// Copyright 2015 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 <string>

#include "base/macros.h"
#include "base/strings/string16.h"
#include "base/strings/utf_string_conversions.h"
#include "base/test/metrics/histogram_tester.h"
#include "chrome/browser/chromeos/profiles/profile_helper.h"
#include "chrome/browser/notifications/notification_display_service.h"
#include "chrome/browser/notifications/notification_display_service_tester.h"
#include "chrome/browser/notifications/system_notification_helper.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/browser/usb/web_usb_detector.h"
#include "chrome/test/base/browser_with_test_window_test.h"
#include "chrome/test/base/testing_browser_process.h"
#include "chrome/test/base/testing_profile_manager.h"
#include "device/base/mock_device_client.h"
#include "device/usb/mock_usb_device.h"
#include "device/usb/mock_usb_service.h"
#include "net/base/network_change_notifier.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/message_center/public/cpp/notification.h"
#include "ui/message_center/public/cpp/notification_delegate.h"
#include "url/gurl.h"

// These tests are disabled because WebUsbDetector::Initialize is a noop on
// Windows due to jank and hangs caused by enumerating devices.
// https://crbug.com/656702
#if !defined(OS_WIN)
namespace {

const char* kProfileName = "test@example.com";

// USB device product name.
const char* kProductName_1 = "Google Product A";
const char* kProductName_2 = "Google Product B";
const char* kProductName_3 = "Google Product C";

// USB device landing page.
const char* kLandingPage_1 = "https://www.google.com/A";
const char* kLandingPage_2 = "https://www.google.com/B";
const char* kLandingPage_3 = "https://www.google.com/C";

}  // namespace

class WebUsbDetectorTest : public BrowserWithTestWindowTest {
 public:
  WebUsbDetectorTest() {}
  ~WebUsbDetectorTest() override = default;

  TestingProfile* CreateProfile() override {
    return profile_manager()->CreateTestingProfile(kProfileName);
  }

  void SetUp() override {
    // Avoid the leaky NetworkChangeNotifier created during the initialization
    // of the global leaky singleton NetworkService which affects subsequent
    // unit tests.
    // See https://bugs.chromium.org/p/chromium/issues/detail?id=867414
    // and
    // https://groups.google.com/a/chromium.org/forum/#!msg/network-service-dev/IgNFrq1zFHI/FNCAplsCCQAJ
    network_change_notifier_.reset(net::NetworkChangeNotifier::CreateMock());

    BrowserWithTestWindowTest::SetUp();
#if defined(OS_CHROMEOS)
    profile_manager()->SetLoggedIn(true);
    chromeos::ProfileHelper::Get()->SetActiveUserIdForTesting(kProfileName);
#endif
    BrowserList::SetLastActive(browser());
    display_service_ = std::make_unique<NotificationDisplayServiceTester>(
        SystemNotificationHelper::GetProfileForTesting());

    web_usb_detector_.reset(new WebUsbDetector());
  }

  void TearDown() override {
    BrowserWithTestWindowTest::TearDown();
    web_usb_detector_.reset(nullptr);
  }

  void Initialize() { web_usb_detector_->Initialize(); }

 protected:
  device::MockDeviceClient device_client_;
  std::unique_ptr<WebUsbDetector> web_usb_detector_;
  std::unique_ptr<NotificationDisplayServiceTester> display_service_;

 private:
  std::unique_ptr<net::NetworkChangeNotifier> network_change_notifier_;
  DISALLOW_COPY_AND_ASSIGN(WebUsbDetectorTest);
};

TEST_F(WebUsbDetectorTest, UsbDeviceAddedAndRemoved) {
  base::string16 product_name = base::UTF8ToUTF16(kProductName_1);
  GURL landing_page(kLandingPage_1);
  scoped_refptr<device::MockUsbDevice> device(new device::MockUsbDevice(
      0, 1, "Google", kProductName_1, "002", landing_page));
  std::string guid = device->guid();

  Initialize();

  device_client_.usb_service()->AddDevice(device);
  base::Optional<message_center::Notification> notification =
      display_service_->GetNotification(guid);
  ASSERT_TRUE(notification);
  base::string16 expected_title =
      base::ASCIIToUTF16("Google Product A detected");
  EXPECT_EQ(expected_title, notification->title());
  base::string16 expected_message =
      base::ASCIIToUTF16("Go to www.google.com to connect.");
  EXPECT_EQ(expected_message, notification->message());
  EXPECT_TRUE(notification->delegate() != nullptr);

  device_client_.usb_service()->RemoveDevice(device);
  // Device is removed, so notification should be removed too.
  EXPECT_FALSE(display_service_->GetNotification(guid));
}

TEST_F(WebUsbDetectorTest, UsbDeviceWithoutProductNameAddedAndRemoved) {
  std::string product_name = "";
  GURL landing_page(kLandingPage_1);
  scoped_refptr<device::MockUsbDevice> device(new device::MockUsbDevice(
      0, 1, "Google", product_name, "002", landing_page));
  std::string guid = device->guid();

  Initialize();

  device_client_.usb_service()->AddDevice(device);
  // For device without product name, no notification is generated.
  EXPECT_FALSE(display_service_->GetNotification(guid));

  device_client_.usb_service()->RemoveDevice(device);
  EXPECT_FALSE(display_service_->GetNotification(guid));
}

TEST_F(WebUsbDetectorTest, UsbDeviceWithoutLandingPageAddedAndRemoved) {
  GURL landing_page("");
  scoped_refptr<device::MockUsbDevice> device(new device::MockUsbDevice(
      0, 1, "Google", kProductName_1, "002", landing_page));
  std::string guid = device->guid();

  Initialize();

  device_client_.usb_service()->AddDevice(device);
  // For device without landing page, no notification is generated.
  EXPECT_FALSE(display_service_->GetNotification(guid));

  device_client_.usb_service()->RemoveDevice(device);
  EXPECT_FALSE(display_service_->GetNotification(guid));
}

TEST_F(WebUsbDetectorTest, UsbDeviceWasThereBeforeAndThenRemoved) {
  GURL landing_page(kLandingPage_1);
  scoped_refptr<device::MockUsbDevice> device(new device::MockUsbDevice(
      0, 1, "Google", kProductName_1, "002", landing_page));
  std::string guid = device->guid();

  // USB device was added before web_usb_detector was created.
  device_client_.usb_service()->AddDevice(device);
  EXPECT_FALSE(display_service_->GetNotification(guid));

  Initialize();

  device_client_.usb_service()->RemoveDevice(device);
  EXPECT_FALSE(display_service_->GetNotification(guid));
}

TEST_F(
    WebUsbDetectorTest,
    ThreeUsbDevicesWereThereBeforeAndThenRemovedBeforeWebUsbDetectorWasCreated) {
  base::string16 product_name_1 = base::UTF8ToUTF16(kProductName_1);
  GURL landing_page_1(kLandingPage_1);
  scoped_refptr<device::MockUsbDevice> device_1(new device::MockUsbDevice(
      0, 1, "Google", kProductName_1, "002", landing_page_1));
  std::string guid_1 = device_1->guid();

  base::string16 product_name_2 = base::UTF8ToUTF16(kProductName_2);
  GURL landing_page_2(kLandingPage_2);
  scoped_refptr<device::MockUsbDevice> device_2(new device::MockUsbDevice(
      3, 4, "Google", kProductName_2, "005", landing_page_2));
  std::string guid_2 = device_2->guid();

  base::string16 product_name_3 = base::UTF8ToUTF16(kProductName_3);
  GURL landing_page_3(kLandingPage_3);
  scoped_refptr<device::MockUsbDevice> device_3(new device::MockUsbDevice(
      6, 7, "Google", kProductName_3, "008", landing_page_3));
  std::string guid_3 = device_3->guid();

  // Three usb devices were added and removed before web_usb_detector was
  // created.
  device_client_.usb_service()->AddDevice(device_1);
  EXPECT_FALSE(display_service_->GetNotification(guid_1));
  device_client_.usb_service()->AddDevice(device_2);
  EXPECT_FALSE(display_service_->GetNotification(guid_2));
  device_client_.usb_service()->AddDevice(device_3);
  EXPECT_FALSE(display_service_->GetNotification(guid_3));

  device_client_.usb_service()->RemoveDevice(device_1);
  EXPECT_FALSE(display_service_->GetNotification(guid_1));
  device_client_.usb_service()->RemoveDevice(device_2);
  EXPECT_FALSE(display_service_->GetNotification(guid_2));
  device_client_.usb_service()->RemoveDevice(device_3);
  EXPECT_FALSE(display_service_->GetNotification(guid_3));

  WebUsbDetector web_usb_detector;
  web_usb_detector.Initialize();
}

TEST_F(
    WebUsbDetectorTest,
    ThreeUsbDevicesWereThereBeforeAndThenRemovedAfterWebUsbDetectorWasCreated) {
  base::string16 product_name_1 = base::UTF8ToUTF16(kProductName_1);
  GURL landing_page_1(kLandingPage_1);
  scoped_refptr<device::MockUsbDevice> device_1(new device::MockUsbDevice(
      0, 1, "Google", kProductName_1, "002", landing_page_1));
  std::string guid_1 = device_1->guid();

  base::string16 product_name_2 = base::UTF8ToUTF16(kProductName_2);
  GURL landing_page_2(kLandingPage_2);
  scoped_refptr<device::MockUsbDevice> device_2(new device::MockUsbDevice(
      3, 4, "Google", kProductName_2, "005", landing_page_2));
  std::string guid_2 = device_2->guid();

  base::string16 product_name_3 = base::UTF8ToUTF16(kProductName_3);
  GURL landing_page_3(kLandingPage_3);
  scoped_refptr<device::MockUsbDevice> device_3(new device::MockUsbDevice(
      6, 7, "Google", kProductName_3, "008", landing_page_3));
  std::string guid_3 = device_3->guid();

  // Three usb devices were added before web_usb_detector was created.
  device_client_.usb_service()->AddDevice(device_1);
  EXPECT_FALSE(display_service_->GetNotification(guid_1));
  device_client_.usb_service()->AddDevice(device_2);
  EXPECT_FALSE(display_service_->GetNotification(guid_2));
  device_client_.usb_service()->AddDevice(device_3);
  EXPECT_FALSE(display_service_->GetNotification(guid_3));

  Initialize();

  device_client_.usb_service()->RemoveDevice(device_1);
  EXPECT_FALSE(display_service_->GetNotification(guid_1));
  device_client_.usb_service()->RemoveDevice(device_2);
  EXPECT_FALSE(display_service_->GetNotification(guid_2));
  device_client_.usb_service()->RemoveDevice(device_3);
  EXPECT_FALSE(display_service_->GetNotification(guid_3));
}

TEST_F(WebUsbDetectorTest,
       TwoUsbDevicesWereThereBeforeAndThenRemovedAndNewUsbDeviceAdded) {
  base::string16 product_name_1 = base::UTF8ToUTF16(kProductName_1);
  GURL landing_page_1(kLandingPage_1);
  scoped_refptr<device::MockUsbDevice> device_1(new device::MockUsbDevice(
      0, 1, "Google", kProductName_1, "002", landing_page_1));
  std::string guid_1 = device_1->guid();

  base::string16 product_name_2 = base::UTF8ToUTF16(kProductName_2);
  GURL landing_page_2(kLandingPage_2);
  scoped_refptr<device::MockUsbDevice> device_2(new device::MockUsbDevice(
      3, 4, "Google", kProductName_2, "005", landing_page_2));
  std::string guid_2 = device_2->guid();

  base::string16 product_name_3 = base::UTF8ToUTF16(kProductName_3);
  GURL landing_page_3(kLandingPage_3);
  scoped_refptr<device::MockUsbDevice> device_3(new device::MockUsbDevice(
      6, 7, "Google", kProductName_3, "008", landing_page_3));
  std::string guid_3 = device_3->guid();

  // Two usb devices were added before web_usb_detector was created.
  device_client_.usb_service()->AddDevice(device_1);
  EXPECT_FALSE(display_service_->GetNotification(guid_1));
  device_client_.usb_service()->AddDevice(device_2);
  EXPECT_FALSE(display_service_->GetNotification(guid_2));

  Initialize();

  device_client_.usb_service()->RemoveDevice(device_1);
  EXPECT_FALSE(display_service_->GetNotification(guid_1));

  device_client_.usb_service()->AddDevice(device_2);
  base::Optional<message_center::Notification> notification =
      display_service_->GetNotification(guid_2);
  ASSERT_TRUE(notification);
  base::string16 expected_title =
      base::ASCIIToUTF16("Google Product B detected");
  EXPECT_EQ(expected_title, notification->title());
  base::string16 expected_message =
      base::ASCIIToUTF16("Go to www.google.com to connect.");
  EXPECT_EQ(expected_message, notification->message());
  EXPECT_TRUE(notification->delegate() != nullptr);

  device_client_.usb_service()->RemoveDevice(device_2);
  EXPECT_FALSE(display_service_->GetNotification(guid_2));
}

TEST_F(WebUsbDetectorTest, ThreeUsbDevicesAddedAndRemoved) {
  base::string16 product_name_1 = base::UTF8ToUTF16(kProductName_1);
  GURL landing_page_1(kLandingPage_1);
  scoped_refptr<device::MockUsbDevice> device_1(new device::MockUsbDevice(
      0, 1, "Google", kProductName_1, "002", landing_page_1));
  std::string guid_1 = device_1->guid();

  base::string16 product_name_2 = base::UTF8ToUTF16(kProductName_2);
  GURL landing_page_2(kLandingPage_2);
  scoped_refptr<device::MockUsbDevice> device_2(new device::MockUsbDevice(
      3, 4, "Google", kProductName_2, "005", landing_page_2));
  std::string guid_2 = device_2->guid();

  base::string16 product_name_3 = base::UTF8ToUTF16(kProductName_3);
  GURL landing_page_3(kLandingPage_3);
  scoped_refptr<device::MockUsbDevice> device_3(new device::MockUsbDevice(
      6, 7, "Google", kProductName_3, "008", landing_page_3));
  std::string guid_3 = device_3->guid();

  Initialize();

  device_client_.usb_service()->AddDevice(device_1);
  base::Optional<message_center::Notification> notification_1 =
      display_service_->GetNotification(guid_1);
  ASSERT_TRUE(notification_1);
  base::string16 expected_title_1 =
      base::ASCIIToUTF16("Google Product A detected");
  EXPECT_EQ(expected_title_1, notification_1->title());
  base::string16 expected_message_1 =
      base::ASCIIToUTF16("Go to www.google.com to connect.");
  EXPECT_EQ(expected_message_1, notification_1->message());
  EXPECT_TRUE(notification_1->delegate() != nullptr);

  device_client_.usb_service()->RemoveDevice(device_1);
  EXPECT_FALSE(display_service_->GetNotification(guid_1));

  device_client_.usb_service()->AddDevice(device_2);
  base::Optional<message_center::Notification> notification_2 =
      display_service_->GetNotification(guid_2);
  ASSERT_TRUE(notification_2);
  base::string16 expected_title_2 =
      base::ASCIIToUTF16("Google Product B detected");
  EXPECT_EQ(expected_title_2, notification_2->title());
  base::string16 expected_message_2 =
      base::ASCIIToUTF16("Go to www.google.com to connect.");
  EXPECT_EQ(expected_message_2, notification_2->message());
  EXPECT_TRUE(notification_2->delegate() != nullptr);

  device_client_.usb_service()->RemoveDevice(device_2);
  EXPECT_FALSE(display_service_->GetNotification(guid_2));

  device_client_.usb_service()->AddDevice(device_3);
  base::Optional<message_center::Notification> notification_3 =
      display_service_->GetNotification(guid_3);
  ASSERT_TRUE(notification_3);
  base::string16 expected_title_3 =
      base::ASCIIToUTF16("Google Product C detected");
  EXPECT_EQ(expected_title_3, notification_3->title());
  base::string16 expected_message_3 =
      base::ASCIIToUTF16("Go to www.google.com to connect.");
  EXPECT_EQ(expected_message_3, notification_3->message());
  EXPECT_TRUE(notification_3->delegate() != nullptr);

  device_client_.usb_service()->RemoveDevice(device_3);
  EXPECT_FALSE(display_service_->GetNotification(guid_3));
}

TEST_F(WebUsbDetectorTest, ThreeUsbDeviceAddedAndRemovedDifferentOrder) {
  base::string16 product_name_1 = base::UTF8ToUTF16(kProductName_1);
  GURL landing_page_1(kLandingPage_1);
  scoped_refptr<device::MockUsbDevice> device_1(new device::MockUsbDevice(
      0, 1, "Google", kProductName_1, "002", landing_page_1));
  std::string guid_1 = device_1->guid();

  base::string16 product_name_2 = base::UTF8ToUTF16(kProductName_2);
  GURL landing_page_2(kLandingPage_2);
  scoped_refptr<device::MockUsbDevice> device_2(new device::MockUsbDevice(
      3, 4, "Google", kProductName_2, "005", landing_page_2));
  std::string guid_2 = device_2->guid();

  base::string16 product_name_3 = base::UTF8ToUTF16(kProductName_3);
  GURL landing_page_3(kLandingPage_3);
  scoped_refptr<device::MockUsbDevice> device_3(new device::MockUsbDevice(
      6, 7, "Google", kProductName_3, "008", landing_page_3));
  std::string guid_3 = device_3->guid();

  Initialize();

  device_client_.usb_service()->AddDevice(device_1);
  base::Optional<message_center::Notification> notification_1 =
      display_service_->GetNotification(guid_1);
  ASSERT_TRUE(notification_1);
  base::string16 expected_title_1 =
      base::ASCIIToUTF16("Google Product A detected");
  EXPECT_EQ(expected_title_1, notification_1->title());
  base::string16 expected_message_1 =
      base::ASCIIToUTF16("Go to www.google.com to connect.");
  EXPECT_EQ(expected_message_1, notification_1->message());
  EXPECT_TRUE(notification_1->delegate() != nullptr);

  device_client_.usb_service()->AddDevice(device_2);
  base::Optional<message_center::Notification> notification_2 =
      display_service_->GetNotification(guid_2);
  ASSERT_TRUE(notification_2);
  base::string16 expected_title_2 =
      base::ASCIIToUTF16("Google Product B detected");
  EXPECT_EQ(expected_title_2, notification_2->title());
  base::string16 expected_message_2 =
      base::ASCIIToUTF16("Go to www.google.com to connect.");
  EXPECT_EQ(expected_message_2, notification_2->message());
  EXPECT_TRUE(notification_2->delegate() != nullptr);

  device_client_.usb_service()->RemoveDevice(device_2);
  EXPECT_FALSE(display_service_->GetNotification(guid_2));

  device_client_.usb_service()->AddDevice(device_3);
  base::Optional<message_center::Notification> notification_3 =
      display_service_->GetNotification(guid_3);
  ASSERT_TRUE(notification_3);
  base::string16 expected_title_3 =
      base::ASCIIToUTF16("Google Product C detected");
  EXPECT_EQ(expected_title_3, notification_3->title());
  base::string16 expected_message_3 =
      base::ASCIIToUTF16("Go to www.google.com to connect.");
  EXPECT_EQ(expected_message_3, notification_3->message());
  EXPECT_TRUE(notification_3->delegate() != nullptr);

  device_client_.usb_service()->RemoveDevice(device_1);
  EXPECT_FALSE(display_service_->GetNotification(guid_1));

  device_client_.usb_service()->RemoveDevice(device_3);
  EXPECT_FALSE(display_service_->GetNotification(guid_3));
}

TEST_F(WebUsbDetectorTest, UsbDeviceAddedWhileActiveTabUrlIsLandingPage) {
  GURL landing_page_1(kLandingPage_1);
  scoped_refptr<device::MockUsbDevice> device_1(new device::MockUsbDevice(
      0, 1, "Google", kProductName_1, "002", landing_page_1));
  std::string guid_1 = device_1->guid();

  Initialize();

  AddTab(browser(), landing_page_1);

  device_client_.usb_service()->AddDevice(device_1);
  EXPECT_FALSE(display_service_->GetNotification(guid_1));
}

TEST_F(WebUsbDetectorTest, UsbDeviceAddedBeforeActiveTabUrlIsLandingPage) {
  GURL landing_page_1(kLandingPage_1);
  scoped_refptr<device::MockUsbDevice> device_1(new device::MockUsbDevice(
      0, 1, "Google", kProductName_1, "002", landing_page_1));
  std::string guid_1 = device_1->guid();

  base::HistogramTester histogram_tester;
  Initialize();

  device_client_.usb_service()->AddDevice(device_1);
  EXPECT_TRUE(display_service_->GetNotification(guid_1));

  AddTab(browser(), landing_page_1);
  EXPECT_FALSE(display_service_->GetNotification(guid_1));
  histogram_tester.ExpectUniqueSample("WebUsb.NotificationClosed", 3, 1);
}

TEST_F(WebUsbDetectorTest,
       NotificationClickedWhileInactiveTabUrlIsLandingPage) {
  GURL landing_page_1(kLandingPage_1);
  GURL landing_page_2(kLandingPage_2);
  scoped_refptr<device::MockUsbDevice> device_1(new device::MockUsbDevice(
      0, 1, "Google", kProductName_1, "002", landing_page_1));
  std::string guid_1 = device_1->guid();
  TabStripModel* tab_strip_model = browser()->tab_strip_model();

  base::HistogramTester histogram_tester;
  Initialize();

  AddTab(browser(), landing_page_1);
  AddTab(browser(), landing_page_2);

  device_client_.usb_service()->AddDevice(device_1);
  base::Optional<message_center::Notification> notification_1 =
      display_service_->GetNotification(guid_1);
  ASSERT_TRUE(notification_1);
  EXPECT_EQ(2, tab_strip_model->count());

  notification_1->delegate()->Click(base::nullopt, base::nullopt);
  EXPECT_EQ(2, tab_strip_model->count());
  content::WebContents* web_contents =
      tab_strip_model->GetWebContentsAt(tab_strip_model->active_index());
  EXPECT_EQ(landing_page_1, web_contents->GetURL());
  EXPECT_FALSE(display_service_->GetNotification(guid_1));
  histogram_tester.ExpectUniqueSample("WebUsb.NotificationClosed", 2, 1);
}

TEST_F(WebUsbDetectorTest, NotificationClickedWhileNoTabUrlIsLandingPage) {
  GURL landing_page_1(kLandingPage_1);
  GURL landing_page_2(kLandingPage_2);
  scoped_refptr<device::MockUsbDevice> device_1(new device::MockUsbDevice(
      0, 1, "Google", kProductName_1, "002", landing_page_1));
  std::string guid_1 = device_1->guid();
  TabStripModel* tab_strip_model = browser()->tab_strip_model();

  base::HistogramTester histogram_tester;
  Initialize();

  device_client_.usb_service()->AddDevice(device_1);
  base::Optional<message_center::Notification> notification_1 =
      display_service_->GetNotification(guid_1);
  ASSERT_TRUE(notification_1);
  EXPECT_EQ(0, tab_strip_model->count());

  notification_1->delegate()->Click(base::nullopt, base::nullopt);
  EXPECT_EQ(1, tab_strip_model->count());
  content::WebContents* web_contents =
      tab_strip_model->GetWebContentsAt(tab_strip_model->active_index());
  EXPECT_EQ(landing_page_1, web_contents->GetURL());
  EXPECT_FALSE(display_service_->GetNotification(guid_1));
  histogram_tester.ExpectUniqueSample("WebUsb.NotificationClosed", 2, 1);
}
#endif  // !OS_WIN