| // Copyright (c) 2017 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/third_party/quiche/src/quic/quartc/quartc_stream.h" |
| |
| #include <memory> |
| #include <type_traits> |
| #include <utility> |
| |
| #include "testing/gmock/include/gmock/gmock.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "net/third_party/quiche/src/quic/core/crypto/quic_random.h" |
| #include "net/third_party/quiche/src/quic/core/frames/quic_stream_frame.h" |
| #include "net/third_party/quiche/src/quic/core/quic_alarm_factory.h" |
| #include "net/third_party/quiche/src/quic/core/quic_buffer_allocator.h" |
| #include "net/third_party/quiche/src/quic/core/quic_config.h" |
| #include "net/third_party/quiche/src/quic/core/quic_connection.h" |
| #include "net/third_party/quiche/src/quic/core/quic_crypto_stream.h" |
| #include "net/third_party/quiche/src/quic/core/quic_data_writer.h" |
| #include "net/third_party/quiche/src/quic/core/quic_error_codes.h" |
| #include "net/third_party/quiche/src/quic/core/quic_packet_writer.h" |
| #include "net/third_party/quiche/src/quic/core/quic_session.h" |
| #include "net/third_party/quiche/src/quic/core/quic_simple_buffer_allocator.h" |
| #include "net/third_party/quiche/src/quic/core/quic_time.h" |
| #include "net/third_party/quiche/src/quic/core/quic_types.h" |
| #include "net/third_party/quiche/src/quic/core/quic_utils.h" |
| #include "net/third_party/quiche/src/quic/core/quic_versions.h" |
| #include "net/third_party/quiche/src/quic/core/quic_write_blocked_list.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_clock.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_endian.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_flags.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_ip_address.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_ptr_util.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_socket_address.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_string.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_test.h" |
| #include "net/third_party/quiche/src/quic/platform/api/quic_test_mem_slice_vector.h" |
| #include "net/third_party/quiche/src/quic/quartc/quartc_factory.h" |
| #include "net/third_party/quiche/src/quic/test_tools/mock_clock.h" |
| #include "net/third_party/quiche/src/quic/test_tools/quic_test_utils.h" |
| #include "net/third_party/quiche/src/spdy/core/spdy_protocol.h" |
| |
| namespace quic { |
| |
| namespace { |
| |
| static const QuicStreamId kStreamId = 5; |
| |
| // MockQuicSession that does not create streams and writes data from |
| // QuicStream to a string. |
| class MockQuicSession : public QuicSession { |
| public: |
| MockQuicSession(QuicConnection* connection, |
| const QuicConfig& config, |
| QuicString* write_buffer) |
| : QuicSession(connection, |
| nullptr /*visitor*/, |
| config, |
| CurrentSupportedVersions()), |
| write_buffer_(write_buffer) {} |
| |
| ~MockQuicSession() override {} |
| |
| // Writes outgoing data from QuicStream to a string. |
| QuicConsumedData WritevData(QuicStream* stream, |
| QuicStreamId id, |
| size_t write_length, |
| QuicStreamOffset offset, |
| StreamSendingState state) override { |
| if (!writable_) { |
| return QuicConsumedData(0, false); |
| } |
| |
| // WritevData does not pass down a iovec, data is saved in stream before |
| // data is consumed. Retrieve data from stream. |
| char* buf = new char[write_length]; |
| QuicDataWriter writer(write_length, buf, NETWORK_BYTE_ORDER); |
| if (write_length > 0) { |
| stream->WriteStreamData(offset, write_length, &writer); |
| } |
| write_buffer_->append(buf, write_length); |
| delete[] buf; |
| return QuicConsumedData(write_length, state != StreamSendingState::NO_FIN); |
| } |
| |
| QuartcStream* CreateIncomingStream(QuicStreamId id) override { |
| return nullptr; |
| } |
| |
| QuartcStream* CreateIncomingStream(PendingStream pending) override { |
| return nullptr; |
| } |
| |
| const QuicCryptoStream* GetCryptoStream() const override { return nullptr; } |
| QuicCryptoStream* GetMutableCryptoStream() override { return nullptr; } |
| |
| // Called by QuicStream when they want to close stream. |
| void SendRstStream(QuicStreamId id, |
| QuicRstStreamErrorCode error, |
| QuicStreamOffset bytes_written) override {} |
| |
| // Sets whether data is written to buffer, or else if this is write blocked. |
| void set_writable(bool writable) { writable_ = writable; } |
| |
| // Tracks whether the stream is write blocked and its priority. |
| void RegisterReliableStream(QuicStreamId stream_id, |
| spdy::SpdyPriority priority) { |
| write_blocked_streams()->RegisterStream(stream_id, |
| /*is_static_stream=*/false, |
| priority); |
| } |
| |
| // The session take ownership of the stream. |
| void ActivateReliableStream(std::unique_ptr<QuicStream> stream) { |
| ActivateStream(std::move(stream)); |
| } |
| |
| private: |
| // Stores written data from ReliableQuicStreamAdapter. |
| QuicString* write_buffer_; |
| // Whether data is written to write_buffer_. |
| bool writable_ = true; |
| }; |
| |
| // Packet writer that does nothing. This is required for QuicConnection but |
| // isn't used for writing data. |
| class DummyPacketWriter : public QuicPacketWriter { |
| public: |
| DummyPacketWriter() {} |
| |
| // QuicPacketWriter overrides. |
| WriteResult WritePacket(const char* buffer, |
| size_t buf_len, |
| const QuicIpAddress& self_address, |
| const QuicSocketAddress& peer_address, |
| PerPacketOptions* options) override { |
| return WriteResult(WRITE_STATUS_ERROR, 0); |
| } |
| |
| bool IsWriteBlocked() const override { return false; } |
| |
| void SetWritable() override {} |
| |
| QuicByteCount GetMaxPacketSize( |
| const QuicSocketAddress& peer_address) const override { |
| return 0; |
| } |
| |
| bool SupportsReleaseTime() const override { return false; } |
| |
| bool IsBatchMode() const override { return false; } |
| |
| char* GetNextWriteLocation(const QuicIpAddress& self_address, |
| const QuicSocketAddress& peer_address) override { |
| return nullptr; |
| } |
| |
| WriteResult Flush() override { return WriteResult(WRITE_STATUS_OK, 0); } |
| }; |
| |
| class MockQuartcStreamDelegate : public QuartcStream::Delegate { |
| public: |
| MockQuartcStreamDelegate(QuicStreamId id, QuicString* read_buffer) |
| : id_(id), read_buffer_(read_buffer) {} |
| |
| void OnBufferChanged(QuartcStream* stream) override { |
| last_bytes_buffered_ = stream->BufferedDataBytes(); |
| last_bytes_pending_retransmission_ = stream->BytesPendingRetransmission(); |
| } |
| |
| size_t OnReceived(QuartcStream* stream, |
| iovec* iov, |
| size_t iov_length, |
| bool fin) override { |
| EXPECT_EQ(id_, stream->id()); |
| EXPECT_EQ(stream->ReadOffset(), read_buffer_->size()); |
| size_t bytes_consumed = 0; |
| for (size_t i = 0; i < iov_length; ++i) { |
| read_buffer_->append(static_cast<const char*>(iov[i].iov_base), |
| iov[i].iov_len); |
| bytes_consumed += iov[i].iov_len; |
| } |
| return bytes_consumed; |
| } |
| |
| void OnClose(QuartcStream* stream) override { closed_ = true; } |
| |
| bool closed() { return closed_; } |
| |
| QuicByteCount last_bytes_buffered() { return last_bytes_buffered_; } |
| QuicByteCount last_bytes_pending_retransmission() { |
| return last_bytes_pending_retransmission_; |
| } |
| |
| protected: |
| QuicStreamId id_; |
| // Data read by the QuicStream. |
| QuicString* read_buffer_; |
| // Whether the QuicStream is closed. |
| bool closed_ = false; |
| |
| // Last amount of data observed as buffered. |
| QuicByteCount last_bytes_buffered_ = 0; |
| QuicByteCount last_bytes_pending_retransmission_ = 0; |
| }; |
| |
| class QuartcStreamTest : public QuicTest, public QuicConnectionHelperInterface { |
| public: |
| QuartcStreamTest() { |
| // Required to correctly handle StopReading(). |
| SetQuicReloadableFlag(quic_stop_reading_when_level_triggered, true); |
| } |
| |
| ~QuartcStreamTest() override = default; |
| |
| void CreateReliableQuicStream() { |
| // Arbitrary values for QuicConnection. |
| Perspective perspective = Perspective::IS_SERVER; |
| QuicIpAddress ip; |
| ip.FromString("0.0.0.0"); |
| bool owns_writer = true; |
| |
| alarm_factory_ = QuicMakeUnique<test::MockAlarmFactory>(); |
| |
| connection_ = QuicMakeUnique<QuicConnection>( |
| QuicUtils::CreateZeroConnectionId( |
| CurrentSupportedVersions()[0].transport_version), |
| QuicSocketAddress(ip, 0), this /*QuicConnectionHelperInterface*/, |
| alarm_factory_.get(), new DummyPacketWriter(), owns_writer, perspective, |
| ParsedVersionOfIndex(CurrentSupportedVersions(), 0)); |
| clock_.AdvanceTime(QuicTime::Delta::FromSeconds(1)); |
| session_ = QuicMakeUnique<MockQuicSession>(connection_.get(), QuicConfig(), |
| &write_buffer_); |
| mock_stream_delegate_ = |
| QuicMakeUnique<MockQuartcStreamDelegate>(kStreamId, &read_buffer_); |
| stream_ = new QuartcStream(kStreamId, session_.get()); |
| stream_->SetDelegate(mock_stream_delegate_.get()); |
| session_->ActivateReliableStream(std::unique_ptr<QuartcStream>(stream_)); |
| } |
| |
| const QuicClock* GetClock() const override { return &clock_; } |
| |
| QuicRandom* GetRandomGenerator() override { |
| return QuicRandom::GetInstance(); |
| } |
| |
| QuicBufferAllocator* GetStreamSendBufferAllocator() override { |
| return &buffer_allocator_; |
| } |
| |
| protected: |
| // The QuicSession will take the ownership. |
| QuartcStream* stream_; |
| std::unique_ptr<MockQuartcStreamDelegate> mock_stream_delegate_; |
| std::unique_ptr<MockQuicSession> session_; |
| // Data written by the ReliableQuicStreamAdapterTest. |
| QuicString write_buffer_; |
| // Data read by the ReliableQuicStreamAdapterTest. |
| QuicString read_buffer_; |
| std::unique_ptr<QuicAlarmFactory> alarm_factory_; |
| std::unique_ptr<QuicConnection> connection_; |
| // Used to implement the QuicConnectionHelperInterface. |
| SimpleBufferAllocator buffer_allocator_; |
| MockClock clock_; |
| }; |
| |
| // Write an entire string. |
| TEST_F(QuartcStreamTest, WriteDataWhole) { |
| CreateReliableQuicStream(); |
| char message[] = "Foo bar"; |
| test::QuicTestMemSliceVector data({std::make_pair(message, 7)}); |
| stream_->WriteMemSlices(data.span(), /*fin=*/false); |
| EXPECT_EQ("Foo bar", write_buffer_); |
| } |
| |
| // Write part of a string. |
| TEST_F(QuartcStreamTest, WriteDataPartial) { |
| CreateReliableQuicStream(); |
| char message[] = "Foo bar"; |
| test::QuicTestMemSliceVector data({std::make_pair(message, 5)}); |
| stream_->WriteMemSlices(data.span(), /*fin=*/false); |
| EXPECT_EQ("Foo b", write_buffer_); |
| } |
| |
| // Test that a QuartcStream buffers writes correctly. |
| TEST_F(QuartcStreamTest, StreamBuffersData) { |
| CreateReliableQuicStream(); |
| |
| char message[] = "Foo bar"; |
| test::QuicTestMemSliceVector data({std::make_pair(message, 7)}); |
| |
| // The stream is not yet writable, so data will be buffered. |
| session_->set_writable(false); |
| stream_->WriteMemSlices(data.span(), /*fin=*/false); |
| |
| // Check that data is buffered. |
| EXPECT_TRUE(stream_->HasBufferedData()); |
| EXPECT_EQ(7u, stream_->BufferedDataBytes()); |
| |
| // Check that the stream told its delegate about the buffer change. |
| EXPECT_EQ(7u, mock_stream_delegate_->last_bytes_buffered()); |
| |
| // Check that none of the data was written yet. |
| // Note that |write_buffer_| actually holds data written by the QuicSession |
| // (not data buffered by the stream). |
| EXPECT_EQ(0ul, write_buffer_.size()); |
| |
| char message1[] = "xyzzy"; |
| test::QuicTestMemSliceVector data1({std::make_pair(message1, 5)}); |
| |
| // More writes go into the buffer. |
| stream_->WriteMemSlices(data1.span(), /*fin=*/false); |
| |
| EXPECT_TRUE(stream_->HasBufferedData()); |
| EXPECT_EQ(12u, stream_->BufferedDataBytes()); |
| EXPECT_EQ(12u, mock_stream_delegate_->last_bytes_buffered()); |
| EXPECT_EQ(0ul, write_buffer_.size()); |
| |
| // The stream becomes writable, so it sends the buffered data. |
| session_->set_writable(true); |
| stream_->OnCanWrite(); |
| |
| EXPECT_FALSE(stream_->HasBufferedData()); |
| EXPECT_EQ(0u, stream_->BufferedDataBytes()); |
| EXPECT_EQ(0u, mock_stream_delegate_->last_bytes_buffered()); |
| EXPECT_EQ("Foo barxyzzy", write_buffer_); |
| } |
| |
| // Finish writing to a stream. |
| // It delivers the fin bit and closes the write-side as soon as possible. |
| TEST_F(QuartcStreamTest, FinishWriting) { |
| CreateReliableQuicStream(); |
| |
| session_->set_writable(false); |
| stream_->FinishWriting(); |
| EXPECT_FALSE(stream_->fin_sent()); |
| |
| // Fin is sent as soon as the stream becomes writable. |
| session_->set_writable(true); |
| stream_->OnCanWrite(); |
| EXPECT_TRUE(stream_->fin_sent()); |
| EXPECT_TRUE(stream_->write_side_closed()); |
| } |
| |
| // Read an entire string. |
| TEST_F(QuartcStreamTest, ReadDataWhole) { |
| CreateReliableQuicStream(); |
| QuicStreamFrame frame(kStreamId, false, 0, "Hello, World!"); |
| stream_->OnStreamFrame(frame); |
| |
| EXPECT_EQ("Hello, World!", read_buffer_); |
| } |
| |
| // Read part of a string. |
| TEST_F(QuartcStreamTest, ReadDataPartial) { |
| CreateReliableQuicStream(); |
| QuicStreamFrame frame(kStreamId, false, 0, "Hello, World!"); |
| frame.data_length = 5; |
| stream_->OnStreamFrame(frame); |
| |
| EXPECT_EQ("Hello", read_buffer_); |
| } |
| |
| // Streams do not call OnReceived() after StopReading(). |
| // Note: this is tested here because Quartc relies on this behavior. |
| TEST_F(QuartcStreamTest, StopReading) { |
| CreateReliableQuicStream(); |
| stream_->StopReading(); |
| |
| QuicStreamFrame frame(kStreamId, false, 0, "Hello, World!"); |
| stream_->OnStreamFrame(frame); |
| |
| EXPECT_EQ(0ul, read_buffer_.size()); |
| |
| QuicStreamFrame frame2(kStreamId, true, 0, "Hello, World!"); |
| stream_->OnStreamFrame(frame2); |
| |
| EXPECT_EQ(0ul, read_buffer_.size()); |
| EXPECT_TRUE(stream_->fin_received()); |
| } |
| |
| // Test that closing the stream results in a callback. |
| TEST_F(QuartcStreamTest, CloseStream) { |
| CreateReliableQuicStream(); |
| EXPECT_FALSE(mock_stream_delegate_->closed()); |
| stream_->OnClose(); |
| EXPECT_TRUE(mock_stream_delegate_->closed()); |
| } |
| |
| // Both sending and receiving fin automatically closes a stream. |
| TEST_F(QuartcStreamTest, CloseOnFins) { |
| CreateReliableQuicStream(); |
| QuicStreamFrame frame(kStreamId, true, 0, 0); |
| stream_->OnStreamFrame(frame); |
| |
| test::QuicTestMemSliceVector data({}); |
| stream_->WriteMemSlices(data.span(), /*fin=*/true); |
| |
| // Check that the OnClose() callback occurred. |
| EXPECT_TRUE(mock_stream_delegate_->closed()); |
| } |
| |
| TEST_F(QuartcStreamTest, TestCancelOnLossDisabled) { |
| CreateReliableQuicStream(); |
| |
| // This should be the default state. |
| EXPECT_FALSE(stream_->cancel_on_loss()); |
| |
| char message[] = "Foo bar"; |
| test::QuicTestMemSliceVector data({std::make_pair(message, 7)}); |
| stream_->WriteMemSlices(data.span(), /*fin=*/false); |
| |
| EXPECT_EQ("Foo bar", write_buffer_); |
| |
| stream_->OnStreamFrameLost(0, 7, false); |
| stream_->OnCanWrite(); |
| |
| EXPECT_EQ("Foo barFoo bar", write_buffer_); |
| EXPECT_EQ(stream_->stream_error(), QUIC_STREAM_NO_ERROR); |
| } |
| |
| TEST_F(QuartcStreamTest, TestCancelOnLossEnabled) { |
| CreateReliableQuicStream(); |
| stream_->set_cancel_on_loss(true); |
| |
| char message[] = "Foo bar"; |
| test::QuicTestMemSliceVector data({std::make_pair(message, 7)}); |
| stream_->WriteMemSlices(data.span(), /*fin=*/false); |
| |
| EXPECT_EQ("Foo bar", write_buffer_); |
| |
| stream_->OnStreamFrameLost(0, 7, false); |
| stream_->OnCanWrite(); |
| |
| EXPECT_EQ("Foo bar", write_buffer_); |
| EXPECT_EQ(stream_->stream_error(), QUIC_STREAM_CANCELLED); |
| } |
| |
| TEST_F(QuartcStreamTest, MaxRetransmissionsAbsent) { |
| CreateReliableQuicStream(); |
| |
| // This should be the default state. |
| EXPECT_EQ(stream_->max_retransmission_count(), |
| std::numeric_limits<int>::max()); |
| |
| char message[] = "Foo bar"; |
| test::QuicTestMemSliceVector data({std::make_pair(message, 7)}); |
| stream_->WriteMemSlices(data.span(), /*fin=*/false); |
| |
| EXPECT_EQ("Foo bar", write_buffer_); |
| |
| stream_->OnStreamFrameLost(0, 7, false); |
| stream_->OnCanWrite(); |
| |
| EXPECT_EQ("Foo barFoo bar", write_buffer_); |
| EXPECT_EQ(stream_->stream_error(), QUIC_STREAM_NO_ERROR); |
| } |
| |
| TEST_F(QuartcStreamTest, MaxRetransmissionsSet) { |
| CreateReliableQuicStream(); |
| stream_->set_max_retransmission_count(2); |
| |
| char message[] = "Foo bar"; |
| test::QuicTestMemSliceVector data({std::make_pair(message, 7)}); |
| stream_->WriteMemSlices(data.span(), /*fin=*/false); |
| |
| EXPECT_EQ("Foo bar", write_buffer_); |
| |
| stream_->OnStreamFrameLost(0, 7, false); |
| stream_->OnCanWrite(); |
| |
| EXPECT_EQ("Foo barFoo bar", write_buffer_); |
| |
| stream_->OnStreamFrameLost(0, 7, false); |
| stream_->OnCanWrite(); |
| |
| EXPECT_EQ("Foo barFoo barFoo bar", write_buffer_); |
| |
| stream_->OnStreamFrameLost(0, 7, false); |
| stream_->OnCanWrite(); |
| |
| EXPECT_EQ("Foo barFoo barFoo bar", write_buffer_); |
| EXPECT_EQ(stream_->stream_error(), QUIC_STREAM_CANCELLED); |
| } |
| |
| TEST_F(QuartcStreamTest, MaxRetransmissionsDisjointFrames) { |
| CreateReliableQuicStream(); |
| stream_->set_max_retransmission_count(2); |
| |
| char message[] = "Foo bar"; |
| test::QuicTestMemSliceVector data({std::make_pair(message, 7)}); |
| stream_->WriteMemSlices(data.span(), /*fin=*/false); |
| |
| EXPECT_EQ("Foo bar", write_buffer_); |
| |
| // Retransmit bytes [0, 3]. |
| stream_->OnStreamFrameLost(0, 4, false); |
| stream_->OnCanWrite(); |
| |
| EXPECT_EQ("Foo barFoo ", write_buffer_); |
| |
| // Retransmit bytes [4, 6]. Everything has been retransmitted once. |
| stream_->OnStreamFrameLost(4, 3, false); |
| stream_->OnCanWrite(); |
| |
| EXPECT_EQ("Foo barFoo bar", write_buffer_); |
| |
| // Retransmit bytes [0, 6]. Everything can be retransmitted a second time. |
| stream_->OnStreamFrameLost(0, 7, false); |
| stream_->OnCanWrite(); |
| |
| EXPECT_EQ("Foo barFoo barFoo bar", write_buffer_); |
| } |
| |
| TEST_F(QuartcStreamTest, MaxRetransmissionsOverlappingFrames) { |
| CreateReliableQuicStream(); |
| stream_->set_max_retransmission_count(2); |
| |
| char message[] = "Foo bar"; |
| test::QuicTestMemSliceVector data({std::make_pair(message, 7)}); |
| stream_->WriteMemSlices(data.span(), /*fin=*/false); |
| |
| EXPECT_EQ("Foo bar", write_buffer_); |
| |
| // Retransmit bytes 0 to 3. |
| stream_->OnStreamFrameLost(0, 4, false); |
| stream_->OnCanWrite(); |
| |
| EXPECT_EQ("Foo barFoo ", write_buffer_); |
| |
| // Retransmit bytes 3 to 6. Byte 3 has been retransmitted twice. |
| stream_->OnStreamFrameLost(3, 4, false); |
| stream_->OnCanWrite(); |
| |
| EXPECT_EQ("Foo barFoo bar", write_buffer_); |
| |
| // Retransmit byte 3 a third time. This should cause cancellation. |
| stream_->OnStreamFrameLost(3, 1, false); |
| stream_->OnCanWrite(); |
| |
| EXPECT_EQ("Foo barFoo bar", write_buffer_); |
| EXPECT_EQ(stream_->stream_error(), QUIC_STREAM_CANCELLED); |
| } |
| |
| TEST_F(QuartcStreamTest, MaxRetransmissionsWithAckedFrame) { |
| CreateReliableQuicStream(); |
| stream_->set_max_retransmission_count(1); |
| |
| char message[] = "Foo bar"; |
| test::QuicTestMemSliceVector data({std::make_pair(message, 7)}); |
| stream_->WriteMemSlices(data.span(), /*fin=*/false); |
| |
| EXPECT_EQ("Foo bar", write_buffer_); |
| |
| // Retransmit bytes [0, 7). |
| stream_->OnStreamFrameLost(0, 7, false); |
| stream_->OnCanWrite(); |
| |
| EXPECT_EQ("Foo barFoo bar", write_buffer_); |
| |
| // Ack bytes [0, 7). These bytes should be pruned from the data tracked by |
| // the stream. |
| QuicByteCount newly_acked_length = 0; |
| stream_->OnStreamFrameAcked(0, 7, false, QuicTime::Delta::FromMilliseconds(1), |
| &newly_acked_length); |
| EXPECT_EQ(7u, newly_acked_length); |
| stream_->OnCanWrite(); |
| |
| EXPECT_EQ("Foo barFoo bar", write_buffer_); |
| |
| // Retransmit bytes [0, 7) again. |
| // QUIC will never mark frames as lost after they've been acked, but this lets |
| // us test that QuartcStream stopped tracking these bytes after the acked. |
| stream_->OnStreamFrameLost(0, 7, false); |
| stream_->OnCanWrite(); |
| |
| // QuartcStream should be cancelled, but it stopped tracking the lost bytes |
| // after they were acked, so it's not. |
| EXPECT_EQ(stream_->stream_error(), QUIC_STREAM_NO_ERROR); |
| } |
| |
| TEST_F(QuartcStreamTest, TestBytesPendingRetransmission) { |
| CreateReliableQuicStream(); |
| stream_->set_cancel_on_loss(false); |
| |
| char message[] = "Foo bar"; |
| test::QuicTestMemSliceVector data({std::make_pair(message, 7)}); |
| stream_->WriteMemSlices(data.span(), /*fin=*/false); |
| |
| EXPECT_EQ("Foo bar", write_buffer_); |
| |
| stream_->OnStreamFrameLost(0, 4, false); |
| EXPECT_EQ(stream_->BytesPendingRetransmission(), 4u); |
| EXPECT_EQ(mock_stream_delegate_->last_bytes_pending_retransmission(), 4u); |
| |
| stream_->OnStreamFrameLost(4, 3, false); |
| EXPECT_EQ(stream_->BytesPendingRetransmission(), 7u); |
| EXPECT_EQ(mock_stream_delegate_->last_bytes_pending_retransmission(), 7u); |
| |
| stream_->OnCanWrite(); |
| EXPECT_EQ(stream_->BytesPendingRetransmission(), 0u); |
| EXPECT_EQ(mock_stream_delegate_->last_bytes_pending_retransmission(), 0u); |
| |
| EXPECT_EQ("Foo barFoo bar", write_buffer_); |
| EXPECT_EQ(stream_->stream_error(), QUIC_STREAM_NO_ERROR); |
| } |
| |
| TEST_F(QuartcStreamTest, TestBytesPendingRetransmissionWithCancelOnLoss) { |
| CreateReliableQuicStream(); |
| stream_->set_cancel_on_loss(true); |
| |
| char message[] = "Foo bar"; |
| test::QuicTestMemSliceVector data({std::make_pair(message, 7)}); |
| stream_->WriteMemSlices(data.span(), /*fin=*/false); |
| |
| EXPECT_EQ("Foo bar", write_buffer_); |
| |
| stream_->OnStreamFrameLost(0, 4, false); |
| EXPECT_EQ(stream_->BytesPendingRetransmission(), 0u); |
| EXPECT_EQ(mock_stream_delegate_->last_bytes_pending_retransmission(), 0u); |
| |
| stream_->OnStreamFrameLost(4, 3, false); |
| EXPECT_EQ(stream_->BytesPendingRetransmission(), 0u); |
| EXPECT_EQ(mock_stream_delegate_->last_bytes_pending_retransmission(), 0u); |
| |
| stream_->OnCanWrite(); |
| EXPECT_EQ(stream_->BytesPendingRetransmission(), 0u); |
| EXPECT_EQ(mock_stream_delegate_->last_bytes_pending_retransmission(), 0u); |
| |
| EXPECT_EQ("Foo bar", write_buffer_); |
| EXPECT_EQ(stream_->stream_error(), QUIC_STREAM_CANCELLED); |
| } |
| |
| } // namespace |
| |
| } // namespace quic |