Lollipop MR1  |  5.1.0_r3
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// Copyright 2013 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 "ash/system/chromeos/tray_display.h"

#include "ash/display/display_manager.h"
#include "ash/root_window_controller.h"
#include "ash/screen_util.h"
#include "ash/shell.h"
#include "ash/system/tray/system_tray.h"
#include "ash/test/ash_test_base.h"
#include "ash/test/test_system_tray_delegate.h"
#include "base/strings/string16.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "grit/ash_strings.h"
#include "ui/accessibility/ax_view_state.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/gfx/display.h"
#include "ui/message_center/message_center.h"
#include "ui/message_center/notification.h"
#include "ui/message_center/notification_list.h"
#include "ui/views/controls/label.h"

namespace ash {

base::string16 GetTooltipText(const base::string16& headline,
                              const base::string16& name1,
                              const std::string& data1,
                              const base::string16& name2,
                              const std::string& data2) {
  std::vector<base::string16> lines;
  lines.push_back(headline);
  if (data1.empty()) {
    lines.push_back(name1);
  } else {
    lines.push_back(l10n_util::GetStringFUTF16(
        IDS_ASH_STATUS_TRAY_DISPLAY_SINGLE_DISPLAY,
        name1, base::UTF8ToUTF16(data1)));
  }
  if (!name2.empty()) {
    lines.push_back(l10n_util::GetStringFUTF16(
        IDS_ASH_STATUS_TRAY_DISPLAY_SINGLE_DISPLAY,
        name2, base::UTF8ToUTF16(data2)));
  }
  return JoinString(lines, '\n');
}

base::string16 GetMirroredTooltipText(const base::string16& headline,
                                      const base::string16& name,
                                      const std::string& data) {
  return GetTooltipText(headline, name, data, base::string16(), "");
}

base::string16 GetFirstDisplayName() {
  DisplayManager* display_manager = Shell::GetInstance()->display_manager();
  return base::UTF8ToUTF16(display_manager->GetDisplayNameForId(
      display_manager->first_display_id()));
}

base::string16 GetSecondDisplayName() {
  return base::UTF8ToUTF16(
      Shell::GetInstance()->display_manager()->GetDisplayNameForId(
          ScreenUtil::GetSecondaryDisplay().id()));
}

base::string16 GetMirroredDisplayName() {
  DisplayManager* display_manager = Shell::GetInstance()->display_manager();
  return base::UTF8ToUTF16(display_manager->GetDisplayNameForId(
      display_manager->mirrored_display_id()));
}

class TrayDisplayTest : public ash::test::AshTestBase {
 public:
  TrayDisplayTest();
  virtual ~TrayDisplayTest();

  virtual void SetUp() OVERRIDE;

 protected:
  SystemTray* tray() { return tray_; }
  TrayDisplay* tray_display() { return tray_display_; }

  void CloseNotification();
  bool IsDisplayVisibleInTray() const;
  base::string16 GetTrayDisplayText() const;
  void CheckAccessibleName() const;
  base::string16 GetTrayDisplayTooltipText() const;
  base::string16 GetDisplayNotificationText() const;
  base::string16 GetDisplayNotificationAdditionalText() const;

 private:
  const message_center::Notification* GetDisplayNotification() const;

  // Weak reference, owned by Shell.
  SystemTray* tray_;

  // Weak reference, owned by |tray_|.
  TrayDisplay* tray_display_;

  DISALLOW_COPY_AND_ASSIGN(TrayDisplayTest);
};

TrayDisplayTest::TrayDisplayTest() : tray_(NULL), tray_display_(NULL) {
}

TrayDisplayTest::~TrayDisplayTest() {
}

void TrayDisplayTest::SetUp() {
  ash::test::AshTestBase::SetUp();
  tray_ = Shell::GetPrimaryRootWindowController()->GetSystemTray();
  tray_display_ = new TrayDisplay(tray_);
  tray_->AddTrayItem(tray_display_);
}

void TrayDisplayTest::CloseNotification() {
  message_center::MessageCenter::Get()->RemoveNotification(
      TrayDisplay::kNotificationId, false);
  RunAllPendingInMessageLoop();
}

bool TrayDisplayTest::IsDisplayVisibleInTray() const {
  return tray_->HasSystemBubble() &&
      tray_display_->default_view() &&
      tray_display_->default_view()->visible();
}

base::string16 TrayDisplayTest::GetTrayDisplayText() const {
  return tray_display_->GetDefaultViewMessage();
}

void TrayDisplayTest::CheckAccessibleName() const {
  ui::AXViewState state;
  if (tray_display_->GetAccessibleStateForTesting(&state)) {
    base::string16 expected = tray_display_->GetDefaultViewMessage();
    EXPECT_EQ(expected, state.name);
  }
}

base::string16 TrayDisplayTest::GetTrayDisplayTooltipText() const {
  if (!tray_display_->default_view())
    return base::string16();

  base::string16 tooltip;
  if (!tray_display_->default_view()->GetTooltipText(gfx::Point(), &tooltip))
    return base::string16();
  return tooltip;
}

base::string16 TrayDisplayTest::GetDisplayNotificationText() const {
  const message_center::Notification* notification = GetDisplayNotification();
  return notification ? notification->title() : base::string16();
}

base::string16 TrayDisplayTest::GetDisplayNotificationAdditionalText() const {
  const message_center::Notification* notification = GetDisplayNotification();
  return notification ? notification->message() : base::string16();
}

const message_center::Notification* TrayDisplayTest::GetDisplayNotification()
    const {
  const message_center::NotificationList::Notifications notifications =
      message_center::MessageCenter::Get()->GetVisibleNotifications();
  for (message_center::NotificationList::Notifications::const_iterator iter =
           notifications.begin(); iter != notifications.end(); ++iter) {
    if ((*iter)->id() == TrayDisplay::kNotificationId)
      return *iter;
  }

  return NULL;
}

TEST_F(TrayDisplayTest, NoInternalDisplay) {
  UpdateDisplay("400x400");
  tray()->ShowDefaultView(BUBBLE_USE_EXISTING);
  EXPECT_FALSE(IsDisplayVisibleInTray());

  UpdateDisplay("400x400,200x200");
  tray()->ShowDefaultView(BUBBLE_USE_EXISTING);
  EXPECT_TRUE(IsDisplayVisibleInTray());
  base::string16 expected = l10n_util::GetStringUTF16(
      IDS_ASH_STATUS_TRAY_DISPLAY_EXTENDED_NO_INTERNAL);
  base::string16 first_name = GetFirstDisplayName();
  EXPECT_EQ(expected, GetTrayDisplayText());
  EXPECT_EQ(GetTooltipText(expected, GetFirstDisplayName(), "400x400",
                           GetSecondDisplayName(), "200x200"),
            GetTrayDisplayTooltipText());
  CheckAccessibleName();

  // mirroring
  Shell::GetInstance()->display_manager()->SetSoftwareMirroring(true);
  UpdateDisplay("400x400,200x200");
  tray()->ShowDefaultView(BUBBLE_USE_EXISTING);
  EXPECT_TRUE(IsDisplayVisibleInTray());
  expected = l10n_util::GetStringUTF16(
      IDS_ASH_STATUS_TRAY_DISPLAY_MIRRORING_NO_INTERNAL);
  EXPECT_EQ(expected, GetTrayDisplayText());
  EXPECT_EQ(GetMirroredTooltipText(expected, GetFirstDisplayName(), "400x400"),
            GetTrayDisplayTooltipText());
  CheckAccessibleName();
}

TEST_F(TrayDisplayTest, InternalDisplay) {
  UpdateDisplay("400x400");
  DisplayManager* display_manager = Shell::GetInstance()->display_manager();
  gfx::Display::SetInternalDisplayId(display_manager->first_display_id());

  tray()->ShowDefaultView(BUBBLE_USE_EXISTING);
  EXPECT_FALSE(IsDisplayVisibleInTray());

  // Extended
  UpdateDisplay("400x400,200x200");
  base::string16 expected = l10n_util::GetStringFUTF16(
      IDS_ASH_STATUS_TRAY_DISPLAY_EXTENDED, GetSecondDisplayName());
  tray()->ShowDefaultView(BUBBLE_USE_EXISTING);
  EXPECT_TRUE(IsDisplayVisibleInTray());
  EXPECT_EQ(expected, GetTrayDisplayText());
  EXPECT_EQ(GetTooltipText(expected, GetFirstDisplayName(), "400x400",
                           GetSecondDisplayName(), "200x200"),
            GetTrayDisplayTooltipText());
  CheckAccessibleName();

  // Mirroring
  display_manager->SetSoftwareMirroring(true);
  UpdateDisplay("400x400,200x200");
  tray()->ShowDefaultView(BUBBLE_USE_EXISTING);
  EXPECT_TRUE(IsDisplayVisibleInTray());

  expected = l10n_util::GetStringFUTF16(
      IDS_ASH_STATUS_TRAY_DISPLAY_MIRRORING, GetMirroredDisplayName());
  EXPECT_EQ(expected, GetTrayDisplayText());
  EXPECT_EQ(GetMirroredTooltipText(expected, GetFirstDisplayName(), "400x400"),
            GetTrayDisplayTooltipText());
  CheckAccessibleName();
}

TEST_F(TrayDisplayTest, InternalDisplayResized) {
  UpdateDisplay("400x400@1.5");
  DisplayManager* display_manager = Shell::GetInstance()->display_manager();
  gfx::Display::SetInternalDisplayId(display_manager->first_display_id());

  // Shows the tray_display even though there's a single-display.
  tray()->ShowDefaultView(BUBBLE_USE_EXISTING);
  EXPECT_TRUE(IsDisplayVisibleInTray());
  base::string16 internal_info = l10n_util::GetStringFUTF16(
      IDS_ASH_STATUS_TRAY_DISPLAY_SINGLE_DISPLAY,
      GetFirstDisplayName(), base::UTF8ToUTF16("600x600"));
  EXPECT_EQ(internal_info, GetTrayDisplayText());
  EXPECT_EQ(GetTooltipText(base::string16(), GetFirstDisplayName(), "600x600",
                           base::string16(), std::string()),
            GetTrayDisplayTooltipText());
  CheckAccessibleName();

  // Extended
  UpdateDisplay("400x400@1.5,200x200");
  tray()->ShowDefaultView(BUBBLE_USE_EXISTING);
  EXPECT_TRUE(IsDisplayVisibleInTray());
  base::string16 expected = l10n_util::GetStringFUTF16(
      IDS_ASH_STATUS_TRAY_DISPLAY_EXTENDED, GetSecondDisplayName());
  EXPECT_EQ(expected, GetTrayDisplayText());
  EXPECT_EQ(GetTooltipText(expected, GetFirstDisplayName(), "600x600",
                           GetSecondDisplayName(), "200x200"),
            GetTrayDisplayTooltipText());
  CheckAccessibleName();

  // Mirroring
  display_manager->SetSoftwareMirroring(true);
  UpdateDisplay("400x400@1.5,200x200");
  tray()->ShowDefaultView(BUBBLE_USE_EXISTING);
  EXPECT_TRUE(IsDisplayVisibleInTray());
  expected = l10n_util::GetStringFUTF16(
      IDS_ASH_STATUS_TRAY_DISPLAY_MIRRORING, GetMirroredDisplayName());
  EXPECT_EQ(expected, GetTrayDisplayText());
  EXPECT_EQ(GetMirroredTooltipText(expected, GetFirstDisplayName(), "600x600"),
            GetTrayDisplayTooltipText());
  CheckAccessibleName();

  // Closed lid mode.
  display_manager->SetSoftwareMirroring(false);
  UpdateDisplay("400x400@1.5,200x200");
  gfx::Display::SetInternalDisplayId(ScreenUtil::GetSecondaryDisplay().id());
  UpdateDisplay("400x400@1.5");
  tray()->ShowDefaultView(BUBBLE_USE_EXISTING);
  EXPECT_TRUE(IsDisplayVisibleInTray());
  expected = l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_DISPLAY_DOCKED);
  EXPECT_EQ(expected, GetTrayDisplayText());
  EXPECT_EQ(
      GetTooltipText(
          expected, GetFirstDisplayName(), "600x600", base::string16(), ""),
      GetTrayDisplayTooltipText());
  CheckAccessibleName();
}

TEST_F(TrayDisplayTest, ExternalDisplayResized) {
  UpdateDisplay("400x400");
  DisplayManager* display_manager = Shell::GetInstance()->display_manager();
  gfx::Display::SetInternalDisplayId(display_manager->first_display_id());

  // Shows the tray_display even though there's a single-display.
  tray()->ShowDefaultView(BUBBLE_USE_EXISTING);
  EXPECT_FALSE(IsDisplayVisibleInTray());

  // Extended
  UpdateDisplay("400x400,200x200@1.5");
  const gfx::Display& secondary_display = ScreenUtil::GetSecondaryDisplay();

  tray()->ShowDefaultView(BUBBLE_USE_EXISTING);
  EXPECT_TRUE(IsDisplayVisibleInTray());
  base::string16 expected = l10n_util::GetStringFUTF16(
      IDS_ASH_STATUS_TRAY_DISPLAY_EXTENDED,
      l10n_util::GetStringFUTF16(
          IDS_ASH_STATUS_TRAY_DISPLAY_ANNOTATED_NAME,
          GetSecondDisplayName(),
          base::UTF8ToUTF16(secondary_display.size().ToString())));
  EXPECT_EQ(expected, GetTrayDisplayText());
  EXPECT_EQ(GetTooltipText(expected, GetFirstDisplayName(), "400x400",
                           GetSecondDisplayName(), "300x300"),
            GetTrayDisplayTooltipText());
  CheckAccessibleName();

  // Mirroring
  display_manager->SetSoftwareMirroring(true);
  UpdateDisplay("400x400,200x200@1.5");
  tray()->ShowDefaultView(BUBBLE_USE_EXISTING);
  EXPECT_TRUE(IsDisplayVisibleInTray());
  expected = l10n_util::GetStringFUTF16(
      IDS_ASH_STATUS_TRAY_DISPLAY_MIRRORING, GetMirroredDisplayName());
  EXPECT_EQ(expected, GetTrayDisplayText());
  EXPECT_EQ(GetMirroredTooltipText(expected, GetFirstDisplayName(), "400x400"),
            GetTrayDisplayTooltipText());
  CheckAccessibleName();
}

TEST_F(TrayDisplayTest, OverscanDisplay) {
  UpdateDisplay("400x400,300x300/o");
  DisplayManager* display_manager = Shell::GetInstance()->display_manager();
  gfx::Display::SetInternalDisplayId(display_manager->first_display_id());

  tray()->ShowDefaultView(BUBBLE_USE_EXISTING);
  EXPECT_TRUE(IsDisplayVisibleInTray());

  // /o creates the default overscan, and if overscan is set, the annotation
  // should be the size.
  base::string16 overscan = l10n_util::GetStringUTF16(
      IDS_ASH_STATUS_TRAY_DISPLAY_ANNOTATION_OVERSCAN);
  base::string16 headline = l10n_util::GetStringFUTF16(
      IDS_ASH_STATUS_TRAY_DISPLAY_EXTENDED,
      l10n_util::GetStringFUTF16(
          IDS_ASH_STATUS_TRAY_DISPLAY_ANNOTATED_NAME,
          GetSecondDisplayName(), base::UTF8ToUTF16("286x286")));
  std::string second_data = l10n_util::GetStringFUTF8(
      IDS_ASH_STATUS_TRAY_DISPLAY_ANNOTATION,
      base::UTF8ToUTF16("286x286"), overscan);
  EXPECT_EQ(GetTooltipText(headline, GetFirstDisplayName(), "400x400",
                           GetSecondDisplayName(), second_data),
            GetTrayDisplayTooltipText());

  // reset the overscan.
  display_manager->SetOverscanInsets(
      ScreenUtil::GetSecondaryDisplay().id(), gfx::Insets());
  headline = l10n_util::GetStringFUTF16(
      IDS_ASH_STATUS_TRAY_DISPLAY_EXTENDED,
      l10n_util::GetStringFUTF16(
          IDS_ASH_STATUS_TRAY_DISPLAY_ANNOTATED_NAME,
          GetSecondDisplayName(), overscan));
  second_data = l10n_util::GetStringFUTF8(
      IDS_ASH_STATUS_TRAY_DISPLAY_ANNOTATION,
      base::UTF8ToUTF16("300x300"), overscan);
  EXPECT_EQ(GetTooltipText(headline, GetFirstDisplayName(), "400x400",
                           GetSecondDisplayName(), second_data),
            GetTrayDisplayTooltipText());
}

TEST_F(TrayDisplayTest, UpdateDuringDisplayConfigurationChange) {
  tray()->ShowDefaultView(BUBBLE_USE_EXISTING);
  EXPECT_FALSE(IsDisplayVisibleInTray());

  UpdateDisplay("400x400@1.5");
  EXPECT_TRUE(tray()->HasSystemBubble());
  EXPECT_TRUE(IsDisplayVisibleInTray());
  base::string16 internal_info = l10n_util::GetStringFUTF16(
      IDS_ASH_STATUS_TRAY_DISPLAY_SINGLE_DISPLAY,
      GetFirstDisplayName(), base::UTF8ToUTF16("600x600"));
  EXPECT_EQ(internal_info, GetTrayDisplayText());
  EXPECT_EQ(GetTooltipText(base::string16(), GetFirstDisplayName(), "600x600",
                           base::string16(), std::string()),
            GetTrayDisplayTooltipText());
  CheckAccessibleName();

  UpdateDisplay("400x400,200x200");
  EXPECT_TRUE(tray()->HasSystemBubble());
  EXPECT_TRUE(IsDisplayVisibleInTray());
  base::string16 expected = l10n_util::GetStringUTF16(
      IDS_ASH_STATUS_TRAY_DISPLAY_EXTENDED_NO_INTERNAL);
  base::string16 first_name = GetFirstDisplayName();
  EXPECT_EQ(expected, GetTrayDisplayText());
  EXPECT_EQ(GetTooltipText(expected, GetFirstDisplayName(), "400x400",
                           GetSecondDisplayName(), "200x200"),
            GetTrayDisplayTooltipText());
  CheckAccessibleName();

  UpdateDisplay("400x400@1.5");
  tray()->ShowDefaultView(BUBBLE_USE_EXISTING);

  // Back to the default state, the display tray item should disappear.
  UpdateDisplay("400x400");
  EXPECT_TRUE(tray()->HasSystemBubble());
  EXPECT_FALSE(IsDisplayVisibleInTray());
}

TEST_F(TrayDisplayTest, DisplayNotifications) {
  test::TestSystemTrayDelegate* tray_delegate =
      static_cast<test::TestSystemTrayDelegate*>(
          Shell::GetInstance()->system_tray_delegate());
  tray_delegate->set_should_show_display_notification(true);

  UpdateDisplay("400x400");
  DisplayManager* display_manager = Shell::GetInstance()->display_manager();
  gfx::Display::SetInternalDisplayId(display_manager->first_display_id());
  EXPECT_TRUE(GetDisplayNotificationText().empty());

  // rotation.
  UpdateDisplay("400x400/r");
  EXPECT_EQ(
      l10n_util::GetStringFUTF16(
          IDS_ASH_STATUS_TRAY_DISPLAY_ROTATED, GetFirstDisplayName(),
          l10n_util::GetStringUTF16(
              IDS_ASH_STATUS_TRAY_DISPLAY_ORIENTATION_90)),
      GetDisplayNotificationText());
  EXPECT_TRUE(GetDisplayNotificationAdditionalText().empty());

  CloseNotification();
  UpdateDisplay("400x400");
  EXPECT_EQ(
      l10n_util::GetStringFUTF16(
          IDS_ASH_STATUS_TRAY_DISPLAY_ROTATED, GetFirstDisplayName(),
          l10n_util::GetStringUTF16(
              IDS_ASH_STATUS_TRAY_DISPLAY_STANDARD_ORIENTATION)),
      GetDisplayNotificationText());
  EXPECT_TRUE(GetDisplayNotificationAdditionalText().empty());

  // UI-scale
  CloseNotification();
  UpdateDisplay("400x400@1.5");
  EXPECT_EQ(
      l10n_util::GetStringFUTF16(
          IDS_ASH_STATUS_TRAY_DISPLAY_RESOLUTION_CHANGED,
          GetFirstDisplayName(), base::UTF8ToUTF16("600x600")),
      GetDisplayNotificationText());
  EXPECT_TRUE(GetDisplayNotificationAdditionalText().empty());

  // UI-scale to 1.0
  CloseNotification();
  UpdateDisplay("400x400");
  EXPECT_EQ(
      l10n_util::GetStringFUTF16(
          IDS_ASH_STATUS_TRAY_DISPLAY_RESOLUTION_CHANGED,
          GetFirstDisplayName(), base::UTF8ToUTF16("400x400")),
      GetDisplayNotificationText());
  EXPECT_TRUE(GetDisplayNotificationAdditionalText().empty());

  // No-update
  CloseNotification();
  UpdateDisplay("400x400");
  EXPECT_TRUE(GetDisplayNotificationText().empty());
  EXPECT_TRUE(GetDisplayNotificationAdditionalText().empty());

  // Extended.
  CloseNotification();
  UpdateDisplay("400x400,200x200");
  EXPECT_EQ(
      l10n_util::GetStringFUTF16(
          IDS_ASH_STATUS_TRAY_DISPLAY_EXTENDED, GetSecondDisplayName()),
      GetDisplayNotificationText());
  EXPECT_TRUE(GetDisplayNotificationAdditionalText().empty());

  // Mirroring.
  CloseNotification();
  display_manager->SetSoftwareMirroring(true);
  UpdateDisplay("400x400,200x200");
  EXPECT_EQ(
      l10n_util::GetStringFUTF16(
          IDS_ASH_STATUS_TRAY_DISPLAY_MIRRORING, GetMirroredDisplayName()),
      GetDisplayNotificationText());
  EXPECT_TRUE(GetDisplayNotificationAdditionalText().empty());

  // Back to extended.
  CloseNotification();
  display_manager->SetSoftwareMirroring(false);
  UpdateDisplay("400x400,200x200");
  EXPECT_EQ(
      l10n_util::GetStringFUTF16(
          IDS_ASH_STATUS_TRAY_DISPLAY_EXTENDED, GetSecondDisplayName()),
      GetDisplayNotificationText());
  EXPECT_TRUE(GetDisplayNotificationAdditionalText().empty());

  // Resize the first display.
  UpdateDisplay("400x400@1.5,200x200");
  EXPECT_EQ(
      l10n_util::GetStringFUTF16(
          IDS_ASH_STATUS_TRAY_DISPLAY_RESOLUTION_CHANGED,
          GetFirstDisplayName(), base::UTF8ToUTF16("600x600")),
      GetDisplayNotificationText());
  EXPECT_TRUE(GetDisplayNotificationAdditionalText().empty());

  // Rotate the second.
  UpdateDisplay("400x400@1.5,200x200/r");
  EXPECT_EQ(
      l10n_util::GetStringFUTF16(
          IDS_ASH_STATUS_TRAY_DISPLAY_ROTATED,
          GetSecondDisplayName(),
          l10n_util::GetStringUTF16(
              IDS_ASH_STATUS_TRAY_DISPLAY_ORIENTATION_90)),
      GetDisplayNotificationText());
  EXPECT_TRUE(GetDisplayNotificationAdditionalText().empty());

  // Enters closed lid mode.
  UpdateDisplay("400x400@1.5,200x200");
  gfx::Display::SetInternalDisplayId(ScreenUtil::GetSecondaryDisplay().id());
  UpdateDisplay("400x400@1.5");
  EXPECT_EQ(l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_DISPLAY_DOCKED),
            GetDisplayNotificationText());
  EXPECT_EQ(
      l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_DISPLAY_DOCKED_DESCRIPTION),
      GetDisplayNotificationAdditionalText());
}

TEST_F(TrayDisplayTest, DisplayConfigurationChangedTwice) {
  test::TestSystemTrayDelegate* tray_delegate =
      static_cast<test::TestSystemTrayDelegate*>(
          Shell::GetInstance()->system_tray_delegate());
  tray_delegate->set_should_show_display_notification(true);

  UpdateDisplay("400x400,200x200");
  EXPECT_EQ(
      l10n_util::GetStringUTF16(
          IDS_ASH_STATUS_TRAY_DISPLAY_EXTENDED_NO_INTERNAL),
      GetDisplayNotificationText());

  // OnDisplayConfigurationChanged() may be called more than once for a single
  // update display in case of primary is swapped or recovered from dock mode.
  // Should not remove the notification in such case.
  tray_display()->OnDisplayConfigurationChanged();
  EXPECT_EQ(
      l10n_util::GetStringUTF16(
          IDS_ASH_STATUS_TRAY_DISPLAY_EXTENDED_NO_INTERNAL),
      GetDisplayNotificationText());

  // Back to the single display. It SHOULD remove the notification since the
  // information is stale.
  UpdateDisplay("400x400");
  EXPECT_TRUE(GetDisplayNotificationText().empty());
}

TEST_F(TrayDisplayTest, UpdateAfterSuppressDisplayNotification) {
  UpdateDisplay("400x400,200x200");

  test::TestSystemTrayDelegate* tray_delegate =
      static_cast<test::TestSystemTrayDelegate*>(
          Shell::GetInstance()->system_tray_delegate());
  tray_delegate->set_should_show_display_notification(true);

  // rotate the second.
  UpdateDisplay("400x400,200x200/r");
  EXPECT_EQ(
      l10n_util::GetStringFUTF16(
          IDS_ASH_STATUS_TRAY_DISPLAY_ROTATED,
          GetSecondDisplayName(),
          l10n_util::GetStringUTF16(
              IDS_ASH_STATUS_TRAY_DISPLAY_ORIENTATION_90)),
      GetDisplayNotificationText());
}

}  // namespace ash