Media Remoting: Add RemotingController.

media/remoting/remoting_controller_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 "media/remoting/remoting_controller.h"
+
+#include "base/callback.h"
+#include "base/message_loop/message_loop.h"
+#include "base/run_loop.h"
+#include "media/base/audio_decoder_config.h"
+#include "media/base/limits.h"
+#include "media/base/media_util.h"
+#include "media/base/video_decoder_config.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace media {
+namespace {
+
+constexpr gfx::Size kCodedSize(320, 240);
+constexpr gfx::Rect kVisibleRect(320, 240);
+constexpr gfx::Size kNaturalSize(320, 240);
+
+PipelineMetadata defaultMetadata() {
+  PipelineMetadata data;
+  data.has_audio = true;
+  data.has_video = true;
+  data.video_decoder_config = VideoDecoderConfig(
+      kCodecVP8, VP8PROFILE_ANY, VideoPixelFormat::PIXEL_FORMAT_I420,
+      ColorSpace::COLOR_SPACE_SD_REC601, kCodedSize, kVisibleRect, kNaturalSize,
+      EmptyExtraData(), Unencrypted());
+  data.audio_decoder_config = AudioDecoderConfig(
+      kCodecOpus, SampleFormat::kSampleFormatU8,
+      ChannelLayout::CHANNEL_LAYOUT_MONO, limits::kMinSampleRate,
+      EmptyExtraData(), Unencrypted());
+  return data;
+}
+
+class FakeRemoter final : public mojom::Remoter {
+ public:
+  // |start_will_fail| indicates whether starting remoting will fail.
+  FakeRemoter(mojom::RemotingSourcePtr source, bool start_will_fail)
+      : source_(std::move(source)), start_will_fail_(start_will_fail) {}
+  ~FakeRemoter() override {}
+
+  // mojom::Remoter implementations.
+  void Start() override {
+    if (start_will_fail_) {
+      base::ThreadTaskRunnerHandle::Get()->PostTask(
+          FROM_HERE,
+          base::Bind(&FakeRemoter::StartFailed, base::Unretained(this)));
+    } else {
+      base::ThreadTaskRunnerHandle::Get()->PostTask(
+          FROM_HERE, base::Bind(&FakeRemoter::Started, base::Unretained(this)));
+    }
+  }
+
+  void StartDataStreams(
+      mojo::ScopedDataPipeConsumerHandle audio_pipe,
+      mojo::ScopedDataPipeConsumerHandle video_pipe,
+      mojom::RemotingDataStreamSenderRequest audio_sender_request,
+      mojom::RemotingDataStreamSenderRequest video_sender_request) override {}
+
+  void Stop(mojom::RemotingStopReason reason) override {
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
+        FROM_HERE,
+        base::Bind(&FakeRemoter::Stopped, base::Unretained(this), reason));
+  }
+
+  void SendMessageToSink(const std::vector<uint8_t>& message) override {}
+
+ private:
+  void Started() { source_->OnStarted(); }
+  void StartFailed() {
+    source_->OnStartFailed(mojom::RemotingStartFailReason::ROUTE_TERMINATED);
+  }
+  void Stopped(mojom::RemotingStopReason reason) { source_->OnStopped(reason); }
+
+  mojom::RemotingSourcePtr source_;
+  bool start_will_fail_;
+
+  DISALLOW_COPY_AND_ASSIGN(FakeRemoter);
+};
+
+class FakeRemoterFactory final : public mojom::RemoterFactory {
+ public:
+  // |start_will_fail| indicates whether starting remoting will fail.
+  explicit FakeRemoterFactory(bool start_will_fail)
+      : start_will_fail_(start_will_fail) {}
+  ~FakeRemoterFactory() override {}
+
+  void Create(mojom::RemotingSourcePtr source,
+              mojom::RemoterRequest request) override {
+    mojo::MakeStrongBinding(
+        base::MakeUnique<FakeRemoter>(std::move(source), start_will_fail_),
+        std::move(request));
+  }
+
+ private:
+  bool start_will_fail_;
+
+  DISALLOW_COPY_AND_ASSIGN(FakeRemoterFactory);
+};
+
+std::unique_ptr<RemotingController> CreateRemotingController(
+    mojom::RemoterFactory* remoter_factory) {
+  mojom::RemotingSourcePtr remoting_source;
+  mojom::RemotingSourceRequest remoting_source_request =
+      mojo::GetProxy(&remoting_source);
+  mojom::RemoterPtr remoter;
+  remoter_factory->Create(std::move(remoting_source), mojo::GetProxy(&remoter));
+  std::unique_ptr<RemotingController> remoting_controller =
+      base::MakeUnique<RemotingController>(std::move(remoting_source_request),
+                                           std::move(remoter));
+  return remoting_controller;
+}
+
+}  // namespace
+
+class RemotingControllerTest : public ::testing::Test {
+ public:
+  RemotingControllerTest()
+      : remoting_controller_(
+            CreateRemotingController(new FakeRemoterFactory(false))),
+        is_remoting_(false) {
+    remoting_controller_->SetSwitchRendererCallback(base::Bind(
+        &RemotingControllerTest::ToggleRenderer, base::Unretained(this)));
+  }
+  ~RemotingControllerTest() override {}
+
+  void TearDown() final { RunUntilIdle(); }
+
+  static void RunUntilIdle() { base::RunLoop().RunUntilIdle(); }
+
+  void ToggleRenderer() { is_remoting_ = remoting_controller_->is_remoting(); }
+
+  base::MessageLoop message_loop_;
+
+ protected:
+  std::unique_ptr<RemotingController> remoting_controller_;
+  bool is_remoting_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(RemotingControllerTest);
+};
+
+TEST_F(RemotingControllerTest, ToggleRenderer) {
+  EXPECT_FALSE(is_remoting_);
+  remoting_controller_->OnSinkAvailable();
+  remoting_controller_->OnEnteredFullscreen();
+  EXPECT_FALSE(is_remoting_);
+  remoting_controller_->OnMetadata(defaultMetadata());
+  RunUntilIdle();
+  EXPECT_TRUE(is_remoting_);
+  remoting_controller_->OnExitedFullscreen();
+  RunUntilIdle();
+  EXPECT_FALSE(is_remoting_);
+}
+
+TEST_F(RemotingControllerTest, StartFailed) {
+  EXPECT_FALSE(is_remoting_);
+  remoting_controller_ = CreateRemotingController(new FakeRemoterFactory(true));
+  remoting_controller_->SetSwitchRendererCallback(base::Bind(
+      &RemotingControllerTest::ToggleRenderer, base::Unretained(this)));
+  remoting_controller_->OnSinkAvailable();
+  remoting_controller_->OnEnteredFullscreen();
+  remoting_controller_->OnMetadata(defaultMetadata());
+  RunUntilIdle();
+  EXPECT_FALSE(is_remoting_);
+}
+
+}  // namespace media