1 files changed, 302 insertions, 0 deletions
diff --git a/dom/media/gtest/TestGroupId.cpp b/dom/media/gtest/TestGroupId.cpp
new file mode 100644
index 0000000000..efd0bae20a
--- /dev/null
+++ b/dom/media/gtest/TestGroupId.cpp
@@ -0,0 +1,302 @@
+/* -*- 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/MediaEngineFake.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();
+}
+
+RefPtr<AudioDeviceInfo> MakeAudioDeviceInfo(const nsAString& aName,
+                                            const nsAString& aGroupId,
+                                            uint16_t aType) {
+  return MakeRefPtr<AudioDeviceInfo>(
+      nullptr, aName, aGroupId, u"Vendor"_ns, aType,
+      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) {
+  return new MediaDevice(new MediaEngineFake(), dom::MediaSourceEnum::Camera,
+                         aName, u""_ns, aGroupId, MediaDevice::IsScary::No,
+                         MediaDevice::OsPromptable::No);
+}
+
+RefPtr<MediaDevice> MakeMicDevice(const nsString& aName,
+                                  const nsString& aGroupId) {
+  return new MediaDevice(
+      new MediaEngineFake(),
+      MakeAudioDeviceInfo(aName, aGroupId, AudioDeviceInfo::TYPE_INPUT),
+      u""_ns);
+}
+
+RefPtr<MediaDevice> MakeSpeakerDevice(const nsString& aName,
+                                      const nsString& aGroupId) {
+  return new MediaDevice(
+      new MediaEngineFake(),
+      MakeAudioDeviceInfo(aName, aGroupId, AudioDeviceInfo::TYPE_OUTPUT),
+      u"ID"_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]->mRawGroupID, devices[1]->mRawGroupID)
+      << "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]->mRawGroupID, devices[1]->mRawGroupID)
+      << "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]->mRawGroupID, Cam_Model_GroupId)
+      << "Video group id has not been updated.";
+  EXPECT_NE(devices[0]->mRawGroupID, audios[0]->mRawGroupID)
+      << "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]->mRawGroupID, Cam_Model_GroupId)
+      << "Video group id has not been updated.";
+  EXPECT_NE(devices[0]->mRawGroupID, audios[0]->mRawGroupID)
+      << "Video group id is different from audio input group id.";
+  EXPECT_NE(devices[0]->mRawGroupID, audios[2]->mRawGroupID)
+      << "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]->mRawGroupID, audios[2]->mRawGroupID)
+      << "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]->mRawGroupID, Cam_Model_GroupId)
+      << "Video group id has not been updated.";
+  EXPECT_NE(devices[0]->mRawGroupID, audios[0]->mRawGroupID)
+      << "Video group id is different from audio input group id.";
+  EXPECT_NE(devices[0]->mRawGroupID, audios[3]->mRawGroupID)
+      << "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]->mRawGroupID, audios[1]->mRawGroupID)
+      << "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]->mRawGroupID, audios[0]->mRawGroupID)
+      << "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]->mRawGroupID, audios[0]->mRawGroupID)
+      << "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]->mRawGroupID, audios[0]->mRawGroupID)
+      << "Video input group id is the same as audio output group id.";
+}