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// Copyright 2021 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/pcie_peripheral/ash_usb_detector.h"
#include <memory>
#include "base/timer/mock_timer.h"
#include "base/timer/timer.h"
#include "chrome/test/base/browser_with_test_window_test.h"
#include "chromeos/ash/components/dbus/pciguard/pciguard_client.h"
#include "chromeos/ash/components/peripheral_notification/peripheral_notification_manager.h"
#include "services/device/public/cpp/test/fake_usb_device_manager.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace ash {
namespace {
// USB device product name.
const char* kProductName_1 = "Google Product A";
const char* kManufacturerName = "Google";
} // namespace
class AshUsbDetectorTest : public BrowserWithTestWindowTest {
public:
AshUsbDetectorTest() = default;
AshUsbDetectorTest(const AshUsbDetectorTest&) = delete;
AshUsbDetectorTest& operator=(const AshUsbDetectorTest&) = delete;
~AshUsbDetectorTest() override = default;
void SetUp() override {
BrowserWithTestWindowTest::SetUp();
ash_usb_detector_ = std::make_unique<AshUsbDetector>();
// Set a fake USB device manager before ConnectToDeviceManager().
mojo::PendingRemote<device::mojom::UsbDeviceManager> device_manager;
device_manager_.AddReceiver(
device_manager.InitWithNewPipeAndPassReceiver());
AshUsbDetector::Get()->SetDeviceManagerForTesting(
std::move(device_manager));
PciguardClient::InitializeFake();
PeripheralNotificationManager::Initialize(
/*is_guest_session=*/false,
/*is_pcie_tunneling_allowed=*/false);
}
void TearDown() override {
ash_usb_detector_.reset();
PeripheralNotificationManager::Shutdown();
PciguardClient::Shutdown();
BrowserWithTestWindowTest::TearDown();
}
void ConnectToDeviceManager() {
AshUsbDetector::Get()->ConnectToDeviceManager();
}
int32_t GetOnDeviceCheckedCount() {
return ash_usb_detector_->GetOnDeviceCheckedCountForTesting();
}
int32_t GetNumRequestForUpdates() {
return ash_usb_detector_->num_request_for_fetch_updates_for_testing();
}
void SetIsTesting() { ash_usb_detector_->SetIsTesting(/*is_testing=*/true); }
void SetFetchUpdatesTimerForTesting(
std::unique_ptr<base::RepeatingTimer> timer) {
ash_usb_detector_->SetFetchUpdatesTimerForTesting(std::move(timer));
}
device::FakeUsbDeviceManager device_manager_;
std::unique_ptr<AshUsbDetector> ash_usb_detector_;
};
TEST_F(AshUsbDetectorTest, AddOneDevice) {
ConnectToDeviceManager();
base::RunLoop().RunUntilIdle();
auto device = base::MakeRefCounted<device::FakeUsbDeviceInfo>(
/*vendor_id=*/0, /*product_id=*/1, kManufacturerName, kProductName_1,
/*serial_number=*/"002");
device_manager_.AddDevice(device);
base::RunLoop().RunUntilIdle();
EXPECT_EQ(1, GetOnDeviceCheckedCount());
}
TEST_F(AshUsbDetectorTest, RepeatRequestUpdates) {
SetIsTesting();
ConnectToDeviceManager();
base::RunLoop().RunUntilIdle();
// Set up mock timer.
auto timer = std::make_unique<base::MockRepeatingTimer>();
auto* timer_ptr = timer.get();
SetFetchUpdatesTimerForTesting(std::move(timer));
// Add a device.
auto device = base::MakeRefCounted<device::FakeUsbDeviceInfo>(
/*vendor_id=*/0, /*product_id=*/1, kManufacturerName, kProductName_1,
/*serial_number=*/"002");
device_manager_.AddDevice(device);
base::RunLoop().RunUntilIdle();
// Continue the timer to first iteration.
timer_ptr->Fire();
base::RunLoop().RunUntilIdle();
EXPECT_EQ(1, GetNumRequestForUpdates());
// Continue the timer to next iteration.
timer_ptr->Fire();
base::RunLoop().RunUntilIdle();
EXPECT_EQ(2, GetNumRequestForUpdates());
// Continue the timer to next iteration.
timer_ptr->Fire();
base::RunLoop().RunUntilIdle();
EXPECT_EQ(3, GetNumRequestForUpdates());
}
TEST_F(AshUsbDetectorTest, RepeatRequestUpdatesWithInterrupts) {
SetIsTesting();
ConnectToDeviceManager();
base::RunLoop().RunUntilIdle();
// Set up mock timer.
auto timer = std::make_unique<base::MockRepeatingTimer>();
auto* timer_ptr = timer.get();
SetFetchUpdatesTimerForTesting(std::move(timer));
// Add a device.
auto device = base::MakeRefCounted<device::FakeUsbDeviceInfo>(
/*vendor_id=*/0, /*product_id=*/1, kManufacturerName, kProductName_1,
/*serial_number=*/"002");
device_manager_.AddDevice(device);
base::RunLoop().RunUntilIdle();
timer_ptr->Fire();
base::RunLoop().RunUntilIdle();
EXPECT_EQ(1, GetNumRequestForUpdates());
timer_ptr->Fire();
base::RunLoop().RunUntilIdle();
EXPECT_EQ(2, GetNumRequestForUpdates());
// Now simulate removing a device. This will reset the repeat counter, expect
// 3 more repeats.
device_manager_.RemoveDevice(device);
base::RunLoop().RunUntilIdle();
timer_ptr->Fire();
base::RunLoop().RunUntilIdle();
EXPECT_EQ(3, GetNumRequestForUpdates());
timer_ptr->Fire();
base::RunLoop().RunUntilIdle();
EXPECT_EQ(4, GetNumRequestForUpdates());
timer_ptr->Fire();
base::RunLoop().RunUntilIdle();
EXPECT_EQ(5, GetNumRequestForUpdates());
}
} // namespace ash
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