|  | // 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/macros.h" | 
|  | #include "base/message_loop/message_loop.h" | 
|  | #include "base/run_loop.h" | 
|  | #include "base/threading/platform_thread.h" | 
|  | #include "net/base/ip_address.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/test_completion_callback.h" | 
|  | #include "net/dns/mock_host_resolver.h" | 
|  | #include "net/log/net_log_with_source.h" | 
|  | #include "net/log/test_net_log.h" | 
|  | #include "net/socket/client_socket_handle.h" | 
|  | #include "net/socket/socket_test_util.h" | 
|  | #include "net/socket/stream_socket.h" | 
|  | #include "net/socket/transport_client_socket_pool_test_util.h" | 
|  | #include "net/test/gtest_util.h" | 
|  | #include "testing/gmock/include/gmock/gmock.h" | 
|  | #include "testing/gtest/include/gtest/gtest.h" | 
|  |  | 
|  | using net::test::IsError; | 
|  | using net::test::IsOk; | 
|  |  | 
|  | namespace net { | 
|  |  | 
|  | using internal::ClientSocketPoolBaseHelper; | 
|  |  | 
|  | namespace { | 
|  |  | 
|  | const int kMaxSockets = 32; | 
|  | const int kMaxSocketsPerGroup = 6; | 
|  | const RequestPriority kDefaultPriority = LOW; | 
|  |  | 
|  | 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), | 
|  | false, | 
|  | OnHostResolutionCallback(), | 
|  | TransportSocketParams::COMBINE_CONNECT_AND_WRITE_DEFAULT)), | 
|  | host_resolver_(new MockHostResolver), | 
|  | client_socket_factory_(&net_log_), | 
|  | pool_(kMaxSockets, | 
|  | kMaxSocketsPerGroup, | 
|  | host_resolver_.get(), | 
|  | &client_socket_factory_, | 
|  | NULL, | 
|  | NULL) {} | 
|  |  | 
|  | ~TransportClientSocketPoolTest() override { | 
|  | internal::ClientSocketPoolBaseHelper::set_connect_backup_jobs_enabled( | 
|  | connect_backup_jobs_enabled_); | 
|  | } | 
|  |  | 
|  | scoped_refptr<TransportSocketParams> CreateParamsForTCPFastOpen() { | 
|  | return new TransportSocketParams( | 
|  | HostPortPair("www.google.com", 80), false, OnHostResolutionCallback(), | 
|  | TransportSocketParams::COMBINE_CONNECT_AND_WRITE_DESIRED); | 
|  | } | 
|  |  | 
|  | int StartRequest(const std::string& group_name, RequestPriority priority) { | 
|  | scoped_refptr<TransportSocketParams> params(new TransportSocketParams( | 
|  | HostPortPair("www.google.com", 80), false, OnHostResolutionCallback(), | 
|  | TransportSocketParams::COMBINE_CONNECT_AND_WRITE_DEFAULT)); | 
|  | return test_base_.StartRequestUsingPool( | 
|  | &pool_, group_name, priority, ClientSocketPool::RespectLimits::ENABLED, | 
|  | 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); | 
|  | } | 
|  |  | 
|  | std::vector<std::unique_ptr<TestSocketRequest>>* requests() { | 
|  | return test_base_.requests(); | 
|  | } | 
|  | size_t completion_count() const { return test_base_.completion_count(); } | 
|  |  | 
|  | bool connect_backup_jobs_enabled_; | 
|  | TestNetLog net_log_; | 
|  | scoped_refptr<TransportSocketParams> params_; | 
|  | std::unique_ptr<MockHostResolver> host_resolver_; | 
|  | MockTransportClientSocketFactory client_socket_factory_; | 
|  | TransportClientSocketPool pool_; | 
|  | ClientSocketPoolTest test_base_; | 
|  |  | 
|  | private: | 
|  | DISALLOW_COPY_AND_ASSIGN(TransportClientSocketPoolTest); | 
|  | }; | 
|  |  | 
|  | TEST(TransportConnectJobTest, MakeAddrListStartWithIPv4) { | 
|  | IPEndPoint addrlist_v4_1(IPAddress(192, 168, 1, 1), 80); | 
|  | IPEndPoint addrlist_v4_2(IPAddress(192, 168, 1, 2), 80); | 
|  | IPAddress ip_address; | 
|  | ASSERT_TRUE(ip_address.AssignFromIPLiteral("2001:4860:b006::64")); | 
|  | IPEndPoint addrlist_v6_1(ip_address, 80); | 
|  | ASSERT_TRUE(ip_address.AssignFromIPLiteral("2001:4860:b006::66")); | 
|  | IPEndPoint addrlist_v6_2(ip_address, 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", params_, LOW, ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool_, NetLogWithSource()); | 
|  | EXPECT_THAT(rv, IsError(ERR_IO_PENDING)); | 
|  | EXPECT_FALSE(handle.is_initialized()); | 
|  | EXPECT_FALSE(handle.socket()); | 
|  |  | 
|  | EXPECT_THAT(callback.WaitForResult(), IsOk()); | 
|  | EXPECT_TRUE(handle.is_initialized()); | 
|  | EXPECT_TRUE(handle.socket()); | 
|  | TestLoadTimingInfoConnectedNotReused(handle); | 
|  | EXPECT_EQ(0u, handle.connection_attempts().size()); | 
|  | } | 
|  |  | 
|  | // Make sure that TransportConnectJob passes on its priority to its | 
|  | // HostResolver request on Init. | 
|  | TEST_F(TransportClientSocketPoolTest, SetResolvePriorityOnInit) { | 
|  | for (int i = MINIMUM_PRIORITY; i <= MAXIMUM_PRIORITY; ++i) { | 
|  | RequestPriority priority = static_cast<RequestPriority>(i); | 
|  | TestCompletionCallback callback; | 
|  | ClientSocketHandle handle; | 
|  | EXPECT_EQ(ERR_IO_PENDING, | 
|  | handle.Init("a", params_, priority, | 
|  | ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool_, NetLogWithSource())); | 
|  | EXPECT_EQ(priority, host_resolver_->last_request_priority()); | 
|  | } | 
|  | } | 
|  |  | 
|  | 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, false, OnHostResolutionCallback(), | 
|  | TransportSocketParams::COMBINE_CONNECT_AND_WRITE_DEFAULT)); | 
|  | EXPECT_EQ(ERR_IO_PENDING, | 
|  | handle.Init("a", dest, kDefaultPriority, | 
|  | ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool_, NetLogWithSource())); | 
|  | EXPECT_THAT(callback.WaitForResult(), IsError(ERR_NAME_NOT_RESOLVED)); | 
|  | ASSERT_EQ(1u, handle.connection_attempts().size()); | 
|  | EXPECT_TRUE(handle.connection_attempts()[0].endpoint.address().empty()); | 
|  | EXPECT_THAT(handle.connection_attempts()[0].result, | 
|  | IsError(ERR_NAME_NOT_RESOLVED)); | 
|  | } | 
|  |  | 
|  | TEST_F(TransportClientSocketPoolTest, InitConnectionFailure) { | 
|  | client_socket_factory_.set_default_client_socket_type( | 
|  | MockTransportClientSocketFactory::MOCK_FAILING_CLIENT_SOCKET); | 
|  | TestCompletionCallback callback; | 
|  | ClientSocketHandle handle; | 
|  | EXPECT_EQ(ERR_IO_PENDING, | 
|  | handle.Init("a", params_, kDefaultPriority, | 
|  | ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool_, NetLogWithSource())); | 
|  | EXPECT_THAT(callback.WaitForResult(), IsError(ERR_CONNECTION_FAILED)); | 
|  | ASSERT_EQ(1u, handle.connection_attempts().size()); | 
|  | EXPECT_EQ("127.0.0.1:80", | 
|  | handle.connection_attempts()[0].endpoint.ToString()); | 
|  | EXPECT_THAT(handle.connection_attempts()[0].result, | 
|  | IsError(ERR_CONNECTION_FAILED)); | 
|  |  | 
|  | // Make the host resolutions complete synchronously this time. | 
|  | host_resolver_->set_synchronous_mode(true); | 
|  | EXPECT_EQ(ERR_CONNECTION_FAILED, | 
|  | handle.Init("a", params_, kDefaultPriority, | 
|  | ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool_, NetLogWithSource())); | 
|  | ASSERT_EQ(1u, handle.connection_attempts().size()); | 
|  | EXPECT_EQ("127.0.0.1:80", | 
|  | handle.connection_attempts()[0].endpoint.ToString()); | 
|  | EXPECT_THAT(handle.connection_attempts()[0].result, | 
|  | IsError(ERR_CONNECTION_FAILED)); | 
|  | } | 
|  |  | 
|  | TEST_F(TransportClientSocketPoolTest, PendingRequests) { | 
|  | // First request finishes asynchronously. | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT((*requests())[0]->WaitForResult(), IsOk()); | 
|  |  | 
|  | // 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_THAT(StartRequest("a", kDefaultPriority), IsOk()); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsOk()); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsOk()); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsOk()); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsOk()); | 
|  |  | 
|  | // The rest are pending since we've used all active sockets. | 
|  | EXPECT_THAT(StartRequest("a", HIGHEST), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", LOWEST), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", LOWEST), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", MEDIUM), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", LOW), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", HIGHEST), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", LOWEST), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", MEDIUM), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", MEDIUM), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", HIGHEST), IsError(ERR_IO_PENDING)); | 
|  |  | 
|  | 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_THAT(StartRequest("a", kDefaultPriority), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT((*requests())[0]->WaitForResult(), IsOk()); | 
|  |  | 
|  | // 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_THAT(StartRequest("a", kDefaultPriority), IsOk()); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsOk()); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsOk()); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsOk()); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsOk()); | 
|  |  | 
|  | // The rest are pending since we've used all active sockets. | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsError(ERR_IO_PENDING)); | 
|  |  | 
|  | ReleaseAllConnections(ClientSocketPoolTest::NO_KEEP_ALIVE); | 
|  |  | 
|  | // The pending requests should finish successfully. | 
|  | EXPECT_THAT((*requests())[6]->WaitForResult(), IsOk()); | 
|  | EXPECT_THAT((*requests())[7]->WaitForResult(), IsOk()); | 
|  | EXPECT_THAT((*requests())[8]->WaitForResult(), IsOk()); | 
|  | EXPECT_THAT((*requests())[9]->WaitForResult(), IsOk()); | 
|  | EXPECT_THAT((*requests())[10]->WaitForResult(), IsOk()); | 
|  |  | 
|  | 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, | 
|  | ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool_, NetLogWithSource())); | 
|  | handle.Reset(); | 
|  | } | 
|  |  | 
|  | TEST_F(TransportClientSocketPoolTest, TwoRequestsCancelOne) { | 
|  | ClientSocketHandle handle; | 
|  | TestCompletionCallback callback; | 
|  | ClientSocketHandle handle2; | 
|  | TestCompletionCallback callback2; | 
|  |  | 
|  | EXPECT_EQ(ERR_IO_PENDING, | 
|  | handle.Init("a", params_, kDefaultPriority, | 
|  | ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool_, NetLogWithSource())); | 
|  | EXPECT_EQ(ERR_IO_PENDING, | 
|  | handle2.Init("a", params_, kDefaultPriority, | 
|  | ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback2.callback(), &pool_, NetLogWithSource())); | 
|  |  | 
|  | handle.Reset(); | 
|  |  | 
|  | EXPECT_THAT(callback2.WaitForResult(), IsOk()); | 
|  | handle2.Reset(); | 
|  | } | 
|  |  | 
|  | TEST_F(TransportClientSocketPoolTest, ConnectCancelConnect) { | 
|  | client_socket_factory_.set_default_client_socket_type( | 
|  | MockTransportClientSocketFactory::MOCK_PENDING_CLIENT_SOCKET); | 
|  | ClientSocketHandle handle; | 
|  | TestCompletionCallback callback; | 
|  | EXPECT_EQ(ERR_IO_PENDING, | 
|  | handle.Init("a", params_, kDefaultPriority, | 
|  | ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool_, NetLogWithSource())); | 
|  |  | 
|  | handle.Reset(); | 
|  |  | 
|  | TestCompletionCallback callback2; | 
|  | EXPECT_EQ(ERR_IO_PENDING, | 
|  | handle.Init("a", params_, kDefaultPriority, | 
|  | ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback2.callback(), &pool_, NetLogWithSource())); | 
|  |  | 
|  | 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_THAT(callback2.WaitForResult(), IsOk()); | 
|  | EXPECT_FALSE(callback.have_result()); | 
|  |  | 
|  | handle.Reset(); | 
|  | } | 
|  |  | 
|  | TEST_F(TransportClientSocketPoolTest, CancelRequest) { | 
|  | // First request finishes asynchronously. | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT((*requests())[0]->WaitForResult(), IsOk()); | 
|  |  | 
|  | // Make all subsequent host resolutions complete synchronously. | 
|  | host_resolver_->set_synchronous_mode(true); | 
|  |  | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsOk()); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsOk()); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsOk()); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsOk()); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsOk()); | 
|  |  | 
|  | // Reached per-group limit, queue up requests. | 
|  | EXPECT_THAT(StartRequest("a", LOWEST), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", HIGHEST), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", HIGHEST), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", MEDIUM), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", MEDIUM), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", LOW), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", HIGHEST), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", LOW), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", LOW), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", LOWEST), IsError(ERR_IO_PENDING)); | 
|  |  | 
|  | // 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))) { | 
|  | } | 
|  |  | 
|  | ~RequestSocketCallback() override {} | 
|  |  | 
|  | const CompletionCallback& callback() const { return callback_; } | 
|  |  | 
|  | private: | 
|  | void OnComplete(int result) { | 
|  | SetResult(result); | 
|  | ASSERT_THAT(result, IsOk()); | 
|  |  | 
|  | 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::RunLoop().RunUntilIdle(); | 
|  | } | 
|  | within_callback_ = true; | 
|  | scoped_refptr<TransportSocketParams> dest(new TransportSocketParams( | 
|  | HostPortPair("www.google.com", 80), false, OnHostResolutionCallback(), | 
|  | TransportSocketParams::COMBINE_CONNECT_AND_WRITE_DEFAULT)); | 
|  | int rv = handle_->Init("a", dest, LOWEST, | 
|  | ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback(), pool_, NetLogWithSource()); | 
|  | EXPECT_THAT(rv, IsOk()); | 
|  | } | 
|  | } | 
|  |  | 
|  | 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), false, OnHostResolutionCallback(), | 
|  | TransportSocketParams::COMBINE_CONNECT_AND_WRITE_DEFAULT)); | 
|  | int rv = | 
|  | handle.Init("a", dest, LOWEST, ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool_, NetLogWithSource()); | 
|  | ASSERT_THAT(rv, IsError(ERR_IO_PENDING)); | 
|  |  | 
|  | // The callback is going to request "www.google.com". We want it to complete | 
|  | // synchronously this time. | 
|  | host_resolver_->set_synchronous_mode(true); | 
|  |  | 
|  | EXPECT_THAT(callback.WaitForResult(), IsOk()); | 
|  |  | 
|  | handle.Reset(); | 
|  | } | 
|  |  | 
|  | // Make sure that pending requests get serviced after active requests get | 
|  | // cancelled. | 
|  | TEST_F(TransportClientSocketPoolTest, CancelActiveRequestWithPendingRequests) { | 
|  | client_socket_factory_.set_default_client_socket_type( | 
|  | MockTransportClientSocketFactory::MOCK_PENDING_CLIENT_SOCKET); | 
|  |  | 
|  | // Queue up all the requests | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsError(ERR_IO_PENDING)); | 
|  | EXPECT_THAT(StartRequest("a", kDefaultPriority), IsError(ERR_IO_PENDING)); | 
|  |  | 
|  | // 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_THAT((*requests())[i]->WaitForResult(), IsOk()); | 
|  | (*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_default_client_socket_type( | 
|  | MockTransportClientSocketFactory::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_THAT(StartRequest("a", kDefaultPriority), IsError(ERR_IO_PENDING)); | 
|  |  | 
|  | for (int i = 0; i < kNumRequests; i++) | 
|  | EXPECT_THAT((*requests())[i]->WaitForResult(), | 
|  | IsError(ERR_CONNECTION_FAILED)); | 
|  | } | 
|  |  | 
|  | TEST_F(TransportClientSocketPoolTest, IdleSocketLoadTiming) { | 
|  | TestCompletionCallback callback; | 
|  | ClientSocketHandle handle; | 
|  | int rv = | 
|  | handle.Init("a", params_, LOW, ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool_, NetLogWithSource()); | 
|  | EXPECT_THAT(rv, IsError(ERR_IO_PENDING)); | 
|  | EXPECT_FALSE(handle.is_initialized()); | 
|  | EXPECT_FALSE(handle.socket()); | 
|  |  | 
|  | EXPECT_THAT(callback.WaitForResult(), IsOk()); | 
|  | 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::RunLoop().RunUntilIdle(); | 
|  |  | 
|  | // Now we should have 1 idle socket. | 
|  | EXPECT_EQ(1, pool_.IdleSocketCount()); | 
|  |  | 
|  | rv = handle.Init("a", params_, LOW, ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool_, NetLogWithSource()); | 
|  | EXPECT_THAT(rv, IsOk()); | 
|  | EXPECT_EQ(0, pool_.IdleSocketCount()); | 
|  | TestLoadTimingInfoConnectedReused(handle); | 
|  | } | 
|  |  | 
|  | TEST_F(TransportClientSocketPoolTest, ResetIdleSocketsOnIPAddressChange) { | 
|  | TestCompletionCallback callback; | 
|  | ClientSocketHandle handle; | 
|  | int rv = | 
|  | handle.Init("a", params_, LOW, ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool_, NetLogWithSource()); | 
|  | EXPECT_THAT(rv, IsError(ERR_IO_PENDING)); | 
|  | EXPECT_FALSE(handle.is_initialized()); | 
|  | EXPECT_FALSE(handle.socket()); | 
|  |  | 
|  | EXPECT_THAT(callback.WaitForResult(), IsOk()); | 
|  | 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::RunLoop().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::RunLoop().RunUntilIdle();  // Notification happens async. | 
|  |  | 
|  | EXPECT_EQ(0, pool_.IdleSocketCount()); | 
|  | } | 
|  |  | 
|  | TEST_F(TransportClientSocketPoolTest, BackupSocketConnect) { | 
|  | // Case 1 tests the first socket stalling, and the backup connecting. | 
|  | MockTransportClientSocketFactory::ClientSocketType case1_types[] = { | 
|  | // The first socket will not connect. | 
|  | MockTransportClientSocketFactory::MOCK_STALLED_CLIENT_SOCKET, | 
|  | // The second socket will connect more quickly. | 
|  | MockTransportClientSocketFactory::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. | 
|  | MockTransportClientSocketFactory::ClientSocketType case2_types[] = { | 
|  | // The first socket will connect, although delayed. | 
|  | MockTransportClientSocketFactory::MOCK_DELAYED_CLIENT_SOCKET, | 
|  | // The second socket will not connect. | 
|  | MockTransportClientSocketFactory::MOCK_STALLED_CLIENT_SOCKET | 
|  | }; | 
|  |  | 
|  | MockTransportClientSocketFactory::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", params_, LOW, ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool_, NetLogWithSource()); | 
|  | EXPECT_THAT(rv, IsError(ERR_IO_PENDING)); | 
|  | EXPECT_FALSE(handle.is_initialized()); | 
|  | EXPECT_FALSE(handle.socket()); | 
|  |  | 
|  | // Create the first socket, set the timer. | 
|  | base::RunLoop().RunUntilIdle(); | 
|  |  | 
|  | // Wait for the backup socket timer to fire. | 
|  | base::PlatformThread::Sleep(base::TimeDelta::FromMilliseconds( | 
|  | ClientSocketPool::kMaxConnectRetryIntervalMs + 50)); | 
|  |  | 
|  | // Let the appropriate socket connect. | 
|  | base::RunLoop().RunUntilIdle(); | 
|  |  | 
|  | EXPECT_THAT(callback.WaitForResult(), IsOk()); | 
|  | 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_default_client_socket_type( | 
|  | MockTransportClientSocketFactory::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", params_, LOW, ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool_, NetLogWithSource()); | 
|  | EXPECT_THAT(rv, IsError(ERR_IO_PENDING)); | 
|  | EXPECT_FALSE(handle.is_initialized()); | 
|  | EXPECT_FALSE(handle.socket()); | 
|  |  | 
|  | // Create the first socket, set the timer. | 
|  | base::RunLoop().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::RunLoop().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) { | 
|  | MockTransportClientSocketFactory::ClientSocketType case_types[] = { | 
|  | // The first socket will not connect. | 
|  | MockTransportClientSocketFactory::MOCK_STALLED_CLIENT_SOCKET, | 
|  | // The second socket will fail immediately. | 
|  | MockTransportClientSocketFactory::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", params_, LOW, ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool_, NetLogWithSource()); | 
|  | EXPECT_THAT(rv, IsError(ERR_IO_PENDING)); | 
|  | EXPECT_FALSE(handle.is_initialized()); | 
|  | EXPECT_FALSE(handle.socket()); | 
|  |  | 
|  | // Create the first socket, set the timer. | 
|  | base::RunLoop().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::RunLoop().RunUntilIdle(); | 
|  |  | 
|  | EXPECT_THAT(callback.WaitForResult(), IsError(ERR_CONNECTION_FAILED)); | 
|  | EXPECT_FALSE(handle.is_initialized()); | 
|  | EXPECT_FALSE(handle.socket()); | 
|  | ASSERT_EQ(1u, handle.connection_attempts().size()); | 
|  | EXPECT_THAT(handle.connection_attempts()[0].result, | 
|  | IsError(ERR_CONNECTION_FAILED)); | 
|  | 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) { | 
|  | MockTransportClientSocketFactory::ClientSocketType case_types[] = { | 
|  | // The first socket will connect, although delayed. | 
|  | MockTransportClientSocketFactory::MOCK_DELAYED_CLIENT_SOCKET, | 
|  | // The second socket will not connect. | 
|  | MockTransportClientSocketFactory::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", params_, LOW, ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool_, NetLogWithSource()); | 
|  | EXPECT_THAT(rv, IsError(ERR_IO_PENDING)); | 
|  | EXPECT_FALSE(handle.is_initialized()); | 
|  | EXPECT_FALSE(handle.socket()); | 
|  |  | 
|  | // Create the first socket, set the timer. | 
|  | base::RunLoop().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::RunLoop().RunUntilIdle(); | 
|  |  | 
|  | EXPECT_THAT(callback.WaitForResult(), IsError(ERR_CONNECTION_FAILED)); | 
|  | EXPECT_FALSE(handle.is_initialized()); | 
|  | EXPECT_FALSE(handle.socket()); | 
|  | ASSERT_EQ(1u, handle.connection_attempts().size()); | 
|  | EXPECT_THAT(handle.connection_attempts()[0].result, | 
|  | IsError(ERR_CONNECTION_FAILED)); | 
|  | 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, | 
|  | host_resolver_.get(), &client_socket_factory_, | 
|  | NULL, NULL); | 
|  |  | 
|  | MockTransportClientSocketFactory::ClientSocketType case_types[] = { | 
|  | // This is the IPv6 socket. It stalls, but presents one failed connection | 
|  | // attempt on GetConnectionAttempts. | 
|  | MockTransportClientSocketFactory::MOCK_STALLED_FAILING_CLIENT_SOCKET, | 
|  | // This is the IPv4 socket. | 
|  | MockTransportClientSocketFactory::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", params_, LOW, ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool, NetLogWithSource()); | 
|  | EXPECT_THAT(rv, IsError(ERR_IO_PENDING)); | 
|  | EXPECT_FALSE(handle.is_initialized()); | 
|  | EXPECT_FALSE(handle.socket()); | 
|  |  | 
|  | EXPECT_THAT(callback.WaitForResult(), IsOk()); | 
|  | EXPECT_TRUE(handle.is_initialized()); | 
|  | EXPECT_TRUE(handle.socket()); | 
|  | IPEndPoint endpoint; | 
|  | handle.socket()->GetLocalAddress(&endpoint); | 
|  | EXPECT_TRUE(endpoint.address().IsIPv4()); | 
|  |  | 
|  | // Check that the failed connection attempt on the main socket is collected. | 
|  | ConnectionAttempts attempts; | 
|  | handle.socket()->GetConnectionAttempts(&attempts); | 
|  | ASSERT_EQ(1u, attempts.size()); | 
|  | EXPECT_THAT(attempts[0].result, IsError(ERR_CONNECTION_FAILED)); | 
|  | EXPECT_TRUE(attempts[0].endpoint.address().IsIPv6()); | 
|  |  | 
|  | 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, | 
|  | host_resolver_.get(), &client_socket_factory_, | 
|  | NULL, NULL); | 
|  |  | 
|  | MockTransportClientSocketFactory::ClientSocketType case_types[] = { | 
|  | // This is the IPv6 socket. | 
|  | MockTransportClientSocketFactory::MOCK_DELAYED_CLIENT_SOCKET, | 
|  | // This is the IPv4 socket. It stalls, but presents one failed connection | 
|  | // attempt on GetConnectionATtempts. | 
|  | MockTransportClientSocketFactory::MOCK_STALLED_FAILING_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", params_, LOW, ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool, NetLogWithSource()); | 
|  | EXPECT_THAT(rv, IsError(ERR_IO_PENDING)); | 
|  | EXPECT_FALSE(handle.is_initialized()); | 
|  | EXPECT_FALSE(handle.socket()); | 
|  |  | 
|  | EXPECT_THAT(callback.WaitForResult(), IsOk()); | 
|  | EXPECT_TRUE(handle.is_initialized()); | 
|  | EXPECT_TRUE(handle.socket()); | 
|  | IPEndPoint endpoint; | 
|  | handle.socket()->GetLocalAddress(&endpoint); | 
|  | EXPECT_TRUE(endpoint.address().IsIPv6()); | 
|  |  | 
|  | // Check that the failed connection attempt on the fallback socket is | 
|  | // collected. | 
|  | ConnectionAttempts attempts; | 
|  | handle.socket()->GetConnectionAttempts(&attempts); | 
|  | ASSERT_EQ(1u, attempts.size()); | 
|  | EXPECT_THAT(attempts[0].result, IsError(ERR_CONNECTION_FAILED)); | 
|  | EXPECT_TRUE(attempts[0].endpoint.address().IsIPv4()); | 
|  |  | 
|  | 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, | 
|  | host_resolver_.get(), &client_socket_factory_, | 
|  | NULL, NULL); | 
|  |  | 
|  | client_socket_factory_.set_default_client_socket_type( | 
|  | MockTransportClientSocketFactory::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", params_, LOW, ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool, NetLogWithSource()); | 
|  | EXPECT_THAT(rv, IsError(ERR_IO_PENDING)); | 
|  | EXPECT_FALSE(handle.is_initialized()); | 
|  | EXPECT_FALSE(handle.socket()); | 
|  |  | 
|  | EXPECT_THAT(callback.WaitForResult(), IsOk()); | 
|  | EXPECT_TRUE(handle.is_initialized()); | 
|  | EXPECT_TRUE(handle.socket()); | 
|  | IPEndPoint endpoint; | 
|  | handle.socket()->GetLocalAddress(&endpoint); | 
|  | EXPECT_TRUE(endpoint.address().IsIPv6()); | 
|  | EXPECT_EQ(0u, handle.connection_attempts().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, | 
|  | host_resolver_.get(), &client_socket_factory_, | 
|  | NULL, NULL); | 
|  |  | 
|  | client_socket_factory_.set_default_client_socket_type( | 
|  | MockTransportClientSocketFactory::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", params_, LOW, ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool, NetLogWithSource()); | 
|  | EXPECT_THAT(rv, IsError(ERR_IO_PENDING)); | 
|  | EXPECT_FALSE(handle.is_initialized()); | 
|  | EXPECT_FALSE(handle.socket()); | 
|  |  | 
|  | EXPECT_THAT(callback.WaitForResult(), IsOk()); | 
|  | EXPECT_TRUE(handle.is_initialized()); | 
|  | EXPECT_TRUE(handle.socket()); | 
|  | IPEndPoint endpoint; | 
|  | handle.socket()->GetLocalAddress(&endpoint); | 
|  | EXPECT_TRUE(endpoint.address().IsIPv4()); | 
|  | EXPECT_EQ(0u, handle.connection_attempts().size()); | 
|  | EXPECT_EQ(1, client_socket_factory_.allocation_count()); | 
|  | } | 
|  |  | 
|  | // Test that if TCP FastOpen is enabled, it is set on the socket | 
|  | // when we have only an IPv4 address. | 
|  | TEST_F(TransportClientSocketPoolTest, TCPFastOpenOnIPv4WithNoFallback) { | 
|  | SequencedSocketData socket_data(nullptr, 0, nullptr, 0); | 
|  | MockClientSocketFactory factory; | 
|  | factory.AddSocketDataProvider(&socket_data); | 
|  | // Create a pool without backup jobs. | 
|  | ClientSocketPoolBaseHelper::set_connect_backup_jobs_enabled(false); | 
|  | TransportClientSocketPool pool(kMaxSockets, kMaxSocketsPerGroup, | 
|  | host_resolver_.get(), &factory, NULL, NULL); | 
|  | // Resolve an AddressList with only IPv4 addresses. | 
|  | host_resolver_->rules()->AddIPLiteralRule("*", "1.1.1.1", std::string()); | 
|  |  | 
|  | TestCompletionCallback callback; | 
|  | ClientSocketHandle handle; | 
|  | // Enable TCP FastOpen in TransportSocketParams. | 
|  | scoped_refptr<TransportSocketParams> params = CreateParamsForTCPFastOpen(); | 
|  | handle.Init("a", params, LOW, ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool, NetLogWithSource()); | 
|  | EXPECT_THAT(callback.WaitForResult(), IsOk()); | 
|  | EXPECT_TRUE(socket_data.IsUsingTCPFastOpen()); | 
|  | } | 
|  |  | 
|  | // Test that if TCP FastOpen is enabled, it is set on the socket | 
|  | // when we have only IPv6 addresses. | 
|  | TEST_F(TransportClientSocketPoolTest, TCPFastOpenOnIPv6WithNoFallback) { | 
|  | SequencedSocketData socket_data(nullptr, 0, nullptr, 0); | 
|  | MockClientSocketFactory factory; | 
|  | factory.AddSocketDataProvider(&socket_data); | 
|  | // Create a pool without backup jobs. | 
|  | ClientSocketPoolBaseHelper::set_connect_backup_jobs_enabled(false); | 
|  | TransportClientSocketPool pool(kMaxSockets, kMaxSocketsPerGroup, | 
|  | host_resolver_.get(), &factory, NULL, NULL); | 
|  | client_socket_factory_.set_default_client_socket_type( | 
|  | MockTransportClientSocketFactory::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; | 
|  | // Enable TCP FastOpen in TransportSocketParams. | 
|  | scoped_refptr<TransportSocketParams> params = CreateParamsForTCPFastOpen(); | 
|  | handle.Init("a", params, LOW, ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool, NetLogWithSource()); | 
|  | EXPECT_THAT(callback.WaitForResult(), IsOk()); | 
|  | EXPECT_TRUE(socket_data.IsUsingTCPFastOpen()); | 
|  | } | 
|  |  | 
|  | // Test that if TCP FastOpen is enabled, it does not do anything when there | 
|  | // is a IPv6 address with fallback to an IPv4 address. This test tests the case | 
|  | // when the IPv6 connect fails and the IPv4 one succeeds. | 
|  | TEST_F(TransportClientSocketPoolTest, | 
|  | NoTCPFastOpenOnIPv6FailureWithIPv4Fallback) { | 
|  | SequencedSocketData socket_data_1(nullptr, 0, nullptr, 0); | 
|  | socket_data_1.set_connect_data(MockConnect(SYNCHRONOUS, ERR_IO_PENDING)); | 
|  | SequencedSocketData socket_data_2(nullptr, 0, nullptr, 0); | 
|  | MockClientSocketFactory factory; | 
|  | factory.AddSocketDataProvider(&socket_data_1); | 
|  | factory.AddSocketDataProvider(&socket_data_2); | 
|  | // Create a pool without backup jobs. | 
|  | ClientSocketPoolBaseHelper::set_connect_backup_jobs_enabled(false); | 
|  | TransportClientSocketPool pool(kMaxSockets, kMaxSocketsPerGroup, | 
|  | host_resolver_.get(), &factory, NULL, NULL); | 
|  |  | 
|  | // 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; | 
|  | // Enable TCP FastOpen in TransportSocketParams. | 
|  | scoped_refptr<TransportSocketParams> params = CreateParamsForTCPFastOpen(); | 
|  | handle.Init("a", params, LOW, ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool, NetLogWithSource()); | 
|  | EXPECT_THAT(callback.WaitForResult(), IsOk()); | 
|  | // Verify that the socket used is connected to the fallback IPv4 address. | 
|  | IPEndPoint endpoint; | 
|  | handle.socket()->GetPeerAddress(&endpoint); | 
|  | EXPECT_TRUE(endpoint.address().IsIPv4()); | 
|  | // Verify that TCP FastOpen was not turned on for the socket. | 
|  | EXPECT_FALSE(socket_data_1.IsUsingTCPFastOpen()); | 
|  | } | 
|  |  | 
|  | // Test that if TCP FastOpen is enabled, it does not do anything when there | 
|  | // is a IPv6 address with fallback to an IPv4 address. This test tests the case | 
|  | // when the IPv6 connect succeeds. | 
|  | TEST_F(TransportClientSocketPoolTest, | 
|  | NoTCPFastOpenOnIPv6SuccessWithIPv4Fallback) { | 
|  | SequencedSocketData socket_data(nullptr, 0, nullptr, 0); | 
|  | MockClientSocketFactory factory; | 
|  | factory.AddSocketDataProvider(&socket_data); | 
|  | // Create a pool without backup jobs. | 
|  | ClientSocketPoolBaseHelper::set_connect_backup_jobs_enabled(false); | 
|  | TransportClientSocketPool pool(kMaxSockets, kMaxSocketsPerGroup, | 
|  | host_resolver_.get(), &factory, NULL, NULL); | 
|  |  | 
|  | // 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; | 
|  | // Enable TCP FastOpen in TransportSocketParams. | 
|  | scoped_refptr<TransportSocketParams> params = CreateParamsForTCPFastOpen(); | 
|  | handle.Init("a", params, LOW, ClientSocketPool::RespectLimits::ENABLED, | 
|  | callback.callback(), &pool, NetLogWithSource()); | 
|  | EXPECT_THAT(callback.WaitForResult(), IsOk()); | 
|  | IPEndPoint endpoint; | 
|  | handle.socket()->GetPeerAddress(&endpoint); | 
|  | // Verify that the socket used is connected to the IPv6 address. | 
|  | EXPECT_TRUE(endpoint.address().IsIPv6()); | 
|  | // Verify that TCP FastOpen was not turned on for the socket. | 
|  | EXPECT_FALSE(socket_data.IsUsingTCPFastOpen()); | 
|  | } | 
|  |  | 
|  | }  // namespace | 
|  |  | 
|  | }  // namespace net |