ash/shell_unittest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ash/shell.h"
   6
   7 #include <algorithm>
   8 #include <vector>
   9
  10 #include "ash/ash_switches.h"
  11 #include "ash/desktop_background/desktop_background_widget_controller.h"
  12 #include "ash/display/mouse_cursor_event_filter.h"
  13 #include "ash/drag_drop/drag_drop_controller.h"
  14 #include "ash/root_window_controller.h"
  15 #include "ash/session/session_state_delegate.h"
  16 #include "ash/shelf/shelf.h"
  17 #include "ash/shelf/shelf_layout_manager.h"
  18 #include "ash/shelf/shelf_widget.h"
  19 #include "ash/shell_delegate.h"
  20 #include "ash/shell_window_ids.h"
  21 #include "ash/test/ash_test_base.h"
  22 #include "ash/test/shell_test_api.h"
  23 #include "ash/wm/root_window_layout_manager.h"
  24 #include "ash/wm/window_util.h"
  25 #include "base/strings/utf_string_conversions.h"
  26 #include "ui/aura/client/aura_constants.h"
  27 #include "ui/aura/env.h"
  28 #include "ui/aura/window.h"
  29 #include "ui/aura/window_event_dispatcher.h"
  30 #include "ui/base/models/simple_menu_model.h"
  31 #include "ui/events/test/event_generator.h"
  32 #include "ui/events/test/events_test_utils.h"
  33 #include "ui/events/test/test_event_handler.h"
  34 #include "ui/gfx/geometry/size.h"
  35 #include "ui/views/controls/menu/menu_controller.h"
  36 #include "ui/views/controls/menu/menu_runner.h"
  37 #include "ui/views/widget/widget.h"
  38 #include "ui/views/widget/widget_delegate.h"
  39 #include "ui/views/window/dialog_delegate.h"
  40
  41 using aura::RootWindow;
  42
  43 namespace ash {
  44
  45 namespace {
  46
  47 aura::Window* GetDefaultContainer() {
  48   return Shell::GetContainer(Shell::GetPrimaryRootWindow(),
  49                              kShellWindowId_DefaultContainer);
  50 }
  51
  52 aura::Window* GetAlwaysOnTopContainer() {
  53   return Shell::GetContainer(Shell::GetPrimaryRootWindow(),
  54                              kShellWindowId_AlwaysOnTopContainer);
  55 }
  56
  57 // Expect ALL the containers!
  58 void ExpectAllContainers() {
  59   aura::Window* root_window = Shell::GetPrimaryRootWindow();
  60   EXPECT_TRUE(Shell::GetContainer(root_window,
  61                                   kShellWindowId_DesktopBackgroundContainer));
  62   EXPECT_TRUE(
  63       Shell::GetContainer(root_window, kShellWindowId_DefaultContainer));
  64   EXPECT_TRUE(
  65       Shell::GetContainer(root_window, kShellWindowId_AlwaysOnTopContainer));
  66   EXPECT_TRUE(Shell::GetContainer(root_window, kShellWindowId_PanelContainer));
  67   EXPECT_TRUE(Shell::GetContainer(root_window, kShellWindowId_ShelfContainer));
  68   EXPECT_TRUE(
  69       Shell::GetContainer(root_window, kShellWindowId_SystemModalContainer));
  70   EXPECT_TRUE(Shell::GetContainer(
  71       root_window, kShellWindowId_LockScreenBackgroundContainer));
  72   EXPECT_TRUE(
  73       Shell::GetContainer(root_window, kShellWindowId_LockScreenContainer));
  74   EXPECT_TRUE(Shell::GetContainer(root_window,
  75                                   kShellWindowId_LockSystemModalContainer));
  76   EXPECT_TRUE(Shell::GetContainer(root_window, kShellWindowId_StatusContainer));
  77   EXPECT_TRUE(Shell::GetContainer(root_window, kShellWindowId_MenuContainer));
  78   EXPECT_TRUE(Shell::GetContainer(root_window,
  79                                   kShellWindowId_DragImageAndTooltipContainer));
  80   EXPECT_TRUE(
  81       Shell::GetContainer(root_window, kShellWindowId_SettingBubbleContainer));
  82   EXPECT_TRUE(
  83       Shell::GetContainer(root_window, kShellWindowId_OverlayContainer));
  84   EXPECT_TRUE(Shell::GetContainer(root_window,
  85                                   kShellWindowId_ImeWindowParentContainer));
  86 #if defined(OS_CHROMEOS)
  87   EXPECT_TRUE(
  88       Shell::GetContainer(root_window, kShellWindowId_MouseCursorContainer));
  89 #endif
  90 }
  91
  92 class ModalWindow : public views::WidgetDelegateView {
  93  public:
  94   ModalWindow() {}
  95   ~ModalWindow() override {}
  96
  97   // Overridden from views::WidgetDelegate:
  98   views::View* GetContentsView() override { return this; }
  99   bool CanResize() const override { return true; }
 100   base::string16 GetWindowTitle() const override {
 101     return base::ASCIIToUTF16("Modal Window");
 102   }
 103   ui::ModalType GetModalType() const override { return ui::MODAL_TYPE_SYSTEM; }
 104
 105  private:
 106   DISALLOW_COPY_AND_ASSIGN(ModalWindow);
 107 };
 108
 109 class SimpleMenuDelegate : public ui::SimpleMenuModel::Delegate {
 110  public:
 111   SimpleMenuDelegate() {}
 112   ~SimpleMenuDelegate() override {}
 113
 114   bool IsCommandIdChecked(int command_id) const override { return false; }
 115
 116   bool IsCommandIdEnabled(int command_id) const override { return true; }
 117
 118   bool GetAcceleratorForCommandId(int command_id,
 119                                   ui::Accelerator* accelerator) override {
 120     return false;
 121   }
 122
 123   void ExecuteCommand(int command_id, int event_flags) override {}
 124
 125  private:
 126   DISALLOW_COPY_AND_ASSIGN(SimpleMenuDelegate);
 127 };
 128
 129 }  // namespace
 130
 131 class ShellTest : public test::AshTestBase {
 132  public:
 133   views::Widget* CreateTestWindow(views::Widget::InitParams params) {
 134     views::Widget* widget = new views::Widget;
 135     params.context = CurrentContext();
 136     widget->Init(params);
 137     return widget;
 138   }
 139
 140   void TestCreateWindow(views::Widget::InitParams::Type type,
 141                         bool always_on_top,
 142                         aura::Window* expected_container) {
 143     views::Widget::InitParams widget_params(type);
 144     widget_params.keep_on_top = always_on_top;
 145
 146     views::Widget* widget = CreateTestWindow(widget_params);
 147     widget->Show();
 148
 149     EXPECT_TRUE(
 150         expected_container->Contains(widget->GetNativeWindow()->parent())) <<
 151         "TestCreateWindow: type=" << type << ", always_on_top=" <<
 152         always_on_top;
 153
 154     widget->Close();
 155   }
 156
 157   void LockScreenAndVerifyMenuClosed() {
 158     // Verify a menu is open before locking.
 159     views::MenuController* menu_controller =
 160         views::MenuController::GetActiveInstance();
 161     DCHECK(menu_controller);
 162     EXPECT_EQ(views::MenuController::EXIT_NONE, menu_controller->exit_type());
 163
 164     // Create a LockScreen window.
 165     views::Widget::InitParams widget_params(
 166         views::Widget::InitParams::TYPE_WINDOW);
 167     SessionStateDelegate* delegate =
 168         Shell::GetInstance()->session_state_delegate();
 169     delegate->LockScreen();
 170     views::Widget* lock_widget = CreateTestWindow(widget_params);
 171     ash::Shell::GetContainer(Shell::GetPrimaryRootWindow(),
 172                              ash::kShellWindowId_LockScreenContainer)
 173         ->AddChild(lock_widget->GetNativeView());
 174     lock_widget->Show();
 175     EXPECT_TRUE(delegate->IsScreenLocked());
 176     EXPECT_TRUE(lock_widget->GetNativeView()->HasFocus());
 177
 178     // Verify menu is closed.
 179     EXPECT_NE(views::MenuController::EXIT_NONE, menu_controller->exit_type());
 180     lock_widget->Close();
 181     delegate->UnlockScreen();
 182
 183     // In case the menu wasn't closed, cancel the menu to exit the nested menu
 184     // run loop so that the test will not time out.
 185     menu_controller->CancelAll();
 186   }
 187 };
 188
 189 TEST_F(ShellTest, CreateWindow) {
 190   // Normal window should be created in default container.
 191   TestCreateWindow(views::Widget::InitParams::TYPE_WINDOW,
 192                    false,  // always_on_top
 193                    GetDefaultContainer());
 194   TestCreateWindow(views::Widget::InitParams::TYPE_POPUP,
 195                    false,  // always_on_top
 196                    GetDefaultContainer());
 197
 198   // Always-on-top window and popup are created in always-on-top container.
 199   TestCreateWindow(views::Widget::InitParams::TYPE_WINDOW,
 200                    true,  // always_on_top
 201                    GetAlwaysOnTopContainer());
 202   TestCreateWindow(views::Widget::InitParams::TYPE_POPUP,
 203                    true,  // always_on_top
 204                    GetAlwaysOnTopContainer());
 205 }
 206
 207 TEST_F(ShellTest, ChangeAlwaysOnTop) {
 208   views::Widget::InitParams widget_params(
 209       views::Widget::InitParams::TYPE_WINDOW);
 210
 211   // Creates a normal window
 212   views::Widget* widget = CreateTestWindow(widget_params);
 213   widget->Show();
 214
 215   // It should be in default container.
 216   EXPECT_TRUE(GetDefaultContainer()->Contains(
 217                   widget->GetNativeWindow()->parent()));
 218
 219   // Flip always-on-top flag.
 220   widget->SetAlwaysOnTop(true);
 221   // And it should in always on top container now.
 222   EXPECT_EQ(GetAlwaysOnTopContainer(), widget->GetNativeWindow()->parent());
 223
 224   // Flip always-on-top flag.
 225   widget->SetAlwaysOnTop(false);
 226   // It should go back to default container.
 227   EXPECT_TRUE(GetDefaultContainer()->Contains(
 228                   widget->GetNativeWindow()->parent()));
 229
 230   // Set the same always-on-top flag again.
 231   widget->SetAlwaysOnTop(false);
 232   // Should have no effect and we are still in the default container.
 233   EXPECT_TRUE(GetDefaultContainer()->Contains(
 234                   widget->GetNativeWindow()->parent()));
 235
 236   widget->Close();
 237 }
 238
 239 TEST_F(ShellTest, CreateModalWindow) {
 240   views::Widget::InitParams widget_params(
 241       views::Widget::InitParams::TYPE_WINDOW);
 242
 243   // Create a normal window.
 244   views::Widget* widget = CreateTestWindow(widget_params);
 245   widget->Show();
 246
 247   // It should be in default container.
 248   EXPECT_TRUE(GetDefaultContainer()->Contains(
 249                   widget->GetNativeWindow()->parent()));
 250
 251   // Create a modal window.
 252   views::Widget* modal_widget = views::Widget::CreateWindowWithParent(
 253       new ModalWindow(), widget->GetNativeView());
 254   modal_widget->Show();
 255
 256   // It should be in modal container.
 257   aura::Window* modal_container = Shell::GetContainer(
 258       Shell::GetPrimaryRootWindow(), kShellWindowId_SystemModalContainer);
 259   EXPECT_EQ(modal_container, modal_widget->GetNativeWindow()->parent());
 260
 261   modal_widget->Close();
 262   widget->Close();
 263 }
 264
 265 class TestModalDialogDelegate : public views::DialogDelegateView {
 266  public:
 267   TestModalDialogDelegate() {}
 268
 269   // Overridden from views::WidgetDelegate:
 270   ui::ModalType GetModalType() const override { return ui::MODAL_TYPE_SYSTEM; }
 271 };
 272
 273 TEST_F(ShellTest, CreateLockScreenModalWindow) {
 274   views::Widget::InitParams widget_params(
 275       views::Widget::InitParams::TYPE_WINDOW);
 276
 277   // Create a normal window.
 278   views::Widget* widget = CreateTestWindow(widget_params);
 279   widget->Show();
 280   EXPECT_TRUE(widget->GetNativeView()->HasFocus());
 281
 282   // It should be in default container.
 283   EXPECT_TRUE(GetDefaultContainer()->Contains(
 284                   widget->GetNativeWindow()->parent()));
 285
 286   Shell::GetInstance()->session_state_delegate()->LockScreen();
 287   // Create a LockScreen window.
 288   views::Widget* lock_widget = CreateTestWindow(widget_params);
 289   ash::Shell::GetContainer(Shell::GetPrimaryRootWindow(),
 290                            ash::kShellWindowId_LockScreenContainer)
 291       ->AddChild(lock_widget->GetNativeView());
 292   lock_widget->Show();
 293   EXPECT_TRUE(lock_widget->GetNativeView()->HasFocus());
 294
 295   // It should be in LockScreen container.
 296   aura::Window* lock_screen = Shell::GetContainer(
 297       Shell::GetPrimaryRootWindow(), ash::kShellWindowId_LockScreenContainer);
 298   EXPECT_EQ(lock_screen, lock_widget->GetNativeWindow()->parent());
 299
 300   // Create a modal window with a lock window as parent.
 301   views::Widget* lock_modal_widget = views::Widget::CreateWindowWithParent(
 302       new ModalWindow(), lock_widget->GetNativeView());
 303   lock_modal_widget->Show();
 304   EXPECT_TRUE(lock_modal_widget->GetNativeView()->HasFocus());
 305
 306   // It should be in LockScreen modal container.
 307   aura::Window* lock_modal_container =
 308       Shell::GetContainer(Shell::GetPrimaryRootWindow(),
 309                           ash::kShellWindowId_LockSystemModalContainer);
 310   EXPECT_EQ(lock_modal_container,
 311             lock_modal_widget->GetNativeWindow()->parent());
 312
 313   // Create a modal window with a normal window as parent.
 314   views::Widget* modal_widget = views::Widget::CreateWindowWithParent(
 315       new ModalWindow(), widget->GetNativeView());
 316   modal_widget->Show();
 317   // Window on lock screen shouldn't lost focus.
 318   EXPECT_FALSE(modal_widget->GetNativeView()->HasFocus());
 319   EXPECT_TRUE(lock_modal_widget->GetNativeView()->HasFocus());
 320
 321   // It should be in non-LockScreen modal container.
 322   aura::Window* modal_container = Shell::GetContainer(
 323       Shell::GetPrimaryRootWindow(), ash::kShellWindowId_SystemModalContainer);
 324   EXPECT_EQ(modal_container, modal_widget->GetNativeWindow()->parent());
 325
 326   // Modal dialog without parent, caused crash see crbug.com/226141
 327   views::Widget* modal_dialog = views::DialogDelegate::CreateDialogWidget(
 328       new TestModalDialogDelegate(), CurrentContext(), NULL);
 329
 330   modal_dialog->Show();
 331   EXPECT_FALSE(modal_dialog->GetNativeView()->HasFocus());
 332   EXPECT_TRUE(lock_modal_widget->GetNativeView()->HasFocus());
 333
 334   modal_dialog->Close();
 335   modal_widget->Close();
 336   modal_widget->Close();
 337   lock_modal_widget->Close();
 338   lock_widget->Close();
 339   widget->Close();
 340 }
 341
 342 TEST_F(ShellTest, IsScreenLocked) {
 343   SessionStateDelegate* delegate =
 344       Shell::GetInstance()->session_state_delegate();
 345   delegate->LockScreen();
 346   EXPECT_TRUE(delegate->IsScreenLocked());
 347   delegate->UnlockScreen();
 348   EXPECT_FALSE(delegate->IsScreenLocked());
 349 }
 350
 351 TEST_F(ShellTest, LockScreenClosesActiveMenu) {
 352   SimpleMenuDelegate menu_delegate;
 353   scoped_ptr<ui::SimpleMenuModel> menu_model(
 354       new ui::SimpleMenuModel(&menu_delegate));
 355   menu_model->AddItem(0, base::ASCIIToUTF16("Menu item"));
 356   views::Widget* widget = ash::Shell::GetPrimaryRootWindowController()->
 357       wallpaper_controller()->widget();
 358   scoped_ptr<views::MenuRunner> menu_runner(
 359       new views::MenuRunner(menu_model.get(), views::MenuRunner::CONTEXT_MENU));
 360
 361   // When MenuRunner runs a nested loop the LockScreenAndVerifyMenuClosed
 362   // command will fire, check the menu state and ensure the nested menu loop
 363   // is exited so that the test will terminate.
 364   base::MessageLoopForUI::current()->PostTask(FROM_HERE,
 365       base::Bind(&ShellTest::LockScreenAndVerifyMenuClosed,
 366                  base::Unretained(this)));
 367
 368   EXPECT_EQ(views::MenuRunner::NORMAL_EXIT,
 369             menu_runner->RunMenuAt(widget,
 370                                    NULL,
 371                                    gfx::Rect(),
 372                                    views::MENU_ANCHOR_TOPLEFT,
 373                                    ui::MENU_SOURCE_MOUSE));
 374 }
 375
 376 TEST_F(ShellTest, ManagedWindowModeBasics) {
 377   if (!SupportsHostWindowResize())
 378     return;
 379
 380   // We start with the usual window containers.
 381   ExpectAllContainers();
 382   // Shelf is visible.
 383   ShelfWidget* shelf_widget = Shelf::ForPrimaryDisplay()->shelf_widget();
 384   EXPECT_TRUE(shelf_widget->IsVisible());
 385   // Shelf is at bottom-left of screen.
 386   EXPECT_EQ(0, shelf_widget->GetWindowBoundsInScreen().x());
 387   EXPECT_EQ(Shell::GetPrimaryRootWindow()->GetHost()->GetBounds().height(),
 388             shelf_widget->GetWindowBoundsInScreen().bottom());
 389   // We have a desktop background but not a bare layer.
 390   // TODO (antrim): enable once we find out why it fails component build.
 391   //  DesktopBackgroundWidgetController* background =
 392   //      Shell::GetPrimaryRootWindow()->
 393   //          GetProperty(kWindowDesktopComponent);
 394   //  EXPECT_TRUE(background);
 395   //  EXPECT_TRUE(background->widget());
 396   //  EXPECT_FALSE(background->layer());
 397
 398   // Create a normal window.  It is not maximized.
 399   views::Widget::InitParams widget_params(
 400       views::Widget::InitParams::TYPE_WINDOW);
 401   widget_params.bounds.SetRect(11, 22, 300, 400);
 402   views::Widget* widget = CreateTestWindow(widget_params);
 403   widget->Show();
 404   EXPECT_FALSE(widget->IsMaximized());
 405
 406   // Clean up.
 407   widget->Close();
 408 }
 409
 410 TEST_F(ShellTest, FullscreenWindowHidesShelf) {
 411   ExpectAllContainers();
 412
 413   // Create a normal window.  It is not maximized.
 414   views::Widget::InitParams widget_params(
 415       views::Widget::InitParams::TYPE_WINDOW);
 416   widget_params.bounds.SetRect(11, 22, 300, 400);
 417   views::Widget* widget = CreateTestWindow(widget_params);
 418   widget->Show();
 419   EXPECT_FALSE(widget->IsMaximized());
 420
 421   // Shelf defaults to visible.
 422   EXPECT_EQ(
 423       SHELF_VISIBLE,
 424       Shell::GetPrimaryRootWindowController()->
 425           GetShelfLayoutManager()->visibility_state());
 426
 427   // Fullscreen window hides it.
 428   widget->SetFullscreen(true);
 429   EXPECT_EQ(
 430       SHELF_HIDDEN,
 431       Shell::GetPrimaryRootWindowController()->
 432           GetShelfLayoutManager()->visibility_state());
 433
 434   // Restoring the window restores it.
 435   widget->Restore();
 436   EXPECT_EQ(
 437       SHELF_VISIBLE,
 438       Shell::GetPrimaryRootWindowController()->
 439           GetShelfLayoutManager()->visibility_state());
 440
 441   // Clean up.
 442   widget->Close();
 443 }
 444
 445 // Various assertions around SetShelfAutoHideBehavior() and
 446 // GetShelfAutoHideBehavior().
 447 TEST_F(ShellTest, ToggleAutoHide) {
 448   scoped_ptr<aura::Window> window(new aura::Window(NULL));
 449   window->SetProperty(aura::client::kShowStateKey, ui::SHOW_STATE_NORMAL);
 450   window->SetType(ui::wm::WINDOW_TYPE_NORMAL);
 451   window->Init(ui::LAYER_TEXTURED);
 452   ParentWindowInPrimaryRootWindow(window.get());
 453   window->Show();
 454   wm::ActivateWindow(window.get());
 455
 456   Shell* shell = Shell::GetInstance();
 457   aura::Window* root_window = Shell::GetPrimaryRootWindow();
 458   shell->SetShelfAutoHideBehavior(ash::SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS,
 459                                   root_window);
 460   EXPECT_EQ(ash::SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS,
 461             shell->GetShelfAutoHideBehavior(root_window));
 462   shell->SetShelfAutoHideBehavior(ash::SHELF_AUTO_HIDE_BEHAVIOR_NEVER,
 463                                   root_window);
 464   EXPECT_EQ(ash::SHELF_AUTO_HIDE_BEHAVIOR_NEVER,
 465             shell->GetShelfAutoHideBehavior(root_window));
 466   window->SetProperty(aura::client::kShowStateKey, ui::SHOW_STATE_MAXIMIZED);
 467   EXPECT_EQ(ash::SHELF_AUTO_HIDE_BEHAVIOR_NEVER,
 468             shell->GetShelfAutoHideBehavior(root_window));
 469   shell->SetShelfAutoHideBehavior(ash::SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS,
 470                                   root_window);
 471   EXPECT_EQ(ash::SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS,
 472             shell->GetShelfAutoHideBehavior(root_window));
 473   shell->SetShelfAutoHideBehavior(ash::SHELF_AUTO_HIDE_BEHAVIOR_NEVER,
 474                                   root_window);
 475   EXPECT_EQ(ash::SHELF_AUTO_HIDE_BEHAVIOR_NEVER,
 476             shell->GetShelfAutoHideBehavior(root_window));
 477 }
 478
 479 // Tests that the cursor-filter is ahead of the drag-drop controller in the
 480 // pre-target list.
 481 TEST_F(ShellTest, TestPreTargetHandlerOrder) {
 482   Shell* shell = Shell::GetInstance();
 483   ui::EventTargetTestApi test_api(shell);
 484   test::ShellTestApi shell_test_api(shell);
 485
 486   const ui::EventHandlerList& handlers = test_api.pre_target_handlers();
 487   ui::EventHandlerList::const_iterator cursor_filter =
 488       std::find(handlers.begin(), handlers.end(), shell->mouse_cursor_filter());
 489   ui::EventHandlerList::const_iterator drag_drop =
 490       std::find(handlers.begin(), handlers.end(),
 491                 shell_test_api.drag_drop_controller());
 492   EXPECT_NE(handlers.end(), cursor_filter);
 493   EXPECT_NE(handlers.end(), drag_drop);
 494   EXPECT_GT(drag_drop, cursor_filter);
 495 }
 496
 497 // Verifies an EventHandler added to Env gets notified from EventGenerator.
 498 TEST_F(ShellTest, EnvPreTargetHandler) {
 499   ui::test::TestEventHandler event_handler;
 500   aura::Env::GetInstance()->AddPreTargetHandler(&event_handler);
 501   ui::test::EventGenerator generator(Shell::GetPrimaryRootWindow());
 502   generator.MoveMouseBy(1, 1);
 503   EXPECT_NE(0, event_handler.num_mouse_events());
 504   aura::Env::GetInstance()->RemovePreTargetHandler(&event_handler);
 505 }
 506
 507 // This verifies WindowObservers are removed when a window is destroyed after
 508 // the Shell is destroyed. This scenario (aura::Windows being deleted after the
 509 // Shell) occurs if someone is holding a reference to an unparented Window, as
 510 // is the case with a RenderWidgetHostViewAura that isn't on screen. As long as
 511 // everything is ok, we won't crash. If there is a bug, window's destructor will
 512 // notify some deleted object (say VideoDetector or ActivationController) and
 513 // this will crash.
 514 class ShellTest2 : public test::AshTestBase {
 515  public:
 516   ShellTest2() {}
 517   ~ShellTest2() override {}
 518
 519  protected:
 520   scoped_ptr<aura::Window> window_;
 521
 522  private:
 523   DISALLOW_COPY_AND_ASSIGN(ShellTest2);
 524 };
 525
 526 TEST_F(ShellTest2, DontCrashWhenWindowDeleted) {
 527   window_.reset(new aura::Window(NULL));
 528   window_->Init(ui::LAYER_NOT_DRAWN);
 529 }
 530
 531 }  // namespace ash