Update To 11.40.268.0
[platform/framework/web/crosswalk.git] / src / third_party / libjingle / source / talk / p2p / base / turnport_unittest.cc
index 12a19aa..95615ff 100644 (file)
 #include <dirent.h>
 #endif
 
-#include "talk/base/asynctcpsocket.h"
-#include "talk/base/buffer.h"
-#include "talk/base/dscp.h"
-#include "talk/base/firewallsocketserver.h"
-#include "talk/base/logging.h"
-#include "talk/base/gunit.h"
-#include "talk/base/helpers.h"
-#include "talk/base/physicalsocketserver.h"
-#include "talk/base/scoped_ptr.h"
-#include "talk/base/socketaddress.h"
-#include "talk/base/thread.h"
-#include "talk/base/virtualsocketserver.h"
-#include "talk/p2p/base/basicpacketsocketfactory.h"
-#include "talk/p2p/base/constants.h"
-#include "talk/p2p/base/tcpport.h"
-#include "talk/p2p/base/testturnserver.h"
-#include "talk/p2p/base/turnport.h"
-#include "talk/p2p/base/udpport.h"
-
-using talk_base::SocketAddress;
+#include "webrtc/p2p/base/basicpacketsocketfactory.h"
+#include "webrtc/p2p/base/constants.h"
+#include "webrtc/p2p/base/tcpport.h"
+#include "webrtc/p2p/base/testturnserver.h"
+#include "webrtc/p2p/base/turnport.h"
+#include "webrtc/p2p/base/udpport.h"
+#include "webrtc/base/asynctcpsocket.h"
+#include "webrtc/base/buffer.h"
+#include "webrtc/base/dscp.h"
+#include "webrtc/base/firewallsocketserver.h"
+#include "webrtc/base/gunit.h"
+#include "webrtc/base/helpers.h"
+#include "webrtc/base/logging.h"
+#include "webrtc/base/physicalsocketserver.h"
+#include "webrtc/base/scoped_ptr.h"
+#include "webrtc/base/socketaddress.h"
+#include "webrtc/base/ssladapter.h"
+#include "webrtc/base/thread.h"
+#include "webrtc/base/virtualsocketserver.h"
+
+using rtc::SocketAddress;
 using cricket::Connection;
 using cricket::Port;
 using cricket::PortInterface;
@@ -63,6 +64,8 @@ static const SocketAddress kTurnUdpIntAddr("99.99.99.3",
 static const SocketAddress kTurnTcpIntAddr("99.99.99.4",
                                            cricket::TURN_SERVER_PORT);
 static const SocketAddress kTurnUdpExtAddr("99.99.99.5", 0);
+static const SocketAddress kTurnAlternateUdpIntAddr(
+    "99.99.99.6", cricket::TURN_SERVER_PORT);
 static const SocketAddress kTurnUdpIPv6IntAddr(
     "2400:4030:1:2c00:be30:abcd:efab:cdef", cricket::TURN_SERVER_PORT);
 static const SocketAddress kTurnUdpIPv6ExtAddr(
@@ -102,15 +105,15 @@ static int GetFDCount() {
 
 class TurnPortTest : public testing::Test,
                      public sigslot::has_slots<>,
-                     public talk_base::MessageHandler {
+                     public rtc::MessageHandler {
  public:
   TurnPortTest()
-      : main_(talk_base::Thread::Current()),
-        pss_(new talk_base::PhysicalSocketServer),
-        ss_(new talk_base::VirtualSocketServer(pss_.get())),
+      : main_(rtc::Thread::Current()),
+        pss_(new rtc::PhysicalSocketServer),
+        ss_(new rtc::VirtualSocketServer(pss_.get())),
         ss_scope_(ss_.get()),
-        network_("unittest", "unittest", talk_base::IPAddress(INADDR_ANY), 32),
-        socket_factory_(talk_base::Thread::Current()),
+        network_("unittest", "unittest", rtc::IPAddress(INADDR_ANY), 32),
+        socket_factory_(rtc::Thread::Current()),
         turn_server_(main_, kTurnUdpIntAddr, kTurnUdpExtAddr),
         turn_ready_(false),
         turn_error_(false),
@@ -118,10 +121,10 @@ class TurnPortTest : public testing::Test,
         turn_create_permission_success_(false),
         udp_ready_(false),
         test_finish_(false) {
-    network_.AddIP(talk_base::IPAddress(INADDR_ANY));
+    network_.AddIP(rtc::IPAddress(INADDR_ANY));
   }
 
-  virtual void OnMessage(talk_base::Message* msg) {
+  virtual void OnMessage(rtc::Message* msg) {
     ASSERT(msg->message_id == MSG_TESTFINISH);
     if (msg->message_id == MSG_TESTFINISH)
       test_finish_ = true;
@@ -147,25 +150,25 @@ class TurnPortTest : public testing::Test,
     }
   }
   void OnTurnReadPacket(Connection* conn, const char* data, size_t size,
-                        const talk_base::PacketTime& packet_time) {
-    turn_packets_.push_back(talk_base::Buffer(data, size));
+                        const rtc::PacketTime& packet_time) {
+    turn_packets_.push_back(rtc::Buffer(data, size));
   }
   void OnUdpPortComplete(Port* port) {
     udp_ready_ = true;
   }
   void OnUdpReadPacket(Connection* conn, const char* data, size_t size,
-                       const talk_base::PacketTime& packet_time) {
-    udp_packets_.push_back(talk_base::Buffer(data, size));
+                       const rtc::PacketTime& packet_time) {
+    udp_packets_.push_back(rtc::Buffer(data, size));
   }
-  void OnSocketReadPacket(talk_base::AsyncPacketSocket* socket,
+  void OnSocketReadPacket(rtc::AsyncPacketSocket* socket,
                           const char* data, size_t size,
-                          const talk_base::SocketAddress& remote_addr,
-                          const talk_base::PacketTime& packet_time) {
+                          const rtc::SocketAddress& remote_addr,
+                          const rtc::PacketTime& packet_time) {
     turn_port_->HandleIncomingPacket(socket, data, size, remote_addr,
                                      packet_time);
   }
-  talk_base::AsyncSocket* CreateServerSocket(const SocketAddress addr) {
-    talk_base::AsyncSocket* socket = ss_->CreateAsyncSocket(SOCK_STREAM);
+  rtc::AsyncSocket* CreateServerSocket(const SocketAddress addr) {
+    rtc::AsyncSocket* socket = ss_->CreateAsyncSocket(SOCK_STREAM);
     EXPECT_GE(socket->Bind(addr), 0);
     EXPECT_GE(socket->Listen(5), 0);
     return socket;
@@ -176,7 +179,7 @@ class TurnPortTest : public testing::Test,
                       const cricket::ProtocolAddress& server_address) {
     CreateTurnPort(kLocalAddr1, username, password, server_address);
   }
-  void CreateTurnPort(const talk_base::SocketAddress& local_address,
+  void CreateTurnPort(const rtc::SocketAddress& local_address,
                       const std::string& username,
                       const std::string& password,
                       const cricket::ProtocolAddress& server_address) {
@@ -184,7 +187,7 @@ class TurnPortTest : public testing::Test,
     turn_port_.reset(TurnPort::Create(main_, &socket_factory_, &network_,
                                  local_address.ipaddr(), 0, 0,
                                  kIceUfrag1, kIcePwd1,
-                                 server_address, credentials));
+                                 server_address, credentials, 0));
     // Set ICE protocol type to ICEPROTO_RFC5245, as port by default will be
     // in Hybrid mode. Protocol type is necessary to send correct type STUN ping
     // messages.
@@ -199,15 +202,18 @@ class TurnPortTest : public testing::Test,
                             const cricket::ProtocolAddress& server_address) {
     ASSERT(server_address.proto == cricket::PROTO_UDP);
 
-    socket_.reset(socket_factory_.CreateUdpSocket(
-        talk_base::SocketAddress(kLocalAddr1.ipaddr(), 0), 0, 0));
-    ASSERT_TRUE(socket_ != NULL);
-    socket_->SignalReadPacket.connect(this, &TurnPortTest::OnSocketReadPacket);
+    if (!socket_) {
+      socket_.reset(socket_factory_.CreateUdpSocket(
+          rtc::SocketAddress(kLocalAddr1.ipaddr(), 0), 0, 0));
+      ASSERT_TRUE(socket_ != NULL);
+      socket_->SignalReadPacket.connect(
+          this, &TurnPortTest::OnSocketReadPacket);
+    }
 
     cricket::RelayCredentials credentials(username, password);
     turn_port_.reset(cricket::TurnPort::Create(
         main_, &socket_factory_, &network_, socket_.get(),
-        kIceUfrag1, kIcePwd1, server_address, credentials));
+        kIceUfrag1, kIcePwd1, server_address, credentials, 0));
     // Set ICE protocol type to ICEPROTO_RFC5245, as port by default will be
     // in Hybrid mode. Protocol type is necessary to send correct type STUN ping
     // messages.
@@ -301,9 +307,9 @@ class TurnPortTest : public testing::Test,
     // Send some data.
     size_t num_packets = 256;
     for (size_t i = 0; i < num_packets; ++i) {
-      char buf[256];
+      unsigned char buf[256] = { 0 };
       for (size_t j = 0; j < i + 1; ++j) {
-        buf[j] = 0xFF - j;
+        buf[j] = 0xFF - static_cast<unsigned char>(j);
       }
       conn1->Send(buf, i + 1, options);
       conn2->Send(buf, i + 1, options);
@@ -321,31 +327,31 @@ class TurnPortTest : public testing::Test,
   }
 
  protected:
-  talk_base::Thread* main_;
-  talk_base::scoped_ptr<talk_base::PhysicalSocketServer> pss_;
-  talk_base::scoped_ptr<talk_base::VirtualSocketServer> ss_;
-  talk_base::SocketServerScope ss_scope_;
-  talk_base::Network network_;
-  talk_base::BasicPacketSocketFactory socket_factory_;
-  talk_base::scoped_ptr<talk_base::AsyncPacketSocket> socket_;
+  rtc::Thread* main_;
+  rtc::scoped_ptr<rtc::PhysicalSocketServer> pss_;
+  rtc::scoped_ptr<rtc::VirtualSocketServer> ss_;
+  rtc::SocketServerScope ss_scope_;
+  rtc::Network network_;
+  rtc::BasicPacketSocketFactory socket_factory_;
+  rtc::scoped_ptr<rtc::AsyncPacketSocket> socket_;
   cricket::TestTurnServer turn_server_;
-  talk_base::scoped_ptr<TurnPort> turn_port_;
-  talk_base::scoped_ptr<UDPPort> udp_port_;
+  rtc::scoped_ptr<TurnPort> turn_port_;
+  rtc::scoped_ptr<UDPPort> udp_port_;
   bool turn_ready_;
   bool turn_error_;
   bool turn_unknown_address_;
   bool turn_create_permission_success_;
   bool udp_ready_;
   bool test_finish_;
-  std::vector<talk_base::Buffer> turn_packets_;
-  std::vector<talk_base::Buffer> udp_packets_;
-  talk_base::PacketOptions options;
+  std::vector<rtc::Buffer> turn_packets_;
+  std::vector<rtc::Buffer> udp_packets_;
+  rtc::PacketOptions options;
 };
 
 // Do a normal TURN allocation.
 TEST_F(TurnPortTest, TestTurnAllocate) {
   CreateTurnPort(kTurnUsername, kTurnPassword, kTurnUdpProtoAddr);
-  EXPECT_EQ(0, turn_port_->SetOption(talk_base::Socket::OPT_SNDBUF, 10*1024));
+  EXPECT_EQ(0, turn_port_->SetOption(rtc::Socket::OPT_SNDBUF, 10*1024));
   turn_port_->PrepareAddress();
   EXPECT_TRUE_WAIT(turn_ready_, kTimeout);
   ASSERT_EQ(1U, turn_port_->Candidates().size());
@@ -354,10 +360,11 @@ TEST_F(TurnPortTest, TestTurnAllocate) {
   EXPECT_NE(0, turn_port_->Candidates()[0].address().port());
 }
 
+// Testing a normal UDP allocation using TCP connection.
 TEST_F(TurnPortTest, TestTurnTcpAllocate) {
   turn_server_.AddInternalSocket(kTurnTcpIntAddr, cricket::PROTO_TCP);
   CreateTurnPort(kTurnUsername, kTurnPassword, kTurnTcpProtoAddr);
-  EXPECT_EQ(0, turn_port_->SetOption(talk_base::Socket::OPT_SNDBUF, 10*1024));
+  EXPECT_EQ(0, turn_port_->SetOption(rtc::Socket::OPT_SNDBUF, 10*1024));
   turn_port_->PrepareAddress();
   EXPECT_TRUE_WAIT(turn_ready_, kTimeout);
   ASSERT_EQ(1U, turn_port_->Candidates().size());
@@ -366,6 +373,33 @@ TEST_F(TurnPortTest, TestTurnTcpAllocate) {
   EXPECT_NE(0, turn_port_->Candidates()[0].address().port());
 }
 
+// Testing turn port will attempt to create TCP socket on address resolution
+// failure.
+TEST_F(TurnPortTest, DISABLED_TestTurnTcpOnAddressResolveFailure) {
+  turn_server_.AddInternalSocket(kTurnTcpIntAddr, cricket::PROTO_TCP);
+  CreateTurnPort(kTurnUsername, kTurnPassword, cricket::ProtocolAddress(
+      rtc::SocketAddress("www.webrtc-blah-blah.com", 3478),
+      cricket::PROTO_TCP));
+  turn_port_->PrepareAddress();
+  EXPECT_TRUE_WAIT(turn_error_, kTimeout);
+  // As VSS doesn't provide a DNS resolution, name resolve will fail. TurnPort
+  // will proceed in creating a TCP socket which will fail as there is no
+  // server on the above domain and error will be set to SOCKET_ERROR.
+  EXPECT_EQ(SOCKET_ERROR, turn_port_->error());
+}
+
+// In case of UDP on address resolve failure, TurnPort will not create socket
+// and return allocate failure.
+TEST_F(TurnPortTest, DISABLED_TestTurnUdpOnAdressResolveFailure) {
+  CreateTurnPort(kTurnUsername, kTurnPassword, cricket::ProtocolAddress(
+      rtc::SocketAddress("www.webrtc-blah-blah.com", 3478),
+      cricket::PROTO_UDP));
+  turn_port_->PrepareAddress();
+  EXPECT_TRUE_WAIT(turn_error_, kTimeout);
+  // Error from turn port will not be socket error.
+  EXPECT_NE(SOCKET_ERROR, turn_port_->error());
+}
+
 // Try to do a TURN allocation with an invalid password.
 TEST_F(TurnPortTest, TestTurnAllocateBadPassword) {
   CreateTurnPort(kTurnUsername, "bad", kTurnUdpProtoAddr);
@@ -374,6 +408,80 @@ TEST_F(TurnPortTest, TestTurnAllocateBadPassword) {
   ASSERT_EQ(0U, turn_port_->Candidates().size());
 }
 
+// Tests that a new local address is created after
+// STUN_ERROR_ALLOCATION_MISMATCH.
+TEST_F(TurnPortTest, TestTurnAllocateMismatch) {
+  // Do a normal allocation first.
+  CreateTurnPort(kTurnUsername, kTurnPassword, kTurnUdpProtoAddr);
+  turn_port_->PrepareAddress();
+  EXPECT_TRUE_WAIT(turn_ready_, kTimeout);
+  rtc::SocketAddress first_addr(turn_port_->socket()->GetLocalAddress());
+
+  // Forces the socket server to assign the same port.
+  ss_->SetNextPortForTesting(first_addr.port());
+
+  turn_ready_ = false;
+  CreateTurnPort(kTurnUsername, kTurnPassword, kTurnUdpProtoAddr);
+  turn_port_->PrepareAddress();
+
+  // Verifies that the new port has the same address.
+  EXPECT_EQ(first_addr, turn_port_->socket()->GetLocalAddress());
+
+  EXPECT_TRUE_WAIT(turn_ready_, kTimeout);
+
+  // Verifies that the new port has a different address now.
+  EXPECT_NE(first_addr, turn_port_->socket()->GetLocalAddress());
+}
+
+// Tests that a shared-socket-TurnPort creates its own socket after
+// STUN_ERROR_ALLOCATION_MISMATCH.
+TEST_F(TurnPortTest, TestSharedSocketAllocateMismatch) {
+  // Do a normal allocation first.
+  CreateSharedTurnPort(kTurnUsername, kTurnPassword, kTurnUdpProtoAddr);
+  turn_port_->PrepareAddress();
+  EXPECT_TRUE_WAIT(turn_ready_, kTimeout);
+  rtc::SocketAddress first_addr(turn_port_->socket()->GetLocalAddress());
+
+  turn_ready_ = false;
+  CreateSharedTurnPort(kTurnUsername, kTurnPassword, kTurnUdpProtoAddr);
+
+  // Verifies that the new port has the same address.
+  EXPECT_EQ(first_addr, turn_port_->socket()->GetLocalAddress());
+  EXPECT_TRUE(turn_port_->SharedSocket());
+
+  turn_port_->PrepareAddress();
+  EXPECT_TRUE_WAIT(turn_ready_, kTimeout);
+
+  // Verifies that the new port has a different address now.
+  EXPECT_NE(first_addr, turn_port_->socket()->GetLocalAddress());
+  EXPECT_FALSE(turn_port_->SharedSocket());
+}
+
+TEST_F(TurnPortTest, TestTurnTcpAllocateMismatch) {
+  turn_server_.AddInternalSocket(kTurnTcpIntAddr, cricket::PROTO_TCP);
+  CreateTurnPort(kTurnUsername, kTurnPassword, kTurnTcpProtoAddr);
+
+  // Do a normal allocation first.
+  turn_port_->PrepareAddress();
+  EXPECT_TRUE_WAIT(turn_ready_, kTimeout);
+  rtc::SocketAddress first_addr(turn_port_->socket()->GetLocalAddress());
+
+  // Forces the socket server to assign the same port.
+  ss_->SetNextPortForTesting(first_addr.port());
+
+  turn_ready_ = false;
+  CreateTurnPort(kTurnUsername, kTurnPassword, kTurnTcpProtoAddr);
+  turn_port_->PrepareAddress();
+
+  // Verifies that the new port has the same address.
+  EXPECT_EQ(first_addr, turn_port_->socket()->GetLocalAddress());
+
+  EXPECT_TRUE_WAIT(turn_ready_, kTimeout);
+
+  // Verifies that the new port has a different address now.
+  EXPECT_NE(first_addr, turn_port_->socket()->GetLocalAddress());
+}
+
 // Do a TURN allocation and try to send a packet to it from the outside.
 // The packet should be dropped. Then, try to send a packet from TURN to the
 // outside. It should reach its destination. Finally, try again from the
@@ -408,6 +516,103 @@ TEST_F(TurnPortTest, TestTurnTlsTcpConnectionFails) {
   ASSERT_EQ(0U, turn_port_->Candidates().size());
 }
 
+// Test try-alternate-server feature.
+TEST_F(TurnPortTest, TestTurnAlternateServer) {
+  std::vector<rtc::SocketAddress> redirect_addresses;
+  redirect_addresses.push_back(kTurnAlternateUdpIntAddr);
+
+  cricket::TestTurnRedirector redirector(redirect_addresses);
+  turn_server_.AddInternalSocket(kTurnAlternateUdpIntAddr,
+                                 cricket::PROTO_UDP);
+  turn_server_.set_redirect_hook(&redirector);
+  CreateTurnPort(kTurnUsername, kTurnPassword, kTurnUdpProtoAddr);
+
+  // Retrieve the address before we run the state machine.
+  const SocketAddress old_addr = turn_port_->server_address().address;
+
+  turn_port_->PrepareAddress();
+  EXPECT_TRUE_WAIT(turn_ready_, kTimeout);
+  // Retrieve the address again, the turn port's address should be
+  // changed.
+  const SocketAddress new_addr = turn_port_->server_address().address;
+  EXPECT_NE(old_addr, new_addr);
+  ASSERT_EQ(1U, turn_port_->Candidates().size());
+  EXPECT_EQ(kTurnUdpExtAddr.ipaddr(),
+            turn_port_->Candidates()[0].address().ipaddr());
+  EXPECT_NE(0, turn_port_->Candidates()[0].address().port());
+}
+
+// Test that we fail when we redirect to an address different from
+// current IP family.
+TEST_F(TurnPortTest, TestTurnAlternateServerV4toV6) {
+  std::vector<rtc::SocketAddress> redirect_addresses;
+  redirect_addresses.push_back(kTurnUdpIPv6IntAddr);
+
+  cricket::TestTurnRedirector redirector(redirect_addresses);
+  turn_server_.AddInternalSocket(kTurnAlternateUdpIntAddr,
+                                 cricket::PROTO_UDP);
+  turn_server_.set_redirect_hook(&redirector);
+  CreateTurnPort(kTurnUsername, kTurnPassword, kTurnUdpProtoAddr);
+  turn_port_->PrepareAddress();
+  EXPECT_TRUE_WAIT(turn_error_, kTimeout);
+}
+
+// Test that we fail to handle alternate-server response over TCP protocol.
+TEST_F(TurnPortTest, TestTurnAlternateServerTcp) {
+  std::vector<rtc::SocketAddress> redirect_addresses;
+  redirect_addresses.push_back(kTurnAlternateUdpIntAddr);
+
+  cricket::TestTurnRedirector redirector(redirect_addresses);
+  turn_server_.set_redirect_hook(&redirector);
+  turn_server_.AddInternalSocket(kTurnTcpIntAddr, cricket::PROTO_TCP);
+  CreateTurnPort(kTurnUsername, kTurnPassword, kTurnTcpProtoAddr);
+
+  turn_server_.AddInternalSocket(kTurnAlternateUdpIntAddr, cricket::PROTO_TCP);
+  turn_port_->PrepareAddress();
+  EXPECT_TRUE_WAIT(turn_error_, kTimeout);
+}
+
+// Test try-alternate-server catches the case of pingpong.
+TEST_F(TurnPortTest, TestTurnAlternateServerPingPong) {
+  std::vector<rtc::SocketAddress> redirect_addresses;
+  redirect_addresses.push_back(kTurnAlternateUdpIntAddr);
+  redirect_addresses.push_back(kTurnUdpIntAddr);
+
+  cricket::TestTurnRedirector redirector(redirect_addresses);
+
+  turn_server_.AddInternalSocket(kTurnAlternateUdpIntAddr,
+                                 cricket::PROTO_UDP);
+  turn_server_.set_redirect_hook(&redirector);
+  CreateTurnPort(kTurnUsername, kTurnPassword, kTurnUdpProtoAddr);
+
+  turn_port_->PrepareAddress();
+  EXPECT_TRUE_WAIT(turn_error_, kTimeout);
+  ASSERT_EQ(0U, turn_port_->Candidates().size());
+  rtc::SocketAddress address;
+  // Verify that we have exhausted all alternate servers instead of
+  // failure caused by other errors.
+  EXPECT_FALSE(redirector.ShouldRedirect(address, &address));
+}
+
+// Test try-alternate-server catch the case of repeated server.
+TEST_F(TurnPortTest, TestTurnAlternateServerDetectRepetition) {
+  std::vector<rtc::SocketAddress> redirect_addresses;
+  redirect_addresses.push_back(kTurnAlternateUdpIntAddr);
+  redirect_addresses.push_back(kTurnAlternateUdpIntAddr);
+
+  cricket::TestTurnRedirector redirector(redirect_addresses);
+
+  turn_server_.AddInternalSocket(kTurnAlternateUdpIntAddr,
+                                 cricket::PROTO_UDP);
+  turn_server_.set_redirect_hook(&redirector);
+  CreateTurnPort(kTurnUsername, kTurnPassword, kTurnUdpProtoAddr);
+
+  turn_port_->PrepareAddress();
+  EXPECT_TRUE_WAIT(turn_error_, kTimeout);
+  ASSERT_EQ(0U, turn_port_->Candidates().size());
+}
+
+
 // Run TurnConnectionTest with one-time-use nonce feature.
 // Here server will send a 438 STALE_NONCE error message for
 // every TURN transaction.
@@ -466,16 +671,15 @@ TEST_F(TurnPortTest, TestResolverShutdown) {
   int last_fd_count = GetFDCount();
   // Need to supply unresolved address to kick off resolver.
   CreateTurnPort(kLocalIPv6Addr, kTurnUsername, kTurnPassword,
-                 cricket::ProtocolAddress(talk_base::SocketAddress(
+                 cricket::ProtocolAddress(rtc::SocketAddress(
                     "stun.l.google.com", 3478), cricket::PROTO_UDP));
   turn_port_->PrepareAddress();
   ASSERT_TRUE_WAIT(turn_error_, kTimeout);
   EXPECT_TRUE(turn_port_->Candidates().empty());
   turn_port_.reset();
-  talk_base::Thread::Current()->Post(this, MSG_TESTFINISH);
+  rtc::Thread::Current()->Post(this, MSG_TESTFINISH);
   // Waiting for above message to be processed.
   ASSERT_TRUE_WAIT(test_finish_, kTimeout);
   EXPECT_EQ(last_fd_count, GetFDCount());
 }
 #endif
-