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// Copyright (c) 2017 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/renderer/media/webrtc/rtc_rtp_sender.h"
#include <memory>
#include "base/memory/ref_counted.h"
#include "base/message_loop/message_loop.h"
#include "base/run_loop.h"
#include "base/single_thread_task_runner.h"
#include "build/build_config.h"
#include "content/child/child_process.h"
#include "content/renderer/media/stream/media_stream_audio_source.h"
#include "content/renderer/media/webrtc/mock_peer_connection_dependency_factory.h"
#include "content/renderer/media/webrtc/webrtc_media_stream_adapter_map.h"
#include "content/renderer/media/webrtc/webrtc_media_stream_track_adapter_map.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/WebKit/public/platform/WebMediaStreamSource.h"
#include "third_party/WebKit/public/platform/WebMediaStreamTrack.h"
#include "third_party/WebKit/public/platform/WebRTCVoidRequest.h"
#include "third_party/WebKit/public/platform/WebString.h"
#include "third_party/WebKit/public/platform/scheduler/test/renderer_scheduler_test_support.h"
#include "third_party/WebKit/public/web/WebHeap.h"
#include "third_party/webrtc/api/test/mock_rtpsender.h"
using ::testing::_;
using ::testing::Return;
namespace content {
class RTCRtpSenderTest : public ::testing::Test {
public:
void SetUp() override {
dependency_factory_.reset(new MockPeerConnectionDependencyFactory());
main_thread_ = blink::scheduler::GetSingleThreadTaskRunnerForTesting();
stream_map_ = new WebRtcMediaStreamAdapterMap(
dependency_factory_.get(), main_thread_,
new WebRtcMediaStreamTrackAdapterMap(dependency_factory_.get(),
main_thread_));
mock_webrtc_sender_ = new rtc::RefCountedObject<webrtc::MockRtpSender>();
}
void TearDown() override { blink::WebHeap::CollectAllGarbageForTesting(); }
blink::WebMediaStreamTrack CreateWebTrack(const std::string& id) {
blink::WebMediaStreamSource web_source;
web_source.Initialize(
blink::WebString::FromUTF8(id), blink::WebMediaStreamSource::kTypeAudio,
blink::WebString::FromUTF8("local_audio_track"), false);
MediaStreamAudioSource* audio_source = new MediaStreamAudioSource(true);
// Takes ownership of |audio_source|.
web_source.SetExtraData(audio_source);
blink::WebMediaStreamTrack web_track;
web_track.Initialize(web_source.Id(), web_source);
audio_source->ConnectToTrack(web_track);
return web_track;
}
std::unique_ptr<RTCRtpSender> CreateSender(
blink::WebMediaStreamTrack web_track) {
return std::make_unique<RTCRtpSender>(
main_thread_, dependency_factory_->GetWebRtcSignalingThread(),
stream_map_, mock_webrtc_sender_.get(), std::move(web_track),
std::vector<blink::WebMediaStream>());
}
// Calls replaceTrack(), which is asynchronous, returning a callback that when
// invoked waits for (run-loops) the operation to complete and returns whether
// replaceTrack() was successful.
base::OnceCallback<bool()> ReplaceTrack(
blink::WebMediaStreamTrack web_track) {
std::unique_ptr<base::RunLoop> run_loop = std::make_unique<base::RunLoop>();
std::unique_ptr<bool> result_holder(new bool());
// On complete, |*result_holder| is set with the result of replaceTrack()
// and the |run_loop| quit.
sender_->ReplaceTrack(
web_track, base::BindOnce(&RTCRtpSenderTest::CallbackOnComplete,
base::Unretained(this), result_holder.get(),
run_loop.get()));
// When the resulting callback is invoked, waits for |run_loop| to complete
// and returns |*result_holder|.
return base::BindOnce(&RTCRtpSenderTest::RunLoopAndReturnResult,
base::Unretained(this), std::move(result_holder),
std::move(run_loop));
}
protected:
void CallbackOnComplete(bool* result_out,
base::RunLoop* run_loop,
bool result) {
*result_out = result;
run_loop->Quit();
}
bool RunLoopAndReturnResult(std::unique_ptr<bool> result_holder,
std::unique_ptr<base::RunLoop> run_loop) {
run_loop->Run();
return *result_holder;
}
// Message loop and child processes is needed for task queues and threading to
// work, as is necessary to create tracks and adapters.
base::MessageLoop message_loop_;
ChildProcess child_process_;
std::unique_ptr<MockPeerConnectionDependencyFactory> dependency_factory_;
scoped_refptr<base::SingleThreadTaskRunner> main_thread_;
scoped_refptr<WebRtcMediaStreamAdapterMap> stream_map_;
rtc::scoped_refptr<webrtc::MockRtpSender> mock_webrtc_sender_;
std::unique_ptr<RTCRtpSender> sender_;
};
TEST_F(RTCRtpSenderTest, CreateSender) {
auto web_track = CreateWebTrack("track_id");
sender_ = CreateSender(web_track);
EXPECT_FALSE(sender_->Track().IsNull());
EXPECT_EQ(web_track.UniqueId(), sender_->Track().UniqueId());
}
TEST_F(RTCRtpSenderTest, CreateSenderWithNullTrack) {
blink::WebMediaStreamTrack null_track;
sender_ = CreateSender(null_track);
EXPECT_TRUE(sender_->Track().IsNull());
}
// This test is flaky on Android and Linux.
// See crbug.com/800465 for detail.
#if defined(OS_ANDROID) || defined(OS_LINUX)
#define MAYBE_ReplaceTrackSetsTrack DISABLED_ReplaceTrackSetsTrack
#else
#define MAYBE_ReplaceTrackSetsTrack ReplaceTrackSetsTrack
#endif
TEST_F(RTCRtpSenderTest, ReplaceTrackSetsTrack) {
auto web_track1 = CreateWebTrack("track1");
sender_ = CreateSender(web_track1);
auto web_track2 = CreateWebTrack("track2");
EXPECT_CALL(*mock_webrtc_sender_, SetTrack(_)).WillOnce(Return(true));
auto replaceTrackRunLoopAndGetResult = ReplaceTrack(web_track2);
EXPECT_TRUE(std::move(replaceTrackRunLoopAndGetResult).Run());
ASSERT_FALSE(sender_->Track().IsNull());
EXPECT_EQ(web_track2.UniqueId(), sender_->Track().UniqueId());
}
// This test is flaky on Android and Linux.
// See crbug.com/803597 for detail.
#if defined(OS_ANDROID) || defined(OS_LINUX)
#define MAYBE_ReplaceTrackWithNullTrack DISABLED_ReplaceTrackWithNullTrack
#else
#define MAYBE_ReplaceTrackWithNullTrack ReplaceTrackWithNullTrack
#endif
TEST_F(RTCRtpSenderTest, MAYBE_ReplaceTrackWithNullTrack) {
auto web_track = CreateWebTrack("track_id");
sender_ = CreateSender(web_track);
blink::WebMediaStreamTrack null_track;
EXPECT_CALL(*mock_webrtc_sender_, SetTrack(_)).WillOnce(Return(true));
auto replaceTrackRunLoopAndGetResult = ReplaceTrack(null_track);
EXPECT_TRUE(std::move(replaceTrackRunLoopAndGetResult).Run());
EXPECT_TRUE(sender_->Track().IsNull());
}
TEST_F(RTCRtpSenderTest, ReplaceTrackCanFail) {
auto web_track = CreateWebTrack("track_id");
sender_ = CreateSender(web_track);
ASSERT_FALSE(sender_->Track().IsNull());
EXPECT_EQ(web_track.UniqueId(), sender_->Track().UniqueId());
blink::WebMediaStreamTrack null_track;
EXPECT_CALL(*mock_webrtc_sender_, SetTrack(_)).WillOnce(Return(false));
auto replaceTrackRunLoopAndGetResult = ReplaceTrack(null_track);
EXPECT_FALSE(std::move(replaceTrackRunLoopAndGetResult).Run());
// The track should not have been set.
ASSERT_FALSE(sender_->Track().IsNull());
EXPECT_EQ(web_track.UniqueId(), sender_->Track().UniqueId());
}
TEST_F(RTCRtpSenderTest, ReplaceTrackIsNotSetSynchronously) {
auto web_track1 = CreateWebTrack("track1");
sender_ = CreateSender(web_track1);
auto web_track2 = CreateWebTrack("track2");
EXPECT_CALL(*mock_webrtc_sender_, SetTrack(_)).WillOnce(Return(true));
auto replaceTrackRunLoopAndGetResult = ReplaceTrack(web_track2);
// The track should not be set until the run loop has executed.
ASSERT_FALSE(sender_->Track().IsNull());
EXPECT_NE(web_track2.UniqueId(), sender_->Track().UniqueId());
// Wait for operation to run to ensure EXPECT_CALL is satisfied.
std::move(replaceTrackRunLoopAndGetResult).Run();
}
TEST_F(RTCRtpSenderTest, CopiedSenderSharesInternalStates) {
auto web_track = CreateWebTrack("track_id");
sender_ = CreateSender(web_track);
auto copy = std::make_unique<RTCRtpSender>(*sender_);
// Copy shares original's ID.
EXPECT_EQ(sender_->Id(), copy->Id());
blink::WebMediaStreamTrack null_track;
EXPECT_CALL(*mock_webrtc_sender_, SetTrack(_)).WillOnce(Return(true));
auto replaceTrackRunLoopAndGetResult = ReplaceTrack(null_track);
EXPECT_TRUE(std::move(replaceTrackRunLoopAndGetResult).Run());
// Both original and copy shows a modified state.
EXPECT_TRUE(sender_->Track().IsNull());
EXPECT_TRUE(copy->Track().IsNull());
}
} // namespace content
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