Refactor MediaStreamManager to never output real device id. It now always output sourceId in the fo…

content/browser/renderer_host/media/media_stream_dispatcher_host_unittest.cc

Index: content/browser/renderer_host/media/media_stream_dispatcher_host_unittest.cc
diff --git a/content/browser/renderer_host/media/media_stream_dispatcher_host_unittest.cc b/content/browser/renderer_host/media/media_stream_dispatcher_host_unittest.cc
index 12f41fb1430fbb236354308394a367a8c02bc193..2fb9f8df130f7b982e9e56793f9fe0be633091f4 100644
--- a/content/browser/renderer_host/media/media_stream_dispatcher_host_unittest.cc
+++ b/content/browser/renderer_host/media/media_stream_dispatcher_host_unittest.cc
@@ -15,12 +15,23 @@
 #include "content/browser/renderer_host/media/media_stream_ui_proxy.h"
 #include "content/common/media/media_stream_messages.h"
 #include "content/common/media/media_stream_options.h"
+#include "content/public/browser/media_device_id.h"
 #include "content/public/test/mock_resource_context.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "content/test/test_content_browser_client.h"
 #include "content/test/test_content_client.h"
 #include "ipc/ipc_message_macros.h"
 #include "media/audio/audio_manager.h"
+#include "media/audio/audio_manager_base.h"
+#if defined(OS_ANDROID)
+#include "media/audio/android/audio_manager_android.h"
+#elif defined(OS_LINUX) || defined(OS_OPENBSD)
+#include "media/audio/linux/audio_manager_linux.h"
+#elif defined(OS_MACOSX)
+#include "media/audio/mac/audio_manager_mac.h"
+#elif defined(OS_WIN)
+#include "media/audio/win/audio_manager_win.h"
+#endif
 #include "media/video/capture/fake_video_capture_device.h"
 #include "net/url_request/url_request_context.h"
 #include "testing/gmock/include/gmock/gmock.h"
@@ -38,6 +49,37 @@ const int kPageRequestId = 7;
 
 namespace content {
 
+#if defined(OS_LINUX) || defined(OS_OPENBSD)
+typedef media::AudioManagerLinux AudioManagerPlatform;
+#elif defined(OS_MACOSX)
+typedef media::AudioManagerMac AudioManagerPlatform;
+#elif defined(OS_WIN)
+typedef media::AudioManagerWin AudioManagerPlatform;
+#elif defined(OS_ANDROID)
+typedef media::AudioManagerAndroid AudioManagerPlatform;
+#endif
+
+// This class mocks the audio manager and overrides the
+// GetAudioInputDeviceNames() method to ensure that we can run our tests on
+// the buildbots. media::AudioManagerBase
+class MockAudioManager : public AudioManagerPlatform {
+ public:
+  MockAudioManager() {}
+  virtual ~MockAudioManager() {}
+
+  virtual void GetAudioInputDeviceNames(
+      media::AudioDeviceNames* device_names) OVERRIDE {
+    DCHECK(device_names->empty());
+    device_names->push_back(media::AudioDeviceName("fake_device_name_1",
+                                                   "fake_device_id_1"));
+    device_names->push_back(media::AudioDeviceName("fake_device_name_2",
+                                                   "fake_device_id_2"));
+  }
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MockAudioManager);
+};
+
+
 class MockMediaStreamDispatcherHost : public MediaStreamDispatcherHost,
                                       public TestContentBrowserClient {
  public:
@@ -61,10 +103,11 @@ class MockMediaStreamDispatcherHost : public MediaStreamDispatcherHost,
   void OnGenerateStream(int render_view_id,
                         int page_request_id,
                         const StreamOptions& components,
+                        const GURL& security_origin,
                         const base::Closure& quit_closure) {
     quit_closures_.push(quit_closure);
     MediaStreamDispatcherHost::OnGenerateStream(
-        render_view_id, page_request_id, components, GURL());
+        render_view_id, page_request_id, components, security_origin);
   }
 
   void OnStopStreamDevice(int render_view_id,
@@ -76,25 +119,28 @@ class MockMediaStreamDispatcherHost : public MediaStreamDispatcherHost,
                     int page_request_id,
                     const std::string& device_id,
                     MediaStreamType type,
+                    const GURL& security_origin,
                     const base::Closure& quit_closure) {
     quit_closures_.push(quit_closure);
     MediaStreamDispatcherHost::OnOpenDevice(
-        render_view_id, page_request_id, device_id, type, GURL());
+        render_view_id, page_request_id, device_id, type, security_origin);
   }
 
-  bool FindExistingRequestedDeviceInfo(const std::string& device_id,
-                                       MediaStreamRequestType request_type,
-                                       StreamDeviceInfo* device_info) {
-    MediaRequestState request_state;
-    return media_stream_manager_->FindExistingRequestedDeviceInfo(
-        kProcessId, kRenderId, request_type, device_id, device_info,
-        &request_state);
+  void OnEnumerateDevices(int render_view_id,
+                          int page_request_id,
+                          MediaStreamType type,
+                          const GURL& security_origin,
+                          const base::Closure& quit_closure) {
+    quit_closures_.push(quit_closure);
+    MediaStreamDispatcherHost::OnEnumerateDevices(
+        render_view_id, page_request_id, type, security_origin);
   }
 
   std::string label_;
   StreamDeviceInfoArray audio_devices_;
   StreamDeviceInfoArray video_devices_;
   StreamDeviceInfo opened_device_;
+  StreamDeviceInfoArray enumerated_devices_;
 
  private:
   virtual ~MockMediaStreamDispatcherHost() {}
@@ -115,6 +161,8 @@ class MockMediaStreamDispatcherHost : public MediaStreamDispatcherHost,
       IPC_MESSAGE_HANDLER(MediaStreamMsg_StopGeneratedStream,
                           OnStopGeneratedStreamFromBrowser)
       IPC_MESSAGE_HANDLER(MediaStreamMsg_DeviceOpened, OnDeviceOpened)
+      IPC_MESSAGE_HANDLER(MediaStreamMsg_DevicesEnumerated,
+                          OnDevicesEnumerated)
       IPC_MESSAGE_UNHANDLED(handled = false)
     IPC_END_MESSAGE_MAP()
     EXPECT_TRUE(handled);
@@ -176,6 +224,17 @@ class MockMediaStreamDispatcherHost : public MediaStreamDispatcherHost,
     opened_device_ = device;
   }
 
+  void OnDevicesEnumerated(const IPC::Message& msg,
+                           int request_id,
+                           const std::string& label,
+                           const StreamDeviceInfoArray& devices) {
+    base::Closure quit_closure = quit_closures_.front();
+    quit_closures_.pop();
+    message_loop_->PostTask(FROM_HERE, base::ResetAndReturn(&quit_closure));
+    label_ = label;
+    enumerated_devices_ = devices;
+  }
+
   scoped_refptr<base::MessageLoopProxy> message_loop_;
 
   std::queue<base::Closure> quit_closures_;
@@ -190,9 +249,10 @@ class MediaStreamDispatcherHostTest : public testing::Test {
  public:
   MediaStreamDispatcherHostTest()
       : old_browser_client_(NULL),
-        thread_bundle_(content::TestBrowserThreadBundle::IO_MAINLOOP) {
+        thread_bundle_(content::TestBrowserThreadBundle::IO_MAINLOOP),
+        origin_("https://test.com") {
     // Create our own MediaStreamManager.
-    audio_manager_.reset(media::AudioManager::Create());
+    audio_manager_.reset(new MockAudioManager());
     media_stream_manager_.reset(new MediaStreamManager(audio_manager_.get()));
     // Make sure we use fake devices to avoid long delays.
     media_stream_manager_->UseFakeDevice();
@@ -207,10 +267,14 @@ class MediaStreamDispatcherHostTest : public testing::Test {
   }
 
   virtual ~MediaStreamDispatcherHostTest() {
-    // Recover the old browser client and content client.
-    SetBrowserClientForTesting(old_browser_client_);
-    content_client_.reset();
-    media_stream_manager_->WillDestroyCurrentMessageLoop();
+  }
+
+  virtual void SetUp() OVERRIDE {
+    media::FakeVideoCaptureDevice::GetDeviceNames(&physical_video_devices_);
+    ASSERT_GT(physical_video_devices_.size(), 0u);
+
+    audio_manager_->GetAudioInputDeviceNames(&physical_audio_devices_);
+    ASSERT_GT(physical_audio_devices_.size(), 0u);
   }
 
   virtual void TearDown() OVERRIDE {
@@ -231,9 +295,28 @@ class MediaStreamDispatcherHostTest : public testing::Test {
                                       int page_request_id,
                                       const StreamOptions& options) {
     base::RunLoop run_loop;
-    host_->OnGenerateStream(render_view_id, page_request_id, options,
+    EXPECT_CALL(*host_.get(), OnStreamGenerated(
+        render_view_id, page_request_id,
+        options.audio_type != MEDIA_NO_SERVICE ? 1 : 0,
+        options.video_type != MEDIA_NO_SERVICE ? 1 : 0));
+    host_->OnGenerateStream(render_view_id, page_request_id, options, origin_,
                             run_loop.QuitClosure());
     run_loop.Run();
+    EXPECT_FALSE(DoesContainRawIds(host_->audio_devices_));
+    EXPECT_FALSE(DoesContainRawIds(host_->video_devices_));
+    EXPECT_TRUE(DoesEveryDeviceMapToRawId(host_->audio_devices_, origin_));
+    EXPECT_TRUE(DoesEveryDeviceMapToRawId(host_->video_devices_, origin_));
+  }
+
+  void GenerateStreamAndWaitForFailure(int render_view_id,
+                                       int page_request_id,
+                                       const StreamOptions& options) {
+      base::RunLoop run_loop;
+      EXPECT_CALL(*host_.get(),
+                  OnStreamGenerationFailed(render_view_id, page_request_id));
+      host_->OnGenerateStream(render_view_id, page_request_id, options, origin_,
+                              run_loop.QuitClosure());
+      run_loop.Run();
   }
 
   void OpenVideoDeviceAndWaitForResult(int render_view_id,
@@ -241,9 +324,92 @@ class MediaStreamDispatcherHostTest : public testing::Test {
                                        const std::string& device_id) {
     base::RunLoop run_loop;
     host_->OnOpenDevice(render_view_id, page_request_id, device_id,
-                        MEDIA_DEVICE_VIDEO_CAPTURE,
+                        MEDIA_DEVICE_VIDEO_CAPTURE, origin_,
                         run_loop.QuitClosure());
     run_loop.Run();
+    EXPECT_FALSE(DoesContainRawIds(host_->video_devices_));
+    EXPECT_TRUE(DoesEveryDeviceMapToRawId(host_->video_devices_, origin_));
+  }
+
+  void StopStreamDeviceAndWait(const std::string& device_id) {
+    EXPECT_TRUE(FindRequestedDeviceInfo(device_id, MEDIA_GENERATE_STREAM,
+                                        NULL));
+    host_->OnStopStreamDevice(kRenderId, device_id);
+    base::RunLoop().RunUntilIdle();
+    EXPECT_FALSE(FindRequestedDeviceInfo(device_id, MEDIA_GENERATE_STREAM,
+                                         NULL));
+  }
+
+  void EnumerateDevicesAndWaitForResult(int render_view_id,
+                                        int page_request_id,
+                                        MediaStreamType type) {
+    base::RunLoop run_loop;
+    host_->OnEnumerateDevices(render_view_id, page_request_id, type, origin_,
+                              run_loop.QuitClosure());
+    run_loop.Run();
+    ASSERT_FALSE(host_->enumerated_devices_.empty());
+    EXPECT_FALSE(DoesContainRawIds(host_->enumerated_devices_));
+    EXPECT_TRUE(DoesEveryDeviceMapToRawId(host_->enumerated_devices_, origin_));
+  }
+
+  bool FindRequestedDeviceInfo(const std::string& device_id,
+                               MediaStreamRequestType request_type,
+                               StreamDeviceInfo* device_info) {
+    return media_stream_manager_->FindRequestedDeviceInfo(device_id,
+                                                          kProcessId,
+                                                          kRenderId,
+                                                          request_type,
+                                                          device_info);
+  }
+
+  bool DoesContainRawIds(const StreamDeviceInfoArray& devices) {
+    for (size_t i = 0; i < devices.size(); i++) {

[tommi (sloooow) - chröme, 2013/10/28 13:48:23]

nit: change i++ to ++i (elsewhere as well)

[perkj_chrome, 2013/10/29 08:52:17]

Done.

+      media::AudioDeviceNames::const_iterator audio_it =
+          physical_audio_devices_.begin();
+      for (; audio_it != physical_audio_devices_.end(); ++audio_it) {
+        if (audio_it->unique_id == devices[i].device.id)
+          return true;
+      }
+      media::VideoCaptureDevice::Names::const_iterator video_it =
+          physical_video_devices_.begin();
+      for (; video_it != physical_video_devices_.end(); ++video_it) {
+        if (video_it->id() == devices[i].device.id)
+          return true;
+      }
+    }
+    return false;
+  }
+
+  bool DoesEveryDeviceMapToRawId(const StreamDeviceInfoArray& devices,
+                                 const GURL& origin) {
+    for (size_t i = 0; i < devices.size(); i++) {
+      bool found_match = false;
+      media::AudioDeviceNames::const_iterator audio_it =
+          physical_audio_devices_.begin();
+      for (; audio_it != physical_audio_devices_.end(); ++audio_it) {
+        if (content::DoesMediaDeviceIDMatchHMAC(
+            origin,
+            devices[i].device.id,
+            audio_it->unique_id)) {
+          EXPECT_FALSE(found_match);
+          found_match = true;
+        }
+      }
+      media::VideoCaptureDevice::Names::const_iterator video_it =
+          physical_video_devices_.begin();
+      for (; video_it != physical_video_devices_.end(); ++video_it) {
+        if (content::DoesMediaDeviceIDMatchHMAC(
+            origin,
+            devices[i].device.id,
+            video_it->id())) {
+          EXPECT_FALSE(found_match);
+          found_match = true;
+        }
+      }
+      if (!found_match)
+        return false;
+    }
+    return true;
   }
 
   scoped_refptr<MockMediaStreamDispatcherHost> host_;
@@ -252,19 +418,31 @@ class MediaStreamDispatcherHostTest : public testing::Test {
   ContentBrowserClient* old_browser_client_;
   scoped_ptr<ContentClient> content_client_;
   content::TestBrowserThreadBundle thread_bundle_;
+  media::AudioDeviceNames physical_audio_devices_;
+  media::VideoCaptureDevice::Names physical_video_devices_;
+  GURL origin_;
 };
 
 TEST_F(MediaStreamDispatcherHostTest, GenerateStreamWithVideoOnly) {
   StreamOptions options(MEDIA_NO_SERVICE, MEDIA_DEVICE_VIDEO_CAPTURE);
 
   SetupFakeUI(true);
-  EXPECT_CALL(*host_.get(), OnStreamGenerated(kRenderId, kPageRequestId, 0, 1));
   GenerateStreamAndWaitForResult(kRenderId, kPageRequestId, options);
 
   EXPECT_EQ(host_->audio_devices_.size(), 0u);
   EXPECT_EQ(host_->video_devices_.size(), 1u);
 }
 
+TEST_F(MediaStreamDispatcherHostTest, GenerateStreamWithAudioOnly) {
+  StreamOptions options(MEDIA_DEVICE_AUDIO_CAPTURE, MEDIA_NO_SERVICE);
+
+  SetupFakeUI(true);
+  GenerateStreamAndWaitForResult(kRenderId, kPageRequestId, options);
+
+  EXPECT_EQ(host_->audio_devices_.size(), 1u);
+  EXPECT_EQ(host_->video_devices_.size(), 0u);
+}
+
 // This test generates two streams with video only using the same render view
 // id. The same capture device  with the same device and session id is expected
 // to be used.
@@ -273,7 +451,6 @@ TEST_F(MediaStreamDispatcherHostTest, GenerateStreamsFromSameRenderId) {
 
   // Generate first stream.
   SetupFakeUI(true);
-  EXPECT_CALL(*host_.get(), OnStreamGenerated(kRenderId, kPageRequestId, 0, 1));
   GenerateStreamAndWaitForResult(kRenderId, kPageRequestId, options);
 
   // Check the latest generated stream.
@@ -285,8 +462,6 @@ TEST_F(MediaStreamDispatcherHostTest, GenerateStreamsFromSameRenderId) {
 
   // Generate second stream.
   SetupFakeUI(true);
-  EXPECT_CALL(*host_.get(),
-              OnStreamGenerated(kRenderId, kPageRequestId + 1, 0, 1));
   GenerateStreamAndWaitForResult(kRenderId, kPageRequestId + 1, options);
 
   // Check the latest generated stream.
@@ -306,7 +481,6 @@ TEST_F(MediaStreamDispatcherHostTest,
 
   // Generate first stream.
   SetupFakeUI(true);
-  EXPECT_CALL(*host_.get(), OnStreamGenerated(kRenderId, kPageRequestId, 0, 1));
   GenerateStreamAndWaitForResult(kRenderId, kPageRequestId, options);
 
   EXPECT_EQ(host_->audio_devices_.size(), 0u);
@@ -335,7 +509,6 @@ TEST_F(MediaStreamDispatcherHostTest, GenerateStreamsDifferentRenderId) {
 
   // Generate first stream.
   SetupFakeUI(true);
-  EXPECT_CALL(*host_.get(), OnStreamGenerated(kRenderId, kPageRequestId, 0, 1));
   GenerateStreamAndWaitForResult(kRenderId, kPageRequestId, options);
 
   // Check the latest generated stream.
@@ -347,8 +520,6 @@ TEST_F(MediaStreamDispatcherHostTest, GenerateStreamsDifferentRenderId) {
 
   // Generate second stream from another render view.
   SetupFakeUI(true);
-  EXPECT_CALL(*host_.get(),
-              OnStreamGenerated(kRenderId+1, kPageRequestId + 1, 0, 1));
   GenerateStreamAndWaitForResult(kRenderId+1, kPageRequestId + 1, options);
 
   // Check the latest generated stream.
@@ -378,41 +549,93 @@ TEST_F(MediaStreamDispatcherHostTest, GenerateStreamsWithoutWaiting) {
 
   base::RunLoop run_loop1;
   base::RunLoop run_loop2;
-  host_->OnGenerateStream(kRenderId, kPageRequestId, options,
+  host_->OnGenerateStream(kRenderId, kPageRequestId, options, origin_,
                           run_loop1.QuitClosure());
-  host_->OnGenerateStream(kRenderId, kPageRequestId + 1, options,
+  host_->OnGenerateStream(kRenderId, kPageRequestId + 1, options, origin_,
                           run_loop2.QuitClosure());
 
   run_loop1.Run();
   run_loop2.Run();
 }
 
+// Test that we can generate streams where a sourceId is specified in the
+// request.
+TEST_F(MediaStreamDispatcherHostTest, GenerateStreamsWithSourceId) {
+  ASSERT_GE(physical_audio_devices_.size(), 1u);
+  ASSERT_GE(physical_video_devices_.size(), 1u);
+
+  media::AudioDeviceNames::const_iterator audio_it =
+      physical_audio_devices_.begin();
+  for (; audio_it != physical_audio_devices_.end(); ++audio_it) {
+    StreamOptions options(MEDIA_DEVICE_AUDIO_CAPTURE,
+                          MEDIA_DEVICE_VIDEO_CAPTURE);
+    options.audio_device_id = content::GetHMACForMediaDeviceID(
+        origin_,
+        audio_it->unique_id);
+    ASSERT_FALSE(options.audio_device_id.empty());
+
+    // Generate first stream.
+    SetupFakeUI(true);
+    GenerateStreamAndWaitForResult(kRenderId, kPageRequestId, options);
+    EXPECT_EQ(host_->audio_devices_[0].device.id, options.audio_device_id);
+  }
+
+  media::VideoCaptureDevice::Names::const_iterator video_it =
+      physical_video_devices_.begin();
+  for (; video_it != physical_video_devices_.end(); ++video_it) {
+    StreamOptions options(MEDIA_DEVICE_AUDIO_CAPTURE,
+                          MEDIA_DEVICE_VIDEO_CAPTURE);
+    options.video_device_id = content::GetHMACForMediaDeviceID(
+            origin_,
+            video_it->id());
+    ASSERT_FALSE(options.video_device_id.empty());
+
+    // Generate first stream.
+    SetupFakeUI(true);
+    GenerateStreamAndWaitForResult(kRenderId, kPageRequestId, options);
+    EXPECT_EQ(host_->video_devices_[0].device.id, options.video_device_id);
+  }
+}
+
+// Test that generating a stream with an invalid video source id fail.
+TEST_F(MediaStreamDispatcherHostTest, GenerateStreamsWithInvalidVideoSourceId) {
+  StreamOptions options(MEDIA_DEVICE_AUDIO_CAPTURE,
+                        MEDIA_DEVICE_VIDEO_CAPTURE);
+  std::string invalid_source_id = "invalid source id";
+  options.video_device_id = invalid_source_id;
+
+  GenerateStreamAndWaitForFailure(kRenderId, kRenderId, options);
+}
+
+// Test that generating a stream with an invalid audio source id fail.
+TEST_F(MediaStreamDispatcherHostTest, GenerateStreamsWithInvalidAudioSourceId) {
+  StreamOptions options(MEDIA_DEVICE_AUDIO_CAPTURE,
+                        MEDIA_DEVICE_VIDEO_CAPTURE);
+  std::string invalid_source_id = "invalid source id";
+  options.audio_device_id = invalid_source_id;
+
+  GenerateStreamAndWaitForFailure(kRenderId, kRenderId, options);
+}
+
 TEST_F(MediaStreamDispatcherHostTest, StopDeviceInStream) {
   StreamOptions options(MEDIA_NO_SERVICE, MEDIA_DEVICE_VIDEO_CAPTURE);
 
   SetupFakeUI(true);
-  EXPECT_CALL(*host_.get(), OnStreamGenerated(kRenderId, kPageRequestId, 0, 1));
   GenerateStreamAndWaitForResult(kRenderId, kPageRequestId, options);
 
   const std::string device_id = host_->video_devices_.front().device.id;
   const int session_id =  host_->video_devices_.front().session_id;
   StreamDeviceInfo video_device_info;
-  EXPECT_TRUE(host_->FindExistingRequestedDeviceInfo(device_id,
-                                                     MEDIA_GENERATE_STREAM,
-                                                     &video_device_info));
+  EXPECT_TRUE(FindRequestedDeviceInfo(device_id, MEDIA_GENERATE_STREAM,
+                                      &video_device_info));
   EXPECT_EQ(video_device_info.device.id, device_id);
   EXPECT_EQ(video_device_info.session_id, session_id);
 
   OpenVideoDeviceAndWaitForResult(kRenderId, kPageRequestId, device_id);
 
-  host_->OnStopStreamDevice(kRenderId, device_id);
+  StopStreamDeviceAndWait(device_id);
 
-  EXPECT_FALSE(host_->FindExistingRequestedDeviceInfo(device_id,
-                                                      MEDIA_GENERATE_STREAM,
-                                                      &video_device_info));
-  EXPECT_TRUE(host_->FindExistingRequestedDeviceInfo(device_id,
-                                                     MEDIA_OPEN_DEVICE,
-                                                     &video_device_info));
+  EXPECT_TRUE(FindRequestedDeviceInfo(device_id, MEDIA_OPEN_DEVICE, NULL));
 }
 
 TEST_F(MediaStreamDispatcherHostTest, CancelPendingStreamsOnChannelClosing) {
@@ -423,7 +646,7 @@ TEST_F(MediaStreamDispatcherHostTest, CancelPendingStreamsOnChannelClosing) {
   // Create multiple GenerateStream requests.
   size_t streams = 5;
   for (size_t i = 1; i <= streams; ++i) {
-    host_->OnGenerateStream(kRenderId, kPageRequestId + i, options,
+    host_->OnGenerateStream(kRenderId, kPageRequestId + i, options, origin_,
                             run_loop.QuitClosure());
   }
 
@@ -439,8 +662,6 @@ TEST_F(MediaStreamDispatcherHostTest, StopGeneratedStreamsOnChannelClosing) {
   size_t generated_streams = 3;
   for (size_t i = 0; i < generated_streams; ++i) {
     SetupFakeUI(true);
-    EXPECT_CALL(*host_.get(),
-                OnStreamGenerated(kRenderId, kPageRequestId + i, 0, 1));
     GenerateStreamAndWaitForResult(kRenderId, kPageRequestId + i, options);
   }
 
@@ -458,9 +679,8 @@ TEST_F(MediaStreamDispatcherHostTest, CloseFromUI) {
       .WillOnce(SaveArg<0>(&close_callback));
   media_stream_manager_->UseFakeUI(stream_ui.PassAs<FakeMediaStreamUIProxy>());
 
-  EXPECT_CALL(*host_.get(), OnStreamGenerated(kRenderId, kPageRequestId, 0, 1));
-  EXPECT_CALL(*host_.get(), OnStopGeneratedStreamFromBrowser(kRenderId));
   GenerateStreamAndWaitForResult(kRenderId, kPageRequestId, options);
+  EXPECT_CALL(*host_.get(), OnStopGeneratedStreamFromBrowser(kRenderId));
 
   EXPECT_EQ(host_->audio_devices_.size(), 0u);
   EXPECT_EQ(host_->video_devices_.size(), 1u);
@@ -470,4 +690,15 @@ TEST_F(MediaStreamDispatcherHostTest, CloseFromUI) {
   base::RunLoop().RunUntilIdle();
 }
 
+TEST_F(MediaStreamDispatcherHostTest, EnumerateAudioDevices) {
+  EnumerateDevicesAndWaitForResult(kRenderId, kPageRequestId,
+                                   MEDIA_DEVICE_AUDIO_CAPTURE);
+}
+
+TEST_F(MediaStreamDispatcherHostTest, EnumerateVideoDevices) {
+  EnumerateDevicesAndWaitForResult(kRenderId, kPageRequestId,
+                                   MEDIA_DEVICE_VIDEO_CAPTURE);
+}
+
+
 };  // namespace content