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|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stddef.h>
#include <string>
#include <sys/epoll.h>
#include <vector>
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/singleton.h"
#include "base/strings/string_number_conversions.h"
#include "base/synchronization/waitable_event.h"
#include "net/base/ip_endpoint.h"
#include "net/quic/congestion_control/tcp_cubic_sender.h"
#include "net/quic/crypto/aes_128_gcm_12_encrypter.h"
#include "net/quic/crypto/null_encrypter.h"
#include "net/quic/quic_framer.h"
#include "net/quic/quic_packet_creator.h"
#include "net/quic/quic_protocol.h"
#include "net/quic/quic_sent_packet_manager.h"
#include "net/quic/quic_session_key.h"
#include "net/quic/test_tools/quic_connection_peer.h"
#include "net/quic/test_tools/quic_session_peer.h"
#include "net/quic/test_tools/quic_test_utils.h"
#include "net/quic/test_tools/reliable_quic_stream_peer.h"
#include "net/test/gtest_util.h"
#include "net/tools/quic/quic_epoll_connection_helper.h"
#include "net/tools/quic/quic_in_memory_cache.h"
#include "net/tools/quic/quic_packet_writer_wrapper.h"
#include "net/tools/quic/quic_server.h"
#include "net/tools/quic/quic_socket_utils.h"
#include "net/tools/quic/quic_spdy_client_stream.h"
#include "net/tools/quic/test_tools/http_message.h"
#include "net/tools/quic/test_tools/packet_dropping_test_writer.h"
#include "net/tools/quic/test_tools/quic_client_peer.h"
#include "net/tools/quic/test_tools/quic_dispatcher_peer.h"
#include "net/tools/quic/test_tools/quic_in_memory_cache_peer.h"
#include "net/tools/quic/test_tools/quic_server_peer.h"
#include "net/tools/quic/test_tools/quic_test_client.h"
#include "net/tools/quic/test_tools/server_thread.h"
#include "testing/gtest/include/gtest/gtest.h"
using base::StringPiece;
using base::WaitableEvent;
using net::test::QuicConnectionPeer;
using net::test::QuicSessionPeer;
using net::test::ReliableQuicStreamPeer;
using net::tools::test::PacketDroppingTestWriter;
using net::tools::test::QuicDispatcherPeer;
using net::tools::test::QuicServerPeer;
using std::ostream;
using std::string;
using std::vector;
namespace net {
namespace tools {
namespace test {
namespace {
const char* kFooResponseBody = "Artichoke hearts make me happy.";
const char* kBarResponseBody = "Palm hearts are pretty delicious, also.";
void GenerateBody(string* body, int length) {
body->clear();
body->reserve(length);
for (int i = 0; i < length; ++i) {
body->append(1, static_cast<char>(32 + i % (126 - 32)));
}
}
// Run all tests with the cross products of all versions.
struct TestParams {
TestParams(const QuicVersionVector& client_supported_versions,
const QuicVersionVector& server_supported_versions,
QuicVersion negotiated_version,
bool use_pacing)
: client_supported_versions(client_supported_versions),
server_supported_versions(server_supported_versions),
negotiated_version(negotiated_version),
use_pacing(use_pacing) {
}
friend ostream& operator<<(ostream& os, const TestParams& p) {
os << "{ server_supported_versions: "
<< QuicVersionVectorToString(p.server_supported_versions);
os << " client_supported_versions: "
<< QuicVersionVectorToString(p.client_supported_versions);
os << " negotiated_version: " << QuicVersionToString(p.negotiated_version);
os << " use_pacing: " << p.use_pacing << " }";
return os;
}
QuicVersionVector client_supported_versions;
QuicVersionVector server_supported_versions;
QuicVersion negotiated_version;
bool use_pacing;
};
// Constructs various test permutations.
vector<TestParams> GetTestParams() {
vector<TestParams> params;
QuicVersionVector all_supported_versions = QuicSupportedVersions();
for (int use_pacing = 0; use_pacing < 2; ++use_pacing) {
// Add an entry for server and client supporting all versions.
params.push_back(TestParams(all_supported_versions,
all_supported_versions,
all_supported_versions[0],
use_pacing != 0));
// Test client supporting all versions and server supporting 1 version.
// Simulate an old server and exercise version downgrade in the client.
// Protocol negotiation should occur. Skip the i = 0 case because it is
// essentially the same as the default case.
for (size_t i = 1; i < all_supported_versions.size(); ++i) {
QuicVersionVector server_supported_versions;
server_supported_versions.push_back(all_supported_versions[i]);
params.push_back(TestParams(all_supported_versions,
server_supported_versions,
server_supported_versions[0],
use_pacing != 0));
}
}
return params;
}
class ServerDelegate : public PacketDroppingTestWriter::Delegate {
public:
explicit ServerDelegate(QuicDispatcher* dispatcher)
: dispatcher_(dispatcher) {}
virtual ~ServerDelegate() {}
virtual void OnCanWrite() OVERRIDE { dispatcher_->OnCanWrite(); }
private:
QuicDispatcher* dispatcher_;
};
class ClientDelegate : public PacketDroppingTestWriter::Delegate {
public:
explicit ClientDelegate(QuicClient* client) : client_(client) {}
virtual ~ClientDelegate() {}
virtual void OnCanWrite() OVERRIDE {
EpollEvent event(EPOLLOUT, false);
client_->OnEvent(client_->fd(), &event);
}
private:
QuicClient* client_;
};
class EndToEndTest : public ::testing::TestWithParam<TestParams> {
protected:
EndToEndTest()
: server_started_(false),
strike_register_no_startup_period_(false) {
net::IPAddressNumber ip;
CHECK(net::ParseIPLiteralToNumber("127.0.0.1", &ip));
uint port = 0;
server_address_ = IPEndPoint(ip, port);
server_key_ = QuicSessionKey("example.com", port, false);
client_supported_versions_ = GetParam().client_supported_versions;
server_supported_versions_ = GetParam().server_supported_versions;
negotiated_version_ = GetParam().negotiated_version;
FLAGS_enable_quic_pacing = GetParam().use_pacing;
VLOG(1) << "Using Configuration: " << GetParam();
client_config_.SetDefaults();
server_config_.SetDefaults();
server_config_.set_initial_round_trip_time_us(kMaxInitialRoundTripTimeUs,
0);
QuicInMemoryCachePeer::ResetForTests();
AddToCache("GET", "https://www.google.com/foo",
"HTTP/1.1", "200", "OK", kFooResponseBody);
AddToCache("GET", "https://www.google.com/bar",
"HTTP/1.1", "200", "OK", kBarResponseBody);
}
virtual ~EndToEndTest() {
// TODO(rtenneti): port RecycleUnusedPort if needed.
// RecycleUnusedPort(server_address_.port());
QuicInMemoryCachePeer::ResetForTests();
}
QuicTestClient* CreateQuicClient(QuicPacketWriterWrapper* writer) {
QuicTestClient* client = new QuicTestClient(server_address_,
server_key_,
false, // not secure
client_config_,
client_supported_versions_);
client->UseWriter(writer);
client->Connect();
return client;
}
bool Initialize() {
// Start the server first, because CreateQuicClient() attempts
// to connect to the server.
StartServer();
client_.reset(CreateQuicClient(client_writer_));
static EpollEvent event(EPOLLOUT, false);
client_writer_->Initialize(
reinterpret_cast<QuicEpollConnectionHelper*>(
QuicConnectionPeer::GetHelper(
client_->client()->session()->connection())),
new ClientDelegate(client_->client()));
return client_->client()->connected();
}
virtual void SetUp() OVERRIDE {
// The ownership of these gets transferred to the QuicPacketWriterWrapper
// and QuicDispatcher when Initialize() is executed.
client_writer_ = new PacketDroppingTestWriter();
server_writer_ = new PacketDroppingTestWriter();
}
virtual void TearDown() OVERRIDE {
StopServer();
}
void StartServer() {
server_thread_.reset(new ServerThread(server_address_, server_config_,
server_supported_versions_,
strike_register_no_startup_period_));
server_thread_->Initialize();
server_address_ = IPEndPoint(server_address_.address(),
server_thread_->GetPort());
server_key_ = QuicSessionKey(server_key_.host(),
server_thread_->GetPort(), false);
QuicDispatcher* dispatcher =
QuicServerPeer::GetDispatcher(server_thread_->server());
QuicDispatcherPeer::UseWriter(dispatcher, server_writer_);
server_writer_->Initialize(
QuicDispatcherPeer::GetHelper(dispatcher),
new ServerDelegate(dispatcher));
server_thread_->Start();
server_started_ = true;
}
void StopServer() {
if (!server_started_)
return;
if (server_thread_.get()) {
server_thread_->Quit();
server_thread_->Join();
}
}
void AddToCache(StringPiece method,
StringPiece path,
StringPiece version,
StringPiece response_code,
StringPiece response_detail,
StringPiece body) {
QuicInMemoryCache::GetInstance()->AddSimpleResponse(
method, path, version, response_code, response_detail, body);
}
void SetPacketLossPercentage(int32 loss) {
// TODO(rtenneti): enable when we can do random packet loss tests in
// chrome's tree.
if (loss != 0 && loss != 100)
return;
client_writer_->set_fake_packet_loss_percentage(loss);
server_writer_->set_fake_packet_loss_percentage(loss);
}
void SetPacketSendDelay(QuicTime::Delta delay) {
// TODO(rtenneti): enable when we can do random packet send delay tests in
// chrome's tree.
// client_writer_->set_fake_packet_delay(delay);
// server_writer_->set_fake_packet_delay(delay);
}
void SetReorderPercentage(int32 reorder) {
// TODO(rtenneti): enable when we can do random packet reorder tests in
// chrome's tree.
// client_writer_->set_fake_reorder_percentage(reorder);
// server_writer_->set_fake_reorder_percentage(reorder);
}
IPEndPoint server_address_;
QuicSessionKey server_key_;
scoped_ptr<ServerThread> server_thread_;
scoped_ptr<QuicTestClient> client_;
PacketDroppingTestWriter* client_writer_;
PacketDroppingTestWriter* server_writer_;
bool server_started_;
QuicConfig client_config_;
QuicConfig server_config_;
QuicVersionVector client_supported_versions_;
QuicVersionVector server_supported_versions_;
QuicVersion negotiated_version_;
bool strike_register_no_startup_period_;
};
// Run all end to end tests with all supported versions.
INSTANTIATE_TEST_CASE_P(EndToEndTests,
EndToEndTest,
::testing::ValuesIn(GetTestParams()));
TEST_P(EndToEndTest, SimpleRequestResponse) {
ASSERT_TRUE(Initialize());
EXPECT_EQ(kFooResponseBody, client_->SendSynchronousRequest("/foo"));
EXPECT_EQ(200u, client_->response_headers()->parsed_response_code());
}
// TODO(rch): figure out how to detect missing v6 supprt (like on the linux
// try bots) and selectively disable this test.
TEST_P(EndToEndTest, DISABLED_SimpleRequestResponsev6) {
IPAddressNumber ip;
CHECK(net::ParseIPLiteralToNumber("::1", &ip));
server_address_ = IPEndPoint(ip, server_address_.port());
ASSERT_TRUE(Initialize());
EXPECT_EQ(kFooResponseBody, client_->SendSynchronousRequest("/foo"));
EXPECT_EQ(200u, client_->response_headers()->parsed_response_code());
}
TEST_P(EndToEndTest, SeparateFinPacket) {
ASSERT_TRUE(Initialize());
HTTPMessage request(HttpConstants::HTTP_1_1,
HttpConstants::POST, "/foo");
request.set_has_complete_message(false);
client_->SendMessage(request);
client_->SendData(string(), true);
client_->WaitForResponse();
EXPECT_EQ(kFooResponseBody, client_->response_body());
EXPECT_EQ(200u, client_->response_headers()->parsed_response_code());
request.AddBody("foo", true);
client_->SendMessage(request);
client_->SendData(string(), true);
client_->WaitForResponse();
EXPECT_EQ(kFooResponseBody, client_->response_body());
EXPECT_EQ(200u, client_->response_headers()->parsed_response_code());
}
TEST_P(EndToEndTest, MultipleRequestResponse) {
ASSERT_TRUE(Initialize());
EXPECT_EQ(kFooResponseBody, client_->SendSynchronousRequest("/foo"));
EXPECT_EQ(200u, client_->response_headers()->parsed_response_code());
EXPECT_EQ(kBarResponseBody, client_->SendSynchronousRequest("/bar"));
EXPECT_EQ(200u, client_->response_headers()->parsed_response_code());
}
TEST_P(EndToEndTest, MultipleClients) {
ASSERT_TRUE(Initialize());
scoped_ptr<QuicTestClient> client2(CreateQuicClient(NULL));
HTTPMessage request(HttpConstants::HTTP_1_1,
HttpConstants::POST, "/foo");
request.AddHeader("content-length", "3");
request.set_has_complete_message(false);
client_->SendMessage(request);
client2->SendMessage(request);
client_->SendData("bar", true);
client_->WaitForResponse();
EXPECT_EQ(kFooResponseBody, client_->response_body());
EXPECT_EQ(200u, client_->response_headers()->parsed_response_code());
client2->SendData("eep", true);
client2->WaitForResponse();
EXPECT_EQ(kFooResponseBody, client2->response_body());
EXPECT_EQ(200u, client2->response_headers()->parsed_response_code());
}
TEST_P(EndToEndTest, RequestOverMultiplePackets) {
// Send a large enough request to guarantee fragmentation.
string huge_request =
"https://www.google.com/some/path?query=" + string(kMaxPacketSize, '.');
AddToCache("GET", huge_request, "HTTP/1.1", "200", "OK", kBarResponseBody);
ASSERT_TRUE(Initialize());
EXPECT_EQ(kBarResponseBody, client_->SendSynchronousRequest(huge_request));
EXPECT_EQ(200u, client_->response_headers()->parsed_response_code());
}
TEST_P(EndToEndTest, MultiplePacketsRandomOrder) {
// Send a large enough request to guarantee fragmentation.
string huge_request =
"https://www.google.com/some/path?query=" + string(kMaxPacketSize, '.');
AddToCache("GET", huge_request, "HTTP/1.1", "200", "OK", kBarResponseBody);
ASSERT_TRUE(Initialize());
SetPacketSendDelay(QuicTime::Delta::FromMilliseconds(2));
SetReorderPercentage(50);
EXPECT_EQ(kBarResponseBody, client_->SendSynchronousRequest(huge_request));
EXPECT_EQ(200u, client_->response_headers()->parsed_response_code());
}
TEST_P(EndToEndTest, PostMissingBytes) {
ASSERT_TRUE(Initialize());
// Add a content length header with no body.
HTTPMessage request(HttpConstants::HTTP_1_1,
HttpConstants::POST, "/foo");
request.AddHeader("content-length", "3");
request.set_skip_message_validation(true);
// This should be detected as stream fin without complete request,
// triggering an error response.
client_->SendCustomSynchronousRequest(request);
EXPECT_EQ("bad", client_->response_body());
EXPECT_EQ(500u, client_->response_headers()->parsed_response_code());
}
TEST_P(EndToEndTest, LargePostNoPacketLoss) {
ASSERT_TRUE(Initialize());
client_->client()->WaitForCryptoHandshakeConfirmed();
// 1 Mb body.
string body;
GenerateBody(&body, 1024 * 1024);
HTTPMessage request(HttpConstants::HTTP_1_1,
HttpConstants::POST, "/foo");
request.AddBody(body, true);
EXPECT_EQ(kFooResponseBody, client_->SendCustomSynchronousRequest(request));
QuicConnectionStats stats =
client_->client()->session()->connection()->GetStats();
// TODO(ianswett): Restore the packets_lost expectation when fixing b/12887145
// EXPECT_EQ(0u, stats.packets_lost);
EXPECT_EQ(0u, stats.rto_count);
}
TEST_P(EndToEndTest, LargePostNoPacketLoss1sRTT) {
ASSERT_TRUE(Initialize());
SetPacketSendDelay(QuicTime::Delta::FromMilliseconds(1000));
client_->client()->WaitForCryptoHandshakeConfirmed();
// 1 Mb body.
string body;
GenerateBody(&body, 100 * 1024);
HTTPMessage request(HttpConstants::HTTP_1_1,
HttpConstants::POST, "/foo");
request.AddBody(body, true);
EXPECT_EQ(kFooResponseBody, client_->SendCustomSynchronousRequest(request));
QuicConnectionStats stats =
client_->client()->session()->connection()->GetStats();
EXPECT_EQ(0u, stats.packets_lost);
}
TEST_P(EndToEndTest, LargePostWithPacketLoss) {
// Connect with lower fake packet loss than we'd like to test. Until
// b/10126687 is fixed, losing handshake packets is pretty brutal.
SetPacketLossPercentage(5);
ASSERT_TRUE(Initialize());
// Wait for the server SHLO before upping the packet loss.
client_->client()->WaitForCryptoHandshakeConfirmed();
SetPacketLossPercentage(30);
// 10 Kb body.
string body;
GenerateBody(&body, 1024 * 10);
HTTPMessage request(HttpConstants::HTTP_1_1,
HttpConstants::POST, "/foo");
request.AddBody(body, true);
EXPECT_EQ(kFooResponseBody, client_->SendCustomSynchronousRequest(request));
}
TEST_P(EndToEndTest, LargePostNoPacketLossWithDelayAndReordering) {
ASSERT_TRUE(Initialize());
client_->client()->WaitForCryptoHandshakeConfirmed();
// Both of these must be called when the writer is not actively used.
SetPacketSendDelay(QuicTime::Delta::FromMilliseconds(2));
SetReorderPercentage(30);
// 1 Mb body.
string body;
GenerateBody(&body, 1024 * 1024);
HTTPMessage request(HttpConstants::HTTP_1_1,
HttpConstants::POST, "/foo");
request.AddBody(body, true);
EXPECT_EQ(kFooResponseBody, client_->SendCustomSynchronousRequest(request));
}
TEST_P(EndToEndTest, LargePostWithPacketLossAndBlockedSocket) {
// Connect with lower fake packet loss than we'd like to test. Until
// b/10126687 is fixed, losing handshake packets is pretty brutal.
SetPacketLossPercentage(5);
ASSERT_TRUE(Initialize());
// Wait for the server SHLO before upping the packet loss.
client_->client()->WaitForCryptoHandshakeConfirmed();
SetPacketLossPercentage(10);
client_writer_->set_fake_blocked_socket_percentage(10);
// 10 Kb body.
string body;
GenerateBody(&body, 1024 * 10);
HTTPMessage request(HttpConstants::HTTP_1_1,
HttpConstants::POST, "/foo");
request.AddBody(body, true);
EXPECT_EQ(kFooResponseBody, client_->SendCustomSynchronousRequest(request));
}
// TODO(rtenneti): rch is investigating the root cause. Will enable after we
// find the bug.
TEST_P(EndToEndTest, DISABLED_LargePostZeroRTTFailure) {
// Have the server accept 0-RTT without waiting a startup period.
strike_register_no_startup_period_ = true;
// Send a request and then disconnect. This prepares the client to attempt
// a 0-RTT handshake for the next request.
ASSERT_TRUE(Initialize());
string body;
GenerateBody(&body, 20480);
HTTPMessage request(HttpConstants::HTTP_1_1,
HttpConstants::POST, "/foo");
request.AddBody(body, true);
EXPECT_EQ(kFooResponseBody, client_->SendCustomSynchronousRequest(request));
EXPECT_EQ(2, client_->client()->session()->GetNumSentClientHellos());
client_->Disconnect();
// The 0-RTT handshake should succeed.
client_->Connect();
client_->WaitForResponseForMs(-1);
ASSERT_TRUE(client_->client()->connected());
EXPECT_EQ(kFooResponseBody, client_->SendCustomSynchronousRequest(request));
EXPECT_EQ(1, client_->client()->session()->GetNumSentClientHellos());
client_->Disconnect();
// Restart the server so that the 0-RTT handshake will take 1 RTT.
StopServer();
server_writer_ = new PacketDroppingTestWriter();
StartServer();
client_->Connect();
ASSERT_TRUE(client_->client()->connected());
EXPECT_EQ(kFooResponseBody, client_->SendCustomSynchronousRequest(request));
EXPECT_EQ(2, client_->client()->session()->GetNumSentClientHellos());
}
// TODO(ianswett): Enable once b/9295090 is fixed.
TEST_P(EndToEndTest, DISABLED_LargePostFEC) {
SetPacketLossPercentage(30);
ASSERT_TRUE(Initialize());
client_->options()->max_packets_per_fec_group = 6;
string body;
GenerateBody(&body, 10240);
HTTPMessage request(HttpConstants::HTTP_1_1,
HttpConstants::POST, "/foo");
request.AddBody(body, true);
EXPECT_EQ(kFooResponseBody, client_->SendCustomSynchronousRequest(request));
}
TEST_P(EndToEndTest, LargePostLargeBuffer) {
ASSERT_TRUE(Initialize());
SetPacketSendDelay(QuicTime::Delta::FromMicroseconds(1));
// 1Mbit per second with a 128k buffer from server to client. Wireless
// clients commonly have larger buffers, but our max CWND is 200.
server_writer_->set_max_bandwidth_and_buffer_size(
QuicBandwidth::FromBytesPerSecond(256 * 1024), 128 * 1024);
client_->client()->WaitForCryptoHandshakeConfirmed();
// 1 Mb body.
string body;
GenerateBody(&body, 1024 * 1024);
HTTPMessage request(HttpConstants::HTTP_1_1,
HttpConstants::POST, "/foo");
request.AddBody(body, true);
EXPECT_EQ(kFooResponseBody, client_->SendCustomSynchronousRequest(request));
}
TEST_P(EndToEndTest, InvalidStream) {
ASSERT_TRUE(Initialize());
client_->client()->WaitForCryptoHandshakeConfirmed();
string body;
GenerateBody(&body, kMaxPacketSize);
HTTPMessage request(HttpConstants::HTTP_1_1,
HttpConstants::POST, "/foo");
request.AddBody(body, true);
// Force the client to write with a stream ID belonging to a nonexistent
// server-side stream.
QuicSessionPeer::SetNextStreamId(client_->client()->session(), 2);
client_->SendCustomSynchronousRequest(request);
// EXPECT_EQ(QUIC_STREAM_CONNECTION_ERROR, client_->stream_error());
EXPECT_EQ(QUIC_PACKET_FOR_NONEXISTENT_STREAM, client_->connection_error());
}
// TODO(rch): this test seems to cause net_unittests timeouts :|
TEST_P(EndToEndTest, DISABLED_MultipleTermination) {
ASSERT_TRUE(Initialize());
HTTPMessage request(HttpConstants::HTTP_1_1,
HttpConstants::POST, "/foo");
request.AddHeader("content-length", "3");
request.set_has_complete_message(false);
// Set the offset so we won't frame. Otherwise when we pick up termination
// before HTTP framing is complete, we send an error and close the stream,
// and the second write is picked up as writing on a closed stream.
QuicSpdyClientStream* stream = client_->GetOrCreateStream();
ASSERT_TRUE(stream != NULL);
ReliableQuicStreamPeer::SetStreamBytesWritten(3, stream);
client_->SendData("bar", true);
client_->WaitForWriteToFlush();
// By default the stream protects itself from writes after terminte is set.
// Override this to test the server handling buggy clients.
ReliableQuicStreamPeer::SetWriteSideClosed(
false, client_->GetOrCreateStream());
EXPECT_DFATAL(client_->SendData("eep", true), "Fin already buffered");
}
TEST_P(EndToEndTest, Timeout) {
client_config_.set_idle_connection_state_lifetime(
QuicTime::Delta::FromMicroseconds(500),
QuicTime::Delta::FromMicroseconds(500));
// Note: we do NOT ASSERT_TRUE: we may time out during initial handshake:
// that's enough to validate timeout in this case.
Initialize();
while (client_->client()->connected()) {
client_->client()->WaitForEvents();
}
}
TEST_P(EndToEndTest, LimitMaxOpenStreams) {
// Server limits the number of max streams to 2.
server_config_.set_max_streams_per_connection(2, 2);
// Client tries to negotiate for 10.
client_config_.set_max_streams_per_connection(10, 5);
ASSERT_TRUE(Initialize());
client_->client()->WaitForCryptoHandshakeConfirmed();
QuicConfig* client_negotiated_config = client_->client()->session()->config();
EXPECT_EQ(2u, client_negotiated_config->max_streams_per_connection());
}
// TODO(rtenneti): DISABLED_LimitCongestionWindowAndRTT seems to be flaky.
// http://crbug.com/321870.
TEST_P(EndToEndTest, DISABLED_LimitCongestionWindowAndRTT) {
server_config_.set_server_initial_congestion_window(kMaxInitialWindow,
kDefaultInitialWindow);
// Client tries to negotiate twice the server's max and negotiation settles
// on the max.
client_config_.set_server_initial_congestion_window(2 * kMaxInitialWindow,
kDefaultInitialWindow);
client_config_.set_initial_round_trip_time_us(1, 1);
ASSERT_TRUE(Initialize());
client_->client()->WaitForCryptoHandshakeConfirmed();
server_thread_->WaitForCryptoHandshakeConfirmed();
// Pause the server so we can access the server's internals without races.
server_thread_->Pause();
QuicDispatcher* dispatcher =
QuicServerPeer::GetDispatcher(server_thread_->server());
ASSERT_EQ(1u, dispatcher->session_map().size());
QuicSession* session = dispatcher->session_map().begin()->second;
QuicConfig* client_negotiated_config = client_->client()->session()->config();
QuicConfig* server_negotiated_config = session->config();
const QuicSentPacketManager& client_sent_packet_manager =
client_->client()->session()->connection()->sent_packet_manager();
const QuicSentPacketManager& server_sent_packet_manager =
session->connection()->sent_packet_manager();
EXPECT_EQ(kMaxInitialWindow,
client_negotiated_config->server_initial_congestion_window());
EXPECT_EQ(kMaxInitialWindow,
server_negotiated_config->server_initial_congestion_window());
// The client shouldn't set it's initial window based on the negotiated value.
EXPECT_EQ(kDefaultInitialWindow * kDefaultTCPMSS,
client_sent_packet_manager.GetCongestionWindow());
EXPECT_EQ(kMaxInitialWindow * kDefaultTCPMSS,
server_sent_packet_manager.GetCongestionWindow());
EXPECT_EQ(FLAGS_enable_quic_pacing,
server_sent_packet_manager.using_pacing());
EXPECT_EQ(FLAGS_enable_quic_pacing,
client_sent_packet_manager.using_pacing());
EXPECT_EQ(1u, client_negotiated_config->initial_round_trip_time_us());
EXPECT_EQ(1u, server_negotiated_config->initial_round_trip_time_us());
// Now use the negotiated limits with packet loss.
SetPacketLossPercentage(30);
// 10 Kb body.
string body;
GenerateBody(&body, 1024 * 10);
HTTPMessage request(HttpConstants::HTTP_1_1,
HttpConstants::POST, "/foo");
request.AddBody(body, true);
server_thread_->Resume();
EXPECT_EQ(kFooResponseBody, client_->SendCustomSynchronousRequest(request));
}
TEST_P(EndToEndTest, InitialRTT) {
// Client tries to negotiate twice the server's max and negotiation settles
// on the max.
client_config_.set_initial_round_trip_time_us(2 * kMaxInitialRoundTripTimeUs,
0);
ASSERT_TRUE(Initialize());
client_->client()->WaitForCryptoHandshakeConfirmed();
server_thread_->WaitForCryptoHandshakeConfirmed();
server_thread_->Pause();
QuicDispatcher* dispatcher =
QuicServerPeer::GetDispatcher(server_thread_->server());
ASSERT_EQ(1u, dispatcher->session_map().size());
QuicSession* session = dispatcher->session_map().begin()->second;
QuicConfig* client_negotiated_config = client_->client()->session()->config();
QuicConfig* server_negotiated_config = session->config();
const QuicSentPacketManager& client_sent_packet_manager =
client_->client()->session()->connection()->sent_packet_manager();
const QuicSentPacketManager& server_sent_packet_manager =
session->connection()->sent_packet_manager();
EXPECT_EQ(kMaxInitialRoundTripTimeUs,
client_negotiated_config->initial_round_trip_time_us());
EXPECT_EQ(kMaxInitialRoundTripTimeUs,
server_negotiated_config->initial_round_trip_time_us());
// Now that acks have been exchanged, the RTT estimate has decreased on the
// server and is not infinite on the client.
EXPECT_FALSE(client_sent_packet_manager.SmoothedRtt().IsInfinite());
EXPECT_GE(static_cast<int64>(kMaxInitialRoundTripTimeUs),
server_sent_packet_manager.SmoothedRtt().ToMicroseconds());
server_thread_->Resume();
}
TEST_P(EndToEndTest, ResetConnection) {
ASSERT_TRUE(Initialize());
client_->client()->WaitForCryptoHandshakeConfirmed();
EXPECT_EQ(kFooResponseBody, client_->SendSynchronousRequest("/foo"));
EXPECT_EQ(200u, client_->response_headers()->parsed_response_code());
client_->ResetConnection();
EXPECT_EQ(kBarResponseBody, client_->SendSynchronousRequest("/bar"));
EXPECT_EQ(200u, client_->response_headers()->parsed_response_code());
}
TEST_P(EndToEndTest, MaxStreamsUberTest) {
SetPacketLossPercentage(1);
ASSERT_TRUE(Initialize());
string large_body;
GenerateBody(&large_body, 10240);
int max_streams = 100;
AddToCache("GET", "/large_response", "HTTP/1.1", "200", "OK", large_body);;
client_->client()->WaitForCryptoHandshakeConfirmed();
SetPacketLossPercentage(10);
for (int i = 0; i < max_streams; ++i) {
EXPECT_LT(0, client_->SendRequest("/large_response"));
}
// WaitForEvents waits 50ms and returns true if there are outstanding
// requests.
while (client_->client()->WaitForEvents() == true) {
}
}
TEST_P(EndToEndTest, StreamCancelErrorTest) {
ASSERT_TRUE(Initialize());
string small_body;
GenerateBody(&small_body, 256);
AddToCache("GET", "/small_response", "HTTP/1.1", "200", "OK", small_body);
client_->client()->WaitForCryptoHandshakeConfirmed();
QuicSession* session = client_->client()->session();
// Lose the request.
SetPacketLossPercentage(100);
EXPECT_LT(0, client_->SendRequest("/small_response"));
client_->client()->WaitForEvents();
// Transmit the cancel, and ensure the connection is torn down properly.
SetPacketLossPercentage(0);
QuicStreamId stream_id = 5;
session->SendRstStream(stream_id, QUIC_STREAM_CANCELLED, 0);
// WaitForEvents waits 50ms and returns true if there are outstanding
// requests.
while (client_->client()->WaitForEvents() == true) {
}
// It should be completely fine to RST a stream before any data has been
// received for that stream.
EXPECT_EQ(QUIC_NO_ERROR, client_->connection_error());
}
class WrongAddressWriter : public QuicPacketWriterWrapper {
public:
WrongAddressWriter() {
IPAddressNumber ip;
CHECK(net::ParseIPLiteralToNumber("127.0.0.2", &ip));
self_address_ = IPEndPoint(ip, 0);
}
virtual WriteResult WritePacket(
const char* buffer,
size_t buf_len,
const IPAddressNumber& real_self_address,
const IPEndPoint& peer_address) OVERRIDE {
// Use wrong address!
return QuicPacketWriterWrapper::WritePacket(
buffer, buf_len, self_address_.address(), peer_address);
}
virtual bool IsWriteBlockedDataBuffered() const OVERRIDE {
return false;
}
IPEndPoint self_address_;
};
TEST_P(EndToEndTest, ConnectionMigration) {
ASSERT_TRUE(Initialize());
EXPECT_EQ(kFooResponseBody, client_->SendSynchronousRequest("/foo"));
EXPECT_EQ(200u, client_->response_headers()->parsed_response_code());
scoped_ptr<WrongAddressWriter> writer(new WrongAddressWriter());
writer->set_writer(new QuicDefaultPacketWriter(
QuicClientPeer::GetFd(client_->client())));
QuicConnectionPeer::SetWriter(client_->client()->session()->connection(),
writer.get());
client_->SendSynchronousRequest("/bar");
EXPECT_EQ(QUIC_STREAM_CONNECTION_ERROR, client_->stream_error());
EXPECT_EQ(QUIC_ERROR_MIGRATING_ADDRESS, client_->connection_error());
}
} // namespace
} // namespace test
} // namespace tools
} // namespace net
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