
| Initialize(); |
| std::string data(1024, 'a'); |
| EXPECT_TRUE(stream_->CanWriteNewData()); |
| |
| // Testing WriteOrBufferData. |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(InvokeWithoutArgs([this]() { |
| return session_->ConsumeData(stream_->id(), 100u, 0u, NO_FIN, |
| NOT_RETRANSMISSION, absl::nullopt); |
| })); |
| stream_->WriteOrBufferData(data, false, nullptr); |
| stream_->WriteOrBufferData(data, false, nullptr); |
| stream_->WriteOrBufferData(data, false, nullptr); |
| EXPECT_TRUE(stream_->IsWaitingForAcks()); |
| |
| // Verify all data is saved. |
| EXPECT_EQ(3 * data.length() - 100, stream_->BufferedDataBytes()); |
| |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(InvokeWithoutArgs([this]() { |
| return session_->ConsumeData(stream_->id(), 100, 100u, NO_FIN, |
| NOT_RETRANSMISSION, absl::nullopt); |
| })); |
| // Buffered data size > threshold, do not ask upper layer for more data. |
| EXPECT_CALL(*stream_, OnCanWriteNewData()).Times(0); |
| stream_->OnCanWrite(); |
| EXPECT_EQ(3 * data.length() - 200, stream_->BufferedDataBytes()); |
| EXPECT_FALSE(stream_->CanWriteNewData()); |
| |
| // Send buffered data to make buffered data size < threshold. |
| QuicByteCount data_to_write = |
| 3 * data.length() - 200 - |
| GetQuicFlag(FLAGS_quic_buffered_data_threshold) + 1; |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(InvokeWithoutArgs([this, data_to_write]() { |
| return session_->ConsumeData(stream_->id(), data_to_write, 200u, NO_FIN, |
| NOT_RETRANSMISSION, absl::nullopt); |
| })); |
| // Buffered data size < threshold, ask upper layer for more data. |
| EXPECT_CALL(*stream_, OnCanWriteNewData()).Times(1); |
| stream_->OnCanWrite(); |
| EXPECT_EQ(static_cast<uint64_t>( |
| GetQuicFlag(FLAGS_quic_buffered_data_threshold) - 1), |
| stream_->BufferedDataBytes()); |
| EXPECT_TRUE(stream_->CanWriteNewData()); |
| |
| // Flush all buffered data. |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| EXPECT_CALL(*stream_, OnCanWriteNewData()).Times(1); |
| stream_->OnCanWrite(); |
| EXPECT_EQ(0u, stream_->BufferedDataBytes()); |
| EXPECT_FALSE(stream_->HasBufferedData()); |
| EXPECT_TRUE(stream_->CanWriteNewData()); |
| |
| // Testing Writev. |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(Return(QuicConsumedData(0, false))); |
| struct iovec iov = {const_cast<char*>(data.data()), data.length()}; |
| QuicMemSliceStorage storage( |
| &iov, 1, session_->connection()->helper()->GetStreamSendBufferAllocator(), |
| 1024); |
| QuicConsumedData consumed = stream_->WriteMemSlices(storage.ToSpan(), false); |
| |
| // There is no buffered data before, all data should be consumed without |
| // respecting buffered data upper limit. |
| EXPECT_EQ(data.length(), consumed.bytes_consumed); |
| EXPECT_FALSE(consumed.fin_consumed); |
| EXPECT_EQ(data.length(), stream_->BufferedDataBytes()); |
| EXPECT_FALSE(stream_->CanWriteNewData()); |
| |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)).Times(0); |
| QuicMemSliceStorage storage2( |
| &iov, 1, session_->connection()->helper()->GetStreamSendBufferAllocator(), |
| 1024); |
| consumed = stream_->WriteMemSlices(storage2.ToSpan(), false); |
| // No Data can be consumed as buffered data is beyond upper limit. |
| EXPECT_EQ(0u, consumed.bytes_consumed); |
| EXPECT_FALSE(consumed.fin_consumed); |
| EXPECT_EQ(data.length(), stream_->BufferedDataBytes()); |
| |
| data_to_write = |
| data.length() - GetQuicFlag(FLAGS_quic_buffered_data_threshold) + 1; |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(InvokeWithoutArgs([this, data_to_write]() { |
| return session_->ConsumeData(stream_->id(), data_to_write, 0u, NO_FIN, |
| NOT_RETRANSMISSION, absl::nullopt); |
| })); |
| |
| EXPECT_CALL(*stream_, OnCanWriteNewData()).Times(1); |
| stream_->OnCanWrite(); |
| EXPECT_EQ(static_cast<uint64_t>( |
| GetQuicFlag(FLAGS_quic_buffered_data_threshold) - 1), |
| stream_->BufferedDataBytes()); |
| EXPECT_TRUE(stream_->CanWriteNewData()); |
| |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)).Times(0); |
| // All data can be consumed as buffered data is below upper limit. |
| QuicMemSliceStorage storage3( |
| &iov, 1, session_->connection()->helper()->GetStreamSendBufferAllocator(), |
| 1024); |
| consumed = stream_->WriteMemSlices(storage3.ToSpan(), false); |
| EXPECT_EQ(data.length(), consumed.bytes_consumed); |
| EXPECT_FALSE(consumed.fin_consumed); |
| EXPECT_EQ(data.length() + GetQuicFlag(FLAGS_quic_buffered_data_threshold) - 1, |
| stream_->BufferedDataBytes()); |
| EXPECT_FALSE(stream_->CanWriteNewData()); |
| } |
| |
| TEST_P(QuicStreamTest, WritevDataReachStreamLimit) { |
| Initialize(); |
| std::string data("aaaaa"); |
| QuicStreamPeer::SetStreamBytesWritten(kMaxStreamLength - data.length(), |
| stream_); |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| struct iovec iov = {const_cast<char*>(data.data()), 5u}; |
| QuicMemSliceStorage storage( |
| &iov, 1, session_->connection()->helper()->GetStreamSendBufferAllocator(), |
| 1024); |
| QuicConsumedData consumed = stream_->WriteMemSlices(storage.ToSpan(), false); |
| EXPECT_EQ(data.length(), consumed.bytes_consumed); |
| struct iovec iov2 = {const_cast<char*>(data.data()), 1u}; |
| QuicMemSliceStorage storage2( |
| &iov2, 1, |
| session_->connection()->helper()->GetStreamSendBufferAllocator(), 1024); |
| EXPECT_CALL(*connection_, CloseConnection(QUIC_STREAM_LENGTH_OVERFLOW, _, _)); |
| EXPECT_QUIC_BUG(stream_->WriteMemSlices(storage2.ToSpan(), false), |
| "Write too many data via stream"); |
| } |
| |
| TEST_P(QuicStreamTest, WriteMemSlices) { |
| // Set buffered data low water mark to be 100. |
| SetQuicFlag(FLAGS_quic_buffered_data_threshold, 100); |
| |
| Initialize(); |
| constexpr QuicByteCount kDataSize = 1024; |
| QuicBufferAllocator* allocator = |
| connection_->helper()->GetStreamSendBufferAllocator(); |
| std::vector<QuicMemSlice> vector1; |
| vector1.push_back(QuicMemSlice(QuicBuffer(allocator, kDataSize))); |
| vector1.push_back(QuicMemSlice(QuicBuffer(allocator, kDataSize))); |
| std::vector<QuicMemSlice> vector2; |
| vector2.push_back(QuicMemSlice(QuicBuffer(allocator, kDataSize))); |
| vector2.push_back(QuicMemSlice(QuicBuffer(allocator, kDataSize))); |
| absl::Span<QuicMemSlice> span1(vector1); |
| absl::Span<QuicMemSlice> span2(vector2); |
| |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(InvokeWithoutArgs([this]() { |
| return session_->ConsumeData(stream_->id(), 100u, 0u, NO_FIN, |
| NOT_RETRANSMISSION, absl::nullopt); |
| })); |
| // There is no buffered data before, all data should be consumed. |
| QuicConsumedData consumed = stream_->WriteMemSlices(span1, false); |
| EXPECT_EQ(2048u, consumed.bytes_consumed); |
| EXPECT_FALSE(consumed.fin_consumed); |
| EXPECT_EQ(2 * kDataSize - 100, stream_->BufferedDataBytes()); |
| EXPECT_FALSE(stream_->fin_buffered()); |
| |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)).Times(0); |
| // No Data can be consumed as buffered data is beyond upper limit. |
| consumed = stream_->WriteMemSlices(span2, true); |
| EXPECT_EQ(0u, consumed.bytes_consumed); |
| EXPECT_FALSE(consumed.fin_consumed); |
| EXPECT_EQ(2 * kDataSize - 100, stream_->BufferedDataBytes()); |
| EXPECT_FALSE(stream_->fin_buffered()); |
| |
| QuicByteCount data_to_write = |
| 2 * kDataSize - 100 - GetQuicFlag(FLAGS_quic_buffered_data_threshold) + 1; |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(InvokeWithoutArgs([this, data_to_write]() { |
| return session_->ConsumeData(stream_->id(), data_to_write, 100u, NO_FIN, |
| NOT_RETRANSMISSION, absl::nullopt); |
| })); |
| EXPECT_CALL(*stream_, OnCanWriteNewData()).Times(1); |
| stream_->OnCanWrite(); |
| EXPECT_EQ(static_cast<uint64_t>( |
| GetQuicFlag(FLAGS_quic_buffered_data_threshold) - 1), |
| stream_->BufferedDataBytes()); |
| // Try to write slices2 again. |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)).Times(0); |
| consumed = stream_->WriteMemSlices(span2, true); |
| EXPECT_EQ(2048u, consumed.bytes_consumed); |
| EXPECT_TRUE(consumed.fin_consumed); |
| EXPECT_EQ(2 * kDataSize + GetQuicFlag(FLAGS_quic_buffered_data_threshold) - 1, |
| stream_->BufferedDataBytes()); |
| EXPECT_TRUE(stream_->fin_buffered()); |
| |
| // Flush all buffered data. |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| stream_->OnCanWrite(); |
| EXPECT_CALL(*stream_, OnCanWriteNewData()).Times(0); |
| EXPECT_FALSE(stream_->HasBufferedData()); |
| EXPECT_TRUE(stream_->write_side_closed()); |
| } |
| |
| TEST_P(QuicStreamTest, WriteMemSlicesReachStreamLimit) { |
| Initialize(); |
| QuicStreamPeer::SetStreamBytesWritten(kMaxStreamLength - 5u, stream_); |
| std::vector<std::pair<char*, size_t>> buffers; |
| QuicMemSlice slice1 = MemSliceFromString("12345"); |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(InvokeWithoutArgs([this]() { |
| return session_->ConsumeData(stream_->id(), 5u, 0u, NO_FIN, |
| NOT_RETRANSMISSION, absl::nullopt); |
| })); |
| // There is no buffered data before, all data should be consumed. |
| QuicConsumedData consumed = stream_->WriteMemSlice(std::move(slice1), false); |
| EXPECT_EQ(5u, consumed.bytes_consumed); |
| |
| QuicMemSlice slice2 = MemSliceFromString("6"); |
| EXPECT_CALL(*connection_, CloseConnection(QUIC_STREAM_LENGTH_OVERFLOW, _, _)); |
| EXPECT_QUIC_BUG(stream_->WriteMemSlice(std::move(slice2), false), |
| "Write too many data via stream"); |
| } |
| |
| TEST_P(QuicStreamTest, StreamDataGetAckedMultipleTimes) { |
| Initialize(); |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillRepeatedly(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| EXPECT_FALSE(stream_->IsWaitingForAcks()); |
| EXPECT_FALSE(session_->HasUnackedStreamData()); |
| |
| // Send [0, 27) and fin. |
| stream_->WriteOrBufferData(kData1, false, nullptr); |
| stream_->WriteOrBufferData(kData1, false, nullptr); |
| stream_->WriteOrBufferData(kData1, true, nullptr); |
| EXPECT_EQ(3u, QuicStreamPeer::SendBuffer(stream_).size()); |
| EXPECT_TRUE(stream_->IsWaitingForAcks()); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| // Ack [0, 9), [5, 22) and [18, 26) |
| // Verify [0, 9) 9 bytes are acked. |
| QuicByteCount newly_acked_length = 0; |
| EXPECT_TRUE(stream_->OnStreamFrameAcked(0, 9, false, QuicTime::Delta::Zero(), |
| QuicTime::Zero(), |
| &newly_acked_length)); |
| EXPECT_EQ(9u, newly_acked_length); |
| EXPECT_EQ(2u, QuicStreamPeer::SendBuffer(stream_).size()); |
| // Verify [9, 22) 13 bytes are acked. |
| EXPECT_TRUE(stream_->OnStreamFrameAcked(5, 17, false, QuicTime::Delta::Zero(), |
| QuicTime::Zero(), |
| &newly_acked_length)); |
| EXPECT_EQ(13u, newly_acked_length); |
| EXPECT_EQ(1u, QuicStreamPeer::SendBuffer(stream_).size()); |
| // Verify [22, 26) 4 bytes are acked. |
| EXPECT_TRUE(stream_->OnStreamFrameAcked(18, 8, false, QuicTime::Delta::Zero(), |
| QuicTime::Zero(), |
| &newly_acked_length)); |
| EXPECT_EQ(4u, newly_acked_length); |
| EXPECT_EQ(1u, QuicStreamPeer::SendBuffer(stream_).size()); |
| EXPECT_TRUE(stream_->IsWaitingForAcks()); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| |
| // Ack [0, 27). Verify [26, 27) 1 byte is acked. |
| EXPECT_TRUE(stream_->OnStreamFrameAcked(26, 1, false, QuicTime::Delta::Zero(), |
| QuicTime::Zero(), |
| &newly_acked_length)); |
| EXPECT_EQ(1u, newly_acked_length); |
| EXPECT_EQ(0u, QuicStreamPeer::SendBuffer(stream_).size()); |
| EXPECT_TRUE(stream_->IsWaitingForAcks()); |
| EXPECT_TRUE(session_->HasUnackedStreamData()); |
| |
| // Ack Fin. |
| EXPECT_CALL(*stream_, OnWriteSideInDataRecvdState()).Times(1); |
| EXPECT_TRUE(stream_->OnStreamFrameAcked(27, 0, true, QuicTime::Delta::Zero(), |
| QuicTime::Zero(), |
| &newly_acked_length)); |
| EXPECT_EQ(0u, newly_acked_length); |
| EXPECT_EQ(0u, QuicStreamPeer::SendBuffer(stream_).size()); |
| EXPECT_FALSE(stream_->IsWaitingForAcks()); |
| EXPECT_FALSE(session_->HasUnackedStreamData()); |
| |
| // Ack [10, 27) and fin. No new data is acked. |
| EXPECT_FALSE( |
| stream_->OnStreamFrameAcked(10, 17, true, QuicTime::Delta::Zero(), |
| QuicTime::Zero(), &newly_acked_length)); |
| EXPECT_EQ(0u, newly_acked_length); |
| EXPECT_EQ(0u, QuicStreamPeer::SendBuffer(stream_).size()); |
| EXPECT_FALSE(stream_->IsWaitingForAcks()); |
| EXPECT_FALSE(session_->HasUnackedStreamData()); |
| } |
| |
| TEST_P(QuicStreamTest, OnStreamFrameLost) { |
| Initialize(); |
| |
| // Send [0, 9). |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| stream_->WriteOrBufferData(kData1, false, nullptr); |
| EXPECT_FALSE(stream_->HasBufferedData()); |
| EXPECT_TRUE(stream_->IsStreamFrameOutstanding(0, 9, false)); |
| |
| // Try to send [9, 27), but connection is blocked. |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(Return(QuicConsumedData(0, false))); |
| stream_->WriteOrBufferData(kData2, false, nullptr); |
| stream_->WriteOrBufferData(kData2, false, nullptr); |
| EXPECT_TRUE(stream_->HasBufferedData()); |
| EXPECT_FALSE(stream_->HasPendingRetransmission()); |
| |
| // Lost [0, 9). When stream gets a chance to write, only lost data is |
| // transmitted. |
| stream_->OnStreamFrameLost(0, 9, false); |
| EXPECT_TRUE(stream_->HasPendingRetransmission()); |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| EXPECT_CALL(*stream_, OnCanWriteNewData()).Times(1); |
| stream_->OnCanWrite(); |
| EXPECT_FALSE(stream_->HasPendingRetransmission()); |
| EXPECT_TRUE(stream_->HasBufferedData()); |
| |
| // This OnCanWrite causes [9, 27) to be sent. |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| stream_->OnCanWrite(); |
| EXPECT_FALSE(stream_->HasBufferedData()); |
| |
| // Send a fin only frame. |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| stream_->WriteOrBufferData("", true, nullptr); |
| |
| // Lost [9, 27) and fin. |
| stream_->OnStreamFrameLost(9, 18, false); |
| stream_->OnStreamFrameLost(27, 0, true); |
| EXPECT_TRUE(stream_->HasPendingRetransmission()); |
| |
| // Ack [9, 18). |
| QuicByteCount newly_acked_length = 0; |
| EXPECT_TRUE(stream_->OnStreamFrameAcked(9, 9, false, QuicTime::Delta::Zero(), |
| QuicTime::Zero(), |
| &newly_acked_length)); |
| EXPECT_EQ(9u, newly_acked_length); |
| EXPECT_FALSE(stream_->IsStreamFrameOutstanding(9, 3, false)); |
| EXPECT_TRUE(stream_->HasPendingRetransmission()); |
| // This OnCanWrite causes [18, 27) and fin to be retransmitted. Verify fin can |
| // be bundled with data. |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(InvokeWithoutArgs([this]() { |
| return session_->ConsumeData(stream_->id(), 9u, 18u, FIN, |
| NOT_RETRANSMISSION, absl::nullopt); |
| })); |
| stream_->OnCanWrite(); |
| EXPECT_FALSE(stream_->HasPendingRetransmission()); |
| // Lost [9, 18) again, but it is not considered as lost because kData2 |
| // has been acked. |
| stream_->OnStreamFrameLost(9, 9, false); |
| EXPECT_FALSE(stream_->HasPendingRetransmission()); |
| EXPECT_TRUE(stream_->IsStreamFrameOutstanding(27, 0, true)); |
| } |
| |
| TEST_P(QuicStreamTest, CannotBundleLostFin) { |
| Initialize(); |
| |
| // Send [0, 18) and fin. |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillRepeatedly(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| stream_->WriteOrBufferData(kData1, false, nullptr); |
| stream_->WriteOrBufferData(kData2, true, nullptr); |
| |
| // Lost [0, 9) and fin. |
| stream_->OnStreamFrameLost(0, 9, false); |
| stream_->OnStreamFrameLost(18, 0, true); |
| |
| // Retransmit lost data. Verify [0, 9) and fin are retransmitted in two |
| // frames. |
| InSequence s; |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(InvokeWithoutArgs([this]() { |
| return session_->ConsumeData(stream_->id(), 9u, 0u, NO_FIN, |
| NOT_RETRANSMISSION, absl::nullopt); |
| })); |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillOnce(Return(QuicConsumedData(0, true))); |
| stream_->OnCanWrite(); |
| } |
| |
| TEST_P(QuicStreamTest, MarkConnectionLevelWriteBlockedOnWindowUpdateFrame) { |
| Initialize(); |
| |
| // Set the config to a small value so that a newly created stream has small |
| // send flow control window. |
| QuicConfigPeer::SetReceivedInitialStreamFlowControlWindow(session_->config(), |
| 100); |
| QuicConfigPeer::SetReceivedInitialMaxStreamDataBytesIncomingBidirectional( |
| session_->config(), 100); |
| auto stream = new TestStream(GetNthClientInitiatedBidirectionalStreamId( |
| GetParam().transport_version, 2), |
| session_.get(), BIDIRECTIONAL); |
| session_->ActivateStream(absl::WrapUnique(stream)); |
| |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillRepeatedly(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| EXPECT_CALL(*session_, WriteControlFrame(_, _)) |
| .WillOnce(Invoke(&ClearControlFrameWithTransmissionType)); |
| std::string data(1024, '.'); |
| stream->WriteOrBufferData(data, false, nullptr); |
| EXPECT_FALSE(HasWriteBlockedStreams()); |
| |
| QuicWindowUpdateFrame window_update(kInvalidControlFrameId, stream_->id(), |
| 1234); |
| |
| stream->OnWindowUpdateFrame(window_update); |
| // Verify stream is marked connection level write blocked. |
| EXPECT_TRUE(HasWriteBlockedStreams()); |
| EXPECT_TRUE(stream->HasBufferedData()); |
| } |
| |
| // Regression test for b/73282665. |
| TEST_P(QuicStreamTest, |
| MarkConnectionLevelWriteBlockedOnWindowUpdateFrameWithNoBufferedData) { |
| Initialize(); |
| |
| // Set the config to a small value so that a newly created stream has small |
| // send flow control window. |
| QuicConfigPeer::SetReceivedInitialStreamFlowControlWindow(session_->config(), |
| 100); |
| QuicConfigPeer::SetReceivedInitialMaxStreamDataBytesIncomingBidirectional( |
| session_->config(), 100); |
| auto stream = new TestStream(GetNthClientInitiatedBidirectionalStreamId( |
| GetParam().transport_version, 2), |
| session_.get(), BIDIRECTIONAL); |
| session_->ActivateStream(absl::WrapUnique(stream)); |
| |
| std::string data(100, '.'); |
| EXPECT_CALL(*session_, WritevData(_, _, _, _, _, _)) |
| .WillRepeatedly(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| EXPECT_CALL(*session_, WriteControlFrame(_, _)) |
| .WillOnce(Invoke(&ClearControlFrameWithTransmissionType)); |
| stream->WriteOrBufferData(data, false, nullptr); |
| EXPECT_FALSE(HasWriteBlockedStreams()); |
| |
| QuicWindowUpdateFrame window_update(kInvalidControlFrameId, stream_->id(), |
| 120); |
| stream->OnWindowUpdateFrame(window_update); |
| EXPECT_FALSE(stream->HasBufferedData()); |
| // Verify stream is marked as blocked although there is no buffered data. |
| EXPECT_TRUE(HasWriteBlockedStreams()); |
| } |
| |
| TEST_P(QuicStreamTest, RetransmitStreamData) { |
| Initialize(); |
| InSequence s; |
| |
| // Send [0, 18) with fin. |
| EXPECT_CALL(*session_, WritevData(stream_->id(), _, _, _, _, _)) |
| .Times(2) |
| .WillRepeatedly(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| stream_->WriteOrBufferData(kData1, false, nullptr); |
| stream_->WriteOrBufferData(kData1, true, nullptr); |
| // Ack [10, 13). |
| QuicByteCount newly_acked_length = 0; |
| stream_->OnStreamFrameAcked(10, 3, false, QuicTime::Delta::Zero(), |
| QuicTime::Zero(), &newly_acked_length); |
| EXPECT_EQ(3u, newly_acked_length); |
| // Retransmit [0, 18) with fin, and only [0, 8) is consumed. |
| EXPECT_CALL(*session_, WritevData(stream_->id(), 10, 0, NO_FIN, _, _)) |
| .WillOnce(InvokeWithoutArgs([this]() { |
| return session_->ConsumeData(stream_->id(), 8, 0u, NO_FIN, |
| NOT_RETRANSMISSION, absl::nullopt); |
| })); |
| EXPECT_FALSE(stream_->RetransmitStreamData(0, 18, true, PTO_RETRANSMISSION)); |
| |
| // Retransmit [0, 18) with fin, and all is consumed. |
| EXPECT_CALL(*session_, WritevData(stream_->id(), 10, 0, NO_FIN, _, _)) |
| .WillOnce(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| EXPECT_CALL(*session_, WritevData(stream_->id(), 5, 13, FIN, _, _)) |
| .WillOnce(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| EXPECT_TRUE(stream_->RetransmitStreamData(0, 18, true, PTO_RETRANSMISSION)); |
| |
| // Retransmit [0, 8) with fin, and all is consumed. |
| EXPECT_CALL(*session_, WritevData(stream_->id(), 8, 0, NO_FIN, _, _)) |
| .WillOnce(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| EXPECT_CALL(*session_, WritevData(stream_->id(), 0, 18, FIN, _, _)) |
| .WillOnce(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| EXPECT_TRUE(stream_->RetransmitStreamData(0, 8, true, PTO_RETRANSMISSION)); |
| } |
| |
| TEST_P(QuicStreamTest, ResetStreamOnTtlExpiresRetransmitLostData) { |
| Initialize(); |
| |
| EXPECT_CALL(*session_, WritevData(stream_->id(), 200, 0, FIN, _, _)) |
| .WillOnce(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| std::string body(200, 'a'); |
| stream_->WriteOrBufferData(body, true, nullptr); |
| |
| // Set TTL to be 1 s. |
| QuicTime::Delta ttl = QuicTime::Delta::FromSeconds(1); |
| ASSERT_TRUE(stream_->MaybeSetTtl(ttl)); |
| // Verify data gets retransmitted because TTL does not expire. |
| EXPECT_CALL(*session_, WritevData(stream_->id(), 100, 0, NO_FIN, _, _)) |
| .WillOnce(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| EXPECT_TRUE(stream_->RetransmitStreamData(0, 100, false, PTO_RETRANSMISSION)); |
| stream_->OnStreamFrameLost(100, 100, true); |
| EXPECT_TRUE(stream_->HasPendingRetransmission()); |
| |
| connection_->AdvanceTime(QuicTime::Delta::FromSeconds(1)); |
| // Verify stream gets reset because TTL expires. |
| if (session_->version().UsesHttp3()) { |
| EXPECT_CALL(*session_, |
| MaybeSendStopSendingFrame(_, QuicResetStreamError::FromInternal( |
| QUIC_STREAM_TTL_EXPIRED))) |
| .Times(1); |
| } |
| EXPECT_CALL( |
| *session_, |
| MaybeSendRstStreamFrame( |
| _, QuicResetStreamError::FromInternal(QUIC_STREAM_TTL_EXPIRED), _)) |
| .Times(1); |
| stream_->OnCanWrite(); |
| } |
| |
| TEST_P(QuicStreamTest, ResetStreamOnTtlExpiresEarlyRetransmitData) { |
| Initialize(); |
| |
| EXPECT_CALL(*session_, WritevData(stream_->id(), 200, 0, FIN, _, _)) |
| .WillOnce(Invoke(session_.get(), &MockQuicSession::ConsumeData)); |
| std::string body(200, 'a'); |
| stream_->WriteOrBufferData(body, true, nullptr); |
| |
| // Set TTL to be 1 s. |
| QuicTime::Delta ttl = QuicTime::Delta::FromSeconds(1); |
| ASSERT_TRUE(stream_->MaybeSetTtl(ttl)); |
| |
| connection_->AdvanceTime(QuicTime::Delta::FromSeconds(1)); |
| // Verify stream gets reset because TTL expires. |
| if (session_->version().UsesHttp3()) { |
| EXPECT_CALL(*session_, |
| MaybeSendStopSendingFrame(_, QuicResetStreamError::FromInternal( |
| QUIC_STREAM_TTL_EXPIRED))) |
| .Times(1); |
| } |
| EXPECT_CALL( |
| *session_, |
| MaybeSendRstStreamFrame( |
| _, QuicResetStreamError::FromInternal(QUIC_STREAM_TTL_EXPIRED), _)) |
| .Times(1); |
| stream_->RetransmitStreamData(0, 100, false, PTO_RETRANSMISSION); |
| } |
| |
| // Test that OnStreamReset does one-way (read) closes if version 99, two way |
| // (read and write) if not version 99. |
| TEST_P(QuicStreamTest, OnStreamResetReadOrReadWrite) { |
| Initialize(); |
| EXPECT_FALSE(stream_->write_side_closed()); |
| EXPECT_FALSE(QuicStreamPeer::read_side_closed(stream_)); |
| |
| QuicRstStreamFrame rst_frame(kInvalidControlFrameId, stream_->id(), |
| QUIC_STREAM_CANCELLED, 1234); |
| stream_->OnStreamReset(rst_frame); |
| if (VersionHasIetfQuicFrames(connection_->transport_version())) { |
| // Version 99/IETF QUIC should close just the read side. |
| EXPECT_TRUE(QuicStreamPeer::read_side_closed(stream_)); |
| EXPECT_FALSE(stream_->write_side_closed()); |
| } else { |
| // Google QUIC should close both sides of the stream. |
| EXPECT_TRUE(stream_->write_side_closed()); |
| EXPECT_TRUE(QuicStreamPeer::read_side_closed(stream_)); |
| } |
| } |
| |
| TEST_P(QuicStreamTest, WindowUpdateForReadOnlyStream) { |
| Initialize(); |
| |
| QuicStreamId stream_id = QuicUtils::GetFirstUnidirectionalStreamId( |
| connection_->transport_version(), Perspective::IS_CLIENT); |
| TestStream stream(stream_id, session_.get(), READ_UNIDIRECTIONAL); |
| QuicWindowUpdateFrame window_update_frame(kInvalidControlFrameId, stream_id, |
| 0); |
| EXPECT_CALL( |
| *connection_, |
| CloseConnection( |
| QUIC_WINDOW_UPDATE_RECEIVED_ON_READ_UNIDIRECTIONAL_STREAM, |
| "WindowUpdateFrame received on READ_UNIDIRECTIONAL stream.", _)); |
| stream.OnWindowUpdateFrame(window_update_frame); |
| } |
| |
| TEST_P(QuicStreamTest, RstStreamFrameChangesCloseOffset) { |
| Initialize(); |
| |
| QuicStreamFrame stream_frame(stream_->id(), true, 0, "abc"); |
| EXPECT_CALL(*stream_, OnDataAvailable()); |
| stream_->OnStreamFrame(stream_frame); |
| QuicRstStreamFrame rst(kInvalidControlFrameId, stream_->id(), |
| QUIC_STREAM_CANCELLED, 0u); |
| |
| EXPECT_CALL(*connection_, CloseConnection(QUIC_STREAM_MULTIPLE_OFFSET, _, _)); |
| stream_->OnStreamReset(rst); |
| } |
| |
| // Regression test for b/176073284. |
| TEST_P(QuicStreamTest, EmptyStreamFrameWithNoFin) { |
| Initialize(); |
| QuicStreamFrame empty_stream_frame(stream_->id(), false, 0, ""); |
| if (stream_->version().HasIetfQuicFrames()) { |
| EXPECT_CALL(*connection_, |
| CloseConnection(QUIC_EMPTY_STREAM_FRAME_NO_FIN, _, _)) |
| .Times(0); |
| } else { |
| EXPECT_CALL(*connection_, |
| CloseConnection(QUIC_EMPTY_STREAM_FRAME_NO_FIN, _, _)); |
| } |
| EXPECT_CALL(*stream_, OnDataAvailable()).Times(0); |
| stream_->OnStreamFrame(empty_stream_frame); |
| } |
| |
| TEST_P(QuicStreamTest, SendRstWithCustomIetfCode) { |
| Initialize(); |
| QuicResetStreamError error(QUIC_STREAM_CANCELLED, 0x1234abcd); |
| EXPECT_CALL(*session_, MaybeSendRstStreamFrame(kTestStreamId, error, _)) |
| .Times(1); |
| stream_->ResetWithError(error); |
| EXPECT_TRUE(rst_sent()); |
| } |
| |
| } // namespace |
| } // namespace test |
| } // namespace quic |
