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d332cc4e0c006b97896dd960d58a5209e6f1a2c2
mvfst/quic/api/test/QuicTransportBaseTest.cpp
Brandon Schlinker d332cc4e0c Generic ByteEvent infrastructure 
Summary:
Introduces framework for handling callbacks when a `ByteEvent` occurs.

- Adds `ByteEventCallback`, a new class that can be used to notify a callback implementation about delivery (ACK) of a byte and is used in the subsequent diff for notifications about TX of a byte.
- Adds `ByteEvent` and `ByteEventCancellation`, both of which are used to communicate ancillary information when a ByteEvent happens to the callback implementation. This makes it easier to add additional fields (such as kernel timestamps, information about ACK delays, etc) in the future, without requiring the function signatures of all callback implementations to be updated.
- For the moment, `DeliveryCallback` inherits from `ByteEventCallback` so that existing implementations do not need to be adjusted; `DeliveryCallback` implements `ByteEventCallback`'s methods and transforms the received `ByteEvents` into the expected callback. I will deprecate `DeliveryCallback` in a subsequent diff.
- Refactors existing logic for handling delivery callbacks to be generic and capable of handling different types of byte events. This allows the same logic for registering and cancelling byte events to be reused for ACK and TX timestamps; custom logic is only required to decide when to trigger the callback.

Reviewed By: mjoras

Differential Revision: D21877803

fbshipit-source-id: 74f344aa9f83ddee2a3d0056c97c62da4a581580
2020-07-16 22:45:34 -07:00

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/*
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
*/
#include <quic/api/test/Mocks.h>
#include <folly/portability/GMock.h>
#include <folly/portability/GTest.h>
#include <quic/api/QuicSocket.h>
#include <quic/api/QuicTransportBase.h>
#include <quic/codec/DefaultConnectionIdAlgo.h>
#include <quic/common/test/TestUtils.h>
#include <quic/server/state/ServerStateMachine.h>
#include <quic/state/QuicStreamFunctions.h>
#include <quic/state/test/Mocks.h>
#include <folly/io/async/test/MockAsyncUDPSocket.h>
using namespace testing;
using namespace folly;
namespace quic {
namespace test {
constexpr uint8_t kStreamIncrement = 0x04;
enum class TestFrameType : uint8_t {
STREAM,
CRYPTO,
EXPIRED_DATA,
REJECTED_DATA,
MAX_STREAMS
};
// A made up encoding decoding of a stream.
Buf encodeStreamBuffer(StreamId id, StreamBuffer data) {
auto buf = IOBuf::create(10);
folly::io::Appender appender(buf.get(), 10);
appender.writeBE(static_cast<uint8_t>(TestFrameType::STREAM));
appender.writeBE(id);
auto dataBuf = data.data.move();
dataBuf->coalesce();
appender.writeBE<uint32_t>(dataBuf->length());
appender.push(dataBuf->coalesce());
appender.writeBE<uint64_t>(data.offset);
appender.writeBE<uint8_t>(data.eof);
return buf;
}
Buf encodeCryptoBuffer(StreamBuffer data) {
auto buf = IOBuf::create(10);
folly::io::Appender appender(buf.get(), 10);
appender.writeBE(static_cast<uint8_t>(TestFrameType::CRYPTO));
auto dataBuf = data.data.move();
dataBuf->coalesce();
appender.writeBE<uint32_t>(dataBuf->length());
appender.push(dataBuf->coalesce());
appender.writeBE<uint64_t>(data.offset);
return buf;
}
// A made up encoding of a ExpiredStreamDataFrame.
Buf encodeExpiredStreamDataFrame(const ExpiredStreamDataFrame& frame) {
auto buf = IOBuf::create(17);
folly::io::Appender appender(buf.get(), 17);
appender.writeBE(static_cast<uint8_t>(TestFrameType::EXPIRED_DATA));
appender.writeBE<uint64_t>(frame.streamId);
appender.writeBE<uint64_t>(frame.minimumStreamOffset);
return buf;
}
// A made up encoding of a MinStreamDataFrame.
Buf encodeMinStreamDataFrame(const MinStreamDataFrame& frame) {
auto buf = IOBuf::create(25);
folly::io::Appender appender(buf.get(), 25);
appender.writeBE(static_cast<uint8_t>(TestFrameType::REJECTED_DATA));
appender.writeBE<uint64_t>(frame.streamId);
appender.writeBE<uint64_t>(frame.maximumData);
appender.writeBE<uint64_t>(frame.minimumStreamOffset);
return buf;
}
// A made up encoding of a MaxStreamsFrame.
Buf encodeMaxStreamsFrame(const MaxStreamsFrame& frame) {
auto buf = IOBuf::create(25);
folly::io::Appender appender(buf.get(), 25);
appender.writeBE(static_cast<uint8_t>(TestFrameType::MAX_STREAMS));
appender.writeBE<uint8_t>(frame.isForBidirectionalStream() ? 1 : 0);
appender.writeBE<uint64_t>(frame.maxStreams);
return buf;
}
std::pair<Buf, uint64_t> decodeDataBuffer(folly::io::Cursor& cursor) {
Buf outData;
auto len = cursor.readBE<uint32_t>();
cursor.clone(outData, len);
uint64_t offset = cursor.readBE<uint64_t>();
return std::make_pair(std::move(outData), offset);
}
std::pair<StreamId, StreamBuffer> decodeStreamBuffer(
folly::io::Cursor& cursor) {
auto streamId = cursor.readBE<StreamId>();
auto dataBuffer = decodeDataBuffer(cursor);
bool eof = (bool)cursor.readBE<uint8_t>();
return std::make_pair(
streamId,
StreamBuffer(std::move(dataBuffer.first), dataBuffer.second, eof));
}
StreamBuffer decodeCryptoBuffer(folly::io::Cursor& cursor) {
auto dataBuffer = decodeDataBuffer(cursor);
return StreamBuffer(std::move(dataBuffer.first), dataBuffer.second, false);
}
ExpiredStreamDataFrame decodeExpiredStreamDataFrame(folly::io::Cursor& cursor) {
ExpiredStreamDataFrame frame = ExpiredStreamDataFrame(0, 0);
frame.streamId = cursor.readBE<uint64_t>();
frame.minimumStreamOffset = cursor.readBE<uint64_t>();
return frame;
}
MinStreamDataFrame decodeMinStreamDataFrame(folly::io::Cursor& cursor) {
MinStreamDataFrame frame = MinStreamDataFrame(0, 0, 0);
frame.streamId = cursor.readBE<uint64_t>();
frame.maximumData = cursor.readBE<uint64_t>();
frame.minimumStreamOffset = cursor.readBE<uint64_t>();
return frame;
}
MaxStreamsFrame decodeMaxStreamsFrame(folly::io::Cursor& cursor) {
bool isBidi = cursor.readBE<uint8_t>();
auto maxStreams = cursor.readBE<uint64_t>();
return MaxStreamsFrame(maxStreams, isBidi);
}
class TestPingCallback : public QuicSocket::PingCallback {
public:
void pingAcknowledged() noexcept override {}
void pingTimeout() noexcept override {}
};
class TestQuicTransport
: public QuicTransportBase,
public std::enable_shared_from_this<TestQuicTransport> {
public:
TestQuicTransport(
folly::EventBase* evb,
std::unique_ptr<folly::AsyncUDPSocket> socket,
ConnectionCallback& cb)
: QuicTransportBase(evb, std::move(socket)) {
setConnectionCallback(&cb);
auto conn = std::make_unique<QuicServerConnectionState>();
conn->clientConnectionId = ConnectionId({10, 9, 8, 7});
conn->version = QuicVersion::MVFST;
transportConn = conn.get();
conn_.reset(conn.release());
aead = test::createNoOpAead();
headerCipher = test::createNoOpHeaderCipher();
connIdAlgo_ = std::make_unique<DefaultConnectionIdAlgo>();
}
~TestQuicTransport() override {
connCallback_ = nullptr;
// we need to call close in the derived class.
closeImpl(
std::make_pair(
QuicErrorCode(LocalErrorCode::SHUTTING_DOWN),
std::string("shutdown")),
false);
}
std::chrono::milliseconds getLossTimeoutRemainingTime() const {
return lossTimeout_.getTimeRemaining();
}
void onReadData(const folly::SocketAddress&, NetworkDataSingle&& data)
override {
if (!data.data) {
return;
}
folly::io::Cursor cursor(data.data.get());
while (!cursor.isAtEnd()) {
// create server chosen connId with processId = 0 and workerId = 0
ServerConnectionIdParams params(0, 0, 0);
conn_->serverConnectionId = *connIdAlgo_->encodeConnectionId(params);
auto type = static_cast<TestFrameType>(cursor.readBE<uint8_t>());
if (type == TestFrameType::CRYPTO) {
auto cryptoBuffer = decodeCryptoBuffer(cursor);
appendDataToReadBuffer(
conn_->cryptoState->initialStream, std::move(cryptoBuffer));
} else if (type == TestFrameType::EXPIRED_DATA) {
auto expiredDataFrame = decodeExpiredStreamDataFrame(cursor);
QuicStreamState* stream =
conn_->streamManager->getStream(expiredDataFrame.streamId);
if (!stream) {
continue;
}
onRecvExpiredStreamDataFrame(stream, expiredDataFrame);
} else if (type == TestFrameType::REJECTED_DATA) {
auto minDataFrame = decodeMinStreamDataFrame(cursor);
QuicStreamState* stream =
conn_->streamManager->getStream(minDataFrame.streamId);
if (!stream) {
continue;
}
onRecvMinStreamDataFrame(stream, minDataFrame, packetNum_);
packetNum_++;
} else if (type == TestFrameType::MAX_STREAMS) {
auto maxStreamsFrame = decodeMaxStreamsFrame(cursor);
if (maxStreamsFrame.isForBidirectionalStream()) {
conn_->streamManager->setMaxLocalBidirectionalStreams(
maxStreamsFrame.maxStreams);
} else {
conn_->streamManager->setMaxLocalUnidirectionalStreams(
maxStreamsFrame.maxStreams);
}
} else {
auto buffer = decodeStreamBuffer(cursor);
QuicStreamState* stream = conn_->streamManager->getStream(buffer.first);
if (!stream) {
continue;
}
appendDataToReadBuffer(*stream, std::move(buffer.second));
conn_->streamManager->updateReadableStreams(*stream);
conn_->streamManager->updatePeekableStreams(*stream);
}
}
}
void writeData() override {
writeQuicDataToSocket(
*socket_,
*conn_,
*conn_->serverConnectionId,
*conn_->clientConnectionId,
*aead,
*headerCipher,
*conn_->version,
conn_->transportSettings.writeConnectionDataPacketsLimit);
}
bool hasWriteCipher() const {
return conn_->oneRttWriteCipher != nullptr;
}
std::shared_ptr<QuicTransportBase> sharedGuard() override {
return shared_from_this();
}
QuicConnectionStateBase& getConnectionState() {
return *conn_;
}
void closeTransport() {
transportClosed = true;
}
void AckTimeout() {
ackTimeoutExpired();
}
void setIdleTimeout() {
setIdleTimer();
}
void invokeIdleTimeout() {
idleTimeout_.timeoutExpired();
}
void invokeAckTimeout() {
ackTimeout_.timeoutExpired();
}
void invokeSendPing(
quic::QuicSocket::PingCallback* cb,
std::chrono::milliseconds interval) {
sendPing(cb, interval);
}
void invokeCancelPingTimeout() {
pingTimeout_.cancelTimeout();
}
void invokeHandlePingCallback() {
handlePingCallback();
}
bool isPingTimeoutScheduled() {
if (pingTimeout_.isScheduled()) {
return true;
}
return false;
}
auto& writeLooper() {
return writeLooper_;
}
void unbindConnection() {}
void onReadError(const folly::AsyncSocketException&) noexcept {}
void addDataToStream(StreamId id, StreamBuffer data) {
auto buf = encodeStreamBuffer(id, std::move(data));
SocketAddress addr("127.0.0.1", 1000);
onNetworkData(addr, NetworkData(std::move(buf), Clock::now()));
}
void addCryptoData(StreamBuffer data) {
auto buf = encodeCryptoBuffer(std::move(data));
SocketAddress addr("127.0.0.1", 1000);
onNetworkData(addr, NetworkData(std::move(buf), Clock::now()));
}
void addExpiredStreamDataFrameToStream(ExpiredStreamDataFrame frame) {
auto buf = encodeExpiredStreamDataFrame(frame);
SocketAddress addr("127.0.0.1", 1000);
onNetworkData(addr, NetworkData(std::move(buf), Clock::now()));
}
void addMinStreamDataFrameToStream(MinStreamDataFrame frame) {
auto buf = encodeMinStreamDataFrame(frame);
SocketAddress addr("127.0.0.1", 1000);
onNetworkData(addr, NetworkData(std::move(buf), Clock::now()));
}
void addMaxStreamsFrame(MaxStreamsFrame frame) {
auto buf = encodeMaxStreamsFrame(frame);
SocketAddress addr("127.0.0.1", 1000);
onNetworkData(addr, NetworkData(std::move(buf), Clock::now()));
}
void addStreamReadError(StreamId id, QuicErrorCode ex) {
QuicStreamState* stream = conn_->streamManager->getStream(id);
stream->streamReadError = ex;
conn_->streamManager->updateReadableStreams(*stream);
conn_->streamManager->updatePeekableStreams(*stream);
updateReadLooper();
}
void closeStream(StreamId id) {
QuicStreamState* stream = conn_->streamManager->getStream(id);
stream->sendState = StreamSendState::Closed_E;
stream->recvState = StreamRecvState::Closed_E;
conn_->streamManager->addClosed(id);
auto deliveryCb = deliveryCallbacks_.find(id);
if (deliveryCb != deliveryCallbacks_.end()) {
for (auto& cbs : deliveryCb->second) {
ByteEvent event = {};
event.id = id;
event.offset = cbs.first;
event.type = ByteEvent::Type::ACK;
event.srtt = stream->conn.lossState.srtt;
cbs.second->onByteEvent(event);
if (closeState_ != CloseState::OPEN) {
break;
}
}
deliveryCallbacks_.erase(deliveryCb);
}
SocketAddress addr("127.0.0.1", 1000);
// some fake data to trigger close behavior.
auto buf = encodeStreamBuffer(
id,
StreamBuffer(IOBuf::create(0), stream->maxOffsetObserved + 1, true));
auto networkData = NetworkData(std::move(buf), Clock::now());
onNetworkData(addr, std::move(networkData));
}
QuicStreamState* getStream(StreamId id) {
return conn_->streamManager->getStream(id);
}
void setServerConnectionId() {
// create server chosen connId with processId = 0 and workerId = 0
ServerConnectionIdParams params(0, 0, 0);
conn_->serverConnectionId = *connIdAlgo_->encodeConnectionId(params);
}
void driveReadCallbacks() {
getEventBase()->loopOnce();
}
QuicErrorCode getConnectionError() {
return conn_->localConnectionError->first;
}
bool isClosed() const noexcept {
return closeState_ == CloseState::CLOSED;
}
void closeWithoutWrite() {
closeImpl(folly::none, false, false);
}
void invokeWriteSocketData() {
writeSocketData();
}
QuicServerConnectionState* transportConn;
std::unique_ptr<Aead> aead;
std::unique_ptr<PacketNumberCipher> headerCipher;
std::unique_ptr<ConnectionIdAlgo> connIdAlgo_;
bool transportClosed{false};
PacketNum packetNum_{0};
};
class QuicTransportImplTest : public Test {
public:
void SetUp() override {
evb = std::make_unique<folly::EventBase>();
auto socket =
std::make_unique<NiceMock<folly::test::MockAsyncUDPSocket>>(evb.get());
socketPtr = socket.get();
transport = std::make_shared<TestQuicTransport>(
evb.get(), std::move(socket), connCallback);
auto& conn = *transport->transportConn;
conn.flowControlState.peerAdvertisedInitialMaxStreamOffsetBidiLocal =
kDefaultStreamWindowSize;
conn.flowControlState.peerAdvertisedInitialMaxStreamOffsetBidiRemote =
kDefaultStreamWindowSize;
conn.flowControlState.peerAdvertisedInitialMaxStreamOffsetUni =
kDefaultStreamWindowSize;
conn.flowControlState.peerAdvertisedMaxOffset =
kDefaultConnectionWindowSize;
conn.streamManager->setMaxLocalBidirectionalStreams(
kDefaultMaxStreamsBidirectional);
conn.streamManager->setMaxLocalUnidirectionalStreams(
kDefaultMaxStreamsUnidirectional);
}
protected:
std::unique_ptr<folly::EventBase> evb;
NiceMock<MockConnectionCallback> connCallback;
std::shared_ptr<TestQuicTransport> transport;
folly::test::MockAsyncUDPSocket* socketPtr;
};
class QuicTransportImplTestClose : public QuicTransportImplTest,
public testing::WithParamInterface<bool> {};
INSTANTIATE_TEST_CASE_P(
QuicTransportImplTest,
QuicTransportImplTestClose,
Values(true, false));
TEST_F(QuicTransportImplTest, AckTimeoutExpiredWillResetTimeoutFlag) {
transport->invokeAckTimeout();
EXPECT_FALSE(transport->transportConn->pendingEvents.scheduleAckTimeout);
}
TEST_F(QuicTransportImplTest, IdleTimeoutExpiredDestroysTransport) {
EXPECT_CALL(connCallback, onConnectionEnd()).WillOnce(Invoke([&]() {
transport = nullptr;
}));
transport->invokeIdleTimeout();
}
TEST_F(QuicTransportImplTest, WriteAckPacketUnsetsLooper) {
// start looper in running state first
transport->writeLooper()->run(true);
// Write data which will be acked immediately.
PacketNum packetSeen = 10;
bool pktHasRetransmittableData = true;
bool pktHasCryptoData = true;
updateAckState(
*transport->transportConn,
PacketNumberSpace::Initial,
packetSeen,
pktHasRetransmittableData,
pktHasCryptoData,
Clock::now());
ASSERT_TRUE(transport->transportConn->ackStates.initialAckState
.needsToSendAckImmediately);
// Trigger the loop callback. This will trigger writes and we assume this will
// write the acks since we have nothing else to write.
transport->writeLooper()->runLoopCallback();
EXPECT_FALSE(transport->transportConn->pendingEvents.scheduleAckTimeout);
EXPECT_FALSE(transport->writeLooper()->isLoopCallbackScheduled());
}
TEST_F(QuicTransportImplTest, ReadCallbackDataAvailable) {
auto stream1 = transport->createBidirectionalStream().value();
auto stream2 = transport->createBidirectionalStream().value();
StreamId stream3 = 0x6;
NiceMock<MockReadCallback> readCb1;
NiceMock<MockReadCallback> readCb2;
NiceMock<MockReadCallback> readCb3;
transport->setReadCallback(stream1, &readCb1);
transport->setReadCallback(stream2, &readCb2);
transport->addDataToStream(
stream1, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
transport->addDataToStream(
stream2,
StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 10));
transport->addDataToStream(
stream3, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
transport->setReadCallback(stream3, &readCb3);
EXPECT_CALL(readCb1, readAvailable(stream1));
EXPECT_CALL(readCb3, readAvailable(stream3));
transport->driveReadCallbacks();
transport->addDataToStream(
stream2, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
EXPECT_CALL(readCb1, readAvailable(stream1));
EXPECT_CALL(readCb2, readAvailable(stream2));
EXPECT_CALL(readCb3, readAvailable(stream3));
transport->driveReadCallbacks();
EXPECT_CALL(readCb1, readAvailable(stream1));
EXPECT_CALL(readCb2, readAvailable(stream2));
EXPECT_CALL(readCb3, readAvailable(stream3));
transport->driveReadCallbacks();
EXPECT_CALL(readCb2, readAvailable(stream2));
EXPECT_CALL(readCb3, readAvailable(stream3));
transport->setReadCallback(stream1, nullptr);
transport->driveReadCallbacks();
transport.reset();
}
TEST_F(QuicTransportImplTest, ReadCallbackDataAvailableOrdered) {
auto transportSettings = transport->getTransportSettings();
transportSettings.orderedReadCallbacks = true;
transport->setTransportSettings(transportSettings);
auto stream1 = transport->createBidirectionalStream().value();
auto stream2 = transport->createBidirectionalStream().value();
StreamId stream3 = 0x6;
InSequence s;
NiceMock<MockReadCallback> readCb1;
NiceMock<MockReadCallback> readCb2;
NiceMock<MockReadCallback> readCb3;
transport->setReadCallback(stream1, &readCb1);
transport->setReadCallback(stream2, &readCb2);
transport->addDataToStream(
stream1, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
transport->addDataToStream(
stream2,
StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 10));
transport->addDataToStream(
stream3, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
transport->setReadCallback(stream3, &readCb3);
EXPECT_CALL(readCb1, readAvailable(stream1));
EXPECT_CALL(readCb3, readAvailable(stream3));
transport->driveReadCallbacks();
transport->addDataToStream(
stream2, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
EXPECT_CALL(readCb1, readAvailable(stream1));
EXPECT_CALL(readCb2, readAvailable(stream2));
EXPECT_CALL(readCb3, readAvailable(stream3));
transport->driveReadCallbacks();
EXPECT_CALL(readCb1, readAvailable(stream1));
EXPECT_CALL(readCb2, readAvailable(stream2));
EXPECT_CALL(readCb3, readAvailable(stream3));
transport->driveReadCallbacks();
EXPECT_CALL(readCb2, readAvailable(stream2));
EXPECT_CALL(readCb3, readAvailable(stream3));
transport->setReadCallback(stream1, nullptr);
transport->driveReadCallbacks();
transport.reset();
}
TEST_F(QuicTransportImplTest, ReadCallbackChangeReadCallback) {
auto stream1 = transport->createBidirectionalStream().value();
NiceMock<MockReadCallback> readCb1;
NiceMock<MockReadCallback> readCb2;
EXPECT_TRUE(transport->setReadCallback(stream1, nullptr).hasError());
transport->setReadCallback(stream1, &readCb1);
transport->addDataToStream(
stream1, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
EXPECT_CALL(readCb1, readAvailable(stream1));
transport->driveReadCallbacks();
transport->setReadCallback(stream1, &readCb2);
EXPECT_CALL(readCb2, readAvailable(stream1));
transport->driveReadCallbacks();
auto& conn = transport->getConnectionState();
EXPECT_EQ(conn.pendingEvents.frames.size(), 0);
transport->setReadCallback(stream1, nullptr);
EXPECT_EQ(conn.pendingEvents.frames.size(), 1);
EXPECT_CALL(readCb2, readAvailable(_)).Times(0);
transport->driveReadCallbacks();
EXPECT_TRUE(transport->setReadCallback(stream1, &readCb2).hasError());
transport.reset();
}
TEST_F(QuicTransportImplTest, ReadCallbackUnsetAll) {
auto stream1 = transport->createBidirectionalStream().value();
auto stream2 = transport->createBidirectionalStream().value();
NiceMock<MockReadCallback> readCb1;
NiceMock<MockReadCallback> readCb2;
// Set the read callbacks, and then add data to the stream, and see that the
// callbacks are, in fact, called.
transport->setReadCallback(stream1, &readCb1);
transport->setReadCallback(stream2, &readCb2);
EXPECT_CALL(readCb1, readAvailable(stream1));
EXPECT_CALL(readCb2, readAvailable(stream2));
transport->addDataToStream(
stream1, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
transport->addDataToStream(
stream2, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
transport->driveReadCallbacks();
// Unset all of the read callbacks, then add data to the stream, and see that
// the read callbacks are not called.
transport->unsetAllReadCallbacks();
EXPECT_CALL(readCb1, readAvailable(stream1)).Times(0);
EXPECT_CALL(readCb2, readAvailable(stream2)).Times(0);
transport->addDataToStream(
stream1, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
transport->addDataToStream(
stream2, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
transport->driveReadCallbacks();
transport.reset();
}
TEST_F(QuicTransportImplTest, ReadCallbackPauseResume) {
auto stream1 = transport->createBidirectionalStream().value();
auto stream2 = transport->createBidirectionalStream().value();
NiceMock<MockReadCallback> readCb1;
NiceMock<MockReadCallback> readCb2;
transport->setReadCallback(stream1, &readCb1);
transport->setReadCallback(stream2, &readCb2);
transport->addDataToStream(
stream1, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
transport->addDataToStream(
stream2, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
auto res = transport->pauseRead(stream1);
EXPECT_TRUE(res);
EXPECT_CALL(readCb1, readAvailable(stream1)).Times(0);
EXPECT_CALL(readCb2, readAvailable(stream2));
transport->driveReadCallbacks();
res = transport->resumeRead(stream1);
EXPECT_TRUE(res);
res = transport->pauseRead(stream2);
EXPECT_CALL(readCb1, readAvailable(stream1));
EXPECT_CALL(readCb2, readAvailable(stream2)).Times(0);
transport->driveReadCallbacks();
auto stream3 = transport->createBidirectionalStream().value();
res = transport->pauseRead(stream3);
EXPECT_FALSE(res);
EXPECT_EQ(LocalErrorCode::APP_ERROR, res.error());
transport.reset();
}
TEST_F(QuicTransportImplTest, ReadCallbackNoCallbackSet) {
auto stream1 = transport->createBidirectionalStream().value();
transport->addDataToStream(
stream1,
StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 10));
transport->driveReadCallbacks();
transport->addDataToStream(
stream1, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
transport->driveReadCallbacks();
transport.reset();
}
TEST_F(QuicTransportImplTest, ReadCallbackInvalidStream) {
NiceMock<MockReadCallback> readCb1;
StreamId invalidStream = 10;
EXPECT_TRUE(transport->setReadCallback(invalidStream, &readCb1).hasError());
transport.reset();
}
TEST_F(QuicTransportImplTest, ReadData) {
auto stream1 = transport->createBidirectionalStream().value();
NiceMock<MockReadCallback> readCb1;
auto readData = folly::IOBuf::copyBuffer("actual stream data");
transport->setReadCallback(stream1, &readCb1);
EXPECT_CALL(readCb1, readAvailable(stream1));
transport->addDataToStream(stream1, StreamBuffer(readData->clone(), 0));
transport->driveReadCallbacks();
transport->read(stream1, 10).thenOrThrow([&](std::pair<Buf, bool> data) {
IOBufEqualTo eq;
auto expected = readData->clone();
expected->trimEnd(expected->length() - 10);
EXPECT_TRUE(eq(*data.first, *expected));
});
EXPECT_CALL(readCb1, readAvailable(stream1));
transport->driveReadCallbacks();
transport->read(stream1, 100).thenOrThrow([&](std::pair<Buf, bool> data) {
IOBufEqualTo eq;
auto expected = readData->clone();
expected->trimStart(10);
EXPECT_TRUE(eq(*data.first, *expected));
});
transport->driveReadCallbacks();
transport.reset();
}
// TODO The finest copypasta around. We need a better story for parameterizing
// unidirectional vs. bidirectional.
TEST_F(QuicTransportImplTest, UnidirectionalReadData) {
auto stream1 = 0x6;
NiceMock<MockReadCallback> readCb1;
auto readData = folly::IOBuf::copyBuffer("actual stream data");
transport->addDataToStream(stream1, StreamBuffer(readData->clone(), 0));
transport->setReadCallback(stream1, &readCb1);
EXPECT_CALL(readCb1, readAvailable(stream1));
transport->driveReadCallbacks();
transport->read(stream1, 10).thenOrThrow([&](std::pair<Buf, bool> data) {
IOBufEqualTo eq;
auto expected = readData->clone();
expected->trimEnd(expected->length() - 10);
EXPECT_TRUE(eq(*data.first, *expected));
});
EXPECT_CALL(readCb1, readAvailable(stream1));
transport->driveReadCallbacks();
transport->read(stream1, 100).thenOrThrow([&](std::pair<Buf, bool> data) {
IOBufEqualTo eq;
auto expected = readData->clone();
expected->trimStart(10);
EXPECT_TRUE(eq(*data.first, *expected));
});
transport->driveReadCallbacks();
transport.reset();
}
TEST_F(QuicTransportImplTest, ReadDataUnsetReadCallbackInCallback) {
auto stream1 = transport->createBidirectionalStream().value();
auto readData = folly::IOBuf::copyBuffer("actual stream data");
NiceMock<MockReadCallback> readCb1;
transport->setReadCallback(stream1, &readCb1);
transport->addDataToStream(stream1, StreamBuffer(readData->clone(), 0, true));
EXPECT_CALL(readCb1, readAvailable(stream1))
.WillOnce(Invoke(
[&](StreamId id) { transport->setReadCallback(id, nullptr); }));
transport->driveReadCallbacks();
transport->driveReadCallbacks();
transport->getEventBase()->loop();
transport.reset();
}
TEST_F(QuicTransportImplTest, ReadDataNoCallback) {
auto stream1 = transport->createBidirectionalStream().value();
auto readData = folly::IOBuf::copyBuffer("actual stream data");
transport->addDataToStream(stream1, StreamBuffer(readData->clone(), 0, true));
transport->driveReadCallbacks();
transport->read(stream1, 100).thenOrThrow([&](std::pair<Buf, bool> data) {
IOBufEqualTo eq;
EXPECT_TRUE(eq(*data.first, *readData));
EXPECT_TRUE(data.second);
});
transport.reset();
}
TEST_F(QuicTransportImplTest, ReadCallbackForClientOutOfOrderStream) {
InSequence dummy;
StreamId clientOutOfOrderStream = 96;
StreamId clientOutOfOrderStream2 = 76;
auto readData = folly::IOBuf::copyBuffer("actual stream data");
NiceMock<MockReadCallback> streamRead;
for (StreamId start = 0x00; start <= clientOutOfOrderStream;
start += kStreamIncrement) {
EXPECT_CALL(connCallback, onNewBidirectionalStream(start))
.WillOnce(Invoke(
[&](StreamId id) { transport->setReadCallback(id, &streamRead); }));
}
EXPECT_CALL(streamRead, readAvailable(clientOutOfOrderStream))
.WillOnce(Invoke([&](StreamId id) {
transport->read(id, 100).thenOrThrow([&](std::pair<Buf, bool> data) {
IOBufEqualTo eq;
EXPECT_TRUE(eq(*data.first, *readData));
EXPECT_TRUE(data.second);
});
}));
transport->addDataToStream(
clientOutOfOrderStream, StreamBuffer(readData->clone(), 0, true));
transport->driveReadCallbacks();
transport->addDataToStream(
clientOutOfOrderStream2, StreamBuffer(readData->clone(), 0, true));
EXPECT_CALL(streamRead, readAvailable(clientOutOfOrderStream2))
.WillOnce(Invoke([&](StreamId id) {
transport->read(id, 100).thenOrThrow([&](std::pair<Buf, bool> data) {
IOBufEqualTo eq;
EXPECT_TRUE(eq(*data.first, *readData));
EXPECT_TRUE(data.second);
});
}));
transport->driveReadCallbacks();
transport.reset();
}
TEST_F(QuicTransportImplTest, ReadDataInvalidStream) {
StreamId invalidStream = 10;
EXPECT_THROW(
transport->read(invalidStream, 100).thenOrThrow([&](auto) {}),
folly::Unexpected<LocalErrorCode>::BadExpectedAccess);
transport.reset();
}
TEST_F(QuicTransportImplTest, ReadError) {
auto stream1 = transport->createBidirectionalStream().value();
NiceMock<MockReadCallback> readCb1;
auto readData = folly::IOBuf::copyBuffer("actual stream data");
transport->setReadCallback(stream1, &readCb1);
EXPECT_CALL(
readCb1, readError(stream1, IsError(LocalErrorCode::STREAM_CLOSED)));
transport->addStreamReadError(stream1, LocalErrorCode::STREAM_CLOSED);
transport->driveReadCallbacks();
transport.reset();
}
TEST_F(QuicTransportImplTest, ReadCallbackDeleteTransport) {
auto stream1 = transport->createBidirectionalStream().value();
auto stream2 = transport->createBidirectionalStream().value();
NiceMock<MockReadCallback> readCb1;
NiceMock<MockReadCallback> readCb2;
transport->setReadCallback(stream1, &readCb1);
transport->setReadCallback(stream2, &readCb2);
transport->addStreamReadError(stream1, LocalErrorCode::NO_ERROR);
transport->addDataToStream(
stream2, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
EXPECT_CALL(readCb1, readError(stream1, _)).WillOnce(Invoke([&](auto, auto) {
transport.reset();
}));
EXPECT_CALL(readCb2, readAvailable(stream2));
transport->driveReadCallbacks();
transport.reset();
}
TEST_F(QuicTransportImplTest, onNewBidirectionalStreamCallback) {
auto readData = folly::IOBuf::copyBuffer("actual stream data");
StreamId stream2 = 0x00;
EXPECT_CALL(connCallback, onNewBidirectionalStream(stream2));
transport->addDataToStream(stream2, StreamBuffer(readData->clone(), 0, true));
StreamId stream3 = 0x04;
EXPECT_CALL(connCallback, onNewBidirectionalStream(stream3));
transport->addDataToStream(stream3, StreamBuffer(readData->clone(), 0, true));
StreamId uniStream3 = 0xa;
EXPECT_CALL(
connCallback,
onNewUnidirectionalStream(uniStream3 - 2 * kStreamIncrement));
EXPECT_CALL(
connCallback, onNewUnidirectionalStream(uniStream3 - kStreamIncrement));
EXPECT_CALL(connCallback, onNewUnidirectionalStream(uniStream3));
transport->addDataToStream(
uniStream3, StreamBuffer(readData->clone(), 0, true));
transport.reset();
}
TEST_F(QuicTransportImplTest, onNewStreamCallbackDoesNotRemove) {
auto readData = folly::IOBuf::copyBuffer("actual stream data");
StreamId uniStream1 = 2;
StreamId uniStream2 = uniStream1 + kStreamIncrement;
EXPECT_CALL(connCallback, onNewUnidirectionalStream(uniStream1))
.WillOnce(Invoke([&](StreamId id) {
ASSERT_FALSE(transport->read(id, 100).hasError());
}));
EXPECT_CALL(connCallback, onNewUnidirectionalStream(uniStream2))
.WillOnce(Invoke([&](StreamId id) {
ASSERT_FALSE(transport->read(id, 100).hasError());
}));
transport->addDataToStream(
uniStream1, StreamBuffer(readData->clone(), 0, true));
transport->addDataToStream(
uniStream2, StreamBuffer(readData->clone(), 0, true));
transport.reset();
}
TEST_F(QuicTransportImplTest, onNewBidirectionalStreamStreamOutOfOrder) {
InSequence dummy;
auto readData = folly::IOBuf::copyBuffer("actual stream data");
StreamId biStream1 = 28;
StreamId uniStream1 = 30;
for (StreamId id = 0x00; id <= biStream1; id += kStreamIncrement) {
EXPECT_CALL(connCallback, onNewBidirectionalStream(id));
}
for (StreamId id = 0x02; id <= uniStream1; id += kStreamIncrement) {
EXPECT_CALL(connCallback, onNewUnidirectionalStream(id));
}
transport->addDataToStream(
biStream1, StreamBuffer(readData->clone(), 0, true));
transport->addDataToStream(
uniStream1, StreamBuffer(readData->clone(), 0, true));
StreamId biStream2 = 56;
StreamId uniStream2 = 38;
for (StreamId id = biStream1 + kStreamIncrement; id <= biStream2;
id += kStreamIncrement) {
EXPECT_CALL(connCallback, onNewBidirectionalStream(id));
}
for (StreamId id = uniStream1 + kStreamIncrement; id <= uniStream2;
id += kStreamIncrement) {
EXPECT_CALL(connCallback, onNewUnidirectionalStream(id));
}
transport->addDataToStream(
biStream2, StreamBuffer(readData->clone(), 0, true));
transport->addDataToStream(
uniStream2, StreamBuffer(readData->clone(), 0, true));
transport.reset();
}
TEST_F(QuicTransportImplTest, onNewBidirectionalStreamSetReadCallback) {
InSequence dummy;
auto readData = folly::IOBuf::copyBuffer("actual stream data");
transport->addCryptoData(StreamBuffer(readData->clone(), 0, true));
NiceMock<MockReadCallback> stream2Read;
StreamId stream2 = 0x00;
EXPECT_CALL(connCallback, onNewBidirectionalStream(stream2))
.WillOnce(Invoke(
[&](StreamId id) { transport->setReadCallback(id, &stream2Read); }));
transport->addDataToStream(stream2, StreamBuffer(readData->clone(), 0, true));
StreamId stream3 = 0x10;
NiceMock<MockReadCallback> streamRead;
for (StreamId start = stream2 + kStreamIncrement; start <= stream3;
start += kStreamIncrement) {
EXPECT_CALL(connCallback, onNewBidirectionalStream(start))
.WillOnce(Invoke(
[&](StreamId id) { transport->setReadCallback(id, &streamRead); }));
}
transport->addDataToStream(stream3, StreamBuffer(readData->clone(), 0, true));
evb->loopOnce();
transport.reset();
}
TEST_F(QuicTransportImplTest, OnInvalidServerStream) {
EXPECT_CALL(
connCallback,
onConnectionError(IsError(TransportErrorCode::STREAM_STATE_ERROR)));
auto readData = folly::IOBuf::copyBuffer("actual stream data");
StreamId stream1 = 29;
transport->addDataToStream(stream1, StreamBuffer(readData->clone(), 0, true));
EXPECT_TRUE(transport->isClosed());
EXPECT_EQ(
transport->getConnectionError(),
QuicErrorCode(TransportErrorCode::STREAM_STATE_ERROR));
transport.reset();
}
TEST_F(QuicTransportImplTest, CreateStream) {
auto streamId = transport->createBidirectionalStream().value();
auto streamId2 = transport->createBidirectionalStream().value();
auto streamId3 = transport->createBidirectionalStream().value();
auto streamId4 = transport->createBidirectionalStream().value();
EXPECT_EQ(streamId2, streamId + kStreamIncrement);
EXPECT_EQ(streamId3, streamId2 + kStreamIncrement);
EXPECT_EQ(streamId4, streamId3 + kStreamIncrement);
transport.reset();
}
TEST_F(QuicTransportImplTest, CreateUnidirectionalStream) {
auto streamId = transport->createUnidirectionalStream().value();
auto streamId2 = transport->createUnidirectionalStream().value();
auto streamId3 = transport->createUnidirectionalStream().value();
auto streamId4 = transport->createUnidirectionalStream().value();
EXPECT_EQ(streamId2, streamId + kStreamIncrement);
EXPECT_EQ(streamId3, streamId2 + kStreamIncrement);
EXPECT_EQ(streamId4, streamId3 + kStreamIncrement);
transport.reset();
}
TEST_F(QuicTransportImplTest, CreateBothStream) {
auto uniStreamId = transport->createUnidirectionalStream().value();
auto biStreamId = transport->createBidirectionalStream().value();
auto uniStreamId2 = transport->createUnidirectionalStream().value();
auto biStreamId2 = transport->createBidirectionalStream().value();
auto uniStreamId3 = transport->createUnidirectionalStream().value();
auto biStreamId3 = transport->createBidirectionalStream().value();
auto uniStreamId4 = transport->createUnidirectionalStream().value();
auto biStreamId4 = transport->createBidirectionalStream().value();
EXPECT_EQ(uniStreamId2, uniStreamId + kStreamIncrement);
EXPECT_EQ(uniStreamId3, uniStreamId2 + kStreamIncrement);
EXPECT_EQ(uniStreamId4, uniStreamId3 + kStreamIncrement);
EXPECT_EQ(biStreamId2, biStreamId + kStreamIncrement);
EXPECT_EQ(biStreamId3, biStreamId2 + kStreamIncrement);
EXPECT_EQ(biStreamId4, biStreamId3 + kStreamIncrement);
transport.reset();
}
TEST_F(QuicTransportImplTest, CreateStreamLimitsBidirectionalZero) {
transport->transportConn->streamManager->setMaxLocalBidirectionalStreams(
0, true);
EXPECT_EQ(transport->getNumOpenableBidirectionalStreams(), 0);
auto result = transport->createBidirectionalStream();
ASSERT_FALSE(result);
EXPECT_EQ(result.error(), LocalErrorCode::STREAM_LIMIT_EXCEEDED);
result = transport->createUnidirectionalStream();
EXPECT_TRUE(result);
transport.reset();
}
TEST_F(QuicTransportImplTest, CreateStreamLimitsUnidirectionalZero) {
transport->transportConn->streamManager->setMaxLocalUnidirectionalStreams(
0, true);
EXPECT_EQ(transport->getNumOpenableUnidirectionalStreams(), 0);
auto result = transport->createUnidirectionalStream();
ASSERT_FALSE(result);
EXPECT_EQ(result.error(), LocalErrorCode::STREAM_LIMIT_EXCEEDED);
result = transport->createBidirectionalStream();
EXPECT_TRUE(result);
transport.reset();
}
TEST_F(QuicTransportImplTest, CreateStreamLimitsBidirectionalFew) {
transport->transportConn->streamManager->setMaxLocalBidirectionalStreams(
10, true);
EXPECT_EQ(transport->getNumOpenableBidirectionalStreams(), 10);
for (int i = 0; i < 10; i++) {
EXPECT_TRUE(transport->createBidirectionalStream());
EXPECT_EQ(transport->getNumOpenableBidirectionalStreams(), 10 - (i + 1));
}
auto result = transport->createBidirectionalStream();
ASSERT_FALSE(result);
EXPECT_EQ(result.error(), LocalErrorCode::STREAM_LIMIT_EXCEEDED);
EXPECT_TRUE(transport->createUnidirectionalStream());
transport.reset();
}
TEST_F(QuicTransportImplTest, CreateStreamLimitsUnidirectionalFew) {
transport->transportConn->streamManager->setMaxLocalUnidirectionalStreams(
10, true);
EXPECT_EQ(transport->getNumOpenableUnidirectionalStreams(), 10);
for (int i = 0; i < 10; i++) {
EXPECT_TRUE(transport->createUnidirectionalStream());
EXPECT_EQ(transport->getNumOpenableUnidirectionalStreams(), 10 - (i + 1));
}
auto result = transport->createUnidirectionalStream();
ASSERT_FALSE(result);
EXPECT_EQ(result.error(), LocalErrorCode::STREAM_LIMIT_EXCEEDED);
EXPECT_TRUE(transport->createBidirectionalStream());
transport.reset();
}
TEST_F(QuicTransportImplTest, onBidiStreamsAvailableCallback) {
transport->transportConn->streamManager->setMaxLocalBidirectionalStreams(
0, /*force=*/true);
EXPECT_CALL(connCallback, onBidirectionalStreamsAvailable(_))
.WillOnce(Invoke([](uint64_t numAvailableStreams) {
EXPECT_EQ(numAvailableStreams, 1);
}));
transport->addMaxStreamsFrame(MaxStreamsFrame(1, /*isBidirectionalIn=*/true));
EXPECT_EQ(transport->getNumOpenableBidirectionalStreams(), 1);
// same value max streams frame doesn't trigger callback
transport->addMaxStreamsFrame(MaxStreamsFrame(1, /*isBidirectionalIn=*/true));
}
TEST_F(QuicTransportImplTest, onBidiStreamsAvailableCallbackAfterExausted) {
transport->transportConn->streamManager->setMaxLocalBidirectionalStreams(
0, /*force=*/true);
EXPECT_CALL(connCallback, onBidirectionalStreamsAvailable(_)).Times(2);
transport->addMaxStreamsFrame(MaxStreamsFrame(
1,
/*isBidirectionalIn=*/true));
EXPECT_EQ(transport->getNumOpenableBidirectionalStreams(), 1);
auto result = transport->createBidirectionalStream();
EXPECT_TRUE(result);
EXPECT_EQ(transport->getNumOpenableBidirectionalStreams(), 0);
transport->addMaxStreamsFrame(MaxStreamsFrame(
2,
/*isBidirectionalIn=*/true));
}
TEST_F(QuicTransportImplTest, oneUniStreamsAvailableCallback) {
transport->transportConn->streamManager->setMaxLocalUnidirectionalStreams(
0, /*force=*/true);
EXPECT_CALL(connCallback, onUnidirectionalStreamsAvailable(_))
.WillOnce(Invoke([](uint64_t numAvailableStreams) {
EXPECT_EQ(numAvailableStreams, 1);
}));
transport->addMaxStreamsFrame(
MaxStreamsFrame(1, /*isBidirectionalIn=*/false));
EXPECT_EQ(transport->getNumOpenableUnidirectionalStreams(), 1);
// same value max streams frame doesn't trigger callback
transport->addMaxStreamsFrame(
MaxStreamsFrame(1, /*isBidirectionalIn=*/false));
}
TEST_F(QuicTransportImplTest, onUniStreamsAvailableCallbackAfterExausted) {
transport->transportConn->streamManager->setMaxLocalUnidirectionalStreams(
0, /*force=*/true);
EXPECT_CALL(connCallback, onUnidirectionalStreamsAvailable(_)).Times(2);
transport->addMaxStreamsFrame(
MaxStreamsFrame(1, /*isBidirectionalIn=*/false));
EXPECT_EQ(transport->getNumOpenableUnidirectionalStreams(), 1);
auto result = transport->createUnidirectionalStream();
EXPECT_TRUE(result);
EXPECT_EQ(transport->getNumOpenableUnidirectionalStreams(), 0);
transport->addMaxStreamsFrame(
MaxStreamsFrame(2, /*isBidirectionalIn=*/false));
}
TEST_F(QuicTransportImplTest, ReadDataAlsoChecksLossAlarm) {
transport->transportConn->oneRttWriteCipher = test::createNoOpAead();
auto stream = transport->createBidirectionalStream().value();
transport->writeChain(stream, folly::IOBuf::copyBuffer("Hey"), true, false);
// Artificially stop the write looper so that the read can trigger it.
transport->writeLooper()->stop();
transport->addDataToStream(
stream, StreamBuffer(folly::IOBuf::copyBuffer("Data"), 0));
EXPECT_TRUE(transport->writeLooper()->isRunning());
// Drive the event loop once to allow for the write looper to continue.
evb->loopOnce();
EXPECT_TRUE(transport->isLossTimeoutScheduled());
transport.reset();
}
TEST_F(QuicTransportImplTest, ConnectionErrorOnWrite) {
transport->transportConn->oneRttWriteCipher = test::createNoOpAead();
auto stream = transport->createBidirectionalStream().value();
EXPECT_CALL(*socketPtr, write(_, _))
.WillOnce(SetErrnoAndReturn(ENETUNREACH, -1));
transport->writeChain(
stream, folly::IOBuf::copyBuffer("Hey"), true, false, nullptr);
transport->addDataToStream(
stream, StreamBuffer(folly::IOBuf::copyBuffer("Data"), 0));
evb->loopOnce();
EXPECT_TRUE(transport->isClosed());
EXPECT_EQ(
transport->getConnectionError(),
QuicErrorCode(LocalErrorCode::CONNECTION_ABANDONED));
}
TEST_F(QuicTransportImplTest, ReadErrorUnsanitizedErrorMsg) {
transport->setServerConnectionId();
transport->transportConn->oneRttWriteCipher = test::createNoOpAead();
auto stream = transport->createBidirectionalStream().value();
MockReadCallback rcb;
transport->setReadCallback(stream, &rcb);
EXPECT_CALL(rcb, readError(stream, _))
.Times(1)
.WillOnce(Invoke(
[](StreamId,
std::pair<QuicErrorCode, folly::Optional<folly::StringPiece>>
error) {
EXPECT_EQ("You need to calm down.", *error.second);
}));
EXPECT_CALL(*socketPtr, write(_, _)).WillOnce(Invoke([](auto&, auto&) {
throw std::runtime_error("You need to calm down.");
return 0;
}));
transport->writeChain(
stream,
folly::IOBuf::copyBuffer("You are being too loud."),
true,
false,
nullptr);
evb->loopOnce();
EXPECT_TRUE(transport->isClosed());
}
TEST_F(QuicTransportImplTest, ConnectionErrorUnhandledException) {
transport->transportConn->oneRttWriteCipher = test::createNoOpAead();
auto stream = transport->createBidirectionalStream().value();
EXPECT_CALL(
connCallback,
onConnectionError(std::make_pair(
QuicErrorCode(TransportErrorCode::INTERNAL_ERROR),
std::string("Well there's your problem"))));
EXPECT_CALL(*socketPtr, write(_, _)).WillOnce(Invoke([](auto&, auto&) {
throw std::runtime_error("Well there's your problem");
return 0;
}));
transport->writeChain(
stream, folly::IOBuf::copyBuffer("Hey"), true, false, nullptr);
transport->addDataToStream(
stream, StreamBuffer(folly::IOBuf::copyBuffer("Data"), 0));
evb->loopOnce();
EXPECT_TRUE(transport->isClosed());
EXPECT_EQ(
transport->getConnectionError(),
QuicErrorCode(TransportErrorCode::INTERNAL_ERROR));
}
TEST_F(QuicTransportImplTest, LossTimeoutNoLessThanTickInterval) {
auto tickInterval = evb->timer().getTickInterval();
transport->scheduleLossTimeout(tickInterval - 1ms);
EXPECT_NEAR(
tickInterval.count(),
transport->getLossTimeoutRemainingTime().count(),
2);
}
TEST_F(QuicTransportImplTest, CloseStreamAfterReadError) {
auto qLogger = std::make_shared<FileQLogger>(VantagePoint::Client);
transport->transportConn->qLogger = qLogger;
auto stream1 = transport->createBidirectionalStream().value();
NiceMock<MockReadCallback> readCb1;
transport->setReadCallback(stream1, &readCb1);
transport->addStreamReadError(stream1, LocalErrorCode::NO_ERROR);
transport->closeStream(stream1);
EXPECT_CALL(readCb1, readError(stream1, IsError(LocalErrorCode::NO_ERROR)));
transport->driveReadCallbacks();
EXPECT_FALSE(transport->transportConn->streamManager->streamExists(stream1));
transport.reset();
std::vector<int> indices =
getQLogEventIndices(QLogEventType::TransportStateUpdate, qLogger);
EXPECT_EQ(indices.size(), 1);
auto tmp = std::move(qLogger->logs[indices[0]]);
auto event = dynamic_cast<QLogTransportStateUpdateEvent*>(tmp.get());
EXPECT_EQ(event->update, getClosingStream("1"));
}
TEST_F(QuicTransportImplTest, CloseStreamAfterReadFin) {
auto stream2 = transport->createBidirectionalStream().value();
NiceMock<MockReadCallback> readCb2;
transport->setReadCallback(stream2, &readCb2);
transport->addDataToStream(
stream2,
StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0, true));
EXPECT_CALL(readCb2, readAvailable(stream2)).WillOnce(Invoke([&](StreamId) {
auto data = transport->read(stream2, 100);
EXPECT_TRUE(data->second);
transport->closeStream(stream2);
}));
transport->driveReadCallbacks();
EXPECT_FALSE(transport->transportConn->streamManager->streamExists(stream2));
transport.reset();
}
TEST_F(QuicTransportImplTest, CloseTransportCleansupOutstandingCounters) {
transport->transportConn->outstandings.handshakePacketsCount = 200;
transport->closeNow(folly::none);
EXPECT_EQ(0, transport->transportConn->outstandings.handshakePacketsCount);
}
TEST_F(QuicTransportImplTest, DeliveryCallbackUnsetAll) {
auto stream1 = transport->createBidirectionalStream().value();
auto stream2 = transport->createBidirectionalStream().value();
NiceMock<MockDeliveryCallback> dcb1;
NiceMock<MockDeliveryCallback> dcb2;
transport->registerDeliveryCallback(stream1, 10, &dcb1);
transport->registerDeliveryCallback(stream2, 20, &dcb2);
EXPECT_CALL(dcb1, onCanceled(_, _));
EXPECT_CALL(dcb2, onCanceled(_, _));
transport->unsetAllDeliveryCallbacks();
EXPECT_CALL(dcb1, onCanceled(_, _)).Times(0);
EXPECT_CALL(dcb2, onCanceled(_, _)).Times(0);
transport->close(folly::none);
}
TEST_F(QuicTransportImplTest, DeliveryCallbackUnsetOne) {
auto stream1 = transport->createBidirectionalStream().value();
auto stream2 = transport->createBidirectionalStream().value();
NiceMock<MockDeliveryCallback> dcb1;
NiceMock<MockDeliveryCallback> dcb2;
transport->registerDeliveryCallback(stream1, 10, &dcb1);
transport->registerDeliveryCallback(stream2, 20, &dcb2);
EXPECT_CALL(dcb1, onCanceled(_, _));
EXPECT_CALL(dcb2, onCanceled(_, _)).Times(0);
transport->cancelDeliveryCallbacksForStream(stream1);
EXPECT_CALL(dcb1, onCanceled(_, _)).Times(0);
EXPECT_CALL(dcb2, onCanceled(_, _));
transport->close(folly::none);
}
TEST_F(QuicTransportImplTest, DeliveryCallbackOnSendDataExpire) {
transport->transportConn->partialReliabilityEnabled = true;
auto stream1 = transport->createBidirectionalStream().value();
auto stream2 = transport->createBidirectionalStream().value();
NiceMock<MockDeliveryCallback> dcb1;
NiceMock<MockDeliveryCallback> dcb2;
transport->registerDeliveryCallback(stream1, 10, &dcb1);
transport->registerDeliveryCallback(stream2, 20, &dcb2);
EXPECT_CALL(dcb1, onCanceled(_, _));
EXPECT_CALL(dcb2, onCanceled(_, _)).Times(0);
auto res = transport->sendDataExpired(stream1, 11);
EXPECT_EQ(res.hasError(), false);
Mock::VerifyAndClearExpectations(&dcb1);
Mock::VerifyAndClearExpectations(&dcb2);
EXPECT_CALL(dcb1, onCanceled(_, _)).Times(0);
EXPECT_CALL(dcb2, onCanceled(_, _));
transport->close(folly::none);
}
TEST_F(QuicTransportImplTest, DeliveryCallbackOnSendDataExpireCallbacksLeft) {
transport->transportConn->partialReliabilityEnabled = true;
auto stream1 = transport->createBidirectionalStream().value();
auto stream2 = transport->createBidirectionalStream().value();
NiceMock<MockDeliveryCallback> dcb1;
NiceMock<MockDeliveryCallback> dcb2;
transport->registerDeliveryCallback(stream1, 10, &dcb1);
transport->registerDeliveryCallback(stream1, 20, &dcb1);
transport->registerDeliveryCallback(stream2, 20, &dcb2);
EXPECT_CALL(dcb1, onCanceled(_, _));
EXPECT_CALL(dcb2, onCanceled(_, _)).Times(0);
auto res = transport->sendDataExpired(stream1, 11);
EXPECT_EQ(res.hasError(), false);
Mock::VerifyAndClearExpectations(&dcb1);
Mock::VerifyAndClearExpectations(&dcb2);
EXPECT_CALL(dcb2, onCanceled(_, _));
EXPECT_CALL(dcb1, onCanceled(_, _)).Times(1);
transport->close(folly::none);
}
TEST_F(QuicTransportImplTest, RegisterDeliveryCallbackLowerThanExpected) {
auto stream = transport->createBidirectionalStream().value();
NiceMock<MockDeliveryCallback> dcb1;
NiceMock<MockDeliveryCallback> dcb2;
NiceMock<MockDeliveryCallback> dcb3;
transport->registerDeliveryCallback(stream, 10, &dcb1);
transport->registerDeliveryCallback(stream, 20, &dcb2);
auto streamState = transport->transportConn->streamManager->getStream(stream);
streamState->currentWriteOffset = 7;
streamState->ackedIntervals.insert(0, 6);
EXPECT_CALL(dcb3, onDeliveryAck(_, _, _))
.WillOnce(Invoke(
[](auto /* id */, auto offset, auto) { EXPECT_EQ(offset, 2); }));
transport->registerDeliveryCallback(stream, 2, &dcb3);
evb->loopOnce();
EXPECT_CALL(dcb1, onCanceled(_, _));
EXPECT_CALL(dcb2, onCanceled(_, _));
transport->close(folly::none);
}
TEST_F(QuicTransportImplTest, RegisterDeliveryCallbackLowerThanExpectedClose) {
auto stream = transport->createBidirectionalStream().value();
NiceMock<MockDeliveryCallback> dcb;
auto streamState = transport->transportConn->streamManager->getStream(stream);
streamState->currentWriteOffset = 7;
EXPECT_CALL(dcb, onCanceled(_, _));
transport->registerDeliveryCallback(stream, 2, &dcb);
transport->close(folly::none);
evb->loopOnce();
}
TEST_F(QuicTransportImplTest, TestNotifyPendingConnWriteOnCloseWithoutError) {
NiceMock<MockWriteCallback> wcb;
EXPECT_CALL(
wcb,
onConnectionWriteError(IsError(GenericApplicationErrorCode::NO_ERROR)));
transport->notifyPendingWriteOnConnection(&wcb);
transport->close(folly::none);
evb->loopOnce();
}
TEST_P(QuicTransportImplTestClose, TestNotifyPendingConnWriteOnCloseWithError) {
NiceMock<MockWriteCallback> wcb;
transport->notifyPendingWriteOnConnection(&wcb);
if (GetParam()) {
EXPECT_CALL(
wcb,
onConnectionWriteError(
IsAppError(GenericApplicationErrorCode::UNKNOWN)));
transport->close(std::make_pair(
QuicErrorCode(GenericApplicationErrorCode::UNKNOWN),
std::string("Bye")));
} else {
transport->close(folly::none);
}
evb->loopOnce();
}
TEST_F(QuicTransportImplTest, TestNotifyPendingWriteWithActiveCallback) {
auto stream = transport->createBidirectionalStream().value();
NiceMock<MockWriteCallback> wcb;
EXPECT_CALL(wcb, onStreamWriteReady(stream, _));
auto ok1 = transport->notifyPendingWriteOnStream(stream, &wcb);
EXPECT_TRUE(ok1.hasValue());
auto ok2 = transport->notifyPendingWriteOnStream(stream, &wcb);
EXPECT_EQ(ok2.error(), quic::LocalErrorCode::CALLBACK_ALREADY_INSTALLED);
evb->loopOnce();
}
TEST_F(QuicTransportImplTest, TestNotifyPendingWriteOnCloseWithoutError) {
auto stream = transport->createBidirectionalStream().value();
NiceMock<MockWriteCallback> wcb;
EXPECT_CALL(
wcb,
onStreamWriteError(
stream, IsError(GenericApplicationErrorCode::NO_ERROR)));
transport->notifyPendingWriteOnStream(stream, &wcb);
transport->close(folly::none);
evb->loopOnce();
}
TEST_P(QuicTransportImplTestClose, TestNotifyPendingWriteOnCloseWithError) {
auto stream = transport->createBidirectionalStream().value();
NiceMock<MockWriteCallback> wcb;
transport->notifyPendingWriteOnStream(stream, &wcb);
if (GetParam()) {
EXPECT_CALL(
wcb,
onStreamWriteError(
stream, IsAppError(GenericApplicationErrorCode::UNKNOWN)));
transport->close(std::make_pair(
QuicErrorCode(GenericApplicationErrorCode::UNKNOWN),
std::string("Bye")));
} else {
transport->close(folly::none);
}
evb->loopOnce();
}
TEST_F(QuicTransportImplTest, TestTransportCloseWithMaxPacketNumber) {
transport->setServerConnectionId();
transport->transportConn->pendingEvents.closeTransport = false;
EXPECT_NO_THROW(transport->invokeWriteSocketData());
transport->transportConn->pendingEvents.closeTransport = true;
EXPECT_THROW(transport->invokeWriteSocketData(), QuicTransportException);
}
TEST_F(QuicTransportImplTest, TestGracefulCloseWithActiveStream) {
EXPECT_CALL(connCallback, onConnectionEnd()).Times(0);
EXPECT_CALL(connCallback, onConnectionError(_)).Times(0);
auto stream = transport->createBidirectionalStream().value();
NiceMock<MockWriteCallback> wcb;
NiceMock<MockWriteCallback> wcbConn;
NiceMock<MockReadCallback> rcb;
NiceMock<MockDeliveryCallback> deliveryCb;
EXPECT_CALL(
wcb, onStreamWriteError(stream, IsError(LocalErrorCode::NO_ERROR)));
EXPECT_CALL(
wcbConn, onConnectionWriteError(IsError(LocalErrorCode::NO_ERROR)));
EXPECT_CALL(rcb, readError(stream, IsError(LocalErrorCode::NO_ERROR)));
EXPECT_CALL(deliveryCb, onCanceled(stream, _));
transport->notifyPendingWriteOnConnection(&wcbConn);
transport->notifyPendingWriteOnStream(stream, &wcb);
transport->setReadCallback(stream, &rcb);
EXPECT_CALL(*socketPtr, write(_, _))
.WillRepeatedly(SetErrnoAndReturn(EAGAIN, -1));
transport->writeChain(
stream, IOBuf::copyBuffer("hello"), true, false, &deliveryCb);
transport->closeGracefully();
ASSERT_FALSE(transport->transportClosed);
EXPECT_FALSE(transport->createBidirectionalStream());
EXPECT_TRUE(transport->setReadCallback(stream, &rcb).hasError());
EXPECT_TRUE(transport->notifyPendingWriteOnStream(stream, &wcb).hasError());
EXPECT_TRUE(transport->notifyPendingWriteOnConnection(&wcbConn).hasError());
EXPECT_TRUE(
transport->registerDeliveryCallback(stream, 2, &deliveryCb).hasError());
EXPECT_TRUE(
transport->resetStream(stream, GenericApplicationErrorCode::UNKNOWN)
.hasError());
transport->addDataToStream(
stream, StreamBuffer(IOBuf::copyBuffer("hello"), 0, false));
EXPECT_FALSE(transport->transportConn->streamManager->getStream(stream)
->readBuffer.empty());
// Close the last stream.
// TODO: replace this when we call conn callbacks.
// EXPECT_CALL(connCallback, onConnectionEnd());
transport->closeStream(stream);
ASSERT_TRUE(transport->transportClosed);
evb->loopOnce();
}
TEST_F(QuicTransportImplTest, TestGracefulCloseWithNoActiveStream) {
auto stream = transport->createBidirectionalStream().value();
NiceMock<MockWriteCallback> wcb;
NiceMock<MockWriteCallback> wcbConn;
NiceMock<MockReadCallback> rcb;
NiceMock<MockDeliveryCallback> deliveryCb;
EXPECT_CALL(
rcb, readError(stream, IsError(GenericApplicationErrorCode::NO_ERROR)));
EXPECT_CALL(deliveryCb, onDeliveryAck(stream, _, _));
EXPECT_CALL(connCallback, onConnectionEnd()).Times(0);
EXPECT_CALL(connCallback, onConnectionError(_)).Times(0);
transport->setReadCallback(stream, &rcb);
EXPECT_CALL(*socketPtr, write(_, _))
.WillRepeatedly(SetErrnoAndReturn(EAGAIN, -1));
transport->writeChain(
stream, IOBuf::copyBuffer("hello"), true, false, &deliveryCb);
// Close the last stream.
auto streamState = transport->transportConn->streamManager->getStream(stream);
// Fake that the data was delivered to keep all the state consistent.
streamState->currentWriteOffset = 7;
transport->transportConn->streamManager->addDeliverable(stream);
transport->closeStream(stream);
transport->close(folly::none);
ASSERT_TRUE(transport->transportClosed);
EXPECT_FALSE(transport->createBidirectionalStream());
EXPECT_TRUE(transport->setReadCallback(stream, &rcb).hasError());
EXPECT_TRUE(transport->notifyPendingWriteOnStream(stream, &wcb).hasError());
EXPECT_TRUE(transport->notifyPendingWriteOnConnection(&wcbConn).hasError());
EXPECT_TRUE(
transport->registerDeliveryCallback(stream, 2, &deliveryCb).hasError());
EXPECT_TRUE(
transport->resetStream(stream, GenericApplicationErrorCode::UNKNOWN)
.hasError());
}
TEST_F(QuicTransportImplTest, TestImmediateClose) {
auto stream = transport->createBidirectionalStream().value();
NiceMock<MockWriteCallback> wcb;
NiceMock<MockWriteCallback> wcbConn;
NiceMock<MockReadCallback> rcb;
NiceMock<MockDeliveryCallback> deliveryCb;
EXPECT_CALL(
wcb,
onStreamWriteError(
stream, IsAppError(GenericApplicationErrorCode::UNKNOWN)));
EXPECT_CALL(
wcbConn,
onConnectionWriteError(IsAppError(GenericApplicationErrorCode::UNKNOWN)));
EXPECT_CALL(
rcb, readError(stream, IsAppError(GenericApplicationErrorCode::UNKNOWN)));
EXPECT_CALL(deliveryCb, onCanceled(stream, _));
EXPECT_CALL(connCallback, onConnectionError(_)).Times(0);
transport->notifyPendingWriteOnConnection(&wcbConn);
transport->notifyPendingWriteOnStream(stream, &wcb);
transport->setReadCallback(stream, &rcb);
EXPECT_CALL(*socketPtr, write(_, _))
.WillRepeatedly(SetErrnoAndReturn(EAGAIN, -1));
transport->writeChain(
stream, IOBuf::copyBuffer("hello"), true, false, &deliveryCb);
transport->close(std::make_pair(
QuicErrorCode(GenericApplicationErrorCode::UNKNOWN),
std::string("Error")));
ASSERT_TRUE(transport->transportClosed);
EXPECT_FALSE(transport->createBidirectionalStream());
EXPECT_TRUE(transport->setReadCallback(stream, &rcb).hasError());
EXPECT_TRUE(transport->notifyPendingWriteOnStream(stream, &wcb).hasError());
EXPECT_TRUE(transport->notifyPendingWriteOnConnection(&wcbConn).hasError());
EXPECT_TRUE(
transport->registerDeliveryCallback(stream, 2, &deliveryCb).hasError());
EXPECT_TRUE(
transport->resetStream(stream, GenericApplicationErrorCode::UNKNOWN)
.hasError());
transport->addDataToStream(
stream, StreamBuffer(IOBuf::copyBuffer("hello"), 0, false));
EXPECT_EQ(
transport->transportConn->streamManager->getStream(stream), nullptr);
evb->loopOnce();
}
TEST_F(QuicTransportImplTest, ResetStreamUnsetWriteCallback) {
auto stream = transport->createBidirectionalStream().value();
NiceMock<MockWriteCallback> wcb;
EXPECT_CALL(wcb, onStreamWriteError(stream, _)).Times(0);
transport->notifyPendingWriteOnStream(stream, &wcb);
EXPECT_FALSE(
transport->resetStream(stream, GenericApplicationErrorCode::UNKNOWN)
.hasError());
evb->loopOnce();
}
TEST_F(QuicTransportImplTest, DestroyWithoutClosing) {
EXPECT_CALL(connCallback, onConnectionError(_)).Times(0);
EXPECT_CALL(connCallback, onConnectionEnd()).Times(0);
transport.reset();
}
TEST_F(QuicTransportImplTest, UncleanShutdownEventBase) {
// if abruptly shutting down the eventbase we should avoid scheduling
// any new timer.
transport->setIdleTimeout();
evb.reset();
}
TEST_F(QuicTransportImplTest, GetLocalAddressBoundSocket) {
SocketAddress addr("127.0.0.1", 443);
EXPECT_CALL(*socketPtr, isBound()).WillOnce(Return(true));
EXPECT_CALL(*socketPtr, address()).WillRepeatedly(ReturnRef(addr));
SocketAddress localAddr = transport->getLocalAddress();
EXPECT_TRUE(localAddr == addr);
}
TEST_F(QuicTransportImplTest, GetLocalAddressUnboundSocket) {
EXPECT_CALL(*socketPtr, isBound()).WillOnce(Return(false));
SocketAddress localAddr = transport->getLocalAddress();
EXPECT_FALSE(localAddr.isInitialized());
}
TEST_F(QuicTransportImplTest, GetLocalAddressBadSocket) {
auto badTransport =
std::make_shared<TestQuicTransport>(evb.get(), nullptr, connCallback);
badTransport->closeWithoutWrite();
SocketAddress localAddr = badTransport->getLocalAddress();
EXPECT_FALSE(localAddr.isInitialized());
}
TEST_F(QuicTransportImplTest, AsyncStreamFlowControlWrite) {
transport->transportConn->oneRttWriteCipher = test::createNoOpAead();
auto stream = transport->createBidirectionalStream().value();
auto streamState = transport->transportConn->streamManager->getStream(stream);
transport->setServerConnectionId();
EXPECT_FALSE(streamState->latestMaxStreamDataPacket.has_value());
transport->writeLooper()->stop();
streamState->flowControlState.advertisedMaxOffset = 0; // Easier to calculate
transport->setStreamFlowControlWindow(stream, 4000);
EXPECT_EQ(0, streamState->flowControlState.advertisedMaxOffset);
EXPECT_FALSE(streamState->latestMaxStreamDataPacket.has_value());
// Loop it:
EXPECT_TRUE(transport->writeLooper()->isRunning());
transport->writeLooper()->runLoopCallback();
EXPECT_EQ(4000, streamState->flowControlState.advertisedMaxOffset);
EXPECT_TRUE(streamState->latestMaxStreamDataPacket.has_value());
}
TEST_F(QuicTransportImplTest, ExceptionInWriteLooperDoesNotCrash) {
auto stream = transport->createBidirectionalStream().value();
transport->setReadCallback(stream, nullptr);
transport->writeChain(
stream, IOBuf::copyBuffer("hello"), true, false, nullptr);
transport->addDataToStream(
stream, StreamBuffer(IOBuf::copyBuffer("hello"), 0, false));
EXPECT_CALL(*socketPtr, write(_, _)).WillOnce(SetErrnoAndReturn(EBADF, -1));
EXPECT_CALL(connCallback, onConnectionError(_)).WillOnce(Invoke([&](auto) {
transport.reset();
}));
transport->writeLooper()->runLoopCallback();
}
class QuicTransportImplTestUniBidi : public QuicTransportImplTest,
public testing::WithParamInterface<bool> {
};
quic::StreamId createStream(
std::shared_ptr<TestQuicTransport> transport,
bool unidirectional) {
if (unidirectional) {
return transport->createUnidirectionalStream().value();
} else {
return transport->createBidirectionalStream().value();
}
}
INSTANTIATE_TEST_CASE_P(
QuicTransportImplTest,
QuicTransportImplTestUniBidi,
Values(true, false));
TEST_P(QuicTransportImplTestUniBidi, AppIdleTest) {
auto& conn = transport->getConnectionState();
auto mockCongestionController =
std::make_unique<NiceMock<MockCongestionController>>();
auto rawCongestionController = mockCongestionController.get();
conn.congestionController = std::move(mockCongestionController);
EXPECT_CALL(*rawCongestionController, setAppIdle(false, _)).Times(0);
auto stream = createStream(transport, GetParam());
EXPECT_CALL(*rawCongestionController, setAppIdle(true, _));
transport->closeStream(stream);
}
TEST_P(QuicTransportImplTestUniBidi, AppIdleTestControlStreams) {
auto& conn = transport->getConnectionState();
auto mockCongestionController =
std::make_unique<NiceMock<MockCongestionController>>();
auto rawCongestionController = mockCongestionController.get();
conn.congestionController = std::move(mockCongestionController);
EXPECT_CALL(*rawCongestionController, setAppIdle(false, _)).Times(0);
auto stream = createStream(transport, GetParam());
ASSERT_TRUE(stream);
auto ctrlStream1 = createStream(transport, GetParam());
ASSERT_TRUE(ctrlStream1);
transport->setControlStream(ctrlStream1);
auto ctrlStream2 = createStream(transport, GetParam());
ASSERT_TRUE(ctrlStream2);
transport->setControlStream(ctrlStream2);
EXPECT_CALL(*rawCongestionController, setAppIdle(true, _));
transport->closeStream(stream);
}
TEST_P(QuicTransportImplTestUniBidi, AppIdleTestOnlyControlStreams) {
auto& conn = transport->getConnectionState();
auto mockCongestionController =
std::make_unique<NiceMock<MockCongestionController>>();
auto rawCongestionController = mockCongestionController.get();
conn.congestionController = std::move(mockCongestionController);
auto ctrlStream1 = createStream(transport, GetParam());
EXPECT_CALL(*rawCongestionController, setAppIdle(true, _)).Times(1);
transport->setControlStream(ctrlStream1);
EXPECT_CALL(*rawCongestionController, setAppIdle(false, _)).Times(1);
auto ctrlStream2 = createStream(transport, GetParam());
EXPECT_CALL(*rawCongestionController, setAppIdle(true, _)).Times(1);
transport->setControlStream(ctrlStream2);
EXPECT_CALL(*rawCongestionController, setAppIdle(_, _)).Times(0);
transport->closeStream(ctrlStream1);
transport->closeStream(ctrlStream2);
}
TEST_F(QuicTransportImplTest, UnidirectionalInvalidReadFuncs) {
auto stream = transport->createUnidirectionalStream().value();
EXPECT_THROW(
transport->read(stream, 100).thenOrThrow([&](auto) {}),
folly::Unexpected<LocalErrorCode>::BadExpectedAccess);
EXPECT_THROW(
transport->setReadCallback(stream, nullptr).thenOrThrow([&](auto) {}),
folly::Unexpected<LocalErrorCode>::BadExpectedAccess);
EXPECT_THROW(
transport->pauseRead(stream).thenOrThrow([&](auto) {}),
folly::Unexpected<LocalErrorCode>::BadExpectedAccess);
EXPECT_THROW(
transport->resumeRead(stream).thenOrThrow([&](auto) {}),
folly::Unexpected<LocalErrorCode>::BadExpectedAccess);
EXPECT_THROW(
transport->stopSending(stream, GenericApplicationErrorCode::UNKNOWN)
.thenOrThrow([&](auto) {}),
folly::Unexpected<LocalErrorCode>::BadExpectedAccess);
}
TEST_F(QuicTransportImplTest, UnidirectionalInvalidWriteFuncs) {
auto readData = folly::IOBuf::copyBuffer("actual stream data");
StreamId stream = 0x6;
transport->addDataToStream(stream, StreamBuffer(readData->clone(), 0, true));
EXPECT_THROW(
transport->getStreamWriteOffset(stream).thenOrThrow([&](auto) {}),
folly::Unexpected<LocalErrorCode>::BadExpectedAccess);
EXPECT_THROW(
transport->getStreamWriteBufferedBytes(stream).thenOrThrow([&](auto) {}),
folly::Unexpected<LocalErrorCode>::BadExpectedAccess);
EXPECT_THROW(
transport->notifyPendingWriteOnStream(stream, nullptr)
.thenOrThrow([&](auto) {}),
folly::Unexpected<LocalErrorCode>::BadExpectedAccess);
EXPECT_THROW(
transport
->writeChain(stream, folly::IOBuf::copyBuffer("Hey"), false, false)
.thenOrThrow([&](auto) {}),
folly::Unexpected<LocalErrorCode>::BadExpectedAccess);
EXPECT_THROW(
transport->registerDeliveryCallback(stream, 0, nullptr)
.thenOrThrow([&](auto) {}),
folly::Unexpected<LocalErrorCode>::BadExpectedAccess);
EXPECT_THROW(
transport->resetStream(stream, GenericApplicationErrorCode::UNKNOWN)
.thenOrThrow([&](auto) {}),
folly::Unexpected<LocalErrorCode>::BadExpectedAccess);
}
TEST_P(QuicTransportImplTestUniBidi, IsServerStream) {
auto stream = createStream(transport, GetParam());
EXPECT_TRUE(transport->isServerStream(stream));
}
TEST_P(QuicTransportImplTestUniBidi, IsClientStream) {
auto stream = createStream(transport, GetParam());
EXPECT_FALSE(transport->isClientStream(stream));
}
TEST_F(QuicTransportImplTest, IsUnidirectionalStream) {
auto stream = transport->createUnidirectionalStream().value();
EXPECT_TRUE(transport->isUnidirectionalStream(stream));
}
TEST_F(QuicTransportImplTest, IsBidirectionalStream) {
auto stream = transport->createBidirectionalStream().value();
EXPECT_TRUE(transport->isBidirectionalStream(stream));
}
TEST_F(QuicTransportImplTest, PeekCallbackDataAvailable) {
auto stream1 = transport->createBidirectionalStream().value();
auto stream2 = transport->createBidirectionalStream().value();
NiceMock<MockPeekCallback> peekCb1;
NiceMock<MockPeekCallback> peekCb2;
transport->setPeekCallback(stream1, &peekCb1);
transport->setPeekCallback(stream2, &peekCb2);
transport->addDataToStream(
stream1, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
transport->addDataToStream(
stream2,
StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 10));
EXPECT_CALL(peekCb1, onDataAvailable(stream1, _));
transport->driveReadCallbacks();
transport->addDataToStream(
stream2, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
EXPECT_CALL(peekCb2, onDataAvailable(stream2, _));
transport->driveReadCallbacks();
transport->addDataToStream(
stream1, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
transport->addDataToStream(
stream2, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
EXPECT_CALL(peekCb1, onDataAvailable(stream1, _));
EXPECT_CALL(peekCb2, onDataAvailable(stream2, _));
transport->driveReadCallbacks();
transport->setPeekCallback(stream1, nullptr);
transport->setPeekCallback(stream2, nullptr);
transport->driveReadCallbacks();
transport.reset();
}
TEST_F(QuicTransportImplTest, PeekCallbackUnsetAll) {
auto stream1 = transport->createBidirectionalStream().value();
auto stream2 = transport->createBidirectionalStream().value();
NiceMock<MockPeekCallback> peekCb1;
NiceMock<MockPeekCallback> peekCb2;
// Set the peek callbacks and add data to the streams, and see that the
// callbacks do indeed fire
transport->setPeekCallback(stream1, &peekCb1);
transport->setPeekCallback(stream2, &peekCb2);
transport->addDataToStream(
stream1, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
transport->addDataToStream(
stream2, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
EXPECT_CALL(peekCb1, onDataAvailable(stream1, _));
EXPECT_CALL(peekCb2, onDataAvailable(stream2, _));
transport->driveReadCallbacks();
// unset all of the peek callbacks and see that the callbacks don't fire
// after data is added to the streams
transport->unsetAllPeekCallbacks();
transport->addDataToStream(
stream1, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
transport->addDataToStream(
stream2, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
EXPECT_CALL(peekCb1, onDataAvailable(stream1, _)).Times(0);
EXPECT_CALL(peekCb2, onDataAvailable(stream2, _)).Times(0);
transport->driveReadCallbacks();
}
TEST_F(QuicTransportImplTest, PeekCallbackChangePeekCallback) {
InSequence enforceOrder;
auto stream1 = transport->createBidirectionalStream().value();
NiceMock<MockPeekCallback> peekCb1;
NiceMock<MockPeekCallback> peekCb2;
transport->setPeekCallback(stream1, &peekCb1);
transport->addDataToStream(
stream1, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
EXPECT_CALL(peekCb1, onDataAvailable(stream1, _));
transport->driveReadCallbacks();
transport->setPeekCallback(stream1, &peekCb2);
transport->addDataToStream(
stream1, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
EXPECT_CALL(peekCb2, onDataAvailable(stream1, _));
transport->driveReadCallbacks();
transport.reset();
}
TEST_F(QuicTransportImplTest, PeekCallbackPauseResume) {
InSequence enforceOrder;
auto stream1 = transport->createBidirectionalStream().value();
NiceMock<MockPeekCallback> peekCb1;
transport->setPeekCallback(stream1, &peekCb1);
transport->addDataToStream(
stream1, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
auto res = transport->pausePeek(stream1);
EXPECT_TRUE(res);
EXPECT_CALL(peekCb1, onDataAvailable(stream1, _)).Times(0);
transport->driveReadCallbacks();
res = transport->resumePeek(stream1);
EXPECT_TRUE(res);
EXPECT_CALL(peekCb1, onDataAvailable(stream1, _));
transport->driveReadCallbacks();
auto stream2 = transport->createBidirectionalStream().value();
res = transport->pausePeek(stream2);
EXPECT_FALSE(res);
EXPECT_EQ(LocalErrorCode::APP_ERROR, res.error());
transport.reset();
}
TEST_F(QuicTransportImplTest, PeekCallbackNoCallbackSet) {
auto stream1 = transport->createBidirectionalStream().value();
transport->addDataToStream(
stream1,
StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 10));
transport->driveReadCallbacks();
transport->addDataToStream(
stream1, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
transport->driveReadCallbacks();
transport.reset();
}
TEST_F(QuicTransportImplTest, PeekCallbackInvalidStream) {
NiceMock<MockPeekCallback> peekCb1;
StreamId invalidStream = 10;
EXPECT_TRUE(transport->setPeekCallback(invalidStream, &peekCb1).hasError());
transport.reset();
}
TEST_F(QuicTransportImplTest, PeekData) {
InSequence enforceOrder;
auto stream1 = transport->createBidirectionalStream().value();
NiceMock<MockPeekCallback> peekCb1;
auto peekData = folly::IOBuf::copyBuffer("actual stream data");
transport->setPeekCallback(stream1, &peekCb1);
EXPECT_CALL(peekCb1, onDataAvailable(stream1, _));
transport->addDataToStream(stream1, StreamBuffer(peekData->clone(), 0));
transport->driveReadCallbacks();
bool cbCalled = false;
auto peekCallback = [&](StreamId id,
const folly::Range<PeekIterator>& range) {
cbCalled = true;
EXPECT_EQ(id, stream1);
EXPECT_EQ(range.size(), 1);
auto bufClone = range[0].data.front()->clone();
EXPECT_EQ("actual stream data", bufClone->moveToFbString().toStdString());
};
transport->peek(stream1, peekCallback);
EXPECT_TRUE(cbCalled);
transport.reset();
}
TEST_F(QuicTransportImplTest, PeekDataWithError) {
InSequence enforceOrder;
auto streamId = transport->createBidirectionalStream().value();
auto peekData = folly::IOBuf::copyBuffer("actual stream data");
transport->addDataToStream(streamId, StreamBuffer(peekData->clone(), 0));
bool cbCalled = false;
auto peekCallback = [&](StreamId, const folly::Range<PeekIterator>&) {
cbCalled = true;
};
// Same local error code should be returned.
transport->addStreamReadError(streamId, LocalErrorCode::NO_ERROR);
auto result = transport->peek(streamId, peekCallback);
EXPECT_FALSE(cbCalled);
EXPECT_TRUE(result.hasError());
EXPECT_EQ(LocalErrorCode::NO_ERROR, result.error());
// LocalErrorCode::INTERNAL_ERROR should be returned.
transport->addStreamReadError(
streamId, TransportErrorCode::FLOW_CONTROL_ERROR);
result = transport->peek(streamId, peekCallback);
EXPECT_FALSE(cbCalled);
EXPECT_TRUE(result.hasError());
EXPECT_EQ(LocalErrorCode::INTERNAL_ERROR, result.error());
transport.reset();
}
TEST_F(QuicTransportImplTest, ConsumeDataWithError) {
InSequence enforceOrder;
auto streamId = transport->createBidirectionalStream().value();
auto peekData = folly::IOBuf::copyBuffer("actual stream data");
transport->addDataToStream(streamId, StreamBuffer(peekData->clone(), 0));
// Same local error code should be returned.
transport->addStreamReadError(streamId, LocalErrorCode::NO_ERROR);
auto result = transport->consume(streamId, 1);
EXPECT_TRUE(result.hasError());
EXPECT_EQ(LocalErrorCode::NO_ERROR, result.error());
// LocalErrorCode::INTERNAL_ERROR should be returned.
transport->addStreamReadError(
streamId, TransportErrorCode::FLOW_CONTROL_ERROR);
result = transport->consume(streamId, 1);
EXPECT_TRUE(result.hasError());
EXPECT_EQ(LocalErrorCode::INTERNAL_ERROR, result.error());
transport.reset();
}
TEST_F(QuicTransportImplTest, PeekConsumeReadTest) {
InSequence enforceOrder;
auto stream1 = transport->createBidirectionalStream().value();
auto readData = folly::IOBuf::copyBuffer("actual stream data");
NiceMock<MockPeekCallback> peekCb;
NiceMock<MockReadCallback> readCb;
transport->setPeekCallback(stream1, &peekCb);
transport->setReadCallback(stream1, &readCb);
transport->addDataToStream(
stream1, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
// Both peek and read should be called.
EXPECT_CALL(readCb, readAvailable(stream1));
EXPECT_CALL(peekCb, onDataAvailable(stream1, _));
transport->driveReadCallbacks();
// Only read should be called
EXPECT_CALL(readCb, readAvailable(stream1));
transport->driveReadCallbacks();
// Consume 5 bytes.
transport->consume(stream1, 5);
// Both peek and read should be called.
// Read - because it is called every time
// Peek - because the peekable range has changed
EXPECT_CALL(readCb, readAvailable(stream1));
EXPECT_CALL(peekCb, onDataAvailable(stream1, _));
transport->driveReadCallbacks();
// Read 10 bytes.
transport->read(stream1, 10).thenOrThrow([&](std::pair<Buf, bool> data) {
EXPECT_EQ("l stream d", data.first->moveToFbString().toStdString());
});
// Both peek and read should be called.
// Read - because it is called every time
// Peek - because the peekable range has changed
EXPECT_CALL(readCb, readAvailable(stream1));
EXPECT_CALL(peekCb, onDataAvailable(stream1, _));
transport->driveReadCallbacks();
// Only read should be called.
EXPECT_CALL(readCb, readAvailable(stream1));
transport->driveReadCallbacks();
// Consume the rest of the data.
// Only 3 bytes left, try consuming 42.
transport->consume(stream1, 42);
// Neither read nor peek should be called.
EXPECT_CALL(readCb, readAvailable(stream1)).Times(0);
EXPECT_CALL(peekCb, onDataAvailable(stream1, _)).Times(0);
transport->driveReadCallbacks();
// Add more data, this time with a gap.
auto buf1 = IOBuf::copyBuffer("I just met you and this is crazy.");
auto buf2 = IOBuf::copyBuffer(" Here is my number, so call");
auto buf3 = IOBuf::copyBuffer(" me maybe.");
transport->addDataToStream(stream1, StreamBuffer(buf1->clone(), 0));
transport->addDataToStream(
stream1,
StreamBuffer(
buf3->clone(),
buf1->computeChainDataLength() + buf2->computeChainDataLength()));
// Both peek and read should be called.
EXPECT_CALL(readCb, readAvailable(stream1));
EXPECT_CALL(peekCb, onDataAvailable(stream1, _));
transport->driveReadCallbacks();
// Consume left part.
transport->consume(stream1, buf1->computeChainDataLength());
// Only peek should be called.
EXPECT_CALL(peekCb, onDataAvailable(stream1, _));
transport->driveReadCallbacks();
// Fill in the gap.
transport->addDataToStream(
stream1, StreamBuffer(buf2->clone(), buf1->computeChainDataLength()));
// Both peek and read should be called.
EXPECT_CALL(readCb, readAvailable(stream1));
EXPECT_CALL(peekCb, onDataAvailable(stream1, _));
transport->driveReadCallbacks();
// Read the rest of the buffer.
transport->read(stream1, 0).thenOrThrow([&](std::pair<Buf, bool> data) {
EXPECT_EQ(
" Here is my number, so call me maybe.",
data.first->moveToFbString().toStdString());
});
// Neither read nor peek should be called.
EXPECT_CALL(readCb, readAvailable(stream1)).Times(0);
EXPECT_CALL(peekCb, onDataAvailable(stream1, _)).Times(0);
transport->driveReadCallbacks();
transport.reset();
}
TEST_F(QuicTransportImplTest, UpdatePeekableListNoDataTest) {
auto streamId = transport->createBidirectionalStream().value();
const auto& conn = transport->transportConn;
auto stream = transport->getStream(streamId);
// Insert streamId into the list.
conn->streamManager->peekableStreams().insert(streamId);
// After the call the streamId should be removed
// from the list since there is no peekable data in the stream.
conn->streamManager->updatePeekableStreams(*stream);
EXPECT_EQ(0, conn->streamManager->peekableStreams().count(streamId));
}
TEST_F(QuicTransportImplTest, UpdatePeekableListWithDataTest) {
auto streamId = transport->createBidirectionalStream().value();
const auto& conn = transport->transportConn;
auto stream = transport->getStream(streamId);
// Add some data to the stream.
transport->addDataToStream(
streamId,
StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
// streamId is in the list after the above call.
EXPECT_EQ(1, conn->streamManager->peekableStreams().count(streamId));
// After the call the streamId shall remain
// in the list since there is data in the stream.
conn->streamManager->updatePeekableStreams(*stream);
EXPECT_EQ(1, conn->streamManager->peekableStreams().count(streamId));
}
TEST_F(QuicTransportImplTest, UpdatePeekableListEmptyListTest) {
auto streamId = transport->createBidirectionalStream().value();
const auto& conn = transport->transportConn;
auto stream = transport->getStream(streamId);
// Add some data to the stream.
transport->addDataToStream(
streamId,
StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
// Erase streamId from the list.
conn->streamManager->peekableStreams().erase(streamId);
EXPECT_EQ(0, conn->streamManager->peekableStreams().count(streamId));
// After the call the streamId should be added to the list
// because there is data in the stream and the streamId is
// not in the list.
conn->streamManager->updatePeekableStreams(*stream);
EXPECT_EQ(1, conn->streamManager->peekableStreams().count(streamId));
}
TEST_F(QuicTransportImplTest, UpdatePeekableListWithStreamErrorTest) {
auto streamId = transport->createBidirectionalStream().value();
const auto& conn = transport->transportConn;
// Add some data to the stream.
transport->addDataToStream(
streamId,
StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
// streamId is in the list.
EXPECT_EQ(1, conn->streamManager->peekableStreams().count(streamId));
transport->addStreamReadError(streamId, LocalErrorCode::NO_ERROR);
// streamId is removed from the list after the call
// because there is an error on the stream.
EXPECT_EQ(0, conn->streamManager->peekableStreams().count(streamId));
}
TEST_F(QuicTransportImplTest, DataExpiredCallbackDataAvailable) {
transport->transportConn->partialReliabilityEnabled = true;
auto stream1 = transport->createBidirectionalStream().value();
auto stream2 = transport->createBidirectionalStream().value();
StreamId stream3 = 0x6;
NiceMock<MockDataExpiredCallback> dataExpiredCb1;
NiceMock<MockDataExpiredCallback> dataExpiredCb2;
NiceMock<MockDataExpiredCallback> dataExpiredCb3;
transport->setDataExpiredCallback(stream1, &dataExpiredCb1);
transport->setDataExpiredCallback(stream2, &dataExpiredCb2);
EXPECT_CALL(dataExpiredCb1, onDataExpired(stream1, 5));
transport->addExpiredStreamDataFrameToStream(
ExpiredStreamDataFrame(stream1, 5));
EXPECT_CALL(dataExpiredCb2, onDataExpired(stream2, 13));
transport->addExpiredStreamDataFrameToStream(
ExpiredStreamDataFrame(stream2, 13));
EXPECT_CALL(dataExpiredCb3, onDataExpired(_, _)).Times(0);
transport->addExpiredStreamDataFrameToStream(
ExpiredStreamDataFrame(stream3, 42));
transport.reset();
}
TEST_F(QuicTransportImplTest, DataExpiredCallbackDataAvailableWithDataRead) {
transport->transportConn->partialReliabilityEnabled = true;
auto stream1 = transport->createBidirectionalStream().value();
NiceMock<MockDataExpiredCallback> dataExpiredCb1;
NiceMock<MockReadCallback> readCb1;
transport->setDataExpiredCallback(stream1, &dataExpiredCb1);
transport->setReadCallback(stream1, &readCb1);
transport->addDataToStream(
stream1, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
EXPECT_CALL(readCb1, readAvailable(stream1));
transport->driveReadCallbacks();
transport->read(stream1, 3);
// readOffset must be at 3, abandoned bytes length must be 2.
EXPECT_CALL(dataExpiredCb1, onDataExpired(stream1, 5));
transport->addExpiredStreamDataFrameToStream(
ExpiredStreamDataFrame(stream1, 5));
transport.reset();
}
class TestDataExpiredCallback : public QuicSocket::DataExpiredCallback {
public:
~TestDataExpiredCallback() override = default;
TestDataExpiredCallback(TestQuicTransport& transport, StreamId streamId)
: transport_(transport), streamId_(streamId) {}
void onDataExpired(StreamId, uint64_t) noexcept override {
auto peekCallback = [&](StreamId /* id */,
const folly::Range<PeekIterator>& /* range */) {
cbCalled_ = true;
};
transport_.peek(streamId_, std::move(peekCallback));
}
bool wasCbCalled() const {
return cbCalled_;
}
private:
TestQuicTransport& transport_;
StreamId streamId_;
bool cbCalled_{false};
};
TEST_F(
QuicTransportImplTest,
DataExpiredCallbackDataAvailableWithDataReadAndPeek) {
transport->transportConn->partialReliabilityEnabled = true;
auto stream1 = transport->createBidirectionalStream().value();
TestDataExpiredCallback peekExecCb =
TestDataExpiredCallback(*transport, stream1);
NiceMock<MockReadCallback> readCb1;
transport->setDataExpiredCallback(stream1, &peekExecCb);
transport->setReadCallback(stream1, &readCb1);
transport->addDataToStream(
stream1, StreamBuffer(folly::IOBuf::copyBuffer("actual stream data"), 0));
EXPECT_CALL(readCb1, readAvailable(stream1));
transport->driveReadCallbacks();
transport->read(stream1, 3);
EXPECT_FALSE(peekExecCb.wasCbCalled());
transport->addExpiredStreamDataFrameToStream(
ExpiredStreamDataFrame(stream1, 5));
EXPECT_TRUE(peekExecCb.wasCbCalled());
transport.reset();
}
TEST_F(QuicTransportImplTest, DataExpiredCallbackChangeCallback) {
transport->transportConn->partialReliabilityEnabled = true;
auto stream1 = transport->createBidirectionalStream().value();
NiceMock<MockDataExpiredCallback> dataExpiredCb1;
NiceMock<MockDataExpiredCallback> dataExpiredCb2;
transport->setDataExpiredCallback(stream1, &dataExpiredCb1);
EXPECT_CALL(dataExpiredCb1, onDataExpired(stream1, 5));
transport->addExpiredStreamDataFrameToStream(
ExpiredStreamDataFrame(stream1, 5));
transport->setDataExpiredCallback(stream1, &dataExpiredCb2);
EXPECT_CALL(dataExpiredCb2, onDataExpired(stream1, 6));
transport->addExpiredStreamDataFrameToStream(
ExpiredStreamDataFrame(stream1, 6));
transport.reset();
}
TEST_F(QuicTransportImplTest, DataExpiredCallbackNoCallbackSet) {
transport->transportConn->partialReliabilityEnabled = true;
auto stream1 = transport->createBidirectionalStream().value();
transport->addExpiredStreamDataFrameToStream(
ExpiredStreamDataFrame(stream1, 5));
transport->addExpiredStreamDataFrameToStream(
ExpiredStreamDataFrame(stream1, 6));
transport.reset();
}
TEST_F(QuicTransportImplTest, DataExpiredCallbackInvalidStream) {
transport->transportConn->partialReliabilityEnabled = true;
NiceMock<MockDataExpiredCallback> dataExpiredCb1;
StreamId invalidStream = 10;
EXPECT_TRUE(transport->setDataExpiredCallback(invalidStream, &dataExpiredCb1)
.hasError());
transport.reset();
}
TEST_F(QuicTransportImplTest, SendDataExpired) {
transport->transportConn->partialReliabilityEnabled = true;
auto stream1 = transport->createBidirectionalStream().value();
auto streamState =
transport->transportConn->streamManager->getStream(stream1);
streamState->minimumRetransmittableOffset = 2;
streamState->flowControlState.peerAdvertisedMaxOffset = 10;
// Expect minimumRetransmittableOffset shift to 5.
auto res = transport->sendDataExpired(stream1, 5);
EXPECT_EQ(res.hasError(), false);
auto newOffsetOpt = res.value();
EXPECT_EQ(newOffsetOpt.has_value(), true);
EXPECT_EQ(newOffsetOpt.value(), 5);
EXPECT_EQ(streamState->minimumRetransmittableOffset, 5);
// Expect minimumRetransmittableOffset stay the same
// because 3 is smaller than current minimumRetransmittableOffset.
res = transport->sendDataExpired(stream1, 3);
EXPECT_EQ(res.hasError(), false);
newOffsetOpt = res.value();
EXPECT_EQ(newOffsetOpt.has_value(), false);
EXPECT_EQ(streamState->minimumRetransmittableOffset, 5);
// Expect minimumRetransmittableOffset be set to 10
// because 11 is larger than flowControlState.peerAdvertisedMaxOffset.
res = transport->sendDataExpired(stream1, 11);
EXPECT_EQ(res.hasError(), false);
newOffsetOpt = res.value();
EXPECT_EQ(newOffsetOpt.has_value(), true);
EXPECT_EQ(newOffsetOpt.value(), 10);
EXPECT_EQ(
streamState->minimumRetransmittableOffset,
streamState->flowControlState.peerAdvertisedMaxOffset);
transport.reset();
}
TEST_F(QuicTransportImplTest, DataRejecteddCallbackDataAvailable) {
transport->transportConn->partialReliabilityEnabled = true;
auto stream1 = transport->createBidirectionalStream().value();
auto stream2 = transport->createBidirectionalStream().value();
StreamId stream3 = 0x6;
NiceMock<MockDataRejectedCallback> dataRejectedCb1;
NiceMock<MockDataRejectedCallback> dataRejectedCb2;
NiceMock<MockDataRejectedCallback> dataRejectedCb3;
transport->setDataRejectedCallback(stream1, &dataRejectedCb1);
transport->setDataRejectedCallback(stream2, &dataRejectedCb2);
EXPECT_CALL(dataRejectedCb1, onDataRejected(stream1, 5));
transport->addMinStreamDataFrameToStream(
MinStreamDataFrame(stream1, kDefaultStreamWindowSize, 5));
EXPECT_CALL(dataRejectedCb2, onDataRejected(stream2, 13));
transport->addMinStreamDataFrameToStream(
MinStreamDataFrame(stream2, kDefaultStreamWindowSize, 13));
EXPECT_CALL(dataRejectedCb3, onDataRejected(_, _)).Times(0);
transport->addMinStreamDataFrameToStream(MinStreamDataFrame(stream3, 42, 39));
transport.reset();
}
TEST_F(QuicTransportImplTest, DataRejecteddCallbackWithDeliveryCallbacks) {
transport->transportConn->partialReliabilityEnabled = true;
auto stream1 = transport->createBidirectionalStream().value();
auto stream2 = transport->createBidirectionalStream().value();
NiceMock<MockDeliveryCallback> dcb1;
NiceMock<MockDeliveryCallback> dcb2;
NiceMock<MockDataRejectedCallback> dataRejectedCb1;
NiceMock<MockDataRejectedCallback> dataRejectedCb2;
transport->registerDeliveryCallback(stream1, 10, &dcb1);
transport->registerDeliveryCallback(stream2, 20, &dcb2);
transport->setDataRejectedCallback(stream1, &dataRejectedCb1);
transport->setDataRejectedCallback(stream2, &dataRejectedCb2);
EXPECT_CALL(dcb1, onCanceled(stream1, 10)).Times(1);
EXPECT_CALL(dcb2, onCanceled(_, _)).Times(0);
EXPECT_CALL(dataRejectedCb1, onDataRejected(stream1, 15));
transport->addMinStreamDataFrameToStream(
MinStreamDataFrame(stream1, kDefaultStreamWindowSize, 15));
Mock::VerifyAndClearExpectations(&dcb1);
Mock::VerifyAndClearExpectations(&dcb2);
Mock::VerifyAndClearExpectations(&dataRejectedCb1);
EXPECT_CALL(dcb1, onCanceled(_, _)).Times(0);
EXPECT_CALL(dcb2, onCanceled(stream2, 20)).Times(1);
EXPECT_CALL(dataRejectedCb2, onDataRejected(stream2, 23));
transport->addMinStreamDataFrameToStream(
MinStreamDataFrame(stream2, kDefaultStreamWindowSize, 23));
Mock::VerifyAndClearExpectations(&dcb1);
Mock::VerifyAndClearExpectations(&dcb2);
Mock::VerifyAndClearExpectations(&dataRejectedCb2);
EXPECT_CALL(dcb1, onCanceled(_, _)).Times(0);
EXPECT_CALL(dcb2, onCanceled(_, _)).Times(0);
transport->close(folly::none);
}
TEST_F(
QuicTransportImplTest,
DataRejecteddCallbackWithDeliveryCallbacksSomeLeft) {
transport->transportConn->partialReliabilityEnabled = true;
auto stream1 = transport->createBidirectionalStream().value();
auto stream2 = transport->createBidirectionalStream().value();
NiceMock<MockDeliveryCallback> dcb1;
NiceMock<MockDeliveryCallback> dcb2;
NiceMock<MockDataRejectedCallback> dataRejectedCb1;
NiceMock<MockDataRejectedCallback> dataRejectedCb2;
transport->registerDeliveryCallback(stream1, 10, &dcb1);
transport->registerDeliveryCallback(stream1, 25, &dcb1);
transport->registerDeliveryCallback(stream2, 20, &dcb2);
transport->registerDeliveryCallback(stream2, 29, &dcb2);
transport->setDataRejectedCallback(stream1, &dataRejectedCb1);
transport->setDataRejectedCallback(stream2, &dataRejectedCb2);
EXPECT_CALL(dcb1, onCanceled(stream1, 10)).Times(1);
EXPECT_CALL(dcb2, onCanceled(_, _)).Times(0);
EXPECT_CALL(dataRejectedCb1, onDataRejected(stream1, 15));
transport->addMinStreamDataFrameToStream(
MinStreamDataFrame(stream1, kDefaultStreamWindowSize, 15));
Mock::VerifyAndClearExpectations(&dcb1);
Mock::VerifyAndClearExpectations(&dcb2);
Mock::VerifyAndClearExpectations(&dataRejectedCb1);
EXPECT_CALL(dcb1, onCanceled(_, _)).Times(0);
EXPECT_CALL(dcb2, onCanceled(stream2, 20)).Times(1);
EXPECT_CALL(dataRejectedCb2, onDataRejected(stream2, 23));
transport->addMinStreamDataFrameToStream(
MinStreamDataFrame(stream2, kDefaultStreamWindowSize, 23));
Mock::VerifyAndClearExpectations(&dcb1);
Mock::VerifyAndClearExpectations(&dcb2);
Mock::VerifyAndClearExpectations(&dataRejectedCb2);
EXPECT_CALL(dcb1, onCanceled(stream1, 25)).Times(1);
EXPECT_CALL(dcb2, onCanceled(stream2, 29)).Times(1);
transport->close(folly::none);
}
TEST_F(QuicTransportImplTest, DataRejectedCallbackChangeCallback) {
transport->transportConn->partialReliabilityEnabled = true;
auto stream1 = transport->createBidirectionalStream().value();
NiceMock<MockDataRejectedCallback> dataRejectedCb1;
NiceMock<MockDataRejectedCallback> dataRejectedCb2;
transport->setDataRejectedCallback(stream1, &dataRejectedCb1);
EXPECT_CALL(dataRejectedCb1, onDataRejected(stream1, 5));
transport->addMinStreamDataFrameToStream(
MinStreamDataFrame(stream1, kDefaultStreamWindowSize, 5));
transport->setDataRejectedCallback(stream1, &dataRejectedCb2);
EXPECT_CALL(dataRejectedCb2, onDataRejected(stream1, 6));
transport->addMinStreamDataFrameToStream(
MinStreamDataFrame(stream1, kDefaultStreamWindowSize, 6));
transport.reset();
}
TEST_F(QuicTransportImplTest, DataRejectedCallbackNoCallbackSet) {
transport->transportConn->partialReliabilityEnabled = true;
auto stream1 = transport->createBidirectionalStream().value();
transport->addMinStreamDataFrameToStream(
MinStreamDataFrame(stream1, kDefaultStreamWindowSize, 5));
transport->addMinStreamDataFrameToStream(
MinStreamDataFrame(stream1, kDefaultStreamWindowSize, 6));
transport.reset();
}
TEST_F(QuicTransportImplTest, DataRejectedCallbackInvalidStream) {
transport->transportConn->partialReliabilityEnabled = true;
NiceMock<MockDataRejectedCallback> dataRejectedCb1;
StreamId invalidStream = 10;
EXPECT_TRUE(
transport->setDataRejectedCallback(invalidStream, &dataRejectedCb1)
.hasError());
transport.reset();
}
TEST_F(QuicTransportImplTest, SendDataRejected) {
transport->transportConn->partialReliabilityEnabled = true;
auto stream1 = transport->createBidirectionalStream().value();
auto streamState =
transport->transportConn->streamManager->getStream(stream1);
streamState->currentReceiveOffset = 0;
// Expect currentReceiveOffset to move to 5.
auto res = transport->sendDataRejected(stream1, 5);
EXPECT_EQ(res.hasError(), false);
auto newOffsetOpt = res.value();
EXPECT_EQ(newOffsetOpt.has_value(), true);
EXPECT_EQ(newOffsetOpt.value(), 5);
EXPECT_EQ(streamState->currentReceiveOffset, 5);
// Expect currentReceiveOffset to stay the same.
res = transport->sendDataRejected(stream1, 3);
EXPECT_EQ(res.hasError(), false);
newOffsetOpt = res.value();
EXPECT_EQ(newOffsetOpt.has_value(), false);
EXPECT_EQ(streamState->currentReceiveOffset, 5);
transport.reset();
}
TEST_F(QuicTransportImplTest, CloseFromCancelDeliveryCallbacksForStream) {
auto stream1 = *transport->createBidirectionalStream();
auto stream2 = *transport->createBidirectionalStream();
NiceMock<MockDeliveryCallback> deliveryCallback1;
NiceMock<MockDeliveryCallback> deliveryCallback2;
NiceMock<MockDeliveryCallback> deliveryCallback3;
transport->registerDeliveryCallback(stream1, 10, &deliveryCallback1);
transport->registerDeliveryCallback(stream1, 20, &deliveryCallback2);
transport->registerDeliveryCallback(stream2, 10, &deliveryCallback3);
EXPECT_CALL(deliveryCallback1, onCanceled(stream1, _))
.WillOnce(Invoke([&](auto, auto) { transport->close(folly::none); }));
EXPECT_CALL(deliveryCallback2, onCanceled(stream1, _));
EXPECT_CALL(deliveryCallback3, onCanceled(stream2, _));
transport->cancelDeliveryCallbacksForStream(stream1);
}
TEST_F(QuicTransportImplTest, SuccessfulPing) {
auto conn = transport->transportConn;
std::chrono::milliseconds interval(10);
TestPingCallback pingCallback;
transport->invokeSendPing(&pingCallback, interval);
EXPECT_EQ(transport->isPingTimeoutScheduled(), true);
EXPECT_EQ(conn->pendingEvents.cancelPingTimeout, false);
conn->pendingEvents.cancelPingTimeout = true;
transport->invokeHandlePingCallback();
evb->loopOnce();
EXPECT_EQ(transport->isPingTimeoutScheduled(), false);
EXPECT_EQ(conn->pendingEvents.cancelPingTimeout, false);
}
TEST_F(QuicTransportImplTest, FailedPing) {
auto conn = transport->transportConn;
std::chrono::milliseconds interval(10);
TestPingCallback pingCallback;
transport->invokeSendPing(&pingCallback, interval);
EXPECT_EQ(transport->isPingTimeoutScheduled(), true);
EXPECT_EQ(conn->pendingEvents.cancelPingTimeout, false);
conn->pendingEvents.cancelPingTimeout = true;
transport->invokeCancelPingTimeout();
transport->invokeHandlePingCallback();
EXPECT_EQ(conn->pendingEvents.cancelPingTimeout, false);
}
TEST_F(QuicTransportImplTest, StreamWriteCallbackUnregister) {
auto stream = transport->createBidirectionalStream().value();
// Unset before set
EXPECT_FALSE(transport->unregisterStreamWriteCallback(stream));
// Set
auto wcb = std::make_unique<MockWriteCallback>();
EXPECT_CALL(*wcb, onStreamWriteReady(stream, _)).Times(1);
auto result = transport->notifyPendingWriteOnStream(stream, wcb.get());
EXPECT_TRUE(result);
evb->loopOnce();
// Set then unset
EXPECT_CALL(*wcb, onStreamWriteReady(stream, _)).Times(0);
result = transport->notifyPendingWriteOnStream(stream, wcb.get());
EXPECT_TRUE(result);
EXPECT_TRUE(transport->unregisterStreamWriteCallback(stream));
evb->loopOnce();
// Set, close, unset
result = transport->notifyPendingWriteOnStream(stream, wcb.get());
EXPECT_TRUE(result);
MockReadCallback rcb;
transport->setReadCallback(stream, &rcb);
// ReadCallback kills WriteCallback
EXPECT_CALL(rcb, readError(stream, _))
.WillOnce(Invoke([&](StreamId stream, auto) {
EXPECT_TRUE(transport->unregisterStreamWriteCallback(stream));
wcb.reset();
}));
transport->close(folly::none);
evb->loopOnce();
}
TEST_F(QuicTransportImplTest, LifecycleObserverAttachRemove) {
auto cb = std::make_unique<StrictMock<MockLifecycleObserver>>();
EXPECT_CALL(*cb, observerAttach(transport.get()));
transport->addLifecycleObserver(cb.get());
EXPECT_THAT(
transport->getLifecycleObservers(), UnorderedElementsAre(cb.get()));
EXPECT_CALL(*cb, observerDetach(transport.get()));
EXPECT_TRUE(transport->removeLifecycleObserver(cb.get()));
Mock::VerifyAndClearExpectations(cb.get());
EXPECT_THAT(transport->getLifecycleObservers(), IsEmpty());
}
TEST_F(QuicTransportImplTest, LifecycleObserverRemoveMissing) {
auto cb = std::make_unique<StrictMock<MockLifecycleObserver>>();
EXPECT_FALSE(transport->removeLifecycleObserver(cb.get()));
EXPECT_THAT(transport->getLifecycleObservers(), IsEmpty());
}
TEST_F(QuicTransportImplTest, LifecycleObserverDestroyTransport) {
auto cb = std::make_unique<StrictMock<MockLifecycleObserver>>();
EXPECT_CALL(*cb, observerAttach(transport.get()));
transport->addLifecycleObserver(cb.get());
EXPECT_THAT(
transport->getLifecycleObservers(), UnorderedElementsAre(cb.get()));
InSequence s;
EXPECT_CALL(*cb, close(transport.get(), _)).Times(2);
EXPECT_CALL(*cb, destroy(transport.get()));
transport = nullptr;
Mock::VerifyAndClearExpectations(cb.get());
}
TEST_F(
QuicTransportImplTest,
LifecycleObserverCloseNoErrorThenDestroyTransport) {
auto cb = std::make_unique<StrictMock<MockLifecycleObserver>>();
EXPECT_CALL(*cb, observerAttach(transport.get()));
transport->addLifecycleObserver(cb.get());
EXPECT_THAT(
transport->getLifecycleObservers(), UnorderedElementsAre(cb.get()));
const std::pair<QuicErrorCode, std::string> defaultError = std::make_pair(
GenericApplicationErrorCode::NO_ERROR,
toString(GenericApplicationErrorCode::NO_ERROR));
EXPECT_CALL(*cb, close(transport.get(), folly::Optional(defaultError)));
transport->close(folly::none);
Mock::VerifyAndClearExpectations(cb.get());
InSequence s;
EXPECT_CALL(*cb, close(transport.get(), _)).Times(2);
EXPECT_CALL(*cb, destroy(transport.get()));
transport = nullptr;
Mock::VerifyAndClearExpectations(cb.get());
}
TEST_F(
QuicTransportImplTest,
LifecycleObserverCloseWithErrorThenDestroyTransport) {
auto cb = std::make_unique<StrictMock<MockLifecycleObserver>>();
EXPECT_CALL(*cb, observerAttach(transport.get()));
transport->addLifecycleObserver(cb.get());
EXPECT_THAT(
transport->getLifecycleObservers(), UnorderedElementsAre(cb.get()));
const auto testError = std::make_pair(
QuicErrorCode(LocalErrorCode::CONNECTION_RESET),
std::string("testError"));
EXPECT_CALL(*cb, close(transport.get(), folly::Optional(testError)));
transport->close(testError);
Mock::VerifyAndClearExpectations(cb.get());
InSequence s;
EXPECT_CALL(*cb, close(transport.get(), _)).Times(2);
EXPECT_CALL(*cb, destroy(transport.get()));
transport = nullptr;
Mock::VerifyAndClearExpectations(cb.get());
}
TEST_F(QuicTransportImplTest, LifecycleObserverDetachObserverImmediately) {
auto cb = std::make_unique<StrictMock<MockLifecycleObserver>>();
EXPECT_CALL(*cb, observerAttach(transport.get()));
transport->addLifecycleObserver(cb.get());
EXPECT_THAT(
transport->getLifecycleObservers(), UnorderedElementsAre(cb.get()));
EXPECT_CALL(*cb, observerDetach(transport.get()));
EXPECT_TRUE(transport->removeLifecycleObserver(cb.get()));
Mock::VerifyAndClearExpectations(cb.get());
EXPECT_THAT(transport->getLifecycleObservers(), IsEmpty());
}
TEST_F(
QuicTransportImplTest,
LifecycleObserverDetachObserverAfterTransportClose) {
auto cb = std::make_unique<StrictMock<MockLifecycleObserver>>();
EXPECT_CALL(*cb, observerAttach(transport.get()));
transport->addLifecycleObserver(cb.get());
EXPECT_THAT(
transport->getLifecycleObservers(), UnorderedElementsAre(cb.get()));
EXPECT_CALL(*cb, close(transport.get(), _));
transport->close(folly::none);
Mock::VerifyAndClearExpectations(cb.get());
EXPECT_CALL(*cb, observerDetach(transport.get()));
EXPECT_TRUE(transport->removeLifecycleObserver(cb.get()));
Mock::VerifyAndClearExpectations(cb.get());
EXPECT_THAT(transport->getLifecycleObservers(), IsEmpty());
}
TEST_F(
QuicTransportImplTest,
LifecycleObserverDetachObserverOnCloseDuringTransportDestroy) {
auto cb = std::make_unique<StrictMock<MockLifecycleObserver>>();
EXPECT_CALL(*cb, observerAttach(transport.get()));
transport->addLifecycleObserver(cb.get());
EXPECT_THAT(
transport->getLifecycleObservers(), UnorderedElementsAre(cb.get()));
InSequence s;
EXPECT_CALL(*cb, close(transport.get(), _))
.WillOnce(Invoke([&cb](auto callbackTransport, auto /* errorOpt */) {
EXPECT_TRUE(callbackTransport->removeLifecycleObserver(cb.get()));
}));
EXPECT_CALL(*cb, observerDetach(transport.get()));
transport = nullptr;
Mock::VerifyAndClearExpectations(cb.get());
}
TEST_F(QuicTransportImplTest, LifecycleObserverMultipleAttachRemove) {
auto cb1 = std::make_unique<StrictMock<MockLifecycleObserver>>();
EXPECT_CALL(*cb1, observerAttach(transport.get()));
transport->addLifecycleObserver(cb1.get());
EXPECT_THAT(
transport->getLifecycleObservers(), UnorderedElementsAre(cb1.get()));
auto cb2 = std::make_unique<StrictMock<MockLifecycleObserver>>();
EXPECT_CALL(*cb2, observerAttach(transport.get()));
transport->addLifecycleObserver(cb2.get());
EXPECT_THAT(
transport->getLifecycleObservers(),
UnorderedElementsAre(cb1.get(), cb2.get()));
EXPECT_CALL(*cb2, observerDetach(transport.get()));
EXPECT_TRUE(transport->removeLifecycleObserver(cb2.get()));
EXPECT_THAT(
transport->getLifecycleObservers(), UnorderedElementsAre(cb1.get()));
Mock::VerifyAndClearExpectations(cb1.get());
Mock::VerifyAndClearExpectations(cb2.get());
EXPECT_CALL(*cb1, observerDetach(transport.get()));
EXPECT_TRUE(transport->removeLifecycleObserver(cb1.get()));
EXPECT_THAT(transport->getLifecycleObservers(), IsEmpty());
Mock::VerifyAndClearExpectations(cb1.get());
Mock::VerifyAndClearExpectations(cb2.get());
transport = nullptr;
}
TEST_F(QuicTransportImplTest, LifecycleObserverMultipleAttachDestroyTransport) {
auto cb1 = std::make_unique<StrictMock<MockLifecycleObserver>>();
EXPECT_CALL(*cb1, observerAttach(transport.get()));
transport->addLifecycleObserver(cb1.get());
EXPECT_THAT(
transport->getLifecycleObservers(), UnorderedElementsAre(cb1.get()));
auto cb2 = std::make_unique<StrictMock<MockLifecycleObserver>>();
EXPECT_CALL(*cb2, observerAttach(transport.get()));
transport->addLifecycleObserver(cb2.get());
EXPECT_THAT(
transport->getLifecycleObservers(),
UnorderedElementsAre(cb1.get(), cb2.get()));
InSequence s;
EXPECT_CALL(*cb1, close(transport.get(), _));
EXPECT_CALL(*cb2, close(transport.get(), _));
EXPECT_CALL(*cb1, close(transport.get(), _));
EXPECT_CALL(*cb2, close(transport.get(), _));
EXPECT_CALL(*cb1, destroy(transport.get()));
EXPECT_CALL(*cb2, destroy(transport.get()));
transport = nullptr;
Mock::VerifyAndClearExpectations(cb1.get());
Mock::VerifyAndClearExpectations(cb2.get());
}
TEST_F(QuicTransportImplTest, InstrumentationObserverAttachRemove) {
auto cb = std::make_unique<StrictMock<MockInstrumentationObserver>>();
transport->addInstrumentationObserver(cb.get());
EXPECT_THAT(
transport->getInstrumentationObservers(), UnorderedElementsAre(cb.get()));
EXPECT_CALL(*cb, observerDetach(transport.get()));
EXPECT_TRUE(transport->removeInstrumentationObserver(cb.get()));
Mock::VerifyAndClearExpectations(cb.get());
EXPECT_THAT(transport->getInstrumentationObservers(), IsEmpty());
}
TEST_F(QuicTransportImplTest, InstrumentationObserverRemoveMissing) {
auto cb = std::make_unique<StrictMock<MockInstrumentationObserver>>();
EXPECT_FALSE(transport->removeInstrumentationObserver(cb.get()));
EXPECT_THAT(transport->getInstrumentationObservers(), IsEmpty());
}
TEST_F(QuicTransportImplTest, InstrumentationObserverAttachDestroyTransport) {
auto cb = std::make_unique<StrictMock<MockInstrumentationObserver>>();
transport->addInstrumentationObserver(cb.get());
EXPECT_THAT(
transport->getInstrumentationObservers(), UnorderedElementsAre(cb.get()));
EXPECT_CALL(*cb, observerDetach(transport.get()));
transport = nullptr;
Mock::VerifyAndClearExpectations(cb.get());
}
TEST_F(QuicTransportImplTest, InstrumentationObserverMultipleAttachRemove) {
auto cb1 = std::make_unique<StrictMock<MockInstrumentationObserver>>();
transport->addInstrumentationObserver(cb1.get());
EXPECT_THAT(
transport->getInstrumentationObservers(),
UnorderedElementsAre(cb1.get()));
auto cb2 = std::make_unique<StrictMock<MockInstrumentationObserver>>();
transport->addInstrumentationObserver(cb2.get());
EXPECT_THAT(
transport->getInstrumentationObservers(),
UnorderedElementsAre(cb1.get(), cb2.get()));
EXPECT_CALL(*cb2, observerDetach(transport.get()));
EXPECT_TRUE(transport->removeInstrumentationObserver(cb2.get()));
EXPECT_THAT(
transport->getInstrumentationObservers(),
UnorderedElementsAre(cb1.get()));
Mock::VerifyAndClearExpectations(cb1.get());
Mock::VerifyAndClearExpectations(cb2.get());
EXPECT_CALL(*cb1, observerDetach(transport.get()));
EXPECT_TRUE(transport->removeInstrumentationObserver(cb1.get()));
EXPECT_THAT(transport->getInstrumentationObservers(), IsEmpty());
Mock::VerifyAndClearExpectations(cb1.get());
Mock::VerifyAndClearExpectations(cb2.get());
transport = nullptr;
}
TEST_F(
QuicTransportImplTest,
InstrumentationObserverMultipleAttachDestroyTransport) {
auto cb1 = std::make_unique<StrictMock<MockInstrumentationObserver>>();
transport->addInstrumentationObserver(cb1.get());
EXPECT_THAT(
transport->getInstrumentationObservers(),
UnorderedElementsAre(cb1.get()));
auto cb2 = std::make_unique<StrictMock<MockInstrumentationObserver>>();
transport->addInstrumentationObserver(cb2.get());
EXPECT_THAT(
transport->getInstrumentationObservers(),
UnorderedElementsAre(cb1.get(), cb2.get()));
EXPECT_CALL(*cb1, observerDetach(transport.get()));
EXPECT_CALL(*cb2, observerDetach(transport.get()));
transport = nullptr;
Mock::VerifyAndClearExpectations(cb1.get());
Mock::VerifyAndClearExpectations(cb2.get());
}
} // namespace test
} // namespace quic
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