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/fake_desktop_capturer.h"
  15 #include "remoting/host/fake_mouse_cursor_monitor.h"
  16 #include "remoting/host/host_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 "remoting/signaling/mock_signal_strategy.h"
  22 #include "testing/gmock/include/gmock/gmock.h"
  23 #include "testing/gmock_mutant.h"
  24 #include "testing/gtest/include/gtest/gtest.h"
  25
  26 using ::remoting::protocol::MockClientStub;
  27 using ::remoting::protocol::MockConnectionToClient;
  28 using ::remoting::protocol::MockConnectionToClientEventHandler;
  29 using ::remoting::protocol::MockHostStub;
  30 using ::remoting::protocol::MockSession;
  31 using ::remoting::protocol::MockVideoStub;
  32 using ::remoting::protocol::Session;
  33 using ::remoting::protocol::SessionConfig;
  34
  35 using testing::_;
  36 using testing::AnyNumber;
  37 using testing::AtLeast;
  38 using testing::AtMost;
  39 using testing::CreateFunctor;
  40 using testing::DeleteArg;
  41 using testing::DoAll;
  42 using testing::Expectation;
  43 using testing::InSequence;
  44 using testing::Invoke;
  45 using testing::InvokeArgument;
  46 using testing::InvokeWithoutArgs;
  47 using testing::Return;
  48 using testing::ReturnRef;
  49 using testing::SaveArg;
  50 using testing::Sequence;
  51
  52 namespace remoting {
  53
  54 namespace {
  55
  56 void PostQuitTask(base::MessageLoop* message_loop) {
  57   message_loop->PostTask(FROM_HERE, base::MessageLoop::QuitClosure());
  58 }
  59
  60 // Run the task and delete it afterwards. This action is used to deal with
  61 // done callbacks.
  62 ACTION(RunDoneTask) {
  63   arg1.Run();
  64 }
  65
  66 }  // namespace
  67
  68 class ChromotingHostTest : public testing::Test {
  69  public:
  70   ChromotingHostTest() {
  71   }
  72
  73   void SetUp() override {
  74     task_runner_ = new AutoThreadTaskRunner(
  75         message_loop_.message_loop_proxy(),
  76         base::Bind(&ChromotingHostTest::QuitMainMessageLoop,
  77                    base::Unretained(this)));
  78
  79     desktop_environment_factory_.reset(new MockDesktopEnvironmentFactory());
  80     EXPECT_CALL(*desktop_environment_factory_, CreatePtr())
  81         .Times(AnyNumber())
  82         .WillRepeatedly(Invoke(this,
  83                                &ChromotingHostTest::CreateDesktopEnvironment));
  84     EXPECT_CALL(*desktop_environment_factory_, SupportsAudioCapture())
  85         .Times(AnyNumber())
  86         .WillRepeatedly(Return(false));
  87
  88     session_manager_ = new protocol::MockSessionManager();
  89
  90     host_.reset(new ChromotingHost(
  91         &signal_strategy_,
  92         desktop_environment_factory_.get(),
  93         make_scoped_ptr(session_manager_),
  94         task_runner_,   // Audio
  95         task_runner_,   // Input
  96         task_runner_,   // Video capture
  97         task_runner_,   // Video encode
  98         task_runner_,   // Network
  99         task_runner_)); // UI
 100     host_->AddStatusObserver(&host_status_observer_);
 101
 102     xmpp_login_ = "host@domain";
 103     session1_ = new MockSession();
 104     session2_ = new MockSession();
 105     session_unowned1_.reset(new MockSession());
 106     session_unowned2_.reset(new MockSession());
 107     session_config1_ = SessionConfig::ForTest();
 108     session_jid1_ = "user@domain/rest-of-jid";
 109     session_config2_ = SessionConfig::ForTest();
 110     session_jid2_ = "user2@domain/rest-of-jid";
 111     session_unowned_jid1_ = "user3@doman/rest-of-jid";
 112     session_unowned_jid2_ = "user4@doman/rest-of-jid";
 113
 114     EXPECT_CALL(*session1_, jid())
 115         .WillRepeatedly(ReturnRef(session_jid1_));
 116     EXPECT_CALL(*session2_, jid())
 117         .WillRepeatedly(ReturnRef(session_jid2_));
 118     EXPECT_CALL(*session_unowned1_, jid())
 119         .WillRepeatedly(ReturnRef(session_unowned_jid1_));
 120     EXPECT_CALL(*session_unowned2_, jid())
 121         .WillRepeatedly(ReturnRef(session_unowned_jid2_));
 122     EXPECT_CALL(*session1_, SetEventHandler(_))
 123         .Times(AnyNumber());
 124     EXPECT_CALL(*session2_, SetEventHandler(_))
 125         .Times(AnyNumber());
 126     EXPECT_CALL(*session_unowned1_, SetEventHandler(_))
 127         .Times(AnyNumber())
 128         .WillRepeatedly(SaveArg<0>(&session_unowned1_event_handler_));
 129     EXPECT_CALL(*session_unowned2_, SetEventHandler(_))
 130         .Times(AnyNumber())
 131         .WillRepeatedly(SaveArg<0>(&session_unowned2_event_handler_));
 132     EXPECT_CALL(*session1_, config())
 133         .WillRepeatedly(ReturnRef(*session_config1_));
 134     EXPECT_CALL(*session2_, config())
 135         .WillRepeatedly(ReturnRef(*session_config2_));
 136
 137     owned_connection1_.reset(new MockConnectionToClient(session1_,
 138                                                         &host_stub1_));
 139     connection1_ = owned_connection1_.get();
 140     owned_connection2_.reset(new MockConnectionToClient(session2_,
 141                                                         &host_stub2_));
 142     connection2_ = owned_connection2_.get();
 143
 144     ON_CALL(video_stub1_, ProcessVideoPacketPtr(_, _))
 145         .WillByDefault(DeleteArg<0>());
 146     ON_CALL(video_stub2_, ProcessVideoPacketPtr(_, _))
 147         .WillByDefault(DeleteArg<0>());
 148     ON_CALL(*connection1_, video_stub())
 149         .WillByDefault(Return(&video_stub1_));
 150     ON_CALL(*connection1_, client_stub())
 151         .WillByDefault(Return(&client_stub1_));
 152     ON_CALL(*connection1_, session())
 153         .WillByDefault(Return(session1_));
 154     ON_CALL(*connection2_, video_stub())
 155         .WillByDefault(Return(&video_stub2_));
 156     ON_CALL(*connection2_, client_stub())
 157         .WillByDefault(Return(&client_stub2_));
 158     ON_CALL(*connection2_, session())
 159         .WillByDefault(Return(session2_));
 160     EXPECT_CALL(*connection1_, video_stub())
 161         .Times(AnyNumber());
 162     EXPECT_CALL(*connection1_, client_stub())
 163         .Times(AnyNumber());
 164     EXPECT_CALL(*connection1_, session())
 165         .Times(AnyNumber());
 166     EXPECT_CALL(*connection2_, video_stub())
 167         .Times(AnyNumber());
 168     EXPECT_CALL(*connection2_, client_stub())
 169         .Times(AnyNumber());
 170     EXPECT_CALL(*connection2_, session())
 171         .Times(AnyNumber());
 172
 173     empty_candidate_config_ =
 174         protocol::CandidateSessionConfig::CreateEmpty();
 175     default_candidate_config_ =
 176         protocol::CandidateSessionConfig::CreateDefault();
 177   }
 178
 179   // Helper method to pretend a client is connected to ChromotingHost.
 180   void SimulateClientConnection(int connection_index, bool authenticate,
 181                                 bool reject) {
 182     scoped_ptr<protocol::ConnectionToClient> connection =
 183         ((connection_index == 0) ? owned_connection1_ : owned_connection2_)
 184             .Pass();
 185     protocol::ConnectionToClient* connection_ptr = connection.get();
 186     scoped_ptr<ClientSession> client(new ClientSession(
 187         host_.get(),
 188         task_runner_, // Audio
 189         task_runner_, // Input
 190         task_runner_, // Video capture
 191         task_runner_, // Video encode
 192         task_runner_, // Network
 193         task_runner_, // UI
 194         connection.Pass(),
 195         desktop_environment_factory_.get(),
 196         base::TimeDelta(),
 197         nullptr,
 198         std::vector<HostExtension*>()));
 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   void TearDown() override {
 227     // Make sure that the host has been properly deleted.
 228     DCHECK(host_.get() == nullptr);
 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::DesktopCapturer, 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, CreateMouseCursorMonitorPtr())
 252         .Times(AtMost(1))
 253         .WillOnce(Invoke(this, &ChromotingHostTest::CreateMouseCursorMonitor));
 254     EXPECT_CALL(*desktop_environment, GetCapabilities())
 255         .Times(AtMost(1));
 256     EXPECT_CALL(*desktop_environment, SetCapabilities(_))
 257         .Times(AtMost(1));
 258
 259     return desktop_environment;
 260   }
 261
 262   // Creates a dummy InputInjector, to mock
 263   // DesktopEnvironment::CreateInputInjector().
 264   InputInjector* CreateInputInjector() {
 265     MockInputInjector* input_injector = new MockInputInjector();
 266     EXPECT_CALL(*input_injector, StartPtr(_));
 267     return input_injector;
 268   }
 269
 270   // Creates a fake webrtc::DesktopCapturer, to mock
 271   // DesktopEnvironment::CreateVideoCapturer().
 272   webrtc::DesktopCapturer* CreateVideoCapturer() {
 273     return new FakeDesktopCapturer();
 274   }
 275
 276   // Creates a MockMouseCursorMonitor, to mock
 277   // DesktopEnvironment::CreateMouseCursorMonitor().
 278   webrtc::MouseCursorMonitor* CreateMouseCursorMonitor() {
 279     return new FakeMouseCursorMonitor();
 280   }
 281
 282   void DisconnectAllClients() {
 283     host_->DisconnectAllClients();
 284   }
 285
 286   // Helper method to disconnect client 1 from the host.
 287   void DisconnectClient1() {
 288     NotifyClientSessionClosed(0);
 289   }
 290
 291   // Notify |host_| that the authenticating client has been rejected.
 292   void RejectAuthenticatingClient() {
 293     host_->RejectAuthenticatingClient();
 294   }
 295
 296   // Notify |host_| that a client session has closed.
 297   void NotifyClientSessionClosed(int connection_index) {
 298     get_client(connection_index)->OnConnectionClosed(
 299         get_connection(connection_index), protocol::OK);
 300   }
 301
 302   void NotifyConnectionClosed1() {
 303     if (session_unowned1_event_handler_) {
 304       session_unowned1_event_handler_->OnSessionStateChange(Session::CLOSED);
 305     }
 306   }
 307
 308   void NotifyConnectionClosed2() {
 309     if (session_unowned2_event_handler_) {
 310       session_unowned2_event_handler_->OnSessionStateChange(Session::CLOSED);
 311     }
 312   }
 313
 314   void ShutdownHost() {
 315     task_runner_->PostTask(
 316         FROM_HERE,
 317         base::Bind(&ChromotingHostTest::StopAndReleaseTaskRunner,
 318                    base::Unretained(this)));
 319   }
 320
 321   void StopAndReleaseTaskRunner() {
 322     host_.reset();
 323     task_runner_ = nullptr;
 324     desktop_environment_factory_.reset();
 325   }
 326
 327   void QuitMainMessageLoop() {
 328     PostQuitTask(&message_loop_);
 329   }
 330
 331   // Expect the host and session manager to start, and return the expectation
 332   // that the session manager has started.
 333   Expectation ExpectHostAndSessionManagerStart() {
 334     EXPECT_CALL(host_status_observer_, OnStart(xmpp_login_));
 335     return EXPECT_CALL(*session_manager_, Init(_, host_.get()));
 336   }
 337
 338   // Expect a client to connect.
 339   // Return an expectation that a session has started, and that the first
 340   // video packet has been sent to the client.
 341   // Do |action| when that happens.
 342   template <class A>
 343   Expectation ExpectClientConnected(int connection_index, A action) {
 344     const std::string& session_jid = get_session_jid(connection_index);
 345     MockVideoStub& video_stub = get_video_stub(connection_index);
 346
 347     Expectation client_authenticated =
 348         EXPECT_CALL(host_status_observer_, OnClientAuthenticated(session_jid));
 349     EXPECT_CALL(host_status_observer_, OnClientConnected(session_jid))
 350         .After(client_authenticated);
 351     Expectation video_packet_sent =
 352         EXPECT_CALL(video_stub, ProcessVideoPacketPtr(_, _))
 353         .After(client_authenticated)
 354         .WillOnce(DoAll(
 355             action,
 356             RunDoneTask()))
 357         .RetiresOnSaturation();
 358     EXPECT_CALL(video_stub, ProcessVideoPacketPtr(_, _))
 359         .Times(AnyNumber())
 360         .After(video_packet_sent)
 361         .WillRepeatedly(RunDoneTask());
 362     return video_packet_sent;
 363   }
 364
 365   // Return an expectation that a client will disconnect after a given
 366   // expectation. The given action will be done after the event executor is
 367   // notified that the session has finished.
 368   template <class A>
 369   Expectation ExpectClientDisconnected(int connection_index,
 370                                        bool expect_host_status_change,
 371                                        Expectation after,
 372                                        A action) {
 373     MockConnectionToClient* connection = get_connection(connection_index);
 374
 375     Expectation client_disconnected =
 376         EXPECT_CALL(*connection, Disconnect())
 377             .After(after)
 378             .WillOnce(InvokeWithoutArgs(CreateFunctor(
 379                 this, &ChromotingHostTest::NotifyClientSessionClosed,
 380                 connection_index)))
 381             .RetiresOnSaturation();
 382     ExpectClientDisconnectEffects(connection_index,
 383                                   expect_host_status_change,
 384                                   after,
 385                                   action);
 386     return client_disconnected;
 387   }
 388
 389   // Expect the side-effects of a client disconnection, after a given
 390   // expectation. The given action will be done after the event executor is
 391   // notifed that the session has finished.
 392   template <class A>
 393   void ExpectClientDisconnectEffects(int connection_index,
 394                                      bool expect_host_status_change,
 395                                      Expectation after,
 396                                      A action) {
 397     const std::string& session_jid = get_session_jid(connection_index);
 398
 399     if (expect_host_status_change) {
 400       EXPECT_CALL(host_status_observer_, OnClientDisconnected(session_jid))
 401           .After(after)
 402           .WillOnce(action)
 403           .RetiresOnSaturation();
 404     }
 405   }
 406
 407  protected:
 408   base::MessageLoop message_loop_;
 409   scoped_refptr<AutoThreadTaskRunner> task_runner_;
 410   MockConnectionToClientEventHandler handler_;
 411   MockSignalStrategy signal_strategy_;
 412   scoped_ptr<MockDesktopEnvironmentFactory> desktop_environment_factory_;
 413   scoped_ptr<ChromotingHost> host_;
 414   MockHostStatusObserver host_status_observer_;
 415   protocol::MockSessionManager* session_manager_;
 416   std::string xmpp_login_;
 417   MockConnectionToClient* connection1_;
 418   scoped_ptr<MockConnectionToClient> owned_connection1_;
 419   ClientSession* client1_;
 420   std::string session_jid1_;
 421   MockSession* session1_;  // Owned by |connection_|.
 422   scoped_ptr<SessionConfig> session_config1_;
 423   MockVideoStub video_stub1_;
 424   MockClientStub client_stub1_;
 425   MockHostStub host_stub1_;
 426   MockConnectionToClient* connection2_;
 427   scoped_ptr<MockConnectionToClient> owned_connection2_;
 428   ClientSession* client2_;
 429   std::string session_jid2_;
 430   MockSession* session2_;  // Owned by |connection2_|.
 431   scoped_ptr<SessionConfig> session_config2_;
 432   MockVideoStub video_stub2_;
 433   MockClientStub client_stub2_;
 434   MockHostStub host_stub2_;
 435   scoped_ptr<MockSession> session_unowned1_;  // Not owned by a connection.
 436   std::string session_unowned_jid1_;
 437   scoped_ptr<MockSession> session_unowned2_;  // Not owned by a connection.
 438   std::string session_unowned_jid2_;
 439   protocol::Session::EventHandler* session_unowned1_event_handler_;
 440   protocol::Session::EventHandler* session_unowned2_event_handler_;
 441   scoped_ptr<protocol::CandidateSessionConfig> empty_candidate_config_;
 442   scoped_ptr<protocol::CandidateSessionConfig> default_candidate_config_;
 443
 444   MockConnectionToClient*& get_connection(int connection_index) {
 445     return (connection_index == 0) ? connection1_ : connection2_;
 446   }
 447
 448   // Returns the cached client pointers client1_ or client2_.
 449   ClientSession*& get_client(int connection_index) {
 450     return (connection_index == 0) ? client1_ : client2_;
 451   }
 452
 453   // Returns the list of clients of the host_.
 454   std::list<ClientSession*>& get_clients_from_host() {
 455     return host_->clients_;
 456   }
 457
 458   const std::string& get_session_jid(int connection_index) {
 459     return (connection_index == 0) ? session_jid1_ : session_jid2_;
 460   }
 461
 462   MockVideoStub& get_video_stub(int connection_index) {
 463     return (connection_index == 0) ? video_stub1_ : video_stub2_;
 464   }
 465 };
 466
 467 TEST_F(ChromotingHostTest, StartAndShutdown) {
 468   Expectation start = ExpectHostAndSessionManagerStart();
 469   EXPECT_CALL(host_status_observer_, OnShutdown()).After(start);
 470
 471   host_->Start(xmpp_login_);
 472   ShutdownHost();
 473   message_loop_.Run();
 474 }
 475
 476 TEST_F(ChromotingHostTest, Connect) {
 477   ExpectHostAndSessionManagerStart();
 478
 479   // Shut down the host when the first video packet is received.
 480   Expectation video_packet_sent = ExpectClientConnected(
 481       0, InvokeWithoutArgs(this, &ChromotingHostTest::ShutdownHost));
 482   Expectation client_disconnected = ExpectClientDisconnected(
 483       0, true, video_packet_sent, InvokeWithoutArgs(base::DoNothing));
 484   EXPECT_CALL(host_status_observer_, OnShutdown()).After(client_disconnected);
 485
 486   host_->Start(xmpp_login_);
 487   SimulateClientConnection(0, true, false);
 488   message_loop_.Run();
 489 }
 490
 491 TEST_F(ChromotingHostTest, RejectAuthenticatingClient) {
 492   Expectation start = ExpectHostAndSessionManagerStart();
 493   EXPECT_CALL(host_status_observer_, OnClientAuthenticated(session_jid1_))
 494       .WillOnce(InvokeWithoutArgs(
 495       this, &ChromotingHostTest::RejectAuthenticatingClient));
 496   ExpectClientDisconnected(
 497       0, true, start,
 498       InvokeWithoutArgs(this, &ChromotingHostTest::ShutdownHost));
 499   EXPECT_CALL(host_status_observer_, OnShutdown());
 500
 501   host_->Start(xmpp_login_);
 502   SimulateClientConnection(0, true, true);
 503   message_loop_.Run();
 504 }
 505
 506 TEST_F(ChromotingHostTest, AuthenticationFailed) {
 507   ExpectHostAndSessionManagerStart();
 508   EXPECT_CALL(host_status_observer_, OnAccessDenied(session_jid1_))
 509       .WillOnce(InvokeWithoutArgs(this, &ChromotingHostTest::ShutdownHost));
 510   EXPECT_CALL(host_status_observer_, OnShutdown());
 511
 512   host_->Start(xmpp_login_);
 513   SimulateClientConnection(0, false, false);
 514   message_loop_.Run();
 515 }
 516
 517 TEST_F(ChromotingHostTest, Reconnect) {
 518   ExpectHostAndSessionManagerStart();
 519
 520   // When a video packet is received on the first connection, disconnect it,
 521   // then quit the message loop.
 522   Expectation video_packet_sent1 = ExpectClientConnected(0, DoAll(
 523       InvokeWithoutArgs(this, &ChromotingHostTest::DisconnectClient1),
 524       InvokeWithoutArgs(this, &ChromotingHostTest::QuitMainMessageLoop)));
 525   ExpectClientDisconnectEffects(
 526       0, true, video_packet_sent1, InvokeWithoutArgs(base::DoNothing));
 527
 528   // When a video packet is received on the second connection, shut down the
 529   // host.
 530   Expectation video_packet_sent2 = ExpectClientConnected(
 531       1, InvokeWithoutArgs(this, &ChromotingHostTest::ShutdownHost));
 532   Expectation client_disconnected2 = ExpectClientDisconnected(
 533       1, true, video_packet_sent2, InvokeWithoutArgs(base::DoNothing));
 534   EXPECT_CALL(host_status_observer_, OnShutdown()).After(client_disconnected2);
 535
 536   host_->Start(xmpp_login_);
 537   SimulateClientConnection(0, true, false);
 538   message_loop_.Run();
 539   SimulateClientConnection(1, true, false);
 540   message_loop_.Run();
 541 }
 542
 543 TEST_F(ChromotingHostTest, ConnectWhenAnotherClientIsConnected) {
 544   ExpectHostAndSessionManagerStart();
 545
 546   // When a video packet is received, connect the second connection.
 547   // This should disconnect the first connection.
 548   Expectation video_packet_sent1 = ExpectClientConnected(
 549       0,
 550       InvokeWithoutArgs(
 551           CreateFunctor(
 552               this,
 553               &ChromotingHostTest::SimulateClientConnection, 1, true, false)));
 554   ExpectClientDisconnected(
 555       0, true, video_packet_sent1, InvokeWithoutArgs(base::DoNothing));
 556   Expectation video_packet_sent2 = ExpectClientConnected(
 557       1, InvokeWithoutArgs(this, &ChromotingHostTest::ShutdownHost));
 558   Expectation client_disconnected2 = ExpectClientDisconnected(
 559       1, true, video_packet_sent2, InvokeWithoutArgs(base::DoNothing));
 560   EXPECT_CALL(host_status_observer_, OnShutdown()).After(client_disconnected2);
 561
 562   host_->Start(xmpp_login_);
 563   SimulateClientConnection(0, true, false);
 564   message_loop_.Run();
 565 }
 566
 567 TEST_F(ChromotingHostTest, IncomingSessionDeclined) {
 568   protocol::SessionManager::IncomingSessionResponse response =
 569       protocol::SessionManager::ACCEPT;
 570   host_->OnIncomingSession(session1_, &response);
 571   EXPECT_EQ(protocol::SessionManager::DECLINE, response);
 572
 573   ShutdownHost();
 574   message_loop_.Run();
 575 }
 576
 577 TEST_F(ChromotingHostTest, IncomingSessionIncompatible) {
 578   ExpectHostAndSessionManagerStart();
 579   EXPECT_CALL(*session_unowned1_, candidate_config()).WillOnce(Return(
 580       empty_candidate_config_.get()));
 581   EXPECT_CALL(host_status_observer_, OnShutdown());
 582
 583   host_->Start(xmpp_login_);
 584
 585   protocol::SessionManager::IncomingSessionResponse response =
 586       protocol::SessionManager::ACCEPT;
 587   host_->OnIncomingSession(session_unowned1_.get(), &response);
 588   EXPECT_EQ(protocol::SessionManager::INCOMPATIBLE, response);
 589
 590   ShutdownHost();
 591   message_loop_.Run();
 592 }
 593
 594 TEST_F(ChromotingHostTest, IncomingSessionAccepted) {
 595   ExpectHostAndSessionManagerStart();
 596   EXPECT_CALL(*session_unowned1_, candidate_config()).WillOnce(Return(
 597       default_candidate_config_.get()));
 598   EXPECT_CALL(*session_unowned1_, set_config_ptr(_));
 599   EXPECT_CALL(*session_unowned1_, Close()).WillOnce(InvokeWithoutArgs(
 600     this, &ChromotingHostTest::NotifyConnectionClosed1));
 601   EXPECT_CALL(host_status_observer_, OnAccessDenied(_));
 602   EXPECT_CALL(host_status_observer_, OnShutdown());
 603
 604   host_->Start(xmpp_login_);
 605
 606   protocol::SessionManager::IncomingSessionResponse response =
 607       protocol::SessionManager::DECLINE;
 608   host_->OnIncomingSession(session_unowned1_.release(), &response);
 609   EXPECT_EQ(protocol::SessionManager::ACCEPT, response);
 610
 611   ShutdownHost();
 612   message_loop_.Run();
 613 }
 614
 615 TEST_F(ChromotingHostTest, LoginBackOffUponConnection) {
 616   ExpectHostAndSessionManagerStart();
 617   EXPECT_CALL(*session_unowned1_, candidate_config()).WillOnce(
 618     Return(default_candidate_config_.get()));
 619   EXPECT_CALL(*session_unowned1_, set_config_ptr(_));
 620   EXPECT_CALL(*session_unowned1_, Close()).WillOnce(
 621     InvokeWithoutArgs(this, &ChromotingHostTest::NotifyConnectionClosed1));
 622   EXPECT_CALL(host_status_observer_, OnAccessDenied(_));
 623   EXPECT_CALL(host_status_observer_, OnShutdown());
 624
 625   host_->Start(xmpp_login_);
 626
 627   protocol::SessionManager::IncomingSessionResponse response =
 628       protocol::SessionManager::DECLINE;
 629
 630   host_->OnIncomingSession(session_unowned1_.release(), &response);
 631   EXPECT_EQ(protocol::SessionManager::ACCEPT, response);
 632
 633   host_->OnSessionAuthenticating(get_clients_from_host().front());
 634   host_->OnIncomingSession(session_unowned2_.get(), &response);
 635   EXPECT_EQ(protocol::SessionManager::OVERLOAD, response);
 636
 637   ShutdownHost();
 638   message_loop_.Run();
 639 }
 640
 641 TEST_F(ChromotingHostTest, LoginBackOffUponAuthenticating) {
 642   Expectation start = ExpectHostAndSessionManagerStart();
 643   EXPECT_CALL(*session_unowned1_, candidate_config()).WillOnce(
 644     Return(default_candidate_config_.get()));
 645   EXPECT_CALL(*session_unowned1_, set_config_ptr(_));
 646   EXPECT_CALL(*session_unowned1_, Close()).WillOnce(
 647     InvokeWithoutArgs(this, &ChromotingHostTest::NotifyConnectionClosed1));
 648
 649   EXPECT_CALL(*session_unowned2_, candidate_config()).WillOnce(
 650     Return(default_candidate_config_.get()));
 651   EXPECT_CALL(*session_unowned2_, set_config_ptr(_));
 652   EXPECT_CALL(*session_unowned2_, Close()).WillOnce(
 653     InvokeWithoutArgs(this, &ChromotingHostTest::NotifyConnectionClosed2));
 654
 655   EXPECT_CALL(host_status_observer_, OnShutdown());
 656
 657   host_->Start(xmpp_login_);
 658
 659   protocol::SessionManager::IncomingSessionResponse response =
 660       protocol::SessionManager::DECLINE;
 661
 662   host_->OnIncomingSession(session_unowned1_.release(), &response);
 663   EXPECT_EQ(protocol::SessionManager::ACCEPT, response);
 664
 665   host_->OnIncomingSession(session_unowned2_.release(), &response);
 666   EXPECT_EQ(protocol::SessionManager::ACCEPT, response);
 667
 668   // This will set the backoff.
 669   host_->OnSessionAuthenticating(get_clients_from_host().front());
 670
 671   // This should disconnect client2.
 672   host_->OnSessionAuthenticating(get_clients_from_host().back());
 673
 674   // Verify that the host only has 1 client at this point.
 675   EXPECT_EQ(get_clients_from_host().size(), 1U);
 676
 677   ShutdownHost();
 678   message_loop_.Run();
 679 }
 680
 681 TEST_F(ChromotingHostTest, OnSessionRouteChange) {
 682   std::string channel_name("ChannelName");
 683   protocol::TransportRoute route;
 684
 685   ExpectHostAndSessionManagerStart();
 686   Expectation video_packet_sent = ExpectClientConnected(
 687       0, InvokeWithoutArgs(CreateFunctor(
 688           this, &ChromotingHostTest::ChangeSessionRoute, channel_name, route)));
 689   Expectation route_change =
 690       EXPECT_CALL(host_status_observer_, OnClientRouteChange(
 691           session_jid1_, channel_name, _))
 692       .After(video_packet_sent)
 693       .WillOnce(InvokeWithoutArgs(this, &ChromotingHostTest::ShutdownHost));
 694   ExpectClientDisconnected(0, true, route_change,
 695                            InvokeWithoutArgs(base::DoNothing));
 696   EXPECT_CALL(host_status_observer_, OnShutdown());
 697
 698   host_->Start(xmpp_login_);
 699   SimulateClientConnection(0, true, false);
 700   message_loop_.Run();
 701 }
 702
 703 TEST_F(ChromotingHostTest, DisconnectAllClients) {
 704   ExpectHostAndSessionManagerStart();
 705   Expectation video_packet_sent = ExpectClientConnected(
 706       0, InvokeWithoutArgs(this, &ChromotingHostTest::DisconnectAllClients));
 707   ExpectClientDisconnected(0, true, video_packet_sent,
 708       InvokeWithoutArgs(this, &ChromotingHostTest::ShutdownHost));
 709   EXPECT_CALL(host_status_observer_, OnShutdown());
 710
 711   host_->Start(xmpp_login_);
 712   SimulateClientConnection(0, true, false);
 713   message_loop_.Run();
 714 }
 715
 716 }  // namespace remoting