Remove GICE.

webrtc/p2p/client/portallocator_unittest.cc

 /*
  *  Copyright 2009 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 626 matching lines @@
   for (size_t i = 0; i < candidates_.size(); ++i) {
     EXPECT_EQ(std::string(cricket::RELAY_PORT_TYPE), candidates_[i].type());
     EXPECT_EQ(
         candidates_[0].related_address(),
         rtc::EmptySocketAddressWithFamily(candidates_[0].address().family()));
   }
 }
 
 TEST_F(PortAllocatorTest, TestCandidateFilterWithHostOnly) {
   AddInterface(kClientAddr);
-  allocator().set_flags(cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG |
-                        cricket::PORTALLOCATOR_ENABLE_SHARED_SOCKET);
+  allocator().set_flags(cricket::PORTALLOCATOR_ENABLE_SHARED_SOCKET);
   allocator().set_candidate_filter(cricket::CF_HOST);
   EXPECT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
   session_->StartGettingPorts();
   EXPECT_TRUE_WAIT(candidate_allocation_done_, kDefaultAllocationTimeout);
   EXPECT_EQ(2U, candidates_.size()); // Host UDP/TCP candidates only.
   EXPECT_EQ(2U, ports_.size()); // UDP/TCP ports only.
   for (size_t i = 0; i < candidates_.size(); ++i) {
     EXPECT_EQ(std::string(cricket::LOCAL_PORT_TYPE), candidates_[i].type());
   }
 }
 
 // Host is behind the NAT.
 TEST_F(PortAllocatorTest, TestCandidateFilterWithReflexiveOnly) {
   AddInterface(kPrivateAddr);
   ResetWithNatServer(kStunAddr);
 
-  allocator().set_flags(cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG |
-                        cricket::PORTALLOCATOR_ENABLE_SHARED_SOCKET);
+  allocator().set_flags(cricket::PORTALLOCATOR_ENABLE_SHARED_SOCKET);
   allocator().set_candidate_filter(cricket::CF_REFLEXIVE);
   EXPECT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
   session_->StartGettingPorts();
   EXPECT_TRUE_WAIT(candidate_allocation_done_, kDefaultAllocationTimeout);
   // Host is behind NAT, no private address will be exposed. Hence only UDP
   // port with STUN candidate will be sent outside.
   EXPECT_EQ(1U, candidates_.size()); // Only STUN candidate.
   EXPECT_EQ(1U, ports_.size());  // Only UDP port will be in ready state.
   for (size_t i = 0; i < candidates_.size(); ++i) {
     EXPECT_EQ(std::string(cricket::STUN_PORT_TYPE), candidates_[i].type());
     EXPECT_EQ(
         candidates_[0].related_address(),
         rtc::EmptySocketAddressWithFamily(candidates_[0].address().family()));
   }
 }
 
 // Host is not behind the NAT.
 TEST_F(PortAllocatorTest, TestCandidateFilterWithReflexiveOnlyAndNoNAT) {
   AddInterface(kClientAddr);
-  allocator().set_flags(cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG |
-                        cricket::PORTALLOCATOR_ENABLE_SHARED_SOCKET);
+  allocator().set_flags(cricket::PORTALLOCATOR_ENABLE_SHARED_SOCKET);
   allocator().set_candidate_filter(cricket::CF_REFLEXIVE);
   EXPECT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
   session_->StartGettingPorts();
   EXPECT_TRUE_WAIT(candidate_allocation_done_, kDefaultAllocationTimeout);
   // Host has a public address, both UDP and TCP candidates will be exposed.
   EXPECT_EQ(2U, candidates_.size()); // Local UDP + TCP candidate.
   EXPECT_EQ(2U, ports_.size());  //  UDP and TCP ports will be in ready state.
   for (size_t i = 0; i < candidates_.size(); ++i) {
     EXPECT_EQ(std::string(cricket::LOCAL_PORT_TYPE), candidates_[i].type());
   }
 }
 
-// Test that when the PORTALLOCATOR_ENABLE_SHARED_UFRAG is enabled we got same
-// ufrag and pwd for the collected candidates.
+// Test that we get the same ufrag and pwd for all candidates.
 TEST_F(PortAllocatorTest, TestEnableSharedUfrag) {
-  allocator().set_flags(allocator().flags() |
-                        cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG);
   AddInterface(kClientAddr);
   EXPECT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
   session_->StartGettingPorts();
   ASSERT_EQ_WAIT(7U, candidates_.size(), kDefaultAllocationTimeout);
   EXPECT_PRED5(CheckCandidate, candidates_[0],
       cricket::ICE_CANDIDATE_COMPONENT_RTP, "local", "udp", kClientAddr);
   EXPECT_PRED5(CheckCandidate, candidates_[1],
       cricket::ICE_CANDIDATE_COMPONENT_RTP, "stun", "udp", kClientAddr);
   EXPECT_PRED5(CheckCandidate, candidates_[5],
       cricket::ICE_CANDIDATE_COMPONENT_RTP, "local", "tcp", kClientAddr);
   EXPECT_EQ(4U, ports_.size());
   EXPECT_EQ(kIceUfrag0, candidates_[0].username());
   EXPECT_EQ(kIceUfrag0, candidates_[1].username());
   EXPECT_EQ(kIceUfrag0, candidates_[2].username());
   EXPECT_EQ(kIcePwd0, candidates_[0].password());
   EXPECT_EQ(kIcePwd0, candidates_[1].password());
   EXPECT_TRUE(candidate_allocation_done_);
 }
 
-// Test that when the PORTALLOCATOR_ENABLE_SHARED_UFRAG isn't enabled we got
-// different ufrag and pwd for the collected candidates.
-TEST_F(PortAllocatorTest, TestDisableSharedUfrag) {
-  allocator().set_flags(allocator().flags() &
-                        ~cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG);
-  AddInterface(kClientAddr);
-  EXPECT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
-  session_->StartGettingPorts();
-  ASSERT_EQ_WAIT(7U, candidates_.size(), kDefaultAllocationTimeout);
-  EXPECT_PRED5(CheckCandidate, candidates_[0],
-      cricket::ICE_CANDIDATE_COMPONENT_RTP, "local", "udp", kClientAddr);
-  EXPECT_PRED5(CheckCandidate, candidates_[1],
-      cricket::ICE_CANDIDATE_COMPONENT_RTP, "stun", "udp", kClientAddr);
-  EXPECT_EQ(4U, ports_.size());
-  // Port should generate random ufrag and pwd.
-  EXPECT_NE(kIceUfrag0, candidates_[0].username());
-  EXPECT_NE(kIceUfrag0, candidates_[1].username());
-  EXPECT_NE(candidates_[0].username(), candidates_[1].username());
-  EXPECT_NE(kIcePwd0, candidates_[0].password());
-  EXPECT_NE(kIcePwd0, candidates_[1].password());
-  EXPECT_NE(candidates_[0].password(), candidates_[1].password());
-  EXPECT_TRUE(candidate_allocation_done_);
-}
-
 // Test that when PORTALLOCATOR_ENABLE_SHARED_SOCKET is enabled only one port
 // is allocated for udp and stun. Also verify there is only one candidate
 // (local) if stun candidate is same as local candidate, which will be the case
 // in a public network like the below test.
 TEST_F(PortAllocatorTest, TestSharedSocketWithoutNat) {
   AddInterface(kClientAddr);
   allocator_->set_flags(allocator().flags() |
-                        cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG |
                         cricket::PORTALLOCATOR_ENABLE_SHARED_SOCKET);
   EXPECT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
   session_->StartGettingPorts();
   ASSERT_EQ_WAIT(6U, candidates_.size(), kDefaultAllocationTimeout);
   EXPECT_EQ(3U, ports_.size());
   EXPECT_PRED5(CheckCandidate, candidates_[0],
       cricket::ICE_CANDIDATE_COMPONENT_RTP, "local", "udp", kClientAddr);
   EXPECT_TRUE_WAIT(candidate_allocation_done_, kDefaultAllocationTimeout);
 }
 
 // Test that when PORTALLOCATOR_ENABLE_SHARED_SOCKET is enabled only one port
 // is allocated for udp and stun. In this test we should expect both stun and
 // local candidates as client behind a nat.
 TEST_F(PortAllocatorTest, TestSharedSocketWithNat) {
   AddInterface(kClientAddr);
   ResetWithNatServer(kStunAddr);
 
   allocator_->set_flags(allocator().flags() |
-                        cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG |
                         cricket::PORTALLOCATOR_ENABLE_SHARED_SOCKET);
   EXPECT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
   session_->StartGettingPorts();
   ASSERT_EQ_WAIT(3U, candidates_.size(), kDefaultAllocationTimeout);
   ASSERT_EQ(2U, ports_.size());
   EXPECT_PRED5(CheckCandidate, candidates_[0],
       cricket::ICE_CANDIDATE_COMPONENT_RTP, "local", "udp", kClientAddr);
   EXPECT_PRED5(CheckCandidate, candidates_[1],
       cricket::ICE_CANDIDATE_COMPONENT_RTP, "stun", "udp",
       rtc::SocketAddress(kNatUdpAddr.ipaddr(), 0));
   EXPECT_TRUE_WAIT(candidate_allocation_done_, kDefaultAllocationTimeout);
   EXPECT_EQ(3U, candidates_.size());
 }
 
 // Test TURN port in shared socket mode with UDP and TCP TURN server addresses.
 TEST_F(PortAllocatorTest, TestSharedSocketWithoutNatUsingTurn) {
   turn_server_.AddInternalSocket(kTurnTcpIntAddr, cricket::PROTO_TCP);
   AddInterface(kClientAddr);
   allocator_.reset(new cricket::BasicPortAllocator(&network_manager_));
 
   AddTurnServers(kTurnUdpIntAddr, kTurnTcpIntAddr);
 
   allocator_->set_step_delay(cricket::kMinimumStepDelay);
   allocator_->set_flags(allocator().flags() |
-                        cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG |
                         cricket::PORTALLOCATOR_ENABLE_SHARED_SOCKET |
                         cricket::PORTALLOCATOR_DISABLE_TCP);
 
   EXPECT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
   session_->StartGettingPorts();
 
   ASSERT_EQ_WAIT(3U, candidates_.size(), kDefaultAllocationTimeout);
   ASSERT_EQ(3U, ports_.size());
   EXPECT_PRED5(CheckCandidate, candidates_[0],
       cricket::ICE_CANDIDATE_COMPONENT_RTP, "local", "udp", kClientAddr);
@@ skipping 17 matching lines @@
   cricket::RelayServerConfig relay_server(cricket::RELAY_TURN);
   cricket::RelayCredentials credentials(kTurnUsername, kTurnPassword);
   relay_server.credentials = credentials;
   relay_server.ports.push_back(cricket::ProtocolAddress(
       rtc::SocketAddress("localhost", 3478),
       cricket::PROTO_UDP, false));
   allocator_->AddRelay(relay_server);
 
   allocator_->set_step_delay(cricket::kMinimumStepDelay);
   allocator_->set_flags(allocator().flags() |
-                        cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG |
                         cricket::PORTALLOCATOR_ENABLE_SHARED_SOCKET |
                         cricket::PORTALLOCATOR_DISABLE_TCP);
 
   EXPECT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
   session_->StartGettingPorts();
 
   EXPECT_EQ_WAIT(2U, ports_.size(), kDefaultAllocationTimeout);
 }
 
 // Test that when PORTALLOCATOR_ENABLE_SHARED_SOCKET is enabled only one port
 // is allocated for udp/stun/turn. In this test we should expect all local,
 // stun and turn candidates.
 TEST_F(PortAllocatorTest, TestSharedSocketWithNatUsingTurn) {
   AddInterface(kClientAddr);
   ResetWithNatServer(kStunAddr);
 
   AddTurnServers(kTurnUdpIntAddr, rtc::SocketAddress());
 
   allocator_->set_flags(allocator().flags() |
-                        cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG |
                         cricket::PORTALLOCATOR_ENABLE_SHARED_SOCKET |
                         cricket::PORTALLOCATOR_DISABLE_TCP);
 
   EXPECT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
   session_->StartGettingPorts();
 
   ASSERT_EQ_WAIT(3U, candidates_.size(), kDefaultAllocationTimeout);
   ASSERT_EQ(2U, ports_.size());
   EXPECT_PRED5(CheckCandidate, candidates_[0],
       cricket::ICE_CANDIDATE_COMPONENT_RTP, "local", "udp", kClientAddr);
@@ skipping 18 matching lines @@
   // Use an empty SocketAddress to add a NAT without STUN server.
   ResetWithNatServer(SocketAddress());
   AddTurnServers(kTurnUdpIntAddr, rtc::SocketAddress());
 
   // Must set the step delay to 0 to make sure the relay allocation phase is
   // started before the STUN candidates are obtained, so that the STUN binding
   // response is processed when both StunPort and TurnPort exist to reproduce
   // webrtc issue 3537.
   allocator_->set_step_delay(0);
   allocator_->set_flags(allocator().flags() |
-                        cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG |
                         cricket::PORTALLOCATOR_ENABLE_SHARED_SOCKET |
                         cricket::PORTALLOCATOR_DISABLE_TCP);
 
   EXPECT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
   session_->StartGettingPorts();
 
   ASSERT_EQ_WAIT(3U, candidates_.size(), kDefaultAllocationTimeout);
   EXPECT_PRED5(CheckCandidate, candidates_[0],
       cricket::ICE_CANDIDATE_COMPONENT_RTP, "local", "udp", kClientAddr);
   EXPECT_PRED5(CheckCandidate, candidates_[1],
@@ skipping 14 matching lines @@
 // Test that when only a TCP TURN server is available, we do NOT use it as
 // a UDP STUN server, as this could leak our IP address. Thus we should only
 // expect two ports, a UDPPort and TurnPort.
 TEST_F(PortAllocatorTest, TestSharedSocketWithNatUsingTurnTcpOnly) {
   turn_server_.AddInternalSocket(kTurnTcpIntAddr, cricket::PROTO_TCP);
   AddInterface(kClientAddr);
   ResetWithNatServer(rtc::SocketAddress());
   AddTurnServers(rtc::SocketAddress(), kTurnTcpIntAddr);
 
   allocator_->set_flags(allocator().flags() |
-                        cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG |
                         cricket::PORTALLOCATOR_ENABLE_SHARED_SOCKET |
                         cricket::PORTALLOCATOR_DISABLE_TCP);
 
   EXPECT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
   session_->StartGettingPorts();
 
   ASSERT_EQ_WAIT(2U, candidates_.size(), kDefaultAllocationTimeout);
   ASSERT_EQ(2U, ports_.size());
   EXPECT_PRED5(CheckCandidate, candidates_[0],
                cricket::ICE_CANDIDATE_COMPONENT_RTP, "local", "udp",
@@ skipping 12 matching lines @@
 // 'relay' candidates.
 // TODO(deadbeef): Remove this test when support for non-shared socket mode
 // is removed.
 TEST_F(PortAllocatorTest, TestNonSharedSocketWithNatUsingTurnAsStun) {
   AddInterface(kClientAddr);
   // Use an empty SocketAddress to add a NAT without STUN server.
   ResetWithNatServer(SocketAddress());
   AddTurnServers(kTurnUdpIntAddr, rtc::SocketAddress());
 
   allocator_->set_flags(allocator().flags() |
-                        cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG |
                         cricket::PORTALLOCATOR_DISABLE_TCP);
 
   EXPECT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
   session_->StartGettingPorts();
 
   ASSERT_EQ_WAIT(3U, candidates_.size(), kDefaultAllocationTimeout);
   ASSERT_EQ(3U, ports_.size());
   EXPECT_PRED5(CheckCandidate, candidates_[0],
                cricket::ICE_CANDIDATE_COMPONENT_RTP, "local", "udp",
                kClientAddr);
@@ skipping 18 matching lines @@
 // server is used as a STUN server and we get a 'stun' candidate.
 TEST_F(PortAllocatorTest, TestSharedSocketWithNatUsingTurnAndStun) {
   AddInterface(kClientAddr);
   // Configure with STUN server but destroy it, so we can ensure that it's
   // the TURN server actually being used as a STUN server.
   ResetWithNatServer(kStunAddr);
   stun_server_.reset();
   AddTurnServers(kTurnUdpIntAddr, rtc::SocketAddress());
 
   allocator_->set_flags(allocator().flags() |
-                        cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG |
                         cricket::PORTALLOCATOR_ENABLE_SHARED_SOCKET |
                         cricket::PORTALLOCATOR_DISABLE_TCP);
 
   EXPECT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
   session_->StartGettingPorts();
 
   ASSERT_EQ_WAIT(3U, candidates_.size(), kDefaultAllocationTimeout);
   EXPECT_PRED5(CheckCandidate, candidates_[0],
                cricket::ICE_CANDIDATE_COMPONENT_RTP, "local", "udp",
                kClientAddr);
   EXPECT_PRED5(CheckCandidate, candidates_[1],
                cricket::ICE_CANDIDATE_COMPONENT_RTP, "stun", "udp",
                rtc::SocketAddress(kNatUdpAddr.ipaddr(), 0));
   EXPECT_PRED5(CheckCandidate, candidates_[2],
                cricket::ICE_CANDIDATE_COMPONENT_RTP, "relay", "udp",
                rtc::SocketAddress(kTurnUdpExtAddr.ipaddr(), 0));
   EXPECT_EQ(candidates_[2].related_address(), candidates_[1].address());
 
   // Don't bother waiting for STUN timeout, since we already verified
   // that we got a STUN candidate from the TURN server.
 }
 
 // This test verifies when PORTALLOCATOR_ENABLE_SHARED_SOCKET flag is enabled
 // and fail to generate STUN candidate, local UDP candidate is generated
 // properly.
 TEST_F(PortAllocatorTest, TestSharedSocketNoUdpAllowed) {
   allocator().set_flags(allocator().flags() |
                         cricket::PORTALLOCATOR_DISABLE_RELAY |
                         cricket::PORTALLOCATOR_DISABLE_TCP |
-                        cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG |
                         cricket::PORTALLOCATOR_ENABLE_SHARED_SOCKET);
   fss_->AddRule(false, rtc::FP_UDP, rtc::FD_ANY, kClientAddr);
   AddInterface(kClientAddr);
   EXPECT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
   session_->StartGettingPorts();
   ASSERT_EQ_WAIT(1U, ports_.size(), kDefaultAllocationTimeout);
   EXPECT_EQ(1U, candidates_.size());
   EXPECT_PRED5(CheckCandidate, candidates_[0],
       cricket::ICE_CANDIDATE_COMPONENT_RTP, "local", "udp", kClientAddr);
   // STUN timeout is 9sec. We need to wait to get candidate done signal.
   EXPECT_TRUE_WAIT(candidate_allocation_done_, 10000);
   EXPECT_EQ(1U, candidates_.size());
 }
 
 // This test verifies allocator can use IPv6 addresses along with IPv4.
 TEST_F(PortAllocatorTest, TestEnableIPv6Addresses) {
   allocator().set_flags(allocator().flags() |
                         cricket::PORTALLOCATOR_DISABLE_RELAY |
                         cricket::PORTALLOCATOR_ENABLE_IPV6 |
-                        cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG |
                         cricket::PORTALLOCATOR_ENABLE_SHARED_SOCKET);
   AddInterface(kClientIPv6Addr);
   AddInterface(kClientAddr);
   allocator_->set_step_delay(cricket::kMinimumStepDelay);
   EXPECT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
   session_->StartGettingPorts();
   ASSERT_EQ_WAIT(4U, ports_.size(), kDefaultAllocationTimeout);
   EXPECT_EQ(4U, candidates_.size());
   EXPECT_TRUE_WAIT(candidate_allocation_done_, kDefaultAllocationTimeout);
   EXPECT_PRED5(CheckCandidate, candidates_[0],
@@ skipping 38 matching lines @@
   alloc.SetStunHosts(stun_servers);
   EXPECT_EQ(2U, alloc.relay_hosts().size());
   EXPECT_EQ(2U, alloc.stun_hosts().size());
 }
 
 // Test that the HttpPortAllocator uses correct URL to create sessions.
 TEST(HttpPortAllocatorTest, TestSessionRequestUrl) {
   rtc::FakeNetworkManager network_manager;
   cricket::HttpPortAllocator alloc(&network_manager, "unit test agent");
 
-  // Disable PORTALLOCATOR_ENABLE_SHARED_UFRAG.
-  alloc.set_flags(alloc.flags() & ~cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG);
   rtc::scoped_ptr<cricket::HttpPortAllocatorSessionBase> session(
       static_cast<cricket::HttpPortAllocatorSession*>(
           alloc.CreateSessionInternal(
               "test content", 0, kIceUfrag0, kIcePwd0)));
   std::string url = session->GetSessionRequestUrl();
   LOG(LS_INFO) << "url: " << url;
-  EXPECT_EQ(std::string(cricket::HttpPortAllocator::kCreateSessionURL), url);
-
-  // Enable PORTALLOCATOR_ENABLE_SHARED_UFRAG.
-  alloc.set_flags(alloc.flags() | cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG);
-  session.reset(static_cast<cricket::HttpPortAllocatorSession*>(
-      alloc.CreateSessionInternal("test content", 0, kIceUfrag0, kIcePwd0)));
-  url = session->GetSessionRequestUrl();
-  LOG(LS_INFO) << "url: " << url;
   std::vector<std::string> parts;
   rtc::split(url, '?', &parts);
   ASSERT_EQ(2U, parts.size());
 
   std::vector<std::string> args_parts;
   rtc::split(parts[1], '&', &args_parts);
 
   std::map<std::string, std::string> args;
   for (std::vector<std::string>::iterator it = args_parts.begin();
        it != args_parts.end(); ++it) {
@@ skipping 14 matching lines @@
   EXPECT_TRUE(CreateSession(cricket::ICE_CANDIDATE_COMPONENT_RTP));
   session_->StartGettingPorts();
   ASSERT_EQ_WAIT(7U, candidates_.size(), kDefaultAllocationTimeout);
   EXPECT_EQ(4U, ports_.size());
 
   auto it = ports_.begin();
   for (; it != ports_.end(); ++it) {
     (reinterpret_cast<cricket::Port*>(*it))->Destroy();
   }
 }