[Cast] Clean-up: Merge RtpReceiver+AudioReceiver+VideoReceiver-->FrameReceiver.

media/cast/video_receiver/video_receiver_unittest.cc

Index: media/cast/video_receiver/video_receiver_unittest.cc
diff --git a/media/cast/video_receiver/video_receiver_unittest.cc b/media/cast/video_receiver/video_receiver_unittest.cc
deleted file mode 100644
index d158d7e32563bc15a4ec41ad57ddfa5c523281e3..0000000000000000000000000000000000000000
--- a/media/cast/video_receiver/video_receiver_unittest.cc
+++ /dev/null
@@ -1,266 +0,0 @@
-// Copyright 2013 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 <deque>
-#include <utility>
-
-#include "base/bind.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/test/simple_test_tick_clock.h"
-#include "media/cast/cast_defines.h"
-#include "media/cast/cast_environment.h"
-#include "media/cast/logging/simple_event_subscriber.h"
-#include "media/cast/rtcp/test_rtcp_packet_builder.h"
-#include "media/cast/test/fake_single_thread_task_runner.h"
-#include "media/cast/test/utility/default_config.h"
-#include "media/cast/transport/pacing/mock_paced_packet_sender.h"
-#include "media/cast/video_receiver/video_receiver.h"
-#include "testing/gmock/include/gmock/gmock.h"
-
-using ::testing::_;
-
-namespace media {
-namespace cast {
-
-namespace {
-
-const int kPacketSize = 1500;
-const uint32 kFirstFrameId = 1234;
-const int kPlayoutDelayMillis = 100;
-
-class FakeVideoClient {
- public:
-  FakeVideoClient() : num_called_(0) {}
-  virtual ~FakeVideoClient() {}
-
-  void AddExpectedResult(uint32 expected_frame_id,
-                         const base::TimeTicks& expected_playout_time) {
-    expected_results_.push_back(
-        std::make_pair(expected_frame_id, expected_playout_time));
-  }
-
-  void DeliverEncodedVideoFrame(
-      scoped_ptr<transport::EncodedFrame> video_frame) {
-    SCOPED_TRACE(::testing::Message() << "num_called_ is " << num_called_);
-    ASSERT_FALSE(!video_frame)
-        << "If at shutdown: There were unsatisfied requests enqueued.";
-    ASSERT_FALSE(expected_results_.empty());
-    EXPECT_EQ(expected_results_.front().first, video_frame->frame_id);
-    EXPECT_EQ(expected_results_.front().second, video_frame->reference_time);
-    expected_results_.pop_front();
-    ++num_called_;
-  }
-
-  int number_times_called() const { return num_called_; }
-
- private:
-  std::deque<std::pair<uint32, base::TimeTicks> > expected_results_;
-  int num_called_;
-
-  DISALLOW_COPY_AND_ASSIGN(FakeVideoClient);
-};
-}  // namespace
-
-class VideoReceiverTest : public ::testing::Test {
- protected:
-  VideoReceiverTest() {
-    config_ = GetDefaultVideoReceiverConfig();
-    config_.rtp_max_delay_ms = kPlayoutDelayMillis;
-    // Note: Frame rate must divide 1000 without remainder so the test code
-    // doesn't have to account for rounding errors.
-    config_.max_frame_rate = 25;
-    config_.codec.video = transport::kVp8;  // Frame skipping not allowed.
-    testing_clock_ = new base::SimpleTestTickClock();
-    testing_clock_->Advance(base::TimeTicks::Now() - base::TimeTicks());
-    start_time_ = testing_clock_->NowTicks();
-    task_runner_ = new test::FakeSingleThreadTaskRunner(testing_clock_);
-
-    cast_environment_ =
-        new CastEnvironment(scoped_ptr<base::TickClock>(testing_clock_).Pass(),
-                            task_runner_,
-                            task_runner_,
-                            task_runner_);
-
-    receiver_.reset(new VideoReceiver(
-        cast_environment_, config_, &mock_transport_));
-  }
-
-  virtual ~VideoReceiverTest() {}
-
-  virtual void SetUp() {
-    payload_.assign(kPacketSize, 0);
-
-    // Always start with a key frame.
-    rtp_header_.is_key_frame = true;
-    rtp_header_.frame_id = kFirstFrameId;
-    rtp_header_.reference_frame_id = rtp_header_.frame_id;
-    rtp_header_.packet_id = 0;
-    rtp_header_.max_packet_id = 0;
-  }
-
-  void FeedOneFrameIntoReceiver() {
-    receiver_->OnReceivedPayloadData(
-        payload_.data(), payload_.size(), rtp_header_);
-  }
-
-  void FeedLipSyncInfoIntoReceiver() {
-    const base::TimeTicks now = testing_clock_->NowTicks();
-    const int64 rtp_timestamp = (now - start_time_) *
-        kVideoFrequency / base::TimeDelta::FromSeconds(1);
-    CHECK_LE(0, rtp_timestamp);
-    uint32 ntp_seconds;
-    uint32 ntp_fraction;
-    ConvertTimeTicksToNtp(now, &ntp_seconds, &ntp_fraction);
-    TestRtcpPacketBuilder rtcp_packet;
-    rtcp_packet.AddSrWithNtp(config_.incoming_ssrc,
-                             ntp_seconds, ntp_fraction,
-                             static_cast<uint32>(rtp_timestamp));
-    receiver_->IncomingPacket(rtcp_packet.GetPacket().Pass());
-  }
-
-  FrameReceiverConfig config_;
-  std::vector<uint8> payload_;
-  RtpCastHeader rtp_header_;
-  base::SimpleTestTickClock* testing_clock_;  // Owned by CastEnvironment.
-  base::TimeTicks start_time_;
-  transport::MockPacedPacketSender mock_transport_;
-  scoped_refptr<test::FakeSingleThreadTaskRunner> task_runner_;
-  scoped_refptr<CastEnvironment> cast_environment_;
-  FakeVideoClient fake_video_client_;
-
-  // Important for the VideoReceiver to be declared last, since its dependencies
-  // must remain alive until after its destruction.
-  scoped_ptr<VideoReceiver> receiver_;
-
-  DISALLOW_COPY_AND_ASSIGN(VideoReceiverTest);
-};
-
-TEST_F(VideoReceiverTest, ReceivesOneFrame) {
-  SimpleEventSubscriber event_subscriber;
-  cast_environment_->Logging()->AddRawEventSubscriber(&event_subscriber);
-
-  EXPECT_CALL(mock_transport_, SendRtcpPacket(_, _))
-      .WillRepeatedly(testing::Return(true));
-
-  FeedLipSyncInfoIntoReceiver();
-  task_runner_->RunTasks();
-
-  // Enqueue a request for a video frame.
-  receiver_->GetEncodedVideoFrame(
-      base::Bind(&FakeVideoClient::DeliverEncodedVideoFrame,
-                 base::Unretained(&fake_video_client_)));
-
-  // The request should not be satisfied since no packets have been received.
-  task_runner_->RunTasks();
-  EXPECT_EQ(0, fake_video_client_.number_times_called());
-
-  // Deliver one video frame to the receiver and expect to get one frame back.
-  const base::TimeDelta target_playout_delay =
-      base::TimeDelta::FromMilliseconds(kPlayoutDelayMillis);
-  fake_video_client_.AddExpectedResult(
-      kFirstFrameId, testing_clock_->NowTicks() + target_playout_delay);
-  FeedOneFrameIntoReceiver();
-  task_runner_->RunTasks();
-  EXPECT_EQ(1, fake_video_client_.number_times_called());
-
-  std::vector<FrameEvent> frame_events;
-  event_subscriber.GetFrameEventsAndReset(&frame_events);
-
-  ASSERT_TRUE(!frame_events.empty());
-  EXPECT_EQ(FRAME_ACK_SENT, frame_events.begin()->type);
-  EXPECT_EQ(rtp_header_.frame_id, frame_events.begin()->frame_id);
-  EXPECT_EQ(rtp_header_.rtp_timestamp, frame_events.begin()->rtp_timestamp);
-
-  cast_environment_->Logging()->RemoveRawEventSubscriber(&event_subscriber);
-}
-
-TEST_F(VideoReceiverTest, ReceivesFramesRefusingToSkipAny) {
-  EXPECT_CALL(mock_transport_, SendRtcpPacket(_, _))
-      .WillRepeatedly(testing::Return(true));
-
-  const uint32 rtp_advance_per_frame =
-      config_.frequency / config_.max_frame_rate;
-  const base::TimeDelta time_advance_per_frame =
-      base::TimeDelta::FromSeconds(1) / config_.max_frame_rate;
-
-  // Feed and process lip sync in receiver.
-  FeedLipSyncInfoIntoReceiver();
-  task_runner_->RunTasks();
-  const base::TimeTicks first_frame_capture_time = testing_clock_->NowTicks();
-
-  // Enqueue a request for a video frame.
-  const FrameEncodedCallback frame_encoded_callback =
-      base::Bind(&FakeVideoClient::DeliverEncodedVideoFrame,
-                 base::Unretained(&fake_video_client_));
-  receiver_->GetEncodedVideoFrame(frame_encoded_callback);
-  task_runner_->RunTasks();
-  EXPECT_EQ(0, fake_video_client_.number_times_called());
-
-  // Receive one video frame and expect to see the first request satisfied.
-  const base::TimeDelta target_playout_delay =
-      base::TimeDelta::FromMilliseconds(kPlayoutDelayMillis);
-  fake_video_client_.AddExpectedResult(
-      kFirstFrameId, first_frame_capture_time + target_playout_delay);
-  rtp_header_.rtp_timestamp = 0;
-  FeedOneFrameIntoReceiver();
-  task_runner_->RunTasks();
-  EXPECT_EQ(1, fake_video_client_.number_times_called());
-
-  // Enqueue a second request for a video frame, but it should not be
-  // fulfilled yet.
-  receiver_->GetEncodedVideoFrame(frame_encoded_callback);
-  task_runner_->RunTasks();
-  EXPECT_EQ(1, fake_video_client_.number_times_called());
-
-  // Receive one video frame out-of-order: Make sure that we are not continuous
-  // and that the RTP timestamp represents a time in the future.
-  rtp_header_.is_key_frame = false;
-  rtp_header_.frame_id = kFirstFrameId + 2;  // "Frame 3"
-  rtp_header_.reference_frame_id = kFirstFrameId + 1;  // "Frame 2"
-  rtp_header_.rtp_timestamp += 2 * rtp_advance_per_frame;
-  FeedOneFrameIntoReceiver();
-
-  // Frame 2 should not come out at this point in time.
-  task_runner_->RunTasks();
-  EXPECT_EQ(1, fake_video_client_.number_times_called());
-
-  // Enqueue a third request for a video frame.
-  receiver_->GetEncodedVideoFrame(frame_encoded_callback);
-  task_runner_->RunTasks();
-  EXPECT_EQ(1, fake_video_client_.number_times_called());
-
-  // Now, advance time forward such that Frame 2 is now too late for playback.
-  // Regardless, the receiver must NOT emit Frame 3 yet because it is not
-  // allowed to skip frames for VP8.
-  testing_clock_->Advance(2 * time_advance_per_frame + target_playout_delay);
-  task_runner_->RunTasks();
-  EXPECT_EQ(1, fake_video_client_.number_times_called());
-
-  // Now receive Frame 2 and expect both the second and third requests to be
-  // fulfilled immediately.
-  fake_video_client_.AddExpectedResult(
-      kFirstFrameId + 1,  // "Frame 2"
-      first_frame_capture_time + 1 * time_advance_per_frame +
-          target_playout_delay);
-  fake_video_client_.AddExpectedResult(
-      kFirstFrameId + 2,  // "Frame 3"
-      first_frame_capture_time + 2 * time_advance_per_frame +
-          target_playout_delay);
-  --rtp_header_.frame_id;  // "Frame 2"
-  --rtp_header_.reference_frame_id;  // "Frame 1"
-  rtp_header_.rtp_timestamp -= rtp_advance_per_frame;
-  FeedOneFrameIntoReceiver();
-  task_runner_->RunTasks();
-  EXPECT_EQ(3, fake_video_client_.number_times_called());
-
-  // Move forward to the playout time of an unreceived Frame 5.  Expect no
-  // additional frames were emitted.
-  testing_clock_->Advance(3 * time_advance_per_frame);
-  task_runner_->RunTasks();
-  EXPECT_EQ(3, fake_video_client_.number_times_called());
-}
-
-}  // namespace cast
-}  // namespace media