diff options
Diffstat (limited to 'chromium/net/socket/transport_client_socket_pool_unittest.cc')
| -rw-r--r-- | chromium/net/socket/transport_client_socket_pool_unittest.cc | 1355 |
1 files changed, 1355 insertions, 0 deletions
diff --git a/chromium/net/socket/transport_client_socket_pool_unittest.cc b/chromium/net/socket/transport_client_socket_pool_unittest.cc new file mode 100644 index 00000000000..c607a38b78a --- /dev/null +++ b/chromium/net/socket/transport_client_socket_pool_unittest.cc @@ -0,0 +1,1355 @@ +// 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 "net/socket/transport_client_socket_pool.h" + +#include "base/bind.h" +#include "base/bind_helpers.h" +#include "base/callback.h" +#include "base/compiler_specific.h" +#include "base/logging.h" +#include "base/message_loop/message_loop.h" +#include "base/threading/platform_thread.h" +#include "net/base/capturing_net_log.h" +#include "net/base/ip_endpoint.h" +#include "net/base/load_timing_info.h" +#include "net/base/load_timing_info_test_util.h" +#include "net/base/net_errors.h" +#include "net/base/net_util.h" +#include "net/base/test_completion_callback.h" +#include "net/dns/mock_host_resolver.h" +#include "net/socket/client_socket_factory.h" +#include "net/socket/client_socket_handle.h" +#include "net/socket/client_socket_pool_histograms.h" +#include "net/socket/socket_test_util.h" +#include "net/socket/ssl_client_socket.h" +#include "net/socket/stream_socket.h" +#include "testing/gtest/include/gtest/gtest.h" + +namespace net { + +using internal::ClientSocketPoolBaseHelper; + +namespace { + +const int kMaxSockets = 32; +const int kMaxSocketsPerGroup = 6; +const net::RequestPriority kDefaultPriority = LOW; + +// Make sure |handle| sets load times correctly when it has been assigned a +// reused socket. +void TestLoadTimingInfoConnectedReused(const ClientSocketHandle& handle) { + LoadTimingInfo load_timing_info; + // Only pass true in as |is_reused|, as in general, HttpStream types should + // have stricter concepts of reuse than socket pools. + EXPECT_TRUE(handle.GetLoadTimingInfo(true, &load_timing_info)); + + EXPECT_TRUE(load_timing_info.socket_reused); + EXPECT_NE(NetLog::Source::kInvalidId, load_timing_info.socket_log_id); + + ExpectConnectTimingHasNoTimes(load_timing_info.connect_timing); + ExpectLoadTimingHasOnlyConnectionTimes(load_timing_info); +} + +// Make sure |handle| sets load times correctly when it has been assigned a +// fresh socket. Also runs TestLoadTimingInfoConnectedReused, since the owner +// of a connection where |is_reused| is false may consider the connection +// reused. +void TestLoadTimingInfoConnectedNotReused(const ClientSocketHandle& handle) { + EXPECT_FALSE(handle.is_reused()); + + LoadTimingInfo load_timing_info; + EXPECT_TRUE(handle.GetLoadTimingInfo(false, &load_timing_info)); + + EXPECT_FALSE(load_timing_info.socket_reused); + EXPECT_NE(NetLog::Source::kInvalidId, load_timing_info.socket_log_id); + + ExpectConnectTimingHasTimes(load_timing_info.connect_timing, + CONNECT_TIMING_HAS_DNS_TIMES); + ExpectLoadTimingHasOnlyConnectionTimes(load_timing_info); + + TestLoadTimingInfoConnectedReused(handle); +} + +void SetIPv4Address(IPEndPoint* address) { + IPAddressNumber number; + CHECK(ParseIPLiteralToNumber("1.1.1.1", &number)); + *address = IPEndPoint(number, 80); +} + +void SetIPv6Address(IPEndPoint* address) { + IPAddressNumber number; + CHECK(ParseIPLiteralToNumber("1:abcd::3:4:ff", &number)); + *address = IPEndPoint(number, 80); +} + +class MockClientSocket : public StreamSocket { + public: + MockClientSocket(const AddressList& addrlist, net::NetLog* net_log) + : connected_(false), + addrlist_(addrlist), + net_log_(BoundNetLog::Make(net_log, NetLog::SOURCE_SOCKET)) { + } + + // StreamSocket implementation. + virtual int Connect(const CompletionCallback& callback) OVERRIDE { + connected_ = true; + return OK; + } + virtual void Disconnect() OVERRIDE { + connected_ = false; + } + virtual bool IsConnected() const OVERRIDE { + return connected_; + } + virtual bool IsConnectedAndIdle() const OVERRIDE { + return connected_; + } + virtual int GetPeerAddress(IPEndPoint* address) const OVERRIDE { + return ERR_UNEXPECTED; + } + virtual int GetLocalAddress(IPEndPoint* address) const OVERRIDE { + if (!connected_) + return ERR_SOCKET_NOT_CONNECTED; + if (addrlist_.front().GetFamily() == ADDRESS_FAMILY_IPV4) + SetIPv4Address(address); + else + SetIPv6Address(address); + return OK; + } + virtual const BoundNetLog& NetLog() const OVERRIDE { + return net_log_; + } + + virtual void SetSubresourceSpeculation() OVERRIDE {} + virtual void SetOmniboxSpeculation() OVERRIDE {} + virtual bool WasEverUsed() const OVERRIDE { return false; } + virtual bool UsingTCPFastOpen() const OVERRIDE { return false; } + virtual bool WasNpnNegotiated() const OVERRIDE { + return false; + } + virtual NextProto GetNegotiatedProtocol() const OVERRIDE { + return kProtoUnknown; + } + virtual bool GetSSLInfo(SSLInfo* ssl_info) OVERRIDE { + return false; + } + + // Socket implementation. + virtual int Read(IOBuffer* buf, int buf_len, + const CompletionCallback& callback) OVERRIDE { + return ERR_FAILED; + } + virtual int Write(IOBuffer* buf, int buf_len, + const CompletionCallback& callback) OVERRIDE { + return ERR_FAILED; + } + virtual bool SetReceiveBufferSize(int32 size) OVERRIDE { return true; } + virtual bool SetSendBufferSize(int32 size) OVERRIDE { return true; } + + private: + bool connected_; + const AddressList addrlist_; + BoundNetLog net_log_; +}; + +class MockFailingClientSocket : public StreamSocket { + public: + MockFailingClientSocket(const AddressList& addrlist, net::NetLog* net_log) + : addrlist_(addrlist), + net_log_(BoundNetLog::Make(net_log, NetLog::SOURCE_SOCKET)) { + } + + // StreamSocket implementation. + virtual int Connect(const CompletionCallback& callback) OVERRIDE { + return ERR_CONNECTION_FAILED; + } + + virtual void Disconnect() OVERRIDE {} + + virtual bool IsConnected() const OVERRIDE { + return false; + } + virtual bool IsConnectedAndIdle() const OVERRIDE { + return false; + } + virtual int GetPeerAddress(IPEndPoint* address) const OVERRIDE { + return ERR_UNEXPECTED; + } + virtual int GetLocalAddress(IPEndPoint* address) const OVERRIDE { + return ERR_UNEXPECTED; + } + virtual const BoundNetLog& NetLog() const OVERRIDE { + return net_log_; + } + + virtual void SetSubresourceSpeculation() OVERRIDE {} + virtual void SetOmniboxSpeculation() OVERRIDE {} + virtual bool WasEverUsed() const OVERRIDE { return false; } + virtual bool UsingTCPFastOpen() const OVERRIDE { return false; } + virtual bool WasNpnNegotiated() const OVERRIDE { + return false; + } + virtual NextProto GetNegotiatedProtocol() const OVERRIDE { + return kProtoUnknown; + } + virtual bool GetSSLInfo(SSLInfo* ssl_info) OVERRIDE { + return false; + } + + // Socket implementation. + virtual int Read(IOBuffer* buf, int buf_len, + const CompletionCallback& callback) OVERRIDE { + return ERR_FAILED; + } + + virtual int Write(IOBuffer* buf, int buf_len, + const CompletionCallback& callback) OVERRIDE { + return ERR_FAILED; + } + virtual bool SetReceiveBufferSize(int32 size) OVERRIDE { return true; } + virtual bool SetSendBufferSize(int32 size) OVERRIDE { return true; } + + private: + const AddressList addrlist_; + BoundNetLog net_log_; +}; + +class MockPendingClientSocket : public StreamSocket { + public: + // |should_connect| indicates whether the socket should successfully complete + // or fail. + // |should_stall| indicates that this socket should never connect. + // |delay_ms| is the delay, in milliseconds, before simulating a connect. + MockPendingClientSocket( + const AddressList& addrlist, + bool should_connect, + bool should_stall, + base::TimeDelta delay, + net::NetLog* net_log) + : weak_factory_(this), + should_connect_(should_connect), + should_stall_(should_stall), + delay_(delay), + is_connected_(false), + addrlist_(addrlist), + net_log_(BoundNetLog::Make(net_log, NetLog::SOURCE_SOCKET)) { + } + + // StreamSocket implementation. + virtual int Connect(const CompletionCallback& callback) OVERRIDE { + base::MessageLoop::current()->PostDelayedTask( + FROM_HERE, + base::Bind(&MockPendingClientSocket::DoCallback, + weak_factory_.GetWeakPtr(), callback), + delay_); + return ERR_IO_PENDING; + } + + virtual void Disconnect() OVERRIDE {} + + virtual bool IsConnected() const OVERRIDE { + return is_connected_; + } + virtual bool IsConnectedAndIdle() const OVERRIDE { + return is_connected_; + } + virtual int GetPeerAddress(IPEndPoint* address) const OVERRIDE { + return ERR_UNEXPECTED; + } + virtual int GetLocalAddress(IPEndPoint* address) const OVERRIDE { + if (!is_connected_) + return ERR_SOCKET_NOT_CONNECTED; + if (addrlist_.front().GetFamily() == ADDRESS_FAMILY_IPV4) + SetIPv4Address(address); + else + SetIPv6Address(address); + return OK; + } + virtual const BoundNetLog& NetLog() const OVERRIDE { + return net_log_; + } + + virtual void SetSubresourceSpeculation() OVERRIDE {} + virtual void SetOmniboxSpeculation() OVERRIDE {} + virtual bool WasEverUsed() const OVERRIDE { return false; } + virtual bool UsingTCPFastOpen() const OVERRIDE { return false; } + virtual bool WasNpnNegotiated() const OVERRIDE { + return false; + } + virtual NextProto GetNegotiatedProtocol() const OVERRIDE { + return kProtoUnknown; + } + virtual bool GetSSLInfo(SSLInfo* ssl_info) OVERRIDE { + return false; + } + + // Socket implementation. + virtual int Read(IOBuffer* buf, int buf_len, + const CompletionCallback& callback) OVERRIDE { + return ERR_FAILED; + } + + virtual int Write(IOBuffer* buf, int buf_len, + const CompletionCallback& callback) OVERRIDE { + return ERR_FAILED; + } + virtual bool SetReceiveBufferSize(int32 size) OVERRIDE { return true; } + virtual bool SetSendBufferSize(int32 size) OVERRIDE { return true; } + + private: + void DoCallback(const CompletionCallback& callback) { + if (should_stall_) + return; + + if (should_connect_) { + is_connected_ = true; + callback.Run(OK); + } else { + is_connected_ = false; + callback.Run(ERR_CONNECTION_FAILED); + } + } + + base::WeakPtrFactory<MockPendingClientSocket> weak_factory_; + bool should_connect_; + bool should_stall_; + base::TimeDelta delay_; + bool is_connected_; + const AddressList addrlist_; + BoundNetLog net_log_; +}; + +class MockClientSocketFactory : public ClientSocketFactory { + public: + enum ClientSocketType { + MOCK_CLIENT_SOCKET, + MOCK_FAILING_CLIENT_SOCKET, + MOCK_PENDING_CLIENT_SOCKET, + MOCK_PENDING_FAILING_CLIENT_SOCKET, + // A delayed socket will pause before connecting through the message loop. + MOCK_DELAYED_CLIENT_SOCKET, + // A stalled socket that never connects at all. + MOCK_STALLED_CLIENT_SOCKET, + }; + + explicit MockClientSocketFactory(NetLog* net_log) + : net_log_(net_log), allocation_count_(0), + client_socket_type_(MOCK_CLIENT_SOCKET), client_socket_types_(NULL), + client_socket_index_(0), client_socket_index_max_(0), + delay_(base::TimeDelta::FromMilliseconds( + ClientSocketPool::kMaxConnectRetryIntervalMs)) {} + + virtual scoped_ptr<DatagramClientSocket> CreateDatagramClientSocket( + DatagramSocket::BindType bind_type, + const RandIntCallback& rand_int_cb, + NetLog* net_log, + const NetLog::Source& source) OVERRIDE { + NOTREACHED(); + return scoped_ptr<DatagramClientSocket>(); + } + + virtual scoped_ptr<StreamSocket> CreateTransportClientSocket( + const AddressList& addresses, + NetLog* /* net_log */, + const NetLog::Source& /* source */) OVERRIDE { + allocation_count_++; + + ClientSocketType type = client_socket_type_; + if (client_socket_types_ && + client_socket_index_ < client_socket_index_max_) { + type = client_socket_types_[client_socket_index_++]; + } + + switch (type) { + case MOCK_CLIENT_SOCKET: + return scoped_ptr<StreamSocket>( + new MockClientSocket(addresses, net_log_)); + case MOCK_FAILING_CLIENT_SOCKET: + return scoped_ptr<StreamSocket>( + new MockFailingClientSocket(addresses, net_log_)); + case MOCK_PENDING_CLIENT_SOCKET: + return scoped_ptr<StreamSocket>( + new MockPendingClientSocket( + addresses, true, false, base::TimeDelta(), net_log_)); + case MOCK_PENDING_FAILING_CLIENT_SOCKET: + return scoped_ptr<StreamSocket>( + new MockPendingClientSocket( + addresses, false, false, base::TimeDelta(), net_log_)); + case MOCK_DELAYED_CLIENT_SOCKET: + return scoped_ptr<StreamSocket>( + new MockPendingClientSocket( + addresses, true, false, delay_, net_log_)); + case MOCK_STALLED_CLIENT_SOCKET: + return scoped_ptr<StreamSocket>( + new MockPendingClientSocket( + addresses, true, true, base::TimeDelta(), net_log_)); + default: + NOTREACHED(); + return scoped_ptr<StreamSocket>( + new MockClientSocket(addresses, net_log_)); + } + } + + virtual scoped_ptr<SSLClientSocket> CreateSSLClientSocket( + scoped_ptr<ClientSocketHandle> transport_socket, + const HostPortPair& host_and_port, + const SSLConfig& ssl_config, + const SSLClientSocketContext& context) OVERRIDE { + NOTIMPLEMENTED(); + return scoped_ptr<SSLClientSocket>(); + } + + virtual void ClearSSLSessionCache() OVERRIDE { + NOTIMPLEMENTED(); + } + + int allocation_count() const { return allocation_count_; } + + // Set the default ClientSocketType. + void set_client_socket_type(ClientSocketType type) { + client_socket_type_ = type; + } + + // Set a list of ClientSocketTypes to be used. + void set_client_socket_types(ClientSocketType* type_list, int num_types) { + DCHECK_GT(num_types, 0); + client_socket_types_ = type_list; + client_socket_index_ = 0; + client_socket_index_max_ = num_types; + } + + void set_delay(base::TimeDelta delay) { delay_ = delay; } + + private: + NetLog* net_log_; + int allocation_count_; + ClientSocketType client_socket_type_; + ClientSocketType* client_socket_types_; + int client_socket_index_; + int client_socket_index_max_; + base::TimeDelta delay_; +}; + +class TransportClientSocketPoolTest : public testing::Test { + protected: + TransportClientSocketPoolTest() + : connect_backup_jobs_enabled_( + ClientSocketPoolBaseHelper::set_connect_backup_jobs_enabled(true)), + params_( + new TransportSocketParams(HostPortPair("www.google.com", 80), + kDefaultPriority, false, false, + OnHostResolutionCallback())), + low_params_( + new TransportSocketParams(HostPortPair("www.google.com", 80), + LOW, false, false, + OnHostResolutionCallback())), + histograms_(new ClientSocketPoolHistograms("TCPUnitTest")), + host_resolver_(new MockHostResolver), + client_socket_factory_(&net_log_), + pool_(kMaxSockets, + kMaxSocketsPerGroup, + histograms_.get(), + host_resolver_.get(), + &client_socket_factory_, + NULL) { + } + + virtual ~TransportClientSocketPoolTest() { + internal::ClientSocketPoolBaseHelper::set_connect_backup_jobs_enabled( + connect_backup_jobs_enabled_); + } + + int StartRequest(const std::string& group_name, RequestPriority priority) { + scoped_refptr<TransportSocketParams> params(new TransportSocketParams( + HostPortPair("www.google.com", 80), MEDIUM, false, false, + OnHostResolutionCallback())); + return test_base_.StartRequestUsingPool( + &pool_, group_name, priority, params); + } + + int GetOrderOfRequest(size_t index) { + return test_base_.GetOrderOfRequest(index); + } + + bool ReleaseOneConnection(ClientSocketPoolTest::KeepAlive keep_alive) { + return test_base_.ReleaseOneConnection(keep_alive); + } + + void ReleaseAllConnections(ClientSocketPoolTest::KeepAlive keep_alive) { + test_base_.ReleaseAllConnections(keep_alive); + } + + ScopedVector<TestSocketRequest>* requests() { return test_base_.requests(); } + size_t completion_count() const { return test_base_.completion_count(); } + + bool connect_backup_jobs_enabled_; + CapturingNetLog net_log_; + scoped_refptr<TransportSocketParams> params_; + scoped_refptr<TransportSocketParams> low_params_; + scoped_ptr<ClientSocketPoolHistograms> histograms_; + scoped_ptr<MockHostResolver> host_resolver_; + MockClientSocketFactory client_socket_factory_; + TransportClientSocketPool pool_; + ClientSocketPoolTest test_base_; +}; + +TEST(TransportConnectJobTest, MakeAddrListStartWithIPv4) { + IPAddressNumber ip_number; + ASSERT_TRUE(ParseIPLiteralToNumber("192.168.1.1", &ip_number)); + IPEndPoint addrlist_v4_1(ip_number, 80); + ASSERT_TRUE(ParseIPLiteralToNumber("192.168.1.2", &ip_number)); + IPEndPoint addrlist_v4_2(ip_number, 80); + ASSERT_TRUE(ParseIPLiteralToNumber("2001:4860:b006::64", &ip_number)); + IPEndPoint addrlist_v6_1(ip_number, 80); + ASSERT_TRUE(ParseIPLiteralToNumber("2001:4860:b006::66", &ip_number)); + IPEndPoint addrlist_v6_2(ip_number, 80); + + AddressList addrlist; + + // Test 1: IPv4 only. Expect no change. + addrlist.clear(); + addrlist.push_back(addrlist_v4_1); + addrlist.push_back(addrlist_v4_2); + TransportConnectJob::MakeAddressListStartWithIPv4(&addrlist); + ASSERT_EQ(2u, addrlist.size()); + EXPECT_EQ(ADDRESS_FAMILY_IPV4, addrlist[0].GetFamily()); + EXPECT_EQ(ADDRESS_FAMILY_IPV4, addrlist[1].GetFamily()); + + // Test 2: IPv6 only. Expect no change. + addrlist.clear(); + addrlist.push_back(addrlist_v6_1); + addrlist.push_back(addrlist_v6_2); + TransportConnectJob::MakeAddressListStartWithIPv4(&addrlist); + ASSERT_EQ(2u, addrlist.size()); + EXPECT_EQ(ADDRESS_FAMILY_IPV6, addrlist[0].GetFamily()); + EXPECT_EQ(ADDRESS_FAMILY_IPV6, addrlist[1].GetFamily()); + + // Test 3: IPv4 then IPv6. Expect no change. + addrlist.clear(); + addrlist.push_back(addrlist_v4_1); + addrlist.push_back(addrlist_v4_2); + addrlist.push_back(addrlist_v6_1); + addrlist.push_back(addrlist_v6_2); + TransportConnectJob::MakeAddressListStartWithIPv4(&addrlist); + ASSERT_EQ(4u, addrlist.size()); + EXPECT_EQ(ADDRESS_FAMILY_IPV4, addrlist[0].GetFamily()); + EXPECT_EQ(ADDRESS_FAMILY_IPV4, addrlist[1].GetFamily()); + EXPECT_EQ(ADDRESS_FAMILY_IPV6, addrlist[2].GetFamily()); + EXPECT_EQ(ADDRESS_FAMILY_IPV6, addrlist[3].GetFamily()); + + // Test 4: IPv6, IPv4, IPv6, IPv4. Expect first IPv6 moved to the end. + addrlist.clear(); + addrlist.push_back(addrlist_v6_1); + addrlist.push_back(addrlist_v4_1); + addrlist.push_back(addrlist_v6_2); + addrlist.push_back(addrlist_v4_2); + TransportConnectJob::MakeAddressListStartWithIPv4(&addrlist); + ASSERT_EQ(4u, addrlist.size()); + EXPECT_EQ(ADDRESS_FAMILY_IPV4, addrlist[0].GetFamily()); + EXPECT_EQ(ADDRESS_FAMILY_IPV6, addrlist[1].GetFamily()); + EXPECT_EQ(ADDRESS_FAMILY_IPV4, addrlist[2].GetFamily()); + EXPECT_EQ(ADDRESS_FAMILY_IPV6, addrlist[3].GetFamily()); + + // Test 5: IPv6, IPv6, IPv4, IPv4. Expect first two IPv6's moved to the end. + addrlist.clear(); + addrlist.push_back(addrlist_v6_1); + addrlist.push_back(addrlist_v6_2); + addrlist.push_back(addrlist_v4_1); + addrlist.push_back(addrlist_v4_2); + TransportConnectJob::MakeAddressListStartWithIPv4(&addrlist); + ASSERT_EQ(4u, addrlist.size()); + EXPECT_EQ(ADDRESS_FAMILY_IPV4, addrlist[0].GetFamily()); + EXPECT_EQ(ADDRESS_FAMILY_IPV4, addrlist[1].GetFamily()); + EXPECT_EQ(ADDRESS_FAMILY_IPV6, addrlist[2].GetFamily()); + EXPECT_EQ(ADDRESS_FAMILY_IPV6, addrlist[3].GetFamily()); +} + +TEST_F(TransportClientSocketPoolTest, Basic) { + TestCompletionCallback callback; + ClientSocketHandle handle; + int rv = handle.Init("a", low_params_, LOW, callback.callback(), &pool_, + BoundNetLog()); + EXPECT_EQ(ERR_IO_PENDING, rv); + EXPECT_FALSE(handle.is_initialized()); + EXPECT_FALSE(handle.socket()); + + EXPECT_EQ(OK, callback.WaitForResult()); + EXPECT_TRUE(handle.is_initialized()); + EXPECT_TRUE(handle.socket()); + TestLoadTimingInfoConnectedNotReused(handle); +} + +TEST_F(TransportClientSocketPoolTest, InitHostResolutionFailure) { + host_resolver_->rules()->AddSimulatedFailure("unresolvable.host.name"); + TestCompletionCallback callback; + ClientSocketHandle handle; + HostPortPair host_port_pair("unresolvable.host.name", 80); + scoped_refptr<TransportSocketParams> dest(new TransportSocketParams( + host_port_pair, kDefaultPriority, false, false, + OnHostResolutionCallback())); + EXPECT_EQ(ERR_IO_PENDING, + handle.Init("a", dest, kDefaultPriority, callback.callback(), + &pool_, BoundNetLog())); + EXPECT_EQ(ERR_NAME_NOT_RESOLVED, callback.WaitForResult()); +} + +TEST_F(TransportClientSocketPoolTest, InitConnectionFailure) { + client_socket_factory_.set_client_socket_type( + MockClientSocketFactory::MOCK_FAILING_CLIENT_SOCKET); + TestCompletionCallback callback; + ClientSocketHandle handle; + EXPECT_EQ(ERR_IO_PENDING, + handle.Init("a", params_, kDefaultPriority, callback.callback(), + &pool_, BoundNetLog())); + EXPECT_EQ(ERR_CONNECTION_FAILED, callback.WaitForResult()); + + // Make the host resolutions complete synchronously this time. + host_resolver_->set_synchronous_mode(true); + EXPECT_EQ(ERR_CONNECTION_FAILED, + handle.Init("a", params_, kDefaultPriority, callback.callback(), + &pool_, BoundNetLog())); +} + +TEST_F(TransportClientSocketPoolTest, PendingRequests) { + // First request finishes asynchronously. + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(OK, (*requests())[0]->WaitForResult()); + + // Make all subsequent host resolutions complete synchronously. + host_resolver_->set_synchronous_mode(true); + + // Rest of them finish synchronously, until we reach the per-group limit. + EXPECT_EQ(OK, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(OK, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(OK, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(OK, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(OK, StartRequest("a", kDefaultPriority)); + + // The rest are pending since we've used all active sockets. + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", HIGHEST)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", LOWEST)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", LOWEST)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", MEDIUM)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", LOW)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", HIGHEST)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", LOWEST)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", MEDIUM)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", MEDIUM)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", HIGHEST)); + + ReleaseAllConnections(ClientSocketPoolTest::KEEP_ALIVE); + + EXPECT_EQ(kMaxSocketsPerGroup, client_socket_factory_.allocation_count()); + + // One initial asynchronous request and then 10 pending requests. + EXPECT_EQ(11U, completion_count()); + + // First part of requests, all with the same priority, finishes in FIFO order. + EXPECT_EQ(1, GetOrderOfRequest(1)); + EXPECT_EQ(2, GetOrderOfRequest(2)); + EXPECT_EQ(3, GetOrderOfRequest(3)); + EXPECT_EQ(4, GetOrderOfRequest(4)); + EXPECT_EQ(5, GetOrderOfRequest(5)); + EXPECT_EQ(6, GetOrderOfRequest(6)); + + // Make sure that rest of the requests complete in the order of priority. + EXPECT_EQ(7, GetOrderOfRequest(7)); + EXPECT_EQ(14, GetOrderOfRequest(8)); + EXPECT_EQ(15, GetOrderOfRequest(9)); + EXPECT_EQ(10, GetOrderOfRequest(10)); + EXPECT_EQ(13, GetOrderOfRequest(11)); + EXPECT_EQ(8, GetOrderOfRequest(12)); + EXPECT_EQ(16, GetOrderOfRequest(13)); + EXPECT_EQ(11, GetOrderOfRequest(14)); + EXPECT_EQ(12, GetOrderOfRequest(15)); + EXPECT_EQ(9, GetOrderOfRequest(16)); + + // Make sure we test order of all requests made. + EXPECT_EQ(ClientSocketPoolTest::kIndexOutOfBounds, GetOrderOfRequest(17)); +} + +TEST_F(TransportClientSocketPoolTest, PendingRequests_NoKeepAlive) { + // First request finishes asynchronously. + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(OK, (*requests())[0]->WaitForResult()); + + // Make all subsequent host resolutions complete synchronously. + host_resolver_->set_synchronous_mode(true); + + // Rest of them finish synchronously, until we reach the per-group limit. + EXPECT_EQ(OK, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(OK, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(OK, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(OK, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(OK, StartRequest("a", kDefaultPriority)); + + // The rest are pending since we've used all active sockets. + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", kDefaultPriority)); + + ReleaseAllConnections(ClientSocketPoolTest::NO_KEEP_ALIVE); + + // The pending requests should finish successfully. + EXPECT_EQ(OK, (*requests())[6]->WaitForResult()); + EXPECT_EQ(OK, (*requests())[7]->WaitForResult()); + EXPECT_EQ(OK, (*requests())[8]->WaitForResult()); + EXPECT_EQ(OK, (*requests())[9]->WaitForResult()); + EXPECT_EQ(OK, (*requests())[10]->WaitForResult()); + + EXPECT_EQ(static_cast<int>(requests()->size()), + client_socket_factory_.allocation_count()); + + // First asynchronous request, and then last 5 pending requests. + EXPECT_EQ(6U, completion_count()); +} + +// This test will start up a RequestSocket() and then immediately Cancel() it. +// The pending host resolution will eventually complete, and destroy the +// ClientSocketPool which will crash if the group was not cleared properly. +TEST_F(TransportClientSocketPoolTest, CancelRequestClearGroup) { + TestCompletionCallback callback; + ClientSocketHandle handle; + EXPECT_EQ(ERR_IO_PENDING, + handle.Init("a", params_, kDefaultPriority, callback.callback(), + &pool_, BoundNetLog())); + handle.Reset(); +} + +TEST_F(TransportClientSocketPoolTest, TwoRequestsCancelOne) { + ClientSocketHandle handle; + TestCompletionCallback callback; + ClientSocketHandle handle2; + TestCompletionCallback callback2; + + EXPECT_EQ(ERR_IO_PENDING, + handle.Init("a", params_, kDefaultPriority, callback.callback(), + &pool_, BoundNetLog())); + EXPECT_EQ(ERR_IO_PENDING, + handle2.Init("a", params_, kDefaultPriority, callback2.callback(), + &pool_, BoundNetLog())); + + handle.Reset(); + + EXPECT_EQ(OK, callback2.WaitForResult()); + handle2.Reset(); +} + +TEST_F(TransportClientSocketPoolTest, ConnectCancelConnect) { + client_socket_factory_.set_client_socket_type( + MockClientSocketFactory::MOCK_PENDING_CLIENT_SOCKET); + ClientSocketHandle handle; + TestCompletionCallback callback; + EXPECT_EQ(ERR_IO_PENDING, + handle.Init("a", params_, kDefaultPriority, callback.callback(), + &pool_, BoundNetLog())); + + handle.Reset(); + + TestCompletionCallback callback2; + EXPECT_EQ(ERR_IO_PENDING, + handle.Init("a", params_, kDefaultPriority, callback2.callback(), + &pool_, BoundNetLog())); + + host_resolver_->set_synchronous_mode(true); + // At this point, handle has two ConnectingSockets out for it. Due to the + // setting the mock resolver into synchronous mode, the host resolution for + // both will return in the same loop of the MessageLoop. The client socket + // is a pending socket, so the Connect() will asynchronously complete on the + // next loop of the MessageLoop. That means that the first + // ConnectingSocket will enter OnIOComplete, and then the second one will. + // If the first one is not cancelled, it will advance the load state, and + // then the second one will crash. + + EXPECT_EQ(OK, callback2.WaitForResult()); + EXPECT_FALSE(callback.have_result()); + + handle.Reset(); +} + +TEST_F(TransportClientSocketPoolTest, CancelRequest) { + // First request finishes asynchronously. + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(OK, (*requests())[0]->WaitForResult()); + + // Make all subsequent host resolutions complete synchronously. + host_resolver_->set_synchronous_mode(true); + + EXPECT_EQ(OK, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(OK, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(OK, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(OK, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(OK, StartRequest("a", kDefaultPriority)); + + // Reached per-group limit, queue up requests. + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", LOWEST)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", HIGHEST)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", HIGHEST)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", MEDIUM)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", MEDIUM)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", LOW)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", HIGHEST)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", LOW)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", LOW)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", LOWEST)); + + // Cancel a request. + size_t index_to_cancel = kMaxSocketsPerGroup + 2; + EXPECT_FALSE((*requests())[index_to_cancel]->handle()->is_initialized()); + (*requests())[index_to_cancel]->handle()->Reset(); + + ReleaseAllConnections(ClientSocketPoolTest::KEEP_ALIVE); + + EXPECT_EQ(kMaxSocketsPerGroup, + client_socket_factory_.allocation_count()); + EXPECT_EQ(requests()->size() - kMaxSocketsPerGroup, completion_count()); + + EXPECT_EQ(1, GetOrderOfRequest(1)); + EXPECT_EQ(2, GetOrderOfRequest(2)); + EXPECT_EQ(3, GetOrderOfRequest(3)); + EXPECT_EQ(4, GetOrderOfRequest(4)); + EXPECT_EQ(5, GetOrderOfRequest(5)); + EXPECT_EQ(6, GetOrderOfRequest(6)); + EXPECT_EQ(14, GetOrderOfRequest(7)); + EXPECT_EQ(7, GetOrderOfRequest(8)); + EXPECT_EQ(ClientSocketPoolTest::kRequestNotFound, + GetOrderOfRequest(9)); // Canceled request. + EXPECT_EQ(9, GetOrderOfRequest(10)); + EXPECT_EQ(10, GetOrderOfRequest(11)); + EXPECT_EQ(11, GetOrderOfRequest(12)); + EXPECT_EQ(8, GetOrderOfRequest(13)); + EXPECT_EQ(12, GetOrderOfRequest(14)); + EXPECT_EQ(13, GetOrderOfRequest(15)); + EXPECT_EQ(15, GetOrderOfRequest(16)); + + // Make sure we test order of all requests made. + EXPECT_EQ(ClientSocketPoolTest::kIndexOutOfBounds, GetOrderOfRequest(17)); +} + +class RequestSocketCallback : public TestCompletionCallbackBase { + public: + RequestSocketCallback(ClientSocketHandle* handle, + TransportClientSocketPool* pool) + : handle_(handle), + pool_(pool), + within_callback_(false), + callback_(base::Bind(&RequestSocketCallback::OnComplete, + base::Unretained(this))) { + } + + virtual ~RequestSocketCallback() {} + + const CompletionCallback& callback() const { return callback_; } + + private: + void OnComplete(int result) { + SetResult(result); + ASSERT_EQ(OK, result); + + if (!within_callback_) { + // Don't allow reuse of the socket. Disconnect it and then release it and + // run through the MessageLoop once to get it completely released. + handle_->socket()->Disconnect(); + handle_->Reset(); + { + base::MessageLoop::ScopedNestableTaskAllower allow( + base::MessageLoop::current()); + base::MessageLoop::current()->RunUntilIdle(); + } + within_callback_ = true; + scoped_refptr<TransportSocketParams> dest(new TransportSocketParams( + HostPortPair("www.google.com", 80), LOWEST, false, false, + OnHostResolutionCallback())); + int rv = handle_->Init("a", dest, LOWEST, callback(), pool_, + BoundNetLog()); + EXPECT_EQ(OK, rv); + } + } + + ClientSocketHandle* const handle_; + TransportClientSocketPool* const pool_; + bool within_callback_; + CompletionCallback callback_; + + DISALLOW_COPY_AND_ASSIGN(RequestSocketCallback); +}; + +TEST_F(TransportClientSocketPoolTest, RequestTwice) { + ClientSocketHandle handle; + RequestSocketCallback callback(&handle, &pool_); + scoped_refptr<TransportSocketParams> dest(new TransportSocketParams( + HostPortPair("www.google.com", 80), LOWEST, false, false, + OnHostResolutionCallback())); + int rv = handle.Init("a", dest, LOWEST, callback.callback(), &pool_, + BoundNetLog()); + ASSERT_EQ(ERR_IO_PENDING, rv); + + // The callback is going to request "www.google.com". We want it to complete + // synchronously this time. + host_resolver_->set_synchronous_mode(true); + + EXPECT_EQ(OK, callback.WaitForResult()); + + handle.Reset(); +} + +// Make sure that pending requests get serviced after active requests get +// cancelled. +TEST_F(TransportClientSocketPoolTest, CancelActiveRequestWithPendingRequests) { + client_socket_factory_.set_client_socket_type( + MockClientSocketFactory::MOCK_PENDING_CLIENT_SOCKET); + + // Queue up all the requests + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", kDefaultPriority)); + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", kDefaultPriority)); + + // Now, kMaxSocketsPerGroup requests should be active. Let's cancel them. + ASSERT_LE(kMaxSocketsPerGroup, static_cast<int>(requests()->size())); + for (int i = 0; i < kMaxSocketsPerGroup; i++) + (*requests())[i]->handle()->Reset(); + + // Let's wait for the rest to complete now. + for (size_t i = kMaxSocketsPerGroup; i < requests()->size(); ++i) { + EXPECT_EQ(OK, (*requests())[i]->WaitForResult()); + (*requests())[i]->handle()->Reset(); + } + + EXPECT_EQ(requests()->size() - kMaxSocketsPerGroup, completion_count()); +} + +// Make sure that pending requests get serviced after active requests fail. +TEST_F(TransportClientSocketPoolTest, FailingActiveRequestWithPendingRequests) { + client_socket_factory_.set_client_socket_type( + MockClientSocketFactory::MOCK_PENDING_FAILING_CLIENT_SOCKET); + + const int kNumRequests = 2 * kMaxSocketsPerGroup + 1; + ASSERT_LE(kNumRequests, kMaxSockets); // Otherwise the test will hang. + + // Queue up all the requests + for (int i = 0; i < kNumRequests; i++) + EXPECT_EQ(ERR_IO_PENDING, StartRequest("a", kDefaultPriority)); + + for (int i = 0; i < kNumRequests; i++) + EXPECT_EQ(ERR_CONNECTION_FAILED, (*requests())[i]->WaitForResult()); +} + +TEST_F(TransportClientSocketPoolTest, IdleSocketLoadTiming) { + TestCompletionCallback callback; + ClientSocketHandle handle; + int rv = handle.Init("a", low_params_, LOW, callback.callback(), &pool_, + BoundNetLog()); + EXPECT_EQ(ERR_IO_PENDING, rv); + EXPECT_FALSE(handle.is_initialized()); + EXPECT_FALSE(handle.socket()); + + EXPECT_EQ(OK, callback.WaitForResult()); + EXPECT_TRUE(handle.is_initialized()); + EXPECT_TRUE(handle.socket()); + TestLoadTimingInfoConnectedNotReused(handle); + + handle.Reset(); + // Need to run all pending to release the socket back to the pool. + base::MessageLoop::current()->RunUntilIdle(); + + // Now we should have 1 idle socket. + EXPECT_EQ(1, pool_.IdleSocketCount()); + + rv = handle.Init("a", low_params_, LOW, callback.callback(), &pool_, + BoundNetLog()); + EXPECT_EQ(OK, rv); + EXPECT_EQ(0, pool_.IdleSocketCount()); + TestLoadTimingInfoConnectedReused(handle); +} + +TEST_F(TransportClientSocketPoolTest, ResetIdleSocketsOnIPAddressChange) { + TestCompletionCallback callback; + ClientSocketHandle handle; + int rv = handle.Init("a", low_params_, LOW, callback.callback(), &pool_, + BoundNetLog()); + EXPECT_EQ(ERR_IO_PENDING, rv); + EXPECT_FALSE(handle.is_initialized()); + EXPECT_FALSE(handle.socket()); + + EXPECT_EQ(OK, callback.WaitForResult()); + EXPECT_TRUE(handle.is_initialized()); + EXPECT_TRUE(handle.socket()); + + handle.Reset(); + + // Need to run all pending to release the socket back to the pool. + base::MessageLoop::current()->RunUntilIdle(); + + // Now we should have 1 idle socket. + EXPECT_EQ(1, pool_.IdleSocketCount()); + + // After an IP address change, we should have 0 idle sockets. + NetworkChangeNotifier::NotifyObserversOfIPAddressChangeForTests(); + base::MessageLoop::current()->RunUntilIdle(); // Notification happens async. + + EXPECT_EQ(0, pool_.IdleSocketCount()); +} + +TEST_F(TransportClientSocketPoolTest, BackupSocketConnect) { + // Case 1 tests the first socket stalling, and the backup connecting. + MockClientSocketFactory::ClientSocketType case1_types[] = { + // The first socket will not connect. + MockClientSocketFactory::MOCK_STALLED_CLIENT_SOCKET, + // The second socket will connect more quickly. + MockClientSocketFactory::MOCK_CLIENT_SOCKET + }; + + // Case 2 tests the first socket being slow, so that we start the + // second connect, but the second connect stalls, and we still + // complete the first. + MockClientSocketFactory::ClientSocketType case2_types[] = { + // The first socket will connect, although delayed. + MockClientSocketFactory::MOCK_DELAYED_CLIENT_SOCKET, + // The second socket will not connect. + MockClientSocketFactory::MOCK_STALLED_CLIENT_SOCKET + }; + + MockClientSocketFactory::ClientSocketType* cases[2] = { + case1_types, + case2_types + }; + + for (size_t index = 0; index < arraysize(cases); ++index) { + client_socket_factory_.set_client_socket_types(cases[index], 2); + + EXPECT_EQ(0, pool_.IdleSocketCount()); + + TestCompletionCallback callback; + ClientSocketHandle handle; + int rv = handle.Init("b", low_params_, LOW, callback.callback(), &pool_, + BoundNetLog()); + EXPECT_EQ(ERR_IO_PENDING, rv); + EXPECT_FALSE(handle.is_initialized()); + EXPECT_FALSE(handle.socket()); + + // Create the first socket, set the timer. + base::MessageLoop::current()->RunUntilIdle(); + + // Wait for the backup socket timer to fire. + base::PlatformThread::Sleep(base::TimeDelta::FromMilliseconds( + ClientSocketPool::kMaxConnectRetryIntervalMs + 50)); + + // Let the appropriate socket connect. + base::MessageLoop::current()->RunUntilIdle(); + + EXPECT_EQ(OK, callback.WaitForResult()); + EXPECT_TRUE(handle.is_initialized()); + EXPECT_TRUE(handle.socket()); + + // One socket is stalled, the other is active. + EXPECT_EQ(0, pool_.IdleSocketCount()); + handle.Reset(); + + // Close all pending connect jobs and existing sockets. + pool_.FlushWithError(ERR_NETWORK_CHANGED); + } +} + +// Test the case where a socket took long enough to start the creation +// of the backup socket, but then we cancelled the request after that. +TEST_F(TransportClientSocketPoolTest, BackupSocketCancel) { + client_socket_factory_.set_client_socket_type( + MockClientSocketFactory::MOCK_STALLED_CLIENT_SOCKET); + + enum { CANCEL_BEFORE_WAIT, CANCEL_AFTER_WAIT }; + + for (int index = CANCEL_BEFORE_WAIT; index < CANCEL_AFTER_WAIT; ++index) { + EXPECT_EQ(0, pool_.IdleSocketCount()); + + TestCompletionCallback callback; + ClientSocketHandle handle; + int rv = handle.Init("c", low_params_, LOW, callback.callback(), &pool_, + BoundNetLog()); + EXPECT_EQ(ERR_IO_PENDING, rv); + EXPECT_FALSE(handle.is_initialized()); + EXPECT_FALSE(handle.socket()); + + // Create the first socket, set the timer. + base::MessageLoop::current()->RunUntilIdle(); + + if (index == CANCEL_AFTER_WAIT) { + // Wait for the backup socket timer to fire. + base::PlatformThread::Sleep(base::TimeDelta::FromMilliseconds( + ClientSocketPool::kMaxConnectRetryIntervalMs)); + } + + // Let the appropriate socket connect. + base::MessageLoop::current()->RunUntilIdle(); + + handle.Reset(); + + EXPECT_FALSE(callback.have_result()); + EXPECT_FALSE(handle.is_initialized()); + EXPECT_FALSE(handle.socket()); + + // One socket is stalled, the other is active. + EXPECT_EQ(0, pool_.IdleSocketCount()); + } +} + +// Test the case where a socket took long enough to start the creation +// of the backup socket and never completes, and then the backup +// connection fails. +TEST_F(TransportClientSocketPoolTest, BackupSocketFailAfterStall) { + MockClientSocketFactory::ClientSocketType case_types[] = { + // The first socket will not connect. + MockClientSocketFactory::MOCK_STALLED_CLIENT_SOCKET, + // The second socket will fail immediately. + MockClientSocketFactory::MOCK_FAILING_CLIENT_SOCKET + }; + + client_socket_factory_.set_client_socket_types(case_types, 2); + + EXPECT_EQ(0, pool_.IdleSocketCount()); + + TestCompletionCallback callback; + ClientSocketHandle handle; + int rv = handle.Init("b", low_params_, LOW, callback.callback(), &pool_, + BoundNetLog()); + EXPECT_EQ(ERR_IO_PENDING, rv); + EXPECT_FALSE(handle.is_initialized()); + EXPECT_FALSE(handle.socket()); + + // Create the first socket, set the timer. + base::MessageLoop::current()->RunUntilIdle(); + + // Wait for the backup socket timer to fire. + base::PlatformThread::Sleep(base::TimeDelta::FromMilliseconds( + ClientSocketPool::kMaxConnectRetryIntervalMs)); + + // Let the second connect be synchronous. Otherwise, the emulated + // host resolution takes an extra trip through the message loop. + host_resolver_->set_synchronous_mode(true); + + // Let the appropriate socket connect. + base::MessageLoop::current()->RunUntilIdle(); + + EXPECT_EQ(ERR_CONNECTION_FAILED, callback.WaitForResult()); + EXPECT_FALSE(handle.is_initialized()); + EXPECT_FALSE(handle.socket()); + EXPECT_EQ(0, pool_.IdleSocketCount()); + handle.Reset(); + + // Reset for the next case. + host_resolver_->set_synchronous_mode(false); +} + +// Test the case where a socket took long enough to start the creation +// of the backup socket and eventually completes, but the backup socket +// fails. +TEST_F(TransportClientSocketPoolTest, BackupSocketFailAfterDelay) { + MockClientSocketFactory::ClientSocketType case_types[] = { + // The first socket will connect, although delayed. + MockClientSocketFactory::MOCK_DELAYED_CLIENT_SOCKET, + // The second socket will not connect. + MockClientSocketFactory::MOCK_FAILING_CLIENT_SOCKET + }; + + client_socket_factory_.set_client_socket_types(case_types, 2); + client_socket_factory_.set_delay(base::TimeDelta::FromSeconds(5)); + + EXPECT_EQ(0, pool_.IdleSocketCount()); + + TestCompletionCallback callback; + ClientSocketHandle handle; + int rv = handle.Init("b", low_params_, LOW, callback.callback(), &pool_, + BoundNetLog()); + EXPECT_EQ(ERR_IO_PENDING, rv); + EXPECT_FALSE(handle.is_initialized()); + EXPECT_FALSE(handle.socket()); + + // Create the first socket, set the timer. + base::MessageLoop::current()->RunUntilIdle(); + + // Wait for the backup socket timer to fire. + base::PlatformThread::Sleep(base::TimeDelta::FromMilliseconds( + ClientSocketPool::kMaxConnectRetryIntervalMs)); + + // Let the second connect be synchronous. Otherwise, the emulated + // host resolution takes an extra trip through the message loop. + host_resolver_->set_synchronous_mode(true); + + // Let the appropriate socket connect. + base::MessageLoop::current()->RunUntilIdle(); + + EXPECT_EQ(ERR_CONNECTION_FAILED, callback.WaitForResult()); + EXPECT_FALSE(handle.is_initialized()); + EXPECT_FALSE(handle.socket()); + handle.Reset(); + + // Reset for the next case. + host_resolver_->set_synchronous_mode(false); +} + +// Test the case of the IPv6 address stalling, and falling back to the IPv4 +// socket which finishes first. +TEST_F(TransportClientSocketPoolTest, IPv6FallbackSocketIPv4FinishesFirst) { + // Create a pool without backup jobs. + ClientSocketPoolBaseHelper::set_connect_backup_jobs_enabled(false); + TransportClientSocketPool pool(kMaxSockets, + kMaxSocketsPerGroup, + histograms_.get(), + host_resolver_.get(), + &client_socket_factory_, + NULL); + + MockClientSocketFactory::ClientSocketType case_types[] = { + // This is the IPv6 socket. + MockClientSocketFactory::MOCK_STALLED_CLIENT_SOCKET, + // This is the IPv4 socket. + MockClientSocketFactory::MOCK_PENDING_CLIENT_SOCKET + }; + + client_socket_factory_.set_client_socket_types(case_types, 2); + + // Resolve an AddressList with a IPv6 address first and then a IPv4 address. + host_resolver_->rules() + ->AddIPLiteralRule("*", "2:abcd::3:4:ff,2.2.2.2", std::string()); + + TestCompletionCallback callback; + ClientSocketHandle handle; + int rv = handle.Init("a", low_params_, LOW, callback.callback(), &pool, + BoundNetLog()); + EXPECT_EQ(ERR_IO_PENDING, rv); + EXPECT_FALSE(handle.is_initialized()); + EXPECT_FALSE(handle.socket()); + + EXPECT_EQ(OK, callback.WaitForResult()); + EXPECT_TRUE(handle.is_initialized()); + EXPECT_TRUE(handle.socket()); + IPEndPoint endpoint; + handle.socket()->GetLocalAddress(&endpoint); + EXPECT_EQ(kIPv4AddressSize, endpoint.address().size()); + EXPECT_EQ(2, client_socket_factory_.allocation_count()); +} + +// Test the case of the IPv6 address being slow, thus falling back to trying to +// connect to the IPv4 address, but having the connect to the IPv6 address +// finish first. +TEST_F(TransportClientSocketPoolTest, IPv6FallbackSocketIPv6FinishesFirst) { + // Create a pool without backup jobs. + ClientSocketPoolBaseHelper::set_connect_backup_jobs_enabled(false); + TransportClientSocketPool pool(kMaxSockets, + kMaxSocketsPerGroup, + histograms_.get(), + host_resolver_.get(), + &client_socket_factory_, + NULL); + + MockClientSocketFactory::ClientSocketType case_types[] = { + // This is the IPv6 socket. + MockClientSocketFactory::MOCK_DELAYED_CLIENT_SOCKET, + // This is the IPv4 socket. + MockClientSocketFactory::MOCK_STALLED_CLIENT_SOCKET + }; + + client_socket_factory_.set_client_socket_types(case_types, 2); + client_socket_factory_.set_delay(base::TimeDelta::FromMilliseconds( + TransportConnectJob::kIPv6FallbackTimerInMs + 50)); + + // Resolve an AddressList with a IPv6 address first and then a IPv4 address. + host_resolver_->rules() + ->AddIPLiteralRule("*", "2:abcd::3:4:ff,2.2.2.2", std::string()); + + TestCompletionCallback callback; + ClientSocketHandle handle; + int rv = handle.Init("a", low_params_, LOW, callback.callback(), &pool, + BoundNetLog()); + EXPECT_EQ(ERR_IO_PENDING, rv); + EXPECT_FALSE(handle.is_initialized()); + EXPECT_FALSE(handle.socket()); + + EXPECT_EQ(OK, callback.WaitForResult()); + EXPECT_TRUE(handle.is_initialized()); + EXPECT_TRUE(handle.socket()); + IPEndPoint endpoint; + handle.socket()->GetLocalAddress(&endpoint); + EXPECT_EQ(kIPv6AddressSize, endpoint.address().size()); + EXPECT_EQ(2, client_socket_factory_.allocation_count()); +} + +TEST_F(TransportClientSocketPoolTest, IPv6NoIPv4AddressesToFallbackTo) { + // Create a pool without backup jobs. + ClientSocketPoolBaseHelper::set_connect_backup_jobs_enabled(false); + TransportClientSocketPool pool(kMaxSockets, + kMaxSocketsPerGroup, + histograms_.get(), + host_resolver_.get(), + &client_socket_factory_, + NULL); + + client_socket_factory_.set_client_socket_type( + MockClientSocketFactory::MOCK_DELAYED_CLIENT_SOCKET); + + // Resolve an AddressList with only IPv6 addresses. + host_resolver_->rules() + ->AddIPLiteralRule("*", "2:abcd::3:4:ff,3:abcd::3:4:ff", std::string()); + + TestCompletionCallback callback; + ClientSocketHandle handle; + int rv = handle.Init("a", low_params_, LOW, callback.callback(), &pool, + BoundNetLog()); + EXPECT_EQ(ERR_IO_PENDING, rv); + EXPECT_FALSE(handle.is_initialized()); + EXPECT_FALSE(handle.socket()); + + EXPECT_EQ(OK, callback.WaitForResult()); + EXPECT_TRUE(handle.is_initialized()); + EXPECT_TRUE(handle.socket()); + IPEndPoint endpoint; + handle.socket()->GetLocalAddress(&endpoint); + EXPECT_EQ(kIPv6AddressSize, endpoint.address().size()); + EXPECT_EQ(1, client_socket_factory_.allocation_count()); +} + +TEST_F(TransportClientSocketPoolTest, IPv4HasNoFallback) { + // Create a pool without backup jobs. + ClientSocketPoolBaseHelper::set_connect_backup_jobs_enabled(false); + TransportClientSocketPool pool(kMaxSockets, + kMaxSocketsPerGroup, + histograms_.get(), + host_resolver_.get(), + &client_socket_factory_, + NULL); + + client_socket_factory_.set_client_socket_type( + MockClientSocketFactory::MOCK_DELAYED_CLIENT_SOCKET); + + // Resolve an AddressList with only IPv4 addresses. + host_resolver_->rules()->AddIPLiteralRule("*", "1.1.1.1", std::string()); + + TestCompletionCallback callback; + ClientSocketHandle handle; + int rv = handle.Init("a", low_params_, LOW, callback.callback(), &pool, + BoundNetLog()); + EXPECT_EQ(ERR_IO_PENDING, rv); + EXPECT_FALSE(handle.is_initialized()); + EXPECT_FALSE(handle.socket()); + + EXPECT_EQ(OK, callback.WaitForResult()); + EXPECT_TRUE(handle.is_initialized()); + EXPECT_TRUE(handle.socket()); + IPEndPoint endpoint; + handle.socket()->GetLocalAddress(&endpoint); + EXPECT_EQ(kIPv4AddressSize, endpoint.address().size()); + EXPECT_EQ(1, client_socket_factory_.allocation_count()); +} + +} // namespace + +} // namespace net |