blob: f0333c5c4b1675ee27d412f65c7e3d2c59e89649 [file] [log] [blame]
// Copyright (c) 2012 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 "media/audio/win/audio_device_listener_win.h"
#include <memory>
#include <string>
#include "base/bind.h"
#include "base/callback_helpers.h"
#include "base/macros.h"
#include "base/strings/utf_string_conversions.h"
#include "base/system/system_monitor.h"
#include "base/test/simple_test_tick_clock.h"
#include "base/test/task_environment.h"
#include "base/win/scoped_com_initializer.h"
#include "media/audio/audio_manager.h"
#include "media/audio/audio_unittest_util.h"
#include "media/audio/win/core_audio_util_win.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using base::win::ScopedCOMInitializer;
namespace media {
constexpr char kFirstTestDevice[] = "test_device_0";
constexpr char kSecondTestDevice[] = "test_device_1";
class AudioDeviceListenerWinTest
: public testing::Test,
public base::SystemMonitor::DevicesChangedObserver {
public:
AudioDeviceListenerWinTest() {
DCHECK(com_init_.Succeeded());
if (!CoreAudioUtil::IsSupported())
return;
system_monitor_.AddDevicesChangedObserver(this);
output_device_listener_ = std::make_unique<AudioDeviceListenerWin>(
base::BindRepeating(&AudioDeviceListenerWinTest::OnDeviceChange,
base::Unretained(this)));
tick_clock_.Advance(base::Seconds(12345));
output_device_listener_->tick_clock_ = &tick_clock_;
}
AudioDeviceListenerWinTest(const AudioDeviceListenerWinTest&) = delete;
AudioDeviceListenerWinTest& operator=(const AudioDeviceListenerWinTest&) =
delete;
~AudioDeviceListenerWinTest() override {
system_monitor_.RemoveDevicesChangedObserver(this);
}
void AdvanceLastDeviceChangeTime() {
tick_clock_.Advance(AudioDeviceListenerWin::kDeviceChangeLimit +
base::Milliseconds(1));
}
// Simulate a device change where no output devices are available.
bool SimulateNullDefaultOutputDeviceChange() {
auto result = output_device_listener_->OnDefaultDeviceChanged(
static_cast<EDataFlow>(eConsole), static_cast<ERole>(eRender), nullptr);
task_environment_.RunUntilIdle();
return result == S_OK;
}
bool SimulateDefaultOutputDeviceChange(const char* new_device_id) {
auto result = output_device_listener_->OnDefaultDeviceChanged(
static_cast<EDataFlow>(eConsole), static_cast<ERole>(eRender),
base::ASCIIToWide(new_device_id).c_str());
task_environment_.RunUntilIdle();
return result == S_OK;
}
MOCK_METHOD0(OnDeviceChange, void());
MOCK_METHOD1(OnDevicesChanged, void(base::SystemMonitor::DeviceType));
private:
ScopedCOMInitializer com_init_;
base::test::TaskEnvironment task_environment_;
base::SystemMonitor system_monitor_;
base::SimpleTestTickClock tick_clock_;
std::unique_ptr<AudioDeviceListenerWin> output_device_listener_;
};
// Simulate a device change events and ensure we get the right callbacks.
TEST_F(AudioDeviceListenerWinTest, OutputDeviceChange) {
ABORT_AUDIO_TEST_IF_NOT(CoreAudioUtil::IsSupported());
EXPECT_CALL(*this, OnDeviceChange()).Times(1);
EXPECT_CALL(*this, OnDevicesChanged(base::SystemMonitor::DEVTYPE_AUDIO))
.Times(1);
ASSERT_TRUE(SimulateDefaultOutputDeviceChange(kFirstTestDevice));
testing::Mock::VerifyAndClear(this);
AdvanceLastDeviceChangeTime();
EXPECT_CALL(*this, OnDeviceChange()).Times(1);
EXPECT_CALL(*this, OnDevicesChanged(base::SystemMonitor::DEVTYPE_AUDIO))
.Times(1);
ASSERT_TRUE(SimulateDefaultOutputDeviceChange(kSecondTestDevice));
// Since it occurs too soon, the second device event shouldn't call
// OnDeviceChange(), but it should notify OnDevicesChanged().
EXPECT_CALL(*this, OnDeviceChange()).Times(0);
EXPECT_CALL(*this, OnDevicesChanged(base::SystemMonitor::DEVTYPE_AUDIO))
.Times(1);
ASSERT_TRUE(SimulateDefaultOutputDeviceChange(kSecondTestDevice));
}
// Ensure that null output device changes don't crash. Simulates the situation
// where we have no output devices.
TEST_F(AudioDeviceListenerWinTest, NullOutputDeviceChange) {
ABORT_AUDIO_TEST_IF_NOT(CoreAudioUtil::IsSupported());
EXPECT_CALL(*this, OnDeviceChange()).Times(1);
EXPECT_CALL(*this, OnDevicesChanged(base::SystemMonitor::DEVTYPE_AUDIO))
.Times(1);
ASSERT_TRUE(SimulateNullDefaultOutputDeviceChange());
testing::Mock::VerifyAndClear(this);
AdvanceLastDeviceChangeTime();
EXPECT_CALL(*this, OnDeviceChange()).Times(1);
EXPECT_CALL(*this, OnDevicesChanged(base::SystemMonitor::DEVTYPE_AUDIO))
.Times(1);
ASSERT_TRUE(SimulateDefaultOutputDeviceChange(kFirstTestDevice));
// Since it occurs too soon, the second device event shouldn't call
// OnDeviceChange(), but it should notify OnDevicesChanged().
testing::Mock::VerifyAndClear(this);
EXPECT_CALL(*this, OnDevicesChanged(base::SystemMonitor::DEVTYPE_AUDIO))
.Times(1);
ASSERT_TRUE(SimulateNullDefaultOutputDeviceChange());
}
} // namespace media