1 files changed, 322 insertions, 0 deletions
diff --git a/dom/media/gtest/TestGroupId.cpp b/dom/media/gtest/TestGroupId.cpp
new file mode 100644
index 0000000000..0b3cbfed02
--- /dev/null
+++ b/dom/media/gtest/TestGroupId.cpp
@@ -0,0 +1,322 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "AudioDeviceInfo.h"
+#include "MediaManager.h"
+#include "gmock/gmock.h"
+#include "gtest/gtest-printers.h"
+#include "gtest/gtest.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/UniquePtr.h"
+#include "nsTArray.h"
+#include "webrtc/MediaEngineSource.h"
+
+using ::testing::Return;
+using namespace mozilla;
+
+void PrintTo(const nsString& aValue, ::std::ostream* aStream) {
+  NS_ConvertUTF16toUTF8 str(aValue);
+  (*aStream) << str.get();
+}
+void PrintTo(const nsCString& aValue, ::std::ostream* aStream) {
+  (*aStream) << aValue.get();
+}
+
+class MockMediaEngineSource : public MediaEngineSource {
+ public:
+  MOCK_CONST_METHOD0(GetMediaSource, dom::MediaSourceEnum());
+
+  /* Unused overrides */
+  MOCK_CONST_METHOD0(GetName, nsString());
+  MOCK_CONST_METHOD0(GetUUID, nsCString());
+  MOCK_CONST_METHOD0(GetGroupId, nsString());
+  MOCK_CONST_METHOD1(GetSettings, void(dom::MediaTrackSettings&));
+  MOCK_METHOD4(Allocate,
+               nsresult(const dom::MediaTrackConstraints&,
+                        const MediaEnginePrefs&, uint64_t, const char**));
+  MOCK_METHOD2(SetTrack,
+               void(const RefPtr<MediaTrack>&, const PrincipalHandle&));
+  MOCK_METHOD0(Start, nsresult());
+  MOCK_METHOD3(Reconfigure, nsresult(const dom::MediaTrackConstraints&,
+                                     const MediaEnginePrefs&, const char**));
+  MOCK_METHOD0(Stop, nsresult());
+  MOCK_METHOD0(Deallocate, nsresult());
+};
+
+RefPtr<AudioDeviceInfo> MakeAudioDeviceInfo(const nsString aName) {
+  return MakeRefPtr<AudioDeviceInfo>(
+      nullptr, aName, u"GroupId"_ns, u"Vendor"_ns, AudioDeviceInfo::TYPE_OUTPUT,
+      AudioDeviceInfo::STATE_ENABLED, AudioDeviceInfo::PREF_NONE,
+      AudioDeviceInfo::FMT_F32LE, AudioDeviceInfo::FMT_F32LE, 2u, 44100u,
+      44100u, 44100u, 0, 0);
+}
+
+RefPtr<MediaDevice> MakeCameraDevice(const nsString& aName,
+                                     const nsString& aGroupId) {
+  auto v = MakeRefPtr<MockMediaEngineSource>();
+  EXPECT_CALL(*v, GetMediaSource())
+      .WillRepeatedly(Return(dom::MediaSourceEnum::Camera));
+
+  return MakeRefPtr<MediaDevice>(v, aName, u""_ns, aGroupId, u""_ns);
+}
+
+RefPtr<MediaDevice> MakeMicDevice(const nsString& aName,
+                                  const nsString& aGroupId) {
+  auto a = MakeRefPtr<MockMediaEngineSource>();
+  EXPECT_CALL(*a, GetMediaSource())
+      .WillRepeatedly(Return(dom::MediaSourceEnum::Microphone));
+
+  return MakeRefPtr<MediaDevice>(a, aName, u""_ns, aGroupId, u""_ns);
+}
+
+RefPtr<MediaDevice> MakeSpeakerDevice(const nsString& aName,
+                                      const nsString& aGroupId) {
+  return MakeRefPtr<MediaDevice>(MakeAudioDeviceInfo(aName), u"ID"_ns, aGroupId,
+                                 u"RawID"_ns);
+}
+
+/* Verify that when an audio input device name contains the video input device
+ * name the video device group id is updated to become equal to the audio
+ * device group id. */
+TEST(TestGroupId, MatchInput_PartOfName)
+{
+  MediaManager::MediaDeviceSet devices;
+  MediaManager::MediaDeviceSet audios;
+
+  devices.AppendElement(
+      MakeCameraDevice(u"Vendor Model"_ns, u"Cam-Model-GroupId"_ns));
+
+  auto mic =
+      MakeMicDevice(u"Vendor Model Analog Stereo"_ns, u"Mic-Model-GroupId"_ns);
+  devices.AppendElement(mic);
+  audios.AppendElement(mic);
+
+  MediaManager::GuessVideoDeviceGroupIDs(devices, audios);
+
+  EXPECT_EQ(devices[0]->mGroupID, devices[1]->mGroupID)
+      << "Video group id is the same as audio input group id.";
+}
+
+/* Verify that when an audio input device name is the same as the video input
+ * device name the video device group id is updated to become equal to the audio
+ * device group id. */
+TEST(TestGroupId, MatchInput_FullName)
+{
+  MediaManager::MediaDeviceSet devices;
+  MediaManager::MediaDeviceSet audios;
+
+  devices.AppendElement(
+      MakeCameraDevice(u"Vendor Model"_ns, u"Cam-Model-GroupId"_ns));
+
+  auto mic = MakeMicDevice(u"Vendor Model"_ns, u"Mic-Model-GroupId"_ns);
+  devices.AppendElement(mic);
+  audios.AppendElement(mic);
+
+  MediaManager::GuessVideoDeviceGroupIDs(devices, audios);
+
+  EXPECT_EQ(devices[0]->mGroupID, devices[1]->mGroupID)
+      << "Video group id is the same as audio input group id.";
+}
+
+/* Verify that when an audio input device name does not contain the video input
+ * device name the video device group id does not change. */
+TEST(TestGroupId, NoMatchInput)
+{
+  MediaManager::MediaDeviceSet devices;
+  MediaManager::MediaDeviceSet audios;
+
+  nsString Cam_Model_GroupId = u"Cam-Model-GroupId"_ns;
+  devices.AppendElement(
+      MakeCameraDevice(u"Vendor Model"_ns, Cam_Model_GroupId));
+
+  audios.AppendElement(
+      MakeMicDevice(u"Model Analog Stereo"_ns, u"Mic-Model-GroupId"_ns));
+
+  MediaManager::GuessVideoDeviceGroupIDs(devices, audios);
+
+  EXPECT_EQ(devices[0]->mGroupID, Cam_Model_GroupId)
+      << "Video group id has not been updated.";
+  EXPECT_NE(devices[0]->mGroupID, audios[0]->mGroupID)
+      << "Video group id is different than audio input group id.";
+}
+
+/* Verify that when more that one audio input and more than one audio output
+ * device name contain the video input device name the video device group id
+ * does not change. */
+TEST(TestGroupId, NoMatch_TwoIdenticalDevices)
+{
+  MediaManager::MediaDeviceSet devices;
+  MediaManager::MediaDeviceSet audios;
+
+  nsString Cam_Model_GroupId = u"Cam-Model-GroupId"_ns;
+  devices.AppendElement(
+      MakeCameraDevice(u"Vendor Model"_ns, Cam_Model_GroupId));
+
+  audios.AppendElement(
+      MakeMicDevice(u"Vendor Model Analog Stereo"_ns, u"Mic-Model-GroupId"_ns));
+  audios.AppendElement(
+      MakeMicDevice(u"Vendor Model Analog Stereo"_ns, u"Mic-Model-GroupId"_ns));
+
+  audios.AppendElement(MakeSpeakerDevice(u"Vendor Model Analog Stereo"_ns,
+                                         u"Speaker-Model-GroupId"_ns));
+  audios.AppendElement(MakeSpeakerDevice(u"Vendor Model Analog Stereo"_ns,
+                                         u"Speaker-Model-GroupId"_ns));
+
+  MediaManager::GuessVideoDeviceGroupIDs(devices, audios);
+
+  EXPECT_EQ(devices[0]->mGroupID, Cam_Model_GroupId)
+      << "Video group id has not been updated.";
+  EXPECT_NE(devices[0]->mGroupID, audios[0]->mGroupID)
+      << "Video group id is different from audio input group id.";
+  EXPECT_NE(devices[0]->mGroupID, audios[2]->mGroupID)
+      << "Video group id is different from audio output group id.";
+}
+
+/* Verify that when more that one audio input device name contain the video
+ * input device name the video device group id is not updated by audio input
+ * device group id but it continues looking at audio output devices where it
+ * finds a match so video input group id is updated by audio output group id. */
+TEST(TestGroupId, Match_TwoIdenticalInputsMatchOutput)
+{
+  MediaManager::MediaDeviceSet devices;
+  MediaManager::MediaDeviceSet audios;
+
+  nsString Cam_Model_GroupId = u"Cam-Model-GroupId"_ns;
+  devices.AppendElement(
+      MakeCameraDevice(u"Vendor Model"_ns, Cam_Model_GroupId));
+
+  audios.AppendElement(
+      MakeMicDevice(u"Vendor Model Analog Stereo"_ns, u"Mic-Model-GroupId"_ns));
+  audios.AppendElement(
+      MakeMicDevice(u"Vendor Model Analog Stereo"_ns, u"Mic-Model-GroupId"_ns));
+
+  audios.AppendElement(MakeSpeakerDevice(u"Vendor Model Analog Stereo"_ns,
+                                         u"Speaker-Model-GroupId"_ns));
+
+  MediaManager::GuessVideoDeviceGroupIDs(devices, audios);
+
+  EXPECT_EQ(devices[0]->mGroupID, audios[2]->mGroupID)
+      << "Video group id is the same as audio output group id.";
+}
+
+/* Verify that when more that one audio input and more than one audio output
+ * device names contain the video input device name the video device group id
+ * does not change. */
+TEST(TestGroupId, NoMatch_ThreeIdenticalDevices)
+{
+  MediaManager::MediaDeviceSet devices;
+  MediaManager::MediaDeviceSet audios;
+
+  nsString Cam_Model_GroupId = u"Cam-Model-GroupId"_ns;
+  devices.AppendElement(
+      MakeCameraDevice(u"Vendor Model"_ns, Cam_Model_GroupId));
+
+  audios.AppendElement(
+      MakeMicDevice(u"Vendor Model Analog Stereo"_ns, u"Mic-Model-GroupId"_ns));
+  audios.AppendElement(
+      MakeMicDevice(u"Vendor Model Analog Stereo"_ns, u"Mic-Model-GroupId"_ns));
+  audios.AppendElement(
+      MakeMicDevice(u"Vendor Model Analog Stereo"_ns, u"Mic-Model-GroupId"_ns));
+
+  audios.AppendElement(MakeSpeakerDevice(u"Vendor Model Analog Stereo"_ns,
+                                         u"Speaker-Model-GroupId"_ns));
+  audios.AppendElement(MakeSpeakerDevice(u"Vendor Model Analog Stereo"_ns,
+                                         u"Speaker-Model-GroupId"_ns));
+  audios.AppendElement(MakeSpeakerDevice(u"Vendor Model Analog Stereo"_ns,
+                                         u"Speaker-Model-GroupId"_ns));
+
+  MediaManager::GuessVideoDeviceGroupIDs(devices, audios);
+
+  EXPECT_EQ(devices[0]->mGroupID, Cam_Model_GroupId)
+      << "Video group id has not been updated.";
+  EXPECT_NE(devices[0]->mGroupID, audios[0]->mGroupID)
+      << "Video group id is different from audio input group id.";
+  EXPECT_NE(devices[0]->mGroupID, audios[3]->mGroupID)
+      << "Video group id is different from audio output group id.";
+}
+
+/* Verify that when an audio output device name contains the video input device
+ * name the video device group id is updated to become equal to the audio
+ * device group id. */
+TEST(TestGroupId, MatchOutput)
+{
+  MediaManager::MediaDeviceSet devices;
+  MediaManager::MediaDeviceSet audios;
+
+  devices.AppendElement(
+      MakeCameraDevice(u"Vendor Model"_ns, u"Cam-Model-GroupId"_ns));
+
+  audios.AppendElement(
+      MakeMicDevice(u"Mic Analog Stereo"_ns, u"Mic-Model-GroupId"_ns));
+
+  audios.AppendElement(MakeSpeakerDevice(u"Vendor Model Analog Stereo"_ns,
+                                         u"Speaker-Model-GroupId"_ns));
+
+  MediaManager::GuessVideoDeviceGroupIDs(devices, audios);
+
+  EXPECT_EQ(devices[0]->mGroupID, audios[1]->mGroupID)
+      << "Video group id is the same as audio output group id.";
+}
+
+/* Verify that when an audio input device name is the same as audio output
+ * device and video input device name the video device group id is updated to
+ * become equal to the audio input device group id. */
+TEST(TestGroupId, InputOutputSameName)
+{
+  MediaManager::MediaDeviceSet devices;
+  MediaManager::MediaDeviceSet audios;
+
+  devices.AppendElement(
+      MakeCameraDevice(u"Vendor Model"_ns, u"Cam-Model-GroupId"_ns));
+
+  audios.AppendElement(
+      MakeMicDevice(u"Vendor Model"_ns, u"Mic-Model-GroupId"_ns));
+
+  audios.AppendElement(
+      MakeSpeakerDevice(u"Vendor Model"_ns, u"Speaker-Model-GroupId"_ns));
+
+  MediaManager::GuessVideoDeviceGroupIDs(devices, audios);
+
+  EXPECT_EQ(devices[0]->mGroupID, audios[0]->mGroupID)
+      << "Video input group id is the same as audio input group id.";
+}
+
+/* Verify that when an audio input device name contains the video input device
+ * and the audio input group id is an empty string, the video device group id
+ * is updated to become equal to the audio device group id. */
+TEST(TestGroupId, InputEmptyGroupId)
+{
+  MediaManager::MediaDeviceSet devices;
+  MediaManager::MediaDeviceSet audios;
+
+  devices.AppendElement(
+      MakeCameraDevice(u"Vendor Model"_ns, u"Cam-Model-GroupId"_ns));
+
+  audios.AppendElement(MakeMicDevice(u"Vendor Model"_ns, u""_ns));
+
+  MediaManager::GuessVideoDeviceGroupIDs(devices, audios);
+
+  EXPECT_EQ(devices[0]->mGroupID, audios[0]->mGroupID)
+      << "Video input group id is the same as audio input group id.";
+}
+
+/* Verify that when an audio output device name contains the video input device
+ * and the audio output group id is an empty string, the video device group id
+ * is updated to become equal to the audio output device group id. */
+TEST(TestGroupId, OutputEmptyGroupId)
+{
+  MediaManager::MediaDeviceSet devices;
+  MediaManager::MediaDeviceSet audios;
+
+  devices.AppendElement(
+      MakeCameraDevice(u"Vendor Model"_ns, u"Cam-Model-GroupId"_ns));
+
+  audios.AppendElement(MakeSpeakerDevice(u"Vendor Model"_ns, u""_ns));
+
+  MediaManager::GuessVideoDeviceGroupIDs(devices, audios);
+
+  EXPECT_EQ(devices[0]->mGroupID, audios[0]->mGroupID)
+      << "Video input group id is the same as audio output group id.";
+}