Migrate MediaDevices.enumerateDevices to Mojo

content/browser/renderer_host/media/media_devices_dispatcher_host_unittest.cc

Index: content/browser/renderer_host/media/media_devices_dispatcher_host_unittest.cc
diff --git a/content/browser/renderer_host/media/media_devices_dispatcher_host_unittest.cc b/content/browser/renderer_host/media/media_devices_dispatcher_host_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..f980126999dd8d3da854b2ed96b2053323ecc6f6
--- /dev/null
+++ b/content/browser/renderer_host/media/media_devices_dispatcher_host_unittest.cc
@@ -0,0 +1,255 @@
+// 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>
+#include <utility>
+#include <vector>
+
+#include "base/bind.h"
+#include "base/command_line.h"
+#include "base/run_loop.h"
+#include "base/threading/thread_task_runner_handle.h"
+#include "content/browser/renderer_host/media/media_stream_manager.h"
+#include "content/browser/renderer_host/media/media_stream_ui_proxy.h"
+#include "content/browser/renderer_host/media/video_capture_manager.h"
+#include "content/public/browser/media_device_id.h"
+#include "content/public/test/mock_resource_context.h"
+#include "content/public/test/test_browser_context.h"
+#include "content/public/test/test_browser_thread_bundle.h"
+#include "media/audio/audio_device_description.h"
+#include "media/audio/mock_audio_manager.h"
+#include "media/base/media_switches.h"
+#include "media/capture/video/fake_video_capture_device_factory.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "url/origin.h"
+
+namespace content {
+
+namespace {
+
+const int kProcessId = 5;
+const int kRenderId = 6;
+
+void PhysicalDevicesEnumerated(base::Closure quit_closure,
+                               MediaDeviceEnumeration* out,
+                               const MediaDeviceEnumeration& enumeration) {
+  *out = enumeration;
+  quit_closure.Run();
+}
+
+}  // 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()->AppendSwitch(
+        switches::kUseFakeDeviceForMediaStream);
+    audio_manager_.reset(
+        new media::MockAudioManager(base::ThreadTaskRunnerHandle::Get()));
+    media_stream_manager_.reset(new MediaStreamManager(audio_manager_.get()));
+
+    MockResourceContext* mock_resource_context =
+        static_cast<MockResourceContext*>(
+            browser_context_.GetResourceContext());
+
+    host_ = base::MakeUnique<MediaDevicesDispatcherHost>(
+        kProcessId, kRenderId, mock_resource_context->GetMediaDeviceIDSalt(),
+        media_stream_manager_.get(), true /* use_fake_ui */);
+  }
+
+  void SetUp() override {
+    base::RunLoop run_loop;
+    MediaDevicesManager::BoolDeviceTypes devices_to_enumerate;
+    devices_to_enumerate[MEDIA_DEVICE_TYPE_AUDIO_INPUT] = true;
+    devices_to_enumerate[MEDIA_DEVICE_TYPE_VIDEO_INPUT] = true;
+    devices_to_enumerate[MEDIA_DEVICE_TYPE_AUDIO_OUTPUT] = true;
+    media_stream_manager_->media_devices_manager()->EnumerateDevices(
+        devices_to_enumerate,
+        base::Bind(&PhysicalDevicesEnumerated, run_loop.QuitClosure(),
+                   &physical_devices_));
+    run_loop.Run();
+
+    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);
+  }
+
+ 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,
+      bool enumerate_audio_output,
+      std::unique_ptr<MediaStreamUIProxy> ui_proxy) {
+    if (ui_proxy)
+      host_->SetFakeUIProxyForTesting(std::move(ui_proxy));
+    base::RunLoop run_loop;
+    host_->EnumerateDevices(
+        enumerate_audio_input, enumerate_video_input, enumerate_audio_output,
+        origin_, base::Bind(&MediaDevicesDispatcherHostTest::DevicesEnumerated,
+                            base::Unretained(this), run_loop.QuitClosure()));
+    run_loop.Run();
+
+    ASSERT_FALSE(enumerated_devices_.empty());
+    if (enumerate_audio_input)
+      EXPECT_FALSE(enumerated_devices_[MEDIA_DEVICE_TYPE_AUDIO_INPUT].empty());
+    if (enumerate_video_input)
+      EXPECT_FALSE(enumerated_devices_[MEDIA_DEVICE_TYPE_VIDEO_INPUT].empty());
+    if (enumerate_audio_output)
+      EXPECT_FALSE(enumerated_devices_[MEDIA_DEVICE_TYPE_AUDIO_OUTPUT].empty());
+
+    EXPECT_FALSE(DoesContainRawIds(enumerated_devices_));
+    EXPECT_TRUE(DoesEveryDeviceMapToRawId(enumerated_devices_, origin_));
+  }
+
+  bool DoesContainRawIds(
+      const std::vector<std::vector<MediaDeviceInfo>>& enumeration) {
+    for (size_t i = 0; i < NUM_MEDIA_DEVICE_TYPES; ++i) {
+      for (const auto& device_info : enumeration[i]) {
+        for (const auto& raw_device_info : physical_devices_[i]) {
+          // Skip default and communications audio devices, whose IDs are not
+          // translated.
+          if (device_info.device_id ==
+                  media::AudioDeviceDescription::kDefaultDeviceId ||
+              device_info.device_id ==
+                  media::AudioDeviceDescription::kCommunicationsDeviceId) {
+            continue;
+          }
+          if (device_info.device_id == raw_device_info.device_id)
+            return true;
+        }
+      }
+    }
+    return false;
+  }
+
+  bool DoesEveryDeviceMapToRawId(
+      const std::vector<std::vector<MediaDeviceInfo>>& enumeration,
+      const url::Origin& origin) {
+    for (size_t i = 0; i < NUM_MEDIA_DEVICE_TYPES; ++i) {
+      for (const auto& device_info : enumeration[i]) {
+        bool found_match = false;
+        for (const auto& raw_device_info : physical_devices_[i]) {
+          if (DoesMediaDeviceIDMatchHMAC(
+                  browser_context_.GetResourceContext()->GetMediaDeviceIDSalt(),
+                  origin, device_info.device_id, raw_device_info.device_id)) {
+            EXPECT_FALSE(found_match);
+            found_match = true;
+          }
+        }
+        if (!found_match)
+          return false;
+      }
+    }
+    return true;
+  }
+
+  // Returns true if all devices have labels, false otherwise.
+  bool DoesContainLabels(
+      const std::vector<std::vector<MediaDeviceInfo>>& enumeration) {
+    for (const auto& device_info_array : enumeration) {
+      for (const auto& device_info : device_info_array) {
+        if (device_info.label.empty())
+          return false;
+      }
+    }
+    return true;
+  }
+
+  // Returns true if no devices have labels, false otherwise.
+  bool DoesNotContainLabels(
+      const std::vector<std::vector<MediaDeviceInfo>>& enumeration) {
+    for (const auto& device_info_array : enumeration) {
+      for (const auto& device_info : device_info_array) {
+        if (!device_info.label.empty())
+          return false;
+      }
+    }
+    return true;
+  }
+
+  std::unique_ptr<MediaDevicesDispatcherHost> host_;
+  std::unique_ptr<MediaStreamManager> media_stream_manager_;
+  content::TestBrowserThreadBundle thread_bundle_;
+  std::unique_ptr<media::AudioManager, media::AudioManagerDeleter>
+      audio_manager_;
+  content::TestBrowserContext browser_context_;
+  MediaDeviceEnumeration physical_devices_;
+  url::Origin origin_;
+
+  std::vector<std::vector<MediaDeviceInfo>> enumerated_devices_;
+};
+
+TEST_F(MediaDevicesDispatcherHostTest, EnumerateAudioInputDevices) {
+  EnumerateDevicesAndWaitForResult(true, false, false, nullptr);
+  EXPECT_TRUE(DoesContainLabels(enumerated_devices_));
+}
+
+TEST_F(MediaDevicesDispatcherHostTest, EnumerateVideoInputDevices) {
+  EnumerateDevicesAndWaitForResult(false, true, false, nullptr);
+  EXPECT_TRUE(DoesContainLabels(enumerated_devices_));
+}
+
+TEST_F(MediaDevicesDispatcherHostTest, EnumerateAudioOutputDevices) {
+  EnumerateDevicesAndWaitForResult(false, false, true, nullptr);
+  EXPECT_TRUE(DoesContainLabels(enumerated_devices_));
+}
+
+TEST_F(MediaDevicesDispatcherHostTest, EnumerateAllDevices) {
+  EnumerateDevicesAndWaitForResult(true, true, true, nullptr);
+  EXPECT_TRUE(DoesContainLabels(enumerated_devices_));
+}
+
+TEST_F(MediaDevicesDispatcherHostTest, EnumerateAudioInputDevicesNoAccess) {
+  std::unique_ptr<FakeMediaStreamUIProxy> fake_ui_proxy =
+      base::MakeUnique<FakeMediaStreamUIProxy>();
+  fake_ui_proxy->SetMicAccess(false);
+  EnumerateDevicesAndWaitForResult(true, false, false,
+                                   std::move(fake_ui_proxy));
+  EXPECT_TRUE(DoesNotContainLabels(enumerated_devices_));
+}
+
+TEST_F(MediaDevicesDispatcherHostTest, EnumerateVideoInputDevicesNoAccess) {
+  std::unique_ptr<FakeMediaStreamUIProxy> fake_ui_proxy =
+      base::MakeUnique<FakeMediaStreamUIProxy>();
+  fake_ui_proxy->SetCameraAccess(false);
+  EnumerateDevicesAndWaitForResult(false, true, false,
+                                   std::move(fake_ui_proxy));
+  EXPECT_TRUE(DoesNotContainLabels(enumerated_devices_));
+}
+
+TEST_F(MediaDevicesDispatcherHostTest, EnumerateAudioOutputDevicesNoAccess) {
+  std::unique_ptr<FakeMediaStreamUIProxy> fake_ui_proxy =
+      base::MakeUnique<FakeMediaStreamUIProxy>();
+  fake_ui_proxy->SetMicAccess(false);
+  EnumerateDevicesAndWaitForResult(false, false, true,
+                                   std::move(fake_ui_proxy));
+  EXPECT_TRUE(DoesNotContainLabels(enumerated_devices_));
+}
+
+TEST_F(MediaDevicesDispatcherHostTest, EnumerateAllDevicesNoAccess) {
+  std::unique_ptr<FakeMediaStreamUIProxy> fake_ui_proxy =
+      base::MakeUnique<FakeMediaStreamUIProxy>();
+  fake_ui_proxy->SetMicAccess(false);
+  fake_ui_proxy->SetCameraAccess(false);
+  EnumerateDevicesAndWaitForResult(true, true, true, std::move(fake_ui_proxy));
+  EXPECT_TRUE(DoesNotContainLabels(enumerated_devices_));
+}
+
+};  // namespace content