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- // Copyright 2018 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 "services/audio/device_notifier.h"
- #include <memory>
- #include <utility>
- #include "base/system/system_monitor.h"
- #include "base/test/task_environment.h"
- #include "mojo/public/cpp/bindings/pending_receiver.h"
- #include "mojo/public/cpp/bindings/receiver.h"
- #include "mojo/public/cpp/bindings/remote.h"
- #include "services/audio/public/mojom/device_notifications.mojom.h"
- #include "testing/gmock/include/gmock/gmock.h"
- #include "testing/gtest/include/gtest/gtest.h"
- namespace audio {
- namespace {
- class MockDeviceListener : public mojom::DeviceListener {
- public:
- explicit MockDeviceListener(
- mojo::PendingReceiver<audio::mojom::DeviceListener> receiver)
- : receiver_(this, std::move(receiver)) {}
- MockDeviceListener(const MockDeviceListener&) = delete;
- MockDeviceListener& operator=(const MockDeviceListener&) = delete;
- MOCK_METHOD0(DevicesChanged, void());
- private:
- mojo::Receiver<audio::mojom::DeviceListener> receiver_;
- };
- } // namespace
- class DeviceNotifierTest : public ::testing::Test {
- public:
- DeviceNotifierTest()
- : system_monitor_(std::make_unique<base::SystemMonitor>()) {}
- DeviceNotifierTest(const DeviceNotifierTest&) = delete;
- DeviceNotifierTest& operator=(const DeviceNotifierTest&) = delete;
- protected:
- void CreateDeviceNotifier() {
- device_notifier_ = std::make_unique<DeviceNotifier>();
- device_notifier_->Bind(
- remote_device_notifier_.BindNewPipeAndPassReceiver());
- }
- void DestroyDeviceNotifier() {
- remote_device_notifier_.reset();
- task_environment_.RunUntilIdle();
- }
- base::test::TaskEnvironment task_environment_;
- mojo::Remote<mojom::DeviceNotifier> remote_device_notifier_;
- private:
- std::unique_ptr<base::SystemMonitor> system_monitor_;
- std::unique_ptr<DeviceNotifier> device_notifier_;
- };
- TEST_F(DeviceNotifierTest, DeviceNotifierNotifies) {
- CreateDeviceNotifier();
- mojo::PendingRemote<mojom::DeviceListener> remote_device_listener;
- MockDeviceListener listener(
- remote_device_listener.InitWithNewPipeAndPassReceiver());
- // Simulate audio-device event, but no callback should be invoked before the
- // listener is registered.
- EXPECT_CALL(listener, DevicesChanged()).Times(0);
- base::SystemMonitor::Get()->ProcessDevicesChanged(
- base::SystemMonitor::DEVTYPE_AUDIO);
- task_environment_.RunUntilIdle();
- // Register the listener and simulate an audio-device event.
- remote_device_notifier_->RegisterListener(std::move(remote_device_listener));
- EXPECT_CALL(listener, DevicesChanged());
- base::SystemMonitor::Get()->ProcessDevicesChanged(
- base::SystemMonitor::DEVTYPE_AUDIO);
- task_environment_.RunUntilIdle();
- // Simulate a video-device event, which should be ignored.
- EXPECT_CALL(listener, DevicesChanged()).Times(0);
- base::SystemMonitor::Get()->ProcessDevicesChanged(
- base::SystemMonitor::DEVTYPE_VIDEO_CAPTURE);
- task_environment_.RunUntilIdle();
- DestroyDeviceNotifier();
- }
- } // namespace audio
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