Add ability to retrieve capabilities for audio input devices to MediaDevicesDispatcherHost.

content/browser/renderer_host/media/media_devices_dispatcher_host_unittest.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/renderer_host/media/media_devices_dispatcher_host.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <queue>
@@ skipping 28 matching lines @@
 using testing::InvokeWithoutArgs;
 
 namespace content {
 
 namespace {
 
 const int kProcessId = 5;
 const int kRenderId = 6;
 const size_t kNumFakeVideoDevices = 3;
 const char kDefaultVideoDeviceID[] = "/dev/video2";
+const char kDefaultAudioDeviceID[] = "fake_audio_input_2";
 
 void PhysicalDevicesEnumerated(base::Closure quit_closure,
                                MediaDeviceEnumeration* out,
                                const MediaDeviceEnumeration& enumeration) {
   *out = enumeration;
   quit_closure.Run();
 }
 
 class MockMediaDevicesListener : public ::mojom::MediaDevicesListener {
  public:
@@ skipping 13 matching lines @@
 }  // namespace
 
 class MediaDevicesDispatcherHostTest : public testing::Test {
  public:
   MediaDevicesDispatcherHostTest()
       : thread_bundle_(content::TestBrowserThreadBundle::IO_MAINLOOP),
         origin_(GURL("https://test.com")) {
     // Make sure we use fake devices to avoid long delays.
     base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
         switches::kUseFakeDeviceForMediaStream,
-        base::StringPrintf("device-count=%zu, video-input-default-id=%s",
-                           kNumFakeVideoDevices, kDefaultVideoDeviceID));
+        base::StringPrintf("device-count=%zu, video-input-default-id=%s, "
+                           "audio-input-default-id=%s",
+                           kNumFakeVideoDevices, kDefaultVideoDeviceID,
+                           kDefaultAudioDeviceID));
     audio_manager_.reset(
         new media::MockAudioManager(base::ThreadTaskRunnerHandle::Get()));
     audio_system_ = media::AudioSystemImpl::Create(audio_manager_.get());
     media_stream_manager_ =
         base::MakeUnique<MediaStreamManager>(audio_system_.get());
 
     host_ = base::MakeUnique<MediaDevicesDispatcherHost>(
         kProcessId, kRenderId, browser_context_.GetMediaDeviceIDSalt(),
         media_stream_manager_.get());
   }
@@ skipping 13 matching lines @@
     ASSERT_GT(physical_devices_[MEDIA_DEVICE_TYPE_AUDIO_INPUT].size(), 0u);
     ASSERT_GT(physical_devices_[MEDIA_DEVICE_TYPE_VIDEO_INPUT].size(), 0u);
     ASSERT_GT(physical_devices_[MEDIA_DEVICE_TYPE_AUDIO_OUTPUT].size(), 0u);
   }
 
   MOCK_METHOD1(UniqueOriginCallback,
                void(const std::vector<std::vector<MediaDeviceInfo>>&));
   MOCK_METHOD1(ValidOriginCallback,
                void(const std::vector<std::vector<MediaDeviceInfo>>&));
   MOCK_METHOD0(MockVideoInputCapabilitiesCallback, void());
+  MOCK_METHOD0(MockAudioInputCapabilitiesCallback, void());
 
   void VideoInputCapabilitiesCallback(
       std::vector<::mojom::VideoInputDeviceCapabilitiesPtr> capabilities) {
     MockVideoInputCapabilitiesCallback();
     std::string expected_first_device_id =
         GetHMACForMediaDeviceID(browser_context_.GetMediaDeviceIDSalt(),
                                 origin_, kDefaultVideoDeviceID);
     EXPECT_EQ(kNumFakeVideoDevices, capabilities.size());
     EXPECT_EQ(expected_first_device_id, capabilities[0]->device_id);
     for (const auto& capability : capabilities) {
       EXPECT_GT(capability->formats.size(), 1u);
       EXPECT_GT(capability->formats[0].frame_size.width(), 1);
       EXPECT_GT(capability->formats[0].frame_size.height(), 1);
       EXPECT_GT(capability->formats[0].frame_rate, 1);
       EXPECT_GT(capability->formats[1].frame_size.width(), 1);
       EXPECT_GT(capability->formats[1].frame_size.height(), 1);
       EXPECT_GT(capability->formats[1].frame_rate, 1);
     }
   }
 
   void VideoInputCapabilitiesUniqueOriginCallback(
       std::vector<::mojom::VideoInputDeviceCapabilitiesPtr> capabilities) {
     MockVideoInputCapabilitiesCallback();
     EXPECT_EQ(0U, capabilities.size());
   }
 
+  void AudioInputCapabilitiesCallback(
+      std::vector<::mojom::AudioInputDeviceCapabilitiesPtr> capabilities) {
+    MockAudioInputCapabilitiesCallback();
+    // MediaDevicesManager always returns 3 fake audio input devices.
+    const size_t kNumExpectedEntries = 3;
+    EXPECT_EQ(kNumExpectedEntries, capabilities.size());
+    std::string expected_first_device_id =
+        GetHMACForMediaDeviceID(browser_context_.GetMediaDeviceIDSalt(),
+                                origin_, kDefaultAudioDeviceID);
+    EXPECT_EQ(expected_first_device_id, capabilities[0]->device_id);
+    for (const auto& capability : capabilities)
+      EXPECT_TRUE(capability->parameters.IsValid());
+  }
+
  protected:
   void DevicesEnumerated(
       const base::Closure& closure,
       const std::vector<std::vector<MediaDeviceInfo>>& devices) {
     enumerated_devices_ = devices;
     closure.Run();
   }
 
   void EnumerateDevicesAndWaitForResult(bool enumerate_audio_input,
                                         bool enumerate_video_input,
@@ skipping 227 matching lines @@
   EXPECT_CALL(*this, MockVideoInputCapabilitiesCallback())
       .WillOnce(InvokeWithoutArgs([&run_loop]() { run_loop.Quit(); }));
   host_->GetVideoInputCapabilities(
       origin_,
       base::Bind(
           &MediaDevicesDispatcherHostTest::VideoInputCapabilitiesCallback,
           base::Unretained(this)));
   run_loop.Run();
 }
 
+TEST_F(MediaDevicesDispatcherHostTest, GetAudioInputCapabilities) {
+  base::RunLoop run_loop;
+  EXPECT_CALL(*this, MockAudioInputCapabilitiesCallback())
+      .WillOnce(InvokeWithoutArgs([&run_loop]() { run_loop.Quit(); }));
+  host_->GetAudioInputCapabilities(
+      origin_,
+      base::Bind(
+          &MediaDevicesDispatcherHostTest::AudioInputCapabilitiesCallback,
+          base::Unretained(this)));
+  run_loop.Run();
+}
+
 TEST_F(MediaDevicesDispatcherHostTest, GetVideoInputCapabilitiesUniqueOrigin) {
   base::RunLoop run_loop;
   EXPECT_CALL(*this, MockVideoInputCapabilitiesCallback())
       .WillOnce(InvokeWithoutArgs([&run_loop]() { run_loop.Quit(); }));
   host_->GetVideoInputCapabilities(
       url::Origin(), base::Bind(&MediaDevicesDispatcherHostTest::
                                     VideoInputCapabilitiesUniqueOriginCallback,
                                 base::Unretained(this)));
   run_loop.Run();
 }
 
 };  // namespace content