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// Copyright (c) 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 "content/browser/media/capture/audio_mirroring_manager.h"
#include <map>
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/message_loop/message_loop.h"
#include "base/synchronization/waitable_event.h"
#include "content/browser/browser_thread_impl.h"
#include "media/audio/audio_parameters.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using media::AudioOutputStream;
using media::AudioParameters;
using testing::_;
using testing::NotNull;
using testing::Ref;
using testing::Return;
using testing::ReturnRef;
namespace content {
namespace {
class MockDiverter : public AudioMirroringManager::Diverter {
public:
MOCK_METHOD0(GetAudioParameters, const AudioParameters&());
MOCK_METHOD1(StartDiverting, void(AudioOutputStream*));
MOCK_METHOD0(StopDiverting, void());
};
class MockMirroringDestination
: public AudioMirroringManager::MirroringDestination {
public:
MOCK_METHOD1(AddInput,
media::AudioOutputStream*(const media::AudioParameters& params));
};
} // namespace
class AudioMirroringManagerTest : public testing::Test {
public:
AudioMirroringManagerTest()
: io_thread_(BrowserThread::IO, &message_loop_),
params_(AudioParameters::AUDIO_FAKE, media::CHANNEL_LAYOUT_STEREO,
AudioParameters::kAudioCDSampleRate, 16,
AudioParameters::kAudioCDSampleRate / 10) {}
MockDiverter* CreateStream(
int render_process_id, int render_view_id, int expected_times_diverted) {
MockDiverter* const diverter = new MockDiverter();
if (expected_times_diverted > 0) {
EXPECT_CALL(*diverter, GetAudioParameters())
.Times(expected_times_diverted)
.WillRepeatedly(ReturnRef(params_));
EXPECT_CALL(*diverter, StartDiverting(NotNull()))
.Times(expected_times_diverted);
EXPECT_CALL(*diverter, StopDiverting())
.Times(expected_times_diverted);
}
mirroring_manager_.AddDiverter(render_process_id, render_view_id, diverter);
return diverter;
}
void KillStream(
int render_process_id, int render_view_id, MockDiverter* diverter) {
mirroring_manager_.RemoveDiverter(
render_process_id, render_view_id, diverter);
delete diverter;
}
MockMirroringDestination* StartMirroringTo(
int render_process_id, int render_view_id, int expected_inputs_added) {
MockMirroringDestination* const dest = new MockMirroringDestination();
if (expected_inputs_added > 0) {
static AudioOutputStream* const kNonNullPointer =
reinterpret_cast<AudioOutputStream*>(0x11111110);
EXPECT_CALL(*dest, AddInput(Ref(params_)))
.Times(expected_inputs_added)
.WillRepeatedly(Return(kNonNullPointer));
}
mirroring_manager_.StartMirroring(render_process_id, render_view_id, dest);
return dest;
}
void StopMirroringTo(int render_process_id, int render_view_id,
MockMirroringDestination* dest) {
mirroring_manager_.StopMirroring(render_process_id, render_view_id, dest);
delete dest;
}
private:
base::MessageLoopForIO message_loop_;
BrowserThreadImpl io_thread_;
AudioParameters params_;
AudioMirroringManager mirroring_manager_;
DISALLOW_COPY_AND_ASSIGN(AudioMirroringManagerTest);
};
namespace {
const int kRenderProcessId = 123;
const int kRenderViewId = 456;
const int kAnotherRenderProcessId = 789;
const int kAnotherRenderViewId = 1234;
const int kYetAnotherRenderProcessId = 4560;
const int kYetAnotherRenderViewId = 7890;
}
TEST_F(AudioMirroringManagerTest, MirroringSessionOfNothing) {
MockMirroringDestination* const destination =
StartMirroringTo(kRenderProcessId, kRenderViewId, 0);
StopMirroringTo(kRenderProcessId, kRenderViewId, destination);
}
TEST_F(AudioMirroringManagerTest, TwoMirroringSessionsOfNothing) {
MockMirroringDestination* const destination =
StartMirroringTo(kRenderProcessId, kRenderViewId, 0);
StopMirroringTo(kRenderProcessId, kRenderViewId, destination);
MockMirroringDestination* const another_destination =
StartMirroringTo(kAnotherRenderProcessId, kAnotherRenderViewId, 0);
StopMirroringTo(kAnotherRenderProcessId, kAnotherRenderViewId,
another_destination);
}
TEST_F(AudioMirroringManagerTest, SwitchMirroringDestinationNoStreams) {
MockMirroringDestination* const destination =
StartMirroringTo(kRenderProcessId, kRenderViewId, 0);
MockMirroringDestination* const new_destination =
StartMirroringTo(kRenderProcessId, kRenderViewId, 0);
StopMirroringTo(kRenderProcessId, kRenderViewId, destination);
StopMirroringTo(kRenderProcessId, kRenderViewId, new_destination);
}
TEST_F(AudioMirroringManagerTest, StreamLifetimeAroundMirroringSession) {
MockDiverter* const stream = CreateStream(kRenderProcessId, kRenderViewId, 1);
MockMirroringDestination* const destination =
StartMirroringTo(kRenderProcessId, kRenderViewId, 1);
StopMirroringTo(kRenderProcessId, kRenderViewId, destination);
KillStream(kRenderProcessId, kRenderViewId, stream);
}
TEST_F(AudioMirroringManagerTest, StreamLifetimeWithinMirroringSession) {
MockMirroringDestination* const destination =
StartMirroringTo(kRenderProcessId, kRenderViewId, 1);
MockDiverter* const stream = CreateStream(kRenderProcessId, kRenderViewId, 1);
KillStream(kRenderProcessId, kRenderViewId, stream);
StopMirroringTo(kRenderProcessId, kRenderViewId, destination);
}
TEST_F(AudioMirroringManagerTest, StreamLifetimeAroundTwoMirroringSessions) {
MockDiverter* const stream = CreateStream(kRenderProcessId, kRenderViewId, 2);
MockMirroringDestination* const destination =
StartMirroringTo(kRenderProcessId, kRenderViewId, 1);
StopMirroringTo(kRenderProcessId, kRenderViewId, destination);
MockMirroringDestination* const new_destination =
StartMirroringTo(kRenderProcessId, kRenderViewId, 1);
StopMirroringTo(kRenderProcessId, kRenderViewId, new_destination);
KillStream(kRenderProcessId, kRenderViewId, stream);
}
TEST_F(AudioMirroringManagerTest, StreamLifetimeWithinTwoMirroringSessions) {
MockMirroringDestination* const destination =
StartMirroringTo(kRenderProcessId, kRenderViewId, 1);
MockDiverter* const stream = CreateStream(kRenderProcessId, kRenderViewId, 2);
StopMirroringTo(kRenderProcessId, kRenderViewId, destination);
MockMirroringDestination* const new_destination =
StartMirroringTo(kRenderProcessId, kRenderViewId, 1);
KillStream(kRenderProcessId, kRenderViewId, stream);
StopMirroringTo(kRenderProcessId, kRenderViewId, new_destination);
}
TEST_F(AudioMirroringManagerTest, MultipleStreamsInOneMirroringSession) {
MockDiverter* const stream1 =
CreateStream(kRenderProcessId, kRenderViewId, 1);
MockMirroringDestination* const destination =
StartMirroringTo(kRenderProcessId, kRenderViewId, 3);
MockDiverter* const stream2 =
CreateStream(kRenderProcessId, kRenderViewId, 1);
MockDiverter* const stream3 =
CreateStream(kRenderProcessId, kRenderViewId, 1);
KillStream(kRenderProcessId, kRenderViewId, stream2);
StopMirroringTo(kRenderProcessId, kRenderViewId, destination);
KillStream(kRenderProcessId, kRenderViewId, stream3);
KillStream(kRenderProcessId, kRenderViewId, stream1);
}
// A random interleaving of operations for three separate targets, each of which
// has one stream mirrored to one destination.
TEST_F(AudioMirroringManagerTest, ThreeSeparateMirroringSessions) {
MockDiverter* const stream =
CreateStream(kRenderProcessId, kRenderViewId, 1);
MockMirroringDestination* const destination =
StartMirroringTo(kRenderProcessId, kRenderViewId, 1);
MockMirroringDestination* const another_destination =
StartMirroringTo(kAnotherRenderProcessId, kAnotherRenderViewId, 1);
MockDiverter* const another_stream =
CreateStream(kAnotherRenderProcessId, kAnotherRenderViewId, 1);
KillStream(kRenderProcessId, kRenderViewId, stream);
MockDiverter* const yet_another_stream =
CreateStream(kYetAnotherRenderProcessId, kYetAnotherRenderViewId, 1);
MockMirroringDestination* const yet_another_destination =
StartMirroringTo(kYetAnotherRenderProcessId, kYetAnotherRenderViewId, 1);
StopMirroringTo(kAnotherRenderProcessId, kAnotherRenderViewId,
another_destination);
StopMirroringTo(kYetAnotherRenderProcessId, kYetAnotherRenderViewId,
yet_another_destination);
StopMirroringTo(kRenderProcessId, kRenderViewId, destination);
KillStream(kAnotherRenderProcessId, kAnotherRenderViewId, another_stream);
KillStream(kYetAnotherRenderProcessId, kYetAnotherRenderViewId,
yet_another_stream);
}
} // namespace content
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