// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ash/extensions/file_manager/device_event_router.h"
#include <memory>
#include <string>
#include <vector>
#include "base/run_loop.h"
#include "base/test/task_environment.h"
#include "chrome/browser/ash/file_manager/volume_manager.h"
#include "chromeos/ash/components/disks/disk.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace file_manager {
namespace {
namespace file_manager_private = extensions::api::file_manager_private;
using ::ash::disks::Disk;
const char kTestDevicePath[] = "/device/test";
struct DeviceEvent {
extensions::api::file_manager_private::DeviceEventType type;
std::string device_path;
std::string device_label;
};
// DeviceEventRouter implementation for testing.
class DeviceEventRouterImpl : public DeviceEventRouter {
public:
explicit DeviceEventRouterImpl(
SystemNotificationManager* notification_manager)
: DeviceEventRouter(notification_manager, base::Seconds(0)),
external_storage_disabled(false) {}
DeviceEventRouterImpl(const DeviceEventRouterImpl&) = delete;
DeviceEventRouterImpl& operator=(const DeviceEventRouterImpl&) = delete;
~DeviceEventRouterImpl() override = default;
// DeviceEventRouter overrides.
void OnDeviceEvent(file_manager_private::DeviceEventType type,
const std::string& device_path,
const std::string& device_label) override {
DeviceEvent event;
event.type = type;
event.device_path = device_path;
event.device_label = device_label;
events.push_back(event);
}
// DeviceEventRouter overrides.
bool IsExternalStorageDisabled() override {
return external_storage_disabled;
}
// List of dispatched events.
std::vector<DeviceEvent> events;
// Flag returned by |IsExternalStorageDisabled|.
bool external_storage_disabled;
};
} // namespace
class DeviceEventRouterTest : public testing::Test {
protected:
void SetUp() override {
device_event_router = std::make_unique<DeviceEventRouterImpl>(nullptr);
}
// Creates a disk instance with |device_path| and |mount_path| for testing.
Disk CreateTestDisk(const std::string& device_path,
const std::string& mount_path,
bool is_read_only_hardware,
bool is_mounted) {
return *Disk::Builder()
.SetDevicePath(device_path)
.SetMountPath(mount_path)
.SetStorageDevicePath(device_path)
.SetIsReadOnlyHardware(is_read_only_hardware)
.SetFileSystemType("vfat")
.SetIsMounted(is_mounted)
.Build();
}
std::unique_ptr<DeviceEventRouterImpl> device_event_router;
private:
base::test::SingleThreadTaskEnvironment task_environment_;
};
TEST_F(DeviceEventRouterTest, AddAndRemoveDevice) {
const Disk disk1 =
CreateTestDisk("/device/test", "/mount/path1", false, true);
const Disk disk1_unmounted = CreateTestDisk("/device/test", "", false, false);
std::unique_ptr<Volume> volume(Volume::CreateForTesting(
base::FilePath(FILE_PATH_LITERAL("/device/test")),
base::FilePath(FILE_PATH_LITERAL("/mount/path1"))));
device_event_router->OnDeviceAdded("/device/test");
device_event_router->OnDiskAdded(disk1, true);
device_event_router->OnVolumeMounted(ash::MountError::kSuccess,
*volume.get());
device_event_router->OnVolumeUnmounted(ash::MountError::kSuccess,
*volume.get());
device_event_router->OnDiskRemoved(disk1_unmounted);
device_event_router->OnDeviceRemoved("/device/test");
ASSERT_EQ(1u, device_event_router->events.size());
EXPECT_EQ(file_manager_private::DeviceEventType::kRemoved,
device_event_router->events[0].type);
EXPECT_EQ("/device/test", device_event_router->events[0].device_path);
}
TEST_F(DeviceEventRouterTest, HardUnplugged) {
const Disk disk1 =
CreateTestDisk("/device/test", "/mount/path1", false, true);
const Disk disk2 =
CreateTestDisk("/device/test", "/mount/path2", false, true);
device_event_router->OnDeviceAdded("/device/test");
device_event_router->OnDiskAdded(disk1, true);
device_event_router->OnDiskAdded(disk2, true);
device_event_router->OnDiskRemoved(disk1);
device_event_router->OnDiskRemoved(disk2);
device_event_router->OnDeviceRemoved(kTestDevicePath);
base::RunLoop().RunUntilIdle();
ASSERT_EQ(2u, device_event_router->events.size());
EXPECT_EQ(file_manager_private::DeviceEventType::kHardUnplugged,
device_event_router->events[0].type);
EXPECT_EQ("/device/test", device_event_router->events[0].device_path);
EXPECT_EQ(file_manager_private::DeviceEventType::kRemoved,
device_event_router->events[1].type);
EXPECT_EQ("/device/test", device_event_router->events[1].device_path);
}
TEST_F(DeviceEventRouterTest, HardUnplugReadOnlyVolume) {
const Disk disk1 = CreateTestDisk("/device/test", "/mount/path1", true, true);
const Disk disk2 = CreateTestDisk("/device/test", "/mount/path2", true, true);
device_event_router->OnDeviceAdded("/device/test");
device_event_router->OnDiskAdded(disk1, true);
device_event_router->OnDiskAdded(disk2, true);
device_event_router->OnDiskRemoved(disk1);
device_event_router->OnDiskRemoved(disk2);
device_event_router->OnDeviceRemoved(kTestDevicePath);
base::RunLoop().RunUntilIdle();
ASSERT_EQ(1u, device_event_router->events.size());
EXPECT_EQ(file_manager_private::DeviceEventType::kRemoved,
device_event_router->events[0].type);
EXPECT_EQ("/device/test", device_event_router->events[0].device_path);
// Should not warn hard unplug because the volumes are read-only.
}
TEST_F(DeviceEventRouterTest, HardUnpluggedNotMounted) {
const Disk disk1 = CreateTestDisk("/device/test", "", false, false);
const Disk disk2 =
CreateTestDisk("/device/test", "/mount/path2", true, false);
device_event_router->OnDeviceAdded("/device/test");
device_event_router->OnDiskAdded(disk1, true);
device_event_router->OnDiskAdded(disk2, true);
device_event_router->OnDiskRemoved(disk1);
device_event_router->OnDiskRemoved(disk2);
device_event_router->OnDeviceRemoved(kTestDevicePath);
base::RunLoop().RunUntilIdle();
ASSERT_EQ(1u, device_event_router->events.size());
EXPECT_EQ(file_manager_private::DeviceEventType::kRemoved,
device_event_router->events[0].type);
EXPECT_EQ("/device/test", device_event_router->events[0].device_path);
// Should not warn hard unplug because the volumes are not mounted.
}
} // namespace file_manager
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