remoting/host/desktop_process_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 "remoting/host/desktop_process.h"
   6
   7 #include "base/bind.h"
   8 #include "base/bind_helpers.h"
   9 #include "base/location.h"
  10 #include "base/memory/ref_counted.h"
  11 #include "base/message_loop/message_loop.h"
  12 #include "base/run_loop.h"
  13 #include "base/single_thread_task_runner.h"
  14 #include "ipc/ipc_channel.h"
  15 #include "ipc/ipc_channel_proxy.h"
  16 #include "ipc/ipc_listener.h"
  17 #include "ipc/ipc_message.h"
  18 #include "remoting/base/auto_thread.h"
  19 #include "remoting/base/auto_thread_task_runner.h"
  20 #include "remoting/host/chromoting_messages.h"
  21 #include "remoting/host/desktop_process.h"
  22 #include "remoting/host/fake_desktop_capturer.h"
  23 #include "remoting/host/host_exit_codes.h"
  24 #include "remoting/host/host_mock_objects.h"
  25 #include "remoting/host/screen_resolution.h"
  26 #include "remoting/protocol/protocol_mock_objects.h"
  27 #include "testing/gmock/include/gmock/gmock.h"
  28 #include "testing/gmock_mutant.h"
  29 #include "testing/gtest/include/gtest/gtest.h"
  30
  31 using testing::_;
  32 using testing::AnyNumber;
  33 using testing::AtMost;
  34 using testing::InSequence;
  35 using testing::Return;
  36
  37 namespace remoting {
  38
  39 namespace {
  40
  41 class MockDaemonListener : public IPC::Listener {
  42  public:
  43   MockDaemonListener() {}
  44   ~MockDaemonListener() override {}
  45
  46   bool OnMessageReceived(const IPC::Message& message) override;
  47
  48   MOCK_METHOD1(OnDesktopAttached, void(IPC::PlatformFileForTransit));
  49   MOCK_METHOD1(OnChannelConnected, void(int32));
  50   MOCK_METHOD0(OnChannelError, void());
  51
  52  private:
  53   DISALLOW_COPY_AND_ASSIGN(MockDaemonListener);
  54 };
  55
  56 class MockNetworkListener : public IPC::Listener {
  57  public:
  58   MockNetworkListener() {}
  59   ~MockNetworkListener() override {}
  60
  61   bool OnMessageReceived(const IPC::Message& message) override;
  62
  63   MOCK_METHOD1(OnChannelConnected, void(int32));
  64   MOCK_METHOD0(OnChannelError, void());
  65
  66   MOCK_METHOD0(OnDesktopEnvironmentCreated, void());
  67
  68  private:
  69   DISALLOW_COPY_AND_ASSIGN(MockNetworkListener);
  70 };
  71
  72 bool MockDaemonListener::OnMessageReceived(const IPC::Message& message) {
  73   bool handled = true;
  74   IPC_BEGIN_MESSAGE_MAP(MockDaemonListener, message)
  75     IPC_MESSAGE_HANDLER(ChromotingDesktopDaemonMsg_DesktopAttached,
  76                         OnDesktopAttached)
  77     IPC_MESSAGE_UNHANDLED(handled = false)
  78   IPC_END_MESSAGE_MAP()
  79
  80   EXPECT_TRUE(handled);
  81   return handled;
  82 }
  83
  84 bool MockNetworkListener::OnMessageReceived(const IPC::Message& message) {
  85   bool handled = true;
  86
  87   // TODO(alexeypa): handle received messages here.
  88
  89   EXPECT_TRUE(handled);
  90   return handled;
  91 }
  92
  93 }  // namespace
  94
  95 class DesktopProcessTest : public testing::Test {
  96  public:
  97   DesktopProcessTest();
  98   ~DesktopProcessTest() override;
  99
 100   // testing::Test overrides
 101   void SetUp() override;
 102   void TearDown() override;
 103
 104   // MockDaemonListener mocks
 105   void ConnectNetworkChannel(IPC::PlatformFileForTransit desktop_process);
 106   void OnDesktopAttached(IPC::PlatformFileForTransit desktop_process);
 107
 108   // Creates a DesktopEnvironment with a fake webrtc::DesktopCapturer, to mock
 109   // DesktopEnvironmentFactory::Create().
 110   DesktopEnvironment* CreateDesktopEnvironment();
 111
 112   // Creates a dummy InputInjector, to mock
 113   // DesktopEnvironment::CreateInputInjector().
 114   InputInjector* CreateInputInjector();
 115
 116   // Creates a fake webrtc::DesktopCapturer, to mock
 117   // DesktopEnvironment::CreateVideoCapturer().
 118   webrtc::DesktopCapturer* CreateVideoCapturer();
 119
 120   // Disconnects the daemon-to-desktop channel causing the desktop process to
 121   // exit.
 122   void DisconnectChannels();
 123
 124   // Posts DisconnectChannels() to |message_loop_|.
 125   void PostDisconnectChannels();
 126
 127   // Runs the desktop process code in a separate thread.
 128   void RunDesktopProcess();
 129
 130   // Creates the desktop process and sends a crash request to it.
 131   void RunDeathTest();
 132
 133   // Sends a crash request to the desktop process.
 134   void SendCrashRequest();
 135
 136   // Requests the desktop process to start the desktop session agent.
 137   void SendStartSessionAgent();
 138
 139  protected:
 140   // The daemon's end of the daemon-to-desktop channel.
 141   scoped_ptr<IPC::ChannelProxy> daemon_channel_;
 142
 143   // Delegate that is passed to |daemon_channel_|.
 144   MockDaemonListener daemon_listener_;
 145
 146   // Runs the daemon's end of the channel.
 147   base::MessageLoopForUI message_loop_;
 148
 149   scoped_refptr<AutoThreadTaskRunner> io_task_runner_;
 150
 151   // The network's end of the network-to-desktop channel.
 152   scoped_ptr<IPC::ChannelProxy> network_channel_;
 153
 154   // Delegate that is passed to |network_channel_|.
 155   MockNetworkListener network_listener_;
 156 };
 157
 158 DesktopProcessTest::DesktopProcessTest() {}
 159
 160 DesktopProcessTest::~DesktopProcessTest() {
 161 }
 162
 163 void DesktopProcessTest::SetUp() {
 164 }
 165
 166 void DesktopProcessTest::TearDown() {
 167 }
 168
 169 void DesktopProcessTest::ConnectNetworkChannel(
 170     IPC::PlatformFileForTransit desktop_process) {
 171
 172 #if defined(OS_POSIX)
 173   IPC::ChannelHandle channel_handle(std::string(), desktop_process);
 174 #elif defined(OS_WIN)
 175   IPC::ChannelHandle channel_handle(desktop_process);
 176 #endif  // defined(OS_WIN)
 177
 178   network_channel_ = IPC::ChannelProxy::Create(channel_handle,
 179                                                IPC::Channel::MODE_CLIENT,
 180                                                &network_listener_,
 181                                                io_task_runner_.get());
 182 }
 183
 184 void DesktopProcessTest::OnDesktopAttached(
 185     IPC::PlatformFileForTransit desktop_process) {
 186 #if defined(OS_POSIX)
 187     DCHECK(desktop_process.auto_close);
 188
 189     base::File closer(IPC::PlatformFileForTransitToFile(desktop_process));
 190 #endif  // defined(OS_POSIX)
 191 }
 192
 193 DesktopEnvironment* DesktopProcessTest::CreateDesktopEnvironment() {
 194   MockDesktopEnvironment* desktop_environment = new MockDesktopEnvironment();
 195   EXPECT_CALL(*desktop_environment, CreateAudioCapturerPtr())
 196       .Times(0);
 197   EXPECT_CALL(*desktop_environment, CreateInputInjectorPtr())
 198       .Times(AtMost(1))
 199       .WillOnce(Invoke(this, &DesktopProcessTest::CreateInputInjector));
 200   EXPECT_CALL(*desktop_environment, CreateScreenControlsPtr())
 201       .Times(AtMost(1));
 202   EXPECT_CALL(*desktop_environment, CreateVideoCapturerPtr())
 203       .Times(AtMost(1))
 204       .WillOnce(Invoke(this, &DesktopProcessTest::CreateVideoCapturer));
 205   EXPECT_CALL(*desktop_environment, GetCapabilities())
 206       .Times(AtMost(1));
 207   EXPECT_CALL(*desktop_environment, SetCapabilities(_))
 208       .Times(AtMost(1));
 209
 210   // Notify the test that the desktop environment has been created.
 211   network_listener_.OnDesktopEnvironmentCreated();
 212   return desktop_environment;
 213 }
 214
 215 InputInjector* DesktopProcessTest::CreateInputInjector() {
 216   MockInputInjector* input_injector = new MockInputInjector();
 217   EXPECT_CALL(*input_injector, StartPtr(_));
 218   return input_injector;
 219 }
 220
 221 webrtc::DesktopCapturer* DesktopProcessTest::CreateVideoCapturer() {
 222   return new FakeDesktopCapturer();
 223 }
 224
 225 void DesktopProcessTest::DisconnectChannels() {
 226   daemon_channel_.reset();
 227   network_channel_.reset();
 228   io_task_runner_ = nullptr;
 229 }
 230
 231 void DesktopProcessTest::PostDisconnectChannels() {
 232   message_loop_.PostTask(FROM_HERE, base::Bind(
 233       &DesktopProcessTest::DisconnectChannels, base::Unretained(this)));
 234 }
 235
 236 void DesktopProcessTest::RunDesktopProcess() {
 237   base::RunLoop run_loop;
 238   base::Closure quit_ui_task_runner = base::Bind(
 239       base::IgnoreResult(&base::SingleThreadTaskRunner::PostTask),
 240       message_loop_.message_loop_proxy(),
 241       FROM_HERE, run_loop.QuitClosure());
 242   scoped_refptr<AutoThreadTaskRunner> ui_task_runner = new AutoThreadTaskRunner(
 243       message_loop_.message_loop_proxy(), quit_ui_task_runner);
 244
 245   io_task_runner_ = AutoThread::CreateWithType(
 246       "IPC thread", ui_task_runner, base::MessageLoop::TYPE_IO);
 247
 248   std::string channel_name = IPC::Channel::GenerateUniqueRandomChannelID();
 249   daemon_channel_ = IPC::ChannelProxy::Create(IPC::ChannelHandle(channel_name),
 250                                               IPC::Channel::MODE_SERVER,
 251                                               &daemon_listener_,
 252                                               io_task_runner_.get());
 253
 254   scoped_ptr<MockDesktopEnvironmentFactory> desktop_environment_factory(
 255       new MockDesktopEnvironmentFactory());
 256   EXPECT_CALL(*desktop_environment_factory, CreatePtr())
 257       .Times(AnyNumber())
 258       .WillRepeatedly(Invoke(this,
 259                              &DesktopProcessTest::CreateDesktopEnvironment));
 260   EXPECT_CALL(*desktop_environment_factory, SupportsAudioCapture())
 261       .Times(AnyNumber())
 262       .WillRepeatedly(Return(false));
 263
 264   DesktopProcess desktop_process(ui_task_runner, io_task_runner_, channel_name);
 265   EXPECT_TRUE(desktop_process.Start(desktop_environment_factory.Pass()));
 266
 267   ui_task_runner = nullptr;
 268   run_loop.Run();
 269 }
 270
 271 void DesktopProcessTest::RunDeathTest() {
 272   InSequence s;
 273   EXPECT_CALL(daemon_listener_, OnChannelConnected(_));
 274   EXPECT_CALL(daemon_listener_, OnDesktopAttached(_))
 275       .WillOnce(DoAll(
 276           Invoke(this, &DesktopProcessTest::OnDesktopAttached),
 277           InvokeWithoutArgs(this, &DesktopProcessTest::SendCrashRequest)));
 278
 279   RunDesktopProcess();
 280 }
 281
 282 void DesktopProcessTest::SendCrashRequest() {
 283   tracked_objects::Location location = FROM_HERE;
 284   daemon_channel_->Send(new ChromotingDaemonMsg_Crash(
 285       location.function_name(), location.file_name(), location.line_number()));
 286 }
 287
 288 void DesktopProcessTest::SendStartSessionAgent() {
 289   network_channel_->Send(new ChromotingNetworkDesktopMsg_StartSessionAgent(
 290       "user@domain/rest-of-jid", ScreenResolution(), false));
 291 }
 292
 293 // Launches the desktop process and waits when it connects back.
 294 TEST_F(DesktopProcessTest, Basic) {
 295   InSequence s;
 296   EXPECT_CALL(daemon_listener_, OnChannelConnected(_));
 297   EXPECT_CALL(daemon_listener_, OnDesktopAttached(_))
 298       .WillOnce(DoAll(
 299           Invoke(this, &DesktopProcessTest::OnDesktopAttached),
 300           InvokeWithoutArgs(this, &DesktopProcessTest::DisconnectChannels)));
 301
 302   RunDesktopProcess();
 303 }
 304
 305 // Launches the desktop process and waits when it connects back.
 306 TEST_F(DesktopProcessTest, ConnectNetworkChannel) {
 307   InSequence s;
 308   EXPECT_CALL(daemon_listener_, OnChannelConnected(_));
 309   EXPECT_CALL(daemon_listener_, OnDesktopAttached(_))
 310       .WillOnce(Invoke(this, &DesktopProcessTest::ConnectNetworkChannel));
 311   EXPECT_CALL(network_listener_, OnChannelConnected(_))
 312       .WillOnce(InvokeWithoutArgs(
 313           this, &DesktopProcessTest::DisconnectChannels));
 314
 315   RunDesktopProcess();
 316 }
 317
 318 // Launches the desktop process, waits when it connects back and starts
 319 // the desktop session agent.
 320 TEST_F(DesktopProcessTest, StartSessionAgent) {
 321   {
 322     InSequence s;
 323     EXPECT_CALL(daemon_listener_, OnChannelConnected(_));
 324     EXPECT_CALL(daemon_listener_, OnDesktopAttached(_))
 325         .WillOnce(Invoke(this, &DesktopProcessTest::ConnectNetworkChannel));
 326     EXPECT_CALL(network_listener_, OnChannelConnected(_))
 327         .WillOnce(InvokeWithoutArgs(
 328             this, &DesktopProcessTest::SendStartSessionAgent));
 329   }
 330
 331   EXPECT_CALL(network_listener_, OnDesktopEnvironmentCreated())
 332       .WillOnce(InvokeWithoutArgs(
 333           this, &DesktopProcessTest::PostDisconnectChannels));
 334
 335   RunDesktopProcess();
 336 }
 337
 338 // Run the desktop process and ask it to crash.
 339 TEST_F(DesktopProcessTest, DeathTest) {
 340   testing::GTEST_FLAG(death_test_style) = "threadsafe";
 341
 342   EXPECT_DEATH(RunDeathTest(), "");
 343 }
 344
 345 }  // namespace remoting