remoting/host/chromoting_host_unittest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/bind.h"
   6 #include "base/bind_helpers.h"
   7 #include "base/memory/scoped_ptr.h"
   8 #include "base/message_loop/message_loop_proxy.h"
   9 #include "remoting/base/auto_thread_task_runner.h"
  10 #include "remoting/host/audio_capturer.h"
  11 #include "remoting/host/chromoting_host.h"
  12 #include "remoting/host/chromoting_host_context.h"
  13 #include "remoting/host/desktop_environment.h"
  14 #include "remoting/host/host_mock_objects.h"
  15 #include "remoting/host/screen_capturer_fake.h"
  16 #include "remoting/jingle_glue/mock_objects.h"
  17 #include "remoting/proto/video.pb.h"
  18 #include "remoting/protocol/errors.h"
  19 #include "remoting/protocol/protocol_mock_objects.h"
  20 #include "remoting/protocol/session_config.h"
  21 #include "testing/gmock/include/gmock/gmock.h"
  22 #include "testing/gmock_mutant.h"
  23 #include "testing/gtest/include/gtest/gtest.h"
  24
  25 using ::remoting::protocol::MockClientStub;
  26 using ::remoting::protocol::MockConnectionToClient;
  27 using ::remoting::protocol::MockConnectionToClientEventHandler;
  28 using ::remoting::protocol::MockHostStub;
  29 using ::remoting::protocol::MockSession;
  30 using ::remoting::protocol::MockVideoStub;
  31 using ::remoting::protocol::Session;
  32 using ::remoting::protocol::SessionConfig;
  33
  34 using testing::_;
  35 using testing::AnyNumber;
  36 using testing::AtLeast;
  37 using testing::AtMost;
  38 using testing::CreateFunctor;
  39 using testing::DeleteArg;
  40 using testing::DoAll;
  41 using testing::Expectation;
  42 using testing::InSequence;
  43 using testing::Invoke;
  44 using testing::InvokeArgument;
  45 using testing::InvokeWithoutArgs;
  46 using testing::Return;
  47 using testing::ReturnRef;
  48 using testing::SaveArg;
  49 using testing::Sequence;
  50
  51 namespace remoting {
  52
  53 namespace {
  54
  55 void PostQuitTask(base::MessageLoop* message_loop) {
  56   message_loop->PostTask(FROM_HERE, base::MessageLoop::QuitClosure());
  57 }
  58
  59 // Run the task and delete it afterwards. This action is used to deal with
  60 // done callbacks.
  61 ACTION(RunDoneTask) {
  62   arg1.Run();
  63 }
  64
  65 }  // namespace
  66
  67 class ChromotingHostTest : public testing::Test {
  68  public:
  69   ChromotingHostTest() {
  70   }
  71
  72   virtual void SetUp() OVERRIDE {
  73     task_runner_ = new AutoThreadTaskRunner(
  74         message_loop_.message_loop_proxy(),
  75         base::Bind(&ChromotingHostTest::QuitMainMessageLoop,
  76                    base::Unretained(this)));
  77
  78     desktop_environment_factory_.reset(new MockDesktopEnvironmentFactory());
  79     EXPECT_CALL(*desktop_environment_factory_, CreatePtr())
  80         .Times(AnyNumber())
  81         .WillRepeatedly(Invoke(this,
  82                                &ChromotingHostTest::CreateDesktopEnvironment));
  83     EXPECT_CALL(*desktop_environment_factory_, SupportsAudioCapture())
  84         .Times(AnyNumber())
  85         .WillRepeatedly(Return(false));
  86
  87     session_manager_ = new protocol::MockSessionManager();
  88
  89     host_.reset(new ChromotingHost(
  90         &signal_strategy_,
  91         desktop_environment_factory_.get(),
  92         scoped_ptr<protocol::SessionManager>(session_manager_),
  93         task_runner_,   // Audio
  94         task_runner_,   // Input
  95         task_runner_,   // Video capture
  96         task_runner_,   // Video encode
  97         task_runner_,   // Network
  98         task_runner_)); // UI
  99     host_->AddStatusObserver(&host_status_observer_);
 100
 101     xmpp_login_ = "host@domain";
 102     session1_ = new MockSession();
 103     session2_ = new MockSession();
 104     session_unowned1_.reset(new MockSession());
 105     session_unowned2_.reset(new MockSession());
 106     session_config1_ = SessionConfig::ForTest();
 107     session_jid1_ = "user@domain/rest-of-jid";
 108     session_config2_ = SessionConfig::ForTest();
 109     session_jid2_ = "user2@domain/rest-of-jid";
 110     session_unowned_config1_ = SessionConfig::ForTest();
 111     session_unowned_jid1_ = "user3@doman/rest-of-jid";
 112     session_unowned_config2_ = SessionConfig::ForTest();
 113     session_unowned_jid2_ = "user4@doman/rest-of-jid";
 114
 115     EXPECT_CALL(*session1_, jid())
 116         .WillRepeatedly(ReturnRef(session_jid1_));
 117     EXPECT_CALL(*session2_, jid())
 118         .WillRepeatedly(ReturnRef(session_jid2_));
 119     EXPECT_CALL(*session_unowned1_, jid())
 120         .WillRepeatedly(ReturnRef(session_unowned_jid1_));
 121     EXPECT_CALL(*session_unowned2_, jid())
 122         .WillRepeatedly(ReturnRef(session_unowned_jid2_));
 123     EXPECT_CALL(*session1_, SetEventHandler(_))
 124         .Times(AnyNumber());
 125     EXPECT_CALL(*session2_, SetEventHandler(_))
 126         .Times(AnyNumber());
 127     EXPECT_CALL(*session_unowned1_, SetEventHandler(_))
 128         .Times(AnyNumber())
 129         .WillRepeatedly(SaveArg<0>(&session_unowned1_event_handler_));
 130     EXPECT_CALL(*session_unowned2_, SetEventHandler(_))
 131         .Times(AnyNumber())
 132         .WillRepeatedly(SaveArg<0>(&session_unowned2_event_handler_));
 133     EXPECT_CALL(*session1_, config())
 134         .WillRepeatedly(ReturnRef(session_config1_));
 135     EXPECT_CALL(*session2_, config())
 136         .WillRepeatedly(ReturnRef(session_config2_));
 137
 138     owned_connection1_.reset(new MockConnectionToClient(session1_,
 139                                                         &host_stub1_));
 140     connection1_ = owned_connection1_.get();
 141     owned_connection2_.reset(new MockConnectionToClient(session2_,
 142                                                         &host_stub2_));
 143     connection2_ = owned_connection2_.get();
 144
 145     ON_CALL(video_stub1_, ProcessVideoPacketPtr(_, _))
 146         .WillByDefault(DeleteArg<0>());
 147     ON_CALL(video_stub2_, ProcessVideoPacketPtr(_, _))
 148         .WillByDefault(DeleteArg<0>());
 149     ON_CALL(*connection1_, video_stub())
 150         .WillByDefault(Return(&video_stub1_));
 151     ON_CALL(*connection1_, client_stub())
 152         .WillByDefault(Return(&client_stub1_));
 153     ON_CALL(*connection1_, session())
 154         .WillByDefault(Return(session1_));
 155     ON_CALL(*connection2_, video_stub())
 156         .WillByDefault(Return(&video_stub2_));
 157     ON_CALL(*connection2_, client_stub())
 158         .WillByDefault(Return(&client_stub2_));
 159     ON_CALL(*connection2_, session())
 160         .WillByDefault(Return(session2_));
 161     EXPECT_CALL(*connection1_, video_stub())
 162         .Times(AnyNumber());
 163     EXPECT_CALL(*connection1_, client_stub())
 164         .Times(AnyNumber());
 165     EXPECT_CALL(*connection1_, session())
 166         .Times(AnyNumber());
 167     EXPECT_CALL(*connection2_, video_stub())
 168         .Times(AnyNumber());
 169     EXPECT_CALL(*connection2_, client_stub())
 170         .Times(AnyNumber());
 171     EXPECT_CALL(*connection2_, session())
 172         .Times(AnyNumber());
 173
 174     empty_candidate_config_ =
 175         protocol::CandidateSessionConfig::CreateEmpty();
 176     default_candidate_config_ =
 177         protocol::CandidateSessionConfig::CreateDefault();
 178   }
 179
 180   // Helper method to pretend a client is connected to ChromotingHost.
 181   void SimulateClientConnection(int connection_index, bool authenticate,
 182                                 bool reject) {
 183     scoped_ptr<protocol::ConnectionToClient> connection =
 184         ((connection_index == 0) ? owned_connection1_ : owned_connection2_).
 185         PassAs<protocol::ConnectionToClient>();
 186     protocol::ConnectionToClient* connection_ptr = connection.get();
 187     scoped_ptr<ClientSession> client(new ClientSession(
 188         host_.get(),
 189         task_runner_, // Audio
 190         task_runner_, // Input
 191         task_runner_, // Video capture
 192         task_runner_, // Video encode
 193         task_runner_, // Network
 194         task_runner_, // UI
 195         connection.Pass(),
 196         desktop_environment_factory_.get(),
 197         base::TimeDelta(),
 198         NULL));
 199
 200     connection_ptr->set_host_stub(client.get());
 201
 202     if (authenticate) {
 203       task_runner_->PostTask(
 204           FROM_HERE,
 205           base::Bind(&ClientSession::OnConnectionAuthenticated,
 206                      base::Unretained(client.get()), connection_ptr));
 207       if (!reject) {
 208         task_runner_->PostTask(
 209             FROM_HERE,
 210             base::Bind(&ClientSession::OnConnectionChannelsConnected,
 211                        base::Unretained(client.get()), connection_ptr));
 212       }
 213     } else {
 214       task_runner_->PostTask(
 215           FROM_HERE, base::Bind(&ClientSession::OnConnectionClosed,
 216                                 base::Unretained(client.get()), connection_ptr,
 217                                 protocol::AUTHENTICATION_FAILED));
 218     }
 219
 220     get_client(connection_index) = client.get();
 221
 222     // |host| is responsible for deleting |client| from now on.
 223     host_->clients_.push_back(client.release());
 224   }
 225
 226   virtual void TearDown() OVERRIDE {
 227     // Make sure that the host has been properly deleted.
 228     DCHECK(host_.get() == NULL);
 229   }
 230
 231   // Change the session route for |client1_|.
 232   void ChangeSessionRoute(const std::string& channel_name,
 233                           const protocol::TransportRoute& route) {
 234     host_->OnSessionRouteChange(get_client(0), channel_name, route);
 235   }
 236
 237   // Creates a DesktopEnvironment with a fake webrtc::ScreenCapturer, to mock
 238   // DesktopEnvironmentFactory::Create().
 239   DesktopEnvironment* CreateDesktopEnvironment() {
 240     MockDesktopEnvironment* desktop_environment = new MockDesktopEnvironment();
 241     EXPECT_CALL(*desktop_environment, CreateAudioCapturerPtr())
 242         .Times(0);
 243     EXPECT_CALL(*desktop_environment, CreateInputInjectorPtr())
 244         .Times(AtMost(1))
 245         .WillOnce(Invoke(this, &ChromotingHostTest::CreateInputInjector));
 246     EXPECT_CALL(*desktop_environment, CreateScreenControlsPtr())
 247         .Times(AtMost(1));
 248     EXPECT_CALL(*desktop_environment, CreateVideoCapturerPtr())
 249         .Times(AtMost(1))
 250         .WillOnce(Invoke(this, &ChromotingHostTest::CreateVideoCapturer));
 251     EXPECT_CALL(*desktop_environment, GetCapabilities())
 252         .Times(AtMost(1));
 253     EXPECT_CALL(*desktop_environment, SetCapabilities(_))
 254         .Times(AtMost(1));
 255
 256     return desktop_environment;
 257   }
 258
 259   // Creates a dummy InputInjector, to mock
 260   // DesktopEnvironment::CreateInputInjector().
 261   InputInjector* CreateInputInjector() {
 262     MockInputInjector* input_injector = new MockInputInjector();
 263     EXPECT_CALL(*input_injector, StartPtr(_));
 264     return input_injector;
 265   }
 266
 267   // Creates a fake webrtc::ScreenCapturer, to mock
 268   // DesktopEnvironment::CreateVideoCapturer().
 269   webrtc::ScreenCapturer* CreateVideoCapturer() {
 270     return new ScreenCapturerFake();
 271   }
 272
 273   void DisconnectAllClients() {
 274     host_->DisconnectAllClients();
 275   }
 276
 277   // Helper method to disconnect client 1 from the host.
 278   void DisconnectClient1() {
 279     NotifyClientSessionClosed(0);
 280   }
 281
 282   // Notify |host_| that the authenticating client has been rejected.
 283   void RejectAuthenticatingClient() {
 284     host_->RejectAuthenticatingClient();
 285   }
 286
 287   // Notify |host_| that a client session has closed.
 288   void NotifyClientSessionClosed(int connection_index) {
 289     get_client(connection_index)->OnConnectionClosed(
 290         get_connection(connection_index), protocol::OK);
 291   }
 292
 293   void NotifyConnectionClosed1() {
 294     if (session_unowned1_event_handler_) {
 295       session_unowned1_event_handler_->OnSessionStateChange(Session::CLOSED);
 296     }
 297   }
 298
 299   void NotifyConnectionClosed2() {
 300     if (session_unowned2_event_handler_) {
 301       session_unowned2_event_handler_->OnSessionStateChange(Session::CLOSED);
 302     }
 303   }
 304
 305   void ShutdownHost() {
 306     task_runner_->PostTask(
 307         FROM_HERE,
 308         base::Bind(&ChromotingHostTest::StopAndReleaseTaskRunner,
 309                    base::Unretained(this)));
 310   }
 311
 312   void StopAndReleaseTaskRunner() {
 313     host_.reset();
 314     task_runner_ = NULL;
 315     desktop_environment_factory_.reset();
 316   }
 317
 318   void QuitMainMessageLoop() {
 319     PostQuitTask(&message_loop_);
 320   }
 321
 322   // Expect the host and session manager to start, and return the expectation
 323   // that the session manager has started.
 324   Expectation ExpectHostAndSessionManagerStart() {
 325     EXPECT_CALL(host_status_observer_, OnStart(xmpp_login_));
 326     return EXPECT_CALL(*session_manager_, Init(_, host_.get()));
 327   }
 328
 329   // Expect a client to connect.
 330   // Return an expectation that a session has started, and that the first
 331   // video packet has been sent to the client.
 332   // Do |action| when that happens.
 333   template <class A>
 334   Expectation ExpectClientConnected(int connection_index, A action) {
 335     const std::string& session_jid = get_session_jid(connection_index);
 336     MockVideoStub& video_stub = get_video_stub(connection_index);
 337
 338     Expectation client_authenticated =
 339         EXPECT_CALL(host_status_observer_, OnClientAuthenticated(session_jid));
 340     EXPECT_CALL(host_status_observer_, OnClientConnected(session_jid))
 341         .After(client_authenticated);
 342     Expectation video_packet_sent =
 343         EXPECT_CALL(video_stub, ProcessVideoPacketPtr(_, _))
 344         .After(client_authenticated)
 345         .WillOnce(DoAll(
 346             action,
 347             RunDoneTask()))
 348         .RetiresOnSaturation();
 349     EXPECT_CALL(video_stub, ProcessVideoPacketPtr(_, _))
 350         .Times(AnyNumber())
 351         .After(video_packet_sent)
 352         .WillRepeatedly(RunDoneTask());
 353     return video_packet_sent;
 354   }
 355
 356   // Return an expectation that a client will disconnect after a given
 357   // expectation. The given action will be done after the event executor is
 358   // notified that the session has finished.
 359   template <class A>
 360   Expectation ExpectClientDisconnected(int connection_index,
 361                                        bool expect_host_status_change,
 362                                        Expectation after,
 363                                        A action) {
 364     MockConnectionToClient* connection = get_connection(connection_index);
 365
 366     Expectation client_disconnected =
 367         EXPECT_CALL(*connection, Disconnect())
 368             .After(after)
 369             .WillOnce(InvokeWithoutArgs(CreateFunctor(
 370                 this, &ChromotingHostTest::NotifyClientSessionClosed,
 371                 connection_index)))
 372             .RetiresOnSaturation();
 373     ExpectClientDisconnectEffects(connection_index,
 374                                   expect_host_status_change,
 375                                   after,
 376                                   action);
 377     return client_disconnected;
 378   }
 379
 380   // Expect the side-effects of a client disconnection, after a given
 381   // expectation. The given action will be done after the event executor is
 382   // notifed that the session has finished.
 383   template <class A>
 384   void ExpectClientDisconnectEffects(int connection_index,
 385                                      bool expect_host_status_change,
 386                                      Expectation after,
 387                                      A action) {
 388     const std::string& session_jid = get_session_jid(connection_index);
 389
 390     if (expect_host_status_change) {
 391       EXPECT_CALL(host_status_observer_, OnClientDisconnected(session_jid))
 392           .After(after)
 393           .WillOnce(action)
 394           .RetiresOnSaturation();
 395     }
 396   }
 397
 398  protected:
 399   base::MessageLoop message_loop_;
 400   scoped_refptr<AutoThreadTaskRunner> task_runner_;
 401   MockConnectionToClientEventHandler handler_;
 402   MockSignalStrategy signal_strategy_;
 403   scoped_ptr<MockDesktopEnvironmentFactory> desktop_environment_factory_;
 404   scoped_ptr<ChromotingHost> host_;
 405   MockHostStatusObserver host_status_observer_;
 406   protocol::MockSessionManager* session_manager_;
 407   std::string xmpp_login_;
 408   MockConnectionToClient* connection1_;
 409   scoped_ptr<MockConnectionToClient> owned_connection1_;
 410   ClientSession* client1_;
 411   std::string session_jid1_;
 412   MockSession* session1_;  // Owned by |connection_|.
 413   SessionConfig session_config1_;
 414   MockVideoStub video_stub1_;
 415   MockClientStub client_stub1_;
 416   MockHostStub host_stub1_;
 417   MockConnectionToClient* connection2_;
 418   scoped_ptr<MockConnectionToClient> owned_connection2_;
 419   ClientSession* client2_;
 420   std::string session_jid2_;
 421   MockSession* session2_;  // Owned by |connection2_|.
 422   SessionConfig session_config2_;
 423   MockVideoStub video_stub2_;
 424   MockClientStub client_stub2_;
 425   MockHostStub host_stub2_;
 426   scoped_ptr<MockSession> session_unowned1_;  // Not owned by a connection.
 427   SessionConfig session_unowned_config1_;
 428   std::string session_unowned_jid1_;
 429   scoped_ptr<MockSession> session_unowned2_;  // Not owned by a connection.
 430   SessionConfig session_unowned_config2_;
 431   std::string session_unowned_jid2_;
 432   protocol::Session::EventHandler* session_unowned1_event_handler_;
 433   protocol::Session::EventHandler* session_unowned2_event_handler_;
 434   scoped_ptr<protocol::CandidateSessionConfig> empty_candidate_config_;
 435   scoped_ptr<protocol::CandidateSessionConfig> default_candidate_config_;
 436
 437   MockConnectionToClient*& get_connection(int connection_index) {
 438     return (connection_index == 0) ? connection1_ : connection2_;
 439   }
 440
 441   // Returns the cached client pointers client1_ or client2_.
 442   ClientSession*& get_client(int connection_index) {
 443     return (connection_index == 0) ? client1_ : client2_;
 444   }
 445
 446   // Returns the list of clients of the host_.
 447   std::list<ClientSession*>& get_clients_from_host() {
 448     return host_->clients_;
 449   }
 450
 451   const std::string& get_session_jid(int connection_index) {
 452     return (connection_index == 0) ? session_jid1_ : session_jid2_;
 453   }
 454
 455   MockVideoStub& get_video_stub(int connection_index) {
 456     return (connection_index == 0) ? video_stub1_ : video_stub2_;
 457   }
 458 };
 459
 460 TEST_F(ChromotingHostTest, StartAndShutdown) {
 461   Expectation start = ExpectHostAndSessionManagerStart();
 462   EXPECT_CALL(host_status_observer_, OnShutdown()).After(start);
 463
 464   host_->Start(xmpp_login_);
 465   ShutdownHost();
 466   message_loop_.Run();
 467 }
 468
 469 TEST_F(ChromotingHostTest, Connect) {
 470   ExpectHostAndSessionManagerStart();
 471
 472   // Shut down the host when the first video packet is received.
 473   Expectation video_packet_sent = ExpectClientConnected(
 474       0, InvokeWithoutArgs(this, &ChromotingHostTest::ShutdownHost));
 475   Expectation client_disconnected = ExpectClientDisconnected(
 476       0, true, video_packet_sent, InvokeWithoutArgs(base::DoNothing));
 477   EXPECT_CALL(host_status_observer_, OnShutdown()).After(client_disconnected);
 478
 479   host_->Start(xmpp_login_);
 480   SimulateClientConnection(0, true, false);
 481   message_loop_.Run();
 482 }
 483
 484 TEST_F(ChromotingHostTest, RejectAuthenticatingClient) {
 485   Expectation start = ExpectHostAndSessionManagerStart();
 486   EXPECT_CALL(host_status_observer_, OnClientAuthenticated(session_jid1_))
 487       .WillOnce(InvokeWithoutArgs(
 488       this, &ChromotingHostTest::RejectAuthenticatingClient));
 489   ExpectClientDisconnected(
 490       0, true, start,
 491       InvokeWithoutArgs(this, &ChromotingHostTest::ShutdownHost));
 492   EXPECT_CALL(host_status_observer_, OnShutdown());
 493
 494   host_->Start(xmpp_login_);
 495   SimulateClientConnection(0, true, true);
 496   message_loop_.Run();
 497 }
 498
 499 TEST_F(ChromotingHostTest, AuthenticationFailed) {
 500   ExpectHostAndSessionManagerStart();
 501   EXPECT_CALL(host_status_observer_, OnAccessDenied(session_jid1_))
 502       .WillOnce(InvokeWithoutArgs(this, &ChromotingHostTest::ShutdownHost));
 503   EXPECT_CALL(host_status_observer_, OnShutdown());
 504
 505   host_->Start(xmpp_login_);
 506   SimulateClientConnection(0, false, false);
 507   message_loop_.Run();
 508 }
 509
 510 TEST_F(ChromotingHostTest, Reconnect) {
 511   ExpectHostAndSessionManagerStart();
 512
 513   // When a video packet is received on the first connection, disconnect it,
 514   // then quit the message loop.
 515   Expectation video_packet_sent1 = ExpectClientConnected(0, DoAll(
 516       InvokeWithoutArgs(this, &ChromotingHostTest::DisconnectClient1),
 517       InvokeWithoutArgs(this, &ChromotingHostTest::QuitMainMessageLoop)));
 518   ExpectClientDisconnectEffects(
 519       0, true, video_packet_sent1, InvokeWithoutArgs(base::DoNothing));
 520
 521   // When a video packet is received on the second connection, shut down the
 522   // host.
 523   Expectation video_packet_sent2 = ExpectClientConnected(
 524       1, InvokeWithoutArgs(this, &ChromotingHostTest::ShutdownHost));
 525   Expectation client_disconnected2 = ExpectClientDisconnected(
 526       1, true, video_packet_sent2, InvokeWithoutArgs(base::DoNothing));
 527   EXPECT_CALL(host_status_observer_, OnShutdown()).After(client_disconnected2);
 528
 529   host_->Start(xmpp_login_);
 530   SimulateClientConnection(0, true, false);
 531   message_loop_.Run();
 532   SimulateClientConnection(1, true, false);
 533   message_loop_.Run();
 534 }
 535
 536 TEST_F(ChromotingHostTest, ConnectWhenAnotherClientIsConnected) {
 537   ExpectHostAndSessionManagerStart();
 538
 539   // When a video packet is received, connect the second connection.
 540   // This should disconnect the first connection.
 541   Expectation video_packet_sent1 = ExpectClientConnected(
 542       0,
 543       InvokeWithoutArgs(
 544           CreateFunctor(
 545               this,
 546               &ChromotingHostTest::SimulateClientConnection, 1, true, false)));
 547   ExpectClientDisconnected(
 548       0, true, video_packet_sent1, InvokeWithoutArgs(base::DoNothing));
 549   Expectation video_packet_sent2 = ExpectClientConnected(
 550       1, InvokeWithoutArgs(this, &ChromotingHostTest::ShutdownHost));
 551   Expectation client_disconnected2 = ExpectClientDisconnected(
 552       1, true, video_packet_sent2, InvokeWithoutArgs(base::DoNothing));
 553   EXPECT_CALL(host_status_observer_, OnShutdown()).After(client_disconnected2);
 554
 555   host_->Start(xmpp_login_);
 556   SimulateClientConnection(0, true, false);
 557   message_loop_.Run();
 558 }
 559
 560 TEST_F(ChromotingHostTest, IncomingSessionDeclined) {
 561   protocol::SessionManager::IncomingSessionResponse response =
 562       protocol::SessionManager::ACCEPT;
 563   host_->OnIncomingSession(session1_, &response);
 564   EXPECT_EQ(protocol::SessionManager::DECLINE, response);
 565
 566   ShutdownHost();
 567   message_loop_.Run();
 568 }
 569
 570 TEST_F(ChromotingHostTest, IncomingSessionIncompatible) {
 571   ExpectHostAndSessionManagerStart();
 572   EXPECT_CALL(*session_unowned1_, candidate_config()).WillOnce(Return(
 573       empty_candidate_config_.get()));
 574   EXPECT_CALL(host_status_observer_, OnShutdown());
 575
 576   host_->Start(xmpp_login_);
 577
 578   protocol::SessionManager::IncomingSessionResponse response =
 579       protocol::SessionManager::ACCEPT;
 580   host_->OnIncomingSession(session_unowned1_.get(), &response);
 581   EXPECT_EQ(protocol::SessionManager::INCOMPATIBLE, response);
 582
 583   ShutdownHost();
 584   message_loop_.Run();
 585 }
 586
 587 TEST_F(ChromotingHostTest, IncomingSessionAccepted) {
 588   ExpectHostAndSessionManagerStart();
 589   EXPECT_CALL(*session_unowned1_, candidate_config()).WillOnce(Return(
 590       default_candidate_config_.get()));
 591   EXPECT_CALL(*session_unowned1_, set_config(_));
 592   EXPECT_CALL(*session_unowned1_, Close()).WillOnce(InvokeWithoutArgs(
 593     this, &ChromotingHostTest::NotifyConnectionClosed1));
 594   EXPECT_CALL(host_status_observer_, OnAccessDenied(_));
 595   EXPECT_CALL(host_status_observer_, OnShutdown());
 596
 597   host_->Start(xmpp_login_);
 598
 599   protocol::SessionManager::IncomingSessionResponse response =
 600       protocol::SessionManager::DECLINE;
 601   host_->OnIncomingSession(session_unowned1_.release(), &response);
 602   EXPECT_EQ(protocol::SessionManager::ACCEPT, response);
 603
 604   ShutdownHost();
 605   message_loop_.Run();
 606 }
 607
 608 TEST_F(ChromotingHostTest, LoginBackOffUponConnection) {
 609   ExpectHostAndSessionManagerStart();
 610   EXPECT_CALL(*session_unowned1_, candidate_config()).WillOnce(
 611     Return(default_candidate_config_.get()));
 612   EXPECT_CALL(*session_unowned1_, set_config(_));
 613   EXPECT_CALL(*session_unowned1_, Close()).WillOnce(
 614     InvokeWithoutArgs(this, &ChromotingHostTest::NotifyConnectionClosed1));
 615   EXPECT_CALL(host_status_observer_, OnAccessDenied(_));
 616   EXPECT_CALL(host_status_observer_, OnShutdown());
 617
 618   host_->Start(xmpp_login_);
 619
 620   protocol::SessionManager::IncomingSessionResponse response =
 621       protocol::SessionManager::DECLINE;
 622
 623   host_->OnIncomingSession(session_unowned1_.release(), &response);
 624   EXPECT_EQ(protocol::SessionManager::ACCEPT, response);
 625
 626   host_->OnSessionAuthenticating(get_clients_from_host().front());
 627   host_->OnIncomingSession(session_unowned2_.get(), &response);
 628   EXPECT_EQ(protocol::SessionManager::OVERLOAD, response);
 629
 630   ShutdownHost();
 631   message_loop_.Run();
 632 }
 633
 634 TEST_F(ChromotingHostTest, LoginBackOffUponAuthenticating) {
 635   Expectation start = ExpectHostAndSessionManagerStart();
 636   EXPECT_CALL(*session_unowned1_, candidate_config()).WillOnce(
 637     Return(default_candidate_config_.get()));
 638   EXPECT_CALL(*session_unowned1_, set_config(_));
 639   EXPECT_CALL(*session_unowned1_, Close()).WillOnce(
 640     InvokeWithoutArgs(this, &ChromotingHostTest::NotifyConnectionClosed1));
 641
 642   EXPECT_CALL(*session_unowned2_, candidate_config()).WillOnce(
 643     Return(default_candidate_config_.get()));
 644   EXPECT_CALL(*session_unowned2_, set_config(_));
 645   EXPECT_CALL(*session_unowned2_, Close()).WillOnce(
 646     InvokeWithoutArgs(this, &ChromotingHostTest::NotifyConnectionClosed2));
 647
 648   EXPECT_CALL(host_status_observer_, OnShutdown());
 649
 650   host_->Start(xmpp_login_);
 651
 652   protocol::SessionManager::IncomingSessionResponse response =
 653       protocol::SessionManager::DECLINE;
 654
 655   host_->OnIncomingSession(session_unowned1_.release(), &response);
 656   EXPECT_EQ(protocol::SessionManager::ACCEPT, response);
 657
 658   host_->OnIncomingSession(session_unowned2_.release(), &response);
 659   EXPECT_EQ(protocol::SessionManager::ACCEPT, response);
 660
 661   // This will set the backoff.
 662   host_->OnSessionAuthenticating(get_clients_from_host().front());
 663
 664   // This should disconnect client2.
 665   host_->OnSessionAuthenticating(get_clients_from_host().back());
 666
 667   // Verify that the host only has 1 client at this point.
 668   EXPECT_EQ(get_clients_from_host().size(), 1U);
 669
 670   ShutdownHost();
 671   message_loop_.Run();
 672 }
 673
 674 TEST_F(ChromotingHostTest, OnSessionRouteChange) {
 675   std::string channel_name("ChannelName");
 676   protocol::TransportRoute route;
 677
 678   ExpectHostAndSessionManagerStart();
 679   Expectation video_packet_sent = ExpectClientConnected(
 680       0, InvokeWithoutArgs(CreateFunctor(
 681           this, &ChromotingHostTest::ChangeSessionRoute, channel_name, route)));
 682   Expectation route_change =
 683       EXPECT_CALL(host_status_observer_, OnClientRouteChange(
 684           session_jid1_, channel_name, _))
 685       .After(video_packet_sent)
 686       .WillOnce(InvokeWithoutArgs(this, &ChromotingHostTest::ShutdownHost));
 687   ExpectClientDisconnected(0, true, route_change,
 688                            InvokeWithoutArgs(base::DoNothing));
 689   EXPECT_CALL(host_status_observer_, OnShutdown());
 690
 691   host_->Start(xmpp_login_);
 692   SimulateClientConnection(0, true, false);
 693   message_loop_.Run();
 694 }
 695
 696 TEST_F(ChromotingHostTest, DisconnectAllClients) {
 697   ExpectHostAndSessionManagerStart();
 698   Expectation video_packet_sent = ExpectClientConnected(
 699       0, InvokeWithoutArgs(this, &ChromotingHostTest::DisconnectAllClients));
 700   ExpectClientDisconnected(0, true, video_packet_sent,
 701       InvokeWithoutArgs(this, &ChromotingHostTest::ShutdownHost));
 702   EXPECT_CALL(host_status_observer_, OnShutdown());
 703
 704   host_->Start(xmpp_login_);
 705   SimulateClientConnection(0, true, false);
 706   message_loop_.Run();
 707 }
 708
 709 }  // namespace remoting