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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/webrtc_set_remote_description_observer.h"
#include <memory>
#include <utility>
#include <vector>
#include "base/optional.h"
#include "base/run_loop.h"
#include "base/single_thread_task_runner.h"
#include "base/test/scoped_task_environment.h"
#include "base/threading/thread_task_runner_handle.h"
#include "content/child/child_process.h"
#include "content/renderer/media/webrtc/mock_peer_connection_dependency_factory.h"
#include "content/renderer/media/webrtc/mock_peer_connection_impl.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/blink/public/platform/scheduler/test/renderer_scheduler_test_support.h"
#include "third_party/blink/public/web/web_heap.h"
#include "third_party/webrtc/api/peerconnectioninterface.h"
#include "third_party/webrtc/media/base/fakemediaengine.h"
#include "third_party/webrtc/pc/test/mock_peerconnection.h"
using ::testing::Return;
namespace content {
class WebRtcSetRemoteDescriptionObserverForTest
: public WebRtcSetRemoteDescriptionObserver {
public:
bool called() const { return states_or_error_.has_value(); }
bool result() const { return states_or_error_->ok(); }
const WebRtcSetRemoteDescriptionObserver::States& states() const {
DCHECK(called() && result());
return states_or_error_->value();
}
const webrtc::RTCError& error() const {
DCHECK(called() && !result());
return states_or_error_->error();
}
// WebRtcSetRemoteDescriptionObserver implementation.
void OnSetRemoteDescriptionComplete(
webrtc::RTCErrorOr<States> states_or_error) override {
states_or_error_ = std::move(states_or_error);
}
private:
~WebRtcSetRemoteDescriptionObserverForTest() override {}
base::Optional<webrtc::RTCErrorOr<WebRtcSetRemoteDescriptionObserver::States>>
states_or_error_;
WebRtcSetRemoteDescriptionObserver::States states_;
};
class WebRtcSetRemoteDescriptionObserverHandlerTest : public ::testing::Test {
public:
void SetUp() override {
pc_ = new webrtc::MockPeerConnection(new webrtc::FakePeerConnectionFactory(
std::unique_ptr<cricket::MediaEngineInterface>(
new cricket::FakeMediaEngine())));
dependency_factory_.reset(new MockPeerConnectionDependencyFactory());
main_thread_ = blink::scheduler::GetSingleThreadTaskRunnerForTesting();
scoped_refptr<WebRtcMediaStreamAdapterMap> map =
new WebRtcMediaStreamAdapterMap(
dependency_factory_.get(), main_thread_,
new WebRtcMediaStreamTrackAdapterMap(dependency_factory_.get(),
main_thread_));
observer_ = new WebRtcSetRemoteDescriptionObserverForTest();
observer_handler_ = WebRtcSetRemoteDescriptionObserverHandler::Create(
main_thread_, pc_, map, observer_);
}
void TearDown() override { blink::WebHeap::CollectAllGarbageForTesting(); }
void InvokeOnSetRemoteDescriptionComplete(webrtc::RTCError error) {
base::RunLoop run_loop;
dependency_factory_->GetWebRtcSignalingThread()->PostTask(
FROM_HERE,
base::BindOnce(
&WebRtcSetRemoteDescriptionObserverHandlerTest::
InvokeOnSetRemoteDescriptionCompleteOnSignalingThread,
base::Unretained(this), std::move(error),
base::Unretained(&run_loop)));
run_loop.Run();
}
protected:
void InvokeOnSetRemoteDescriptionCompleteOnSignalingThread(
webrtc::RTCError error,
base::RunLoop* run_loop) {
observer_handler_->OnSetRemoteDescriptionComplete(std::move(error));
run_loop->Quit();
}
// The ScopedTaskEnvironment prevents the ChildProcess from leaking a
// TaskScheduler.
base::test::ScopedTaskEnvironment scoped_task_environment_;
ChildProcess child_process_;
scoped_refptr<webrtc::MockPeerConnection> pc_;
std::unique_ptr<MockPeerConnectionDependencyFactory> dependency_factory_;
scoped_refptr<base::SingleThreadTaskRunner> main_thread_;
scoped_refptr<WebRtcSetRemoteDescriptionObserverForTest> observer_;
scoped_refptr<WebRtcSetRemoteDescriptionObserverHandler> observer_handler_;
std::vector<rtc::scoped_refptr<webrtc::RtpReceiverInterface>> receivers_;
};
TEST_F(WebRtcSetRemoteDescriptionObserverHandlerTest, OnSuccess) {
scoped_refptr<MockWebRtcAudioTrack> added_track =
MockWebRtcAudioTrack::Create("added_track");
scoped_refptr<webrtc::MediaStreamInterface> added_stream(
new rtc::RefCountedObject<MockMediaStream>("added_stream"));
scoped_refptr<webrtc::RtpReceiverInterface> added_receiver(
new rtc::RefCountedObject<FakeRtpReceiver>(
added_track.get(),
std::vector<rtc::scoped_refptr<webrtc::MediaStreamInterface>>(
{added_stream.get()})));
receivers_.push_back(added_receiver.get());
EXPECT_CALL(*pc_, GetReceivers()).WillRepeatedly(Return(receivers_));
InvokeOnSetRemoteDescriptionComplete(webrtc::RTCError::OK());
EXPECT_TRUE(observer_->called());
EXPECT_TRUE(observer_->result());
EXPECT_EQ(1u, observer_->states().receiver_states.size());
const WebRtcReceiverState& receiver_state =
observer_->states().receiver_states[0];
EXPECT_EQ(added_receiver, receiver_state.receiver);
EXPECT_EQ(added_track, receiver_state.track_ref->webrtc_track());
EXPECT_EQ(1u, receiver_state.stream_refs.size());
EXPECT_EQ(added_stream,
receiver_state.stream_refs[0]->adapter().webrtc_stream());
}
TEST_F(WebRtcSetRemoteDescriptionObserverHandlerTest, OnFailure) {
webrtc::RTCError error(webrtc::RTCErrorType::INVALID_PARAMETER, "Oh noes!");
InvokeOnSetRemoteDescriptionComplete(std::move(error));
EXPECT_TRUE(observer_->called());
EXPECT_FALSE(observer_->result());
EXPECT_EQ(std::string("Oh noes!"), observer_->error().message());
}
} // namespace content
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