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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/mirroring/service/captured_audio_input.h"
#include <utility>
#include "base/functional/bind.h"
#include "base/memory/raw_ptr.h"
#include "base/run_loop.h"
#include "base/test/task_environment.h"
#include "components/mirroring/mojom/session_observer.mojom.h"
#include "media/base/audio_capturer_source.h"
#include "media/base/audio_parameters.h"
#include "media/mojo/mojom/audio_data_pipe.mojom.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "mojo/public/cpp/bindings/self_owned_receiver.h"
#include "mojo/public/cpp/system/buffer.h"
#include "mojo/public/cpp/system/platform_handle.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using ::testing::InvokeWithoutArgs;
namespace mirroring {
using AudioSourceErrorCode = media::AudioCapturerSource::ErrorCode;
namespace {
class MockStream final : public media::mojom::AudioInputStream {
public:
MOCK_METHOD0(Record, void());
MOCK_METHOD1(SetVolume, void(double));
};
class MockDelegate final : public media::AudioInputIPCDelegate {
public:
MockDelegate() = default;
~MockDelegate() override = default;
MOCK_METHOD0(StreamCreated, void());
MOCK_METHOD1(OnError, void(AudioSourceErrorCode code));
MOCK_METHOD1(OnMuted, void(bool muted));
MOCK_METHOD0(OnIPCClosed, void());
void OnStreamCreated(base::UnsafeSharedMemoryRegion shared_memory_region,
base::SyncSocket::ScopedHandle socket_handle,
bool initially_muted) override {
StreamCreated();
}
};
} // namespace
class CapturedAudioInputTest : public ::testing::Test {
public:
CapturedAudioInputTest() = default;
CapturedAudioInputTest(const CapturedAudioInputTest&) = delete;
CapturedAudioInputTest& operator=(const CapturedAudioInputTest&) = delete;
~CapturedAudioInputTest() override { task_environment_.RunUntilIdle(); }
void CreateMockStream(
mojo::PendingRemote<mojom::AudioStreamCreatorClient> client,
const media::AudioParameters& params,
uint32_t total_segments) {
EXPECT_FALSE(socket_.IsValid());
EXPECT_FALSE(stream_);
mojo::PendingRemote<media::mojom::AudioInputStream> pending_stream;
auto input_stream = std::make_unique<MockStream>();
stream_ = input_stream.get();
mojo::MakeSelfOwnedReceiver(
std::move(input_stream),
pending_stream.InitWithNewPipeAndPassReceiver());
base::CancelableSyncSocket foreign_socket;
EXPECT_TRUE(
base::CancelableSyncSocket::CreatePair(&socket_, &foreign_socket));
mojo::Remote<mojom::AudioStreamCreatorClient> audio_client(
std::move(client));
stream_client_.reset();
audio_client->StreamCreated(
std::move(pending_stream), stream_client_.BindNewPipeAndPassReceiver(),
{std::in_place, base::UnsafeSharedMemoryRegion::Create(1024),
mojo::PlatformHandle(foreign_socket.Take())});
}
protected:
void CreateStream() {
audio_input_ = std::make_unique<CapturedAudioInput>(
base::BindRepeating(&CapturedAudioInputTest::CreateMockStream,
base::Unretained(this)),
observer_);
base::RunLoop run_loop;
EXPECT_CALL(delegate_, StreamCreated())
.WillOnce(InvokeWithoutArgs(&run_loop, &base::RunLoop::Quit));
audio_input_->CreateStream(&delegate_, media::AudioParameters(), false, 10);
run_loop.Run();
}
void CloseStream() {
EXPECT_TRUE(audio_input_);
audio_input_->CloseStream();
task_environment_.RunUntilIdle();
socket_.Close();
audio_input_.reset();
stream_ = nullptr;
}
void SignalStreamError() {
EXPECT_TRUE(stream_client_.is_bound());
base::RunLoop run_loop;
EXPECT_CALL(delegate_, OnError(AudioSourceErrorCode::kUnknown))
.WillOnce(InvokeWithoutArgs(&run_loop, &base::RunLoop::Quit));
stream_client_->OnError(media::mojom::InputStreamErrorCode::kUnknown);
run_loop.Run();
}
void SignalStreamPermissionsError() {
EXPECT_TRUE(stream_client_.is_bound());
base::RunLoop run_loop;
EXPECT_CALL(delegate_, OnError(AudioSourceErrorCode::kSystemPermissions))
.WillOnce(InvokeWithoutArgs(&run_loop, &base::RunLoop::Quit));
stream_client_->OnError(
media::mojom::InputStreamErrorCode::kSystemPermissions);
run_loop.Run();
}
void SignalMutedStateChanged(bool is_muted) {
EXPECT_TRUE(stream_client_.is_bound());
base::RunLoop run_loop;
EXPECT_CALL(delegate_, OnMuted(true))
.WillOnce(InvokeWithoutArgs(&run_loop, &base::RunLoop::Quit));
stream_client_->OnMutedStateChanged(is_muted);
run_loop.Run();
}
void SetVolume(double volume) {
EXPECT_TRUE(audio_input_);
base::RunLoop run_loop;
EXPECT_CALL(*stream_, SetVolume(volume))
.WillOnce(InvokeWithoutArgs(&run_loop, &base::RunLoop::Quit));
audio_input_->SetVolume(volume);
run_loop.Run();
}
void Record() {
EXPECT_TRUE(audio_input_);
base::RunLoop run_loop;
EXPECT_CALL(*stream_, Record())
.WillOnce(InvokeWithoutArgs(&run_loop, &base::RunLoop::Quit));
audio_input_->RecordStream();
run_loop.Run();
}
private:
base::test::TaskEnvironment task_environment_;
std::unique_ptr<media::AudioInputIPC> audio_input_;
MockDelegate delegate_;
raw_ptr<MockStream, AcrossTasksDanglingUntriaged> stream_ = nullptr;
mojo::Remote<media::mojom::AudioInputStreamClient> stream_client_;
mojo::Remote<mojom::SessionObserver> observer_;
base::CancelableSyncSocket socket_;
};
TEST_F(CapturedAudioInputTest, CreateStream) {
// Test that |delegate_| runs OnStreamCreated().
CreateStream();
CloseStream();
}
TEST_F(CapturedAudioInputTest, PropagatesStreamError) {
CreateStream();
SignalStreamError();
CloseStream();
}
TEST_F(CapturedAudioInputTest, PropagatesStreamPermissionsError) {
CreateStream();
SignalStreamPermissionsError();
CloseStream();
}
TEST_F(CapturedAudioInputTest, PropagatesMutedStateChange) {
CreateStream();
SignalMutedStateChanged(true);
CloseStream();
}
TEST_F(CapturedAudioInputTest, SetVolume) {
CreateStream();
SetVolume(0.8);
CloseStream();
}
TEST_F(CapturedAudioInputTest, Record) {
CreateStream();
Record();
CloseStream();
}
} // namespace mirroring
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