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_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/test/event_generator.h"
  29 #include "ui/aura/window.h"
  30 #include "ui/aura/window_event_dispatcher.h"
  31 #include "ui/base/models/simple_menu_model.h"
  32 #include "ui/events/test/events_test_utils.h"
  33 #include "ui/events/test/test_event_handler.h"
  34 #include "ui/gfx/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(
  49       Shell::GetPrimaryRootWindow(),
  50       internal::kShellWindowId_DefaultContainer);
  51 }
  52
  53 aura::Window* GetAlwaysOnTopContainer() {
  54   return Shell::GetContainer(
  55       Shell::GetPrimaryRootWindow(),
  56       internal::kShellWindowId_AlwaysOnTopContainer);
  57 }
  58
  59 // Expect ALL the containers!
  60 void ExpectAllContainers() {
  61   aura::Window* root_window = Shell::GetPrimaryRootWindow();
  62   EXPECT_TRUE(Shell::GetContainer(
  63       root_window, internal::kShellWindowId_DesktopBackgroundContainer));
  64   EXPECT_TRUE(Shell::GetContainer(
  65       root_window, internal::kShellWindowId_DefaultContainer));
  66   EXPECT_TRUE(Shell::GetContainer(
  67       root_window, internal::kShellWindowId_AlwaysOnTopContainer));
  68   EXPECT_TRUE(Shell::GetContainer(
  69       root_window, internal::kShellWindowId_PanelContainer));
  70   EXPECT_TRUE(Shell::GetContainer(
  71       root_window, internal::kShellWindowId_ShelfContainer));
  72   EXPECT_TRUE(Shell::GetContainer(
  73       root_window, internal::kShellWindowId_SystemModalContainer));
  74   EXPECT_TRUE(Shell::GetContainer(
  75       root_window, internal::kShellWindowId_LockScreenBackgroundContainer));
  76   EXPECT_TRUE(Shell::GetContainer(
  77       root_window, internal::kShellWindowId_LockScreenContainer));
  78   EXPECT_TRUE(Shell::GetContainer(
  79       root_window, internal::kShellWindowId_LockSystemModalContainer));
  80   EXPECT_TRUE(Shell::GetContainer(
  81       root_window, internal::kShellWindowId_StatusContainer));
  82   EXPECT_TRUE(Shell::GetContainer(
  83       root_window, internal::kShellWindowId_MenuContainer));
  84   EXPECT_TRUE(Shell::GetContainer(
  85       root_window, internal::kShellWindowId_DragImageAndTooltipContainer));
  86   EXPECT_TRUE(Shell::GetContainer(
  87       root_window, internal::kShellWindowId_SettingBubbleContainer));
  88   EXPECT_TRUE(Shell::GetContainer(
  89       root_window, internal::kShellWindowId_OverlayContainer));
  90   EXPECT_TRUE(Shell::GetContainer(
  91       root_window, internal::kShellWindowId_VirtualKeyboardParentContainer));
  92 #if defined(OS_CHROMEOS)
  93   EXPECT_TRUE(Shell::GetContainer(
  94       root_window, internal::kShellWindowId_MouseCursorContainer));
  95 #endif
  96 }
  97
  98 class ModalWindow : public views::WidgetDelegateView {
  99  public:
 100   ModalWindow() {}
 101   virtual ~ModalWindow() {}
 102
 103   // Overridden from views::WidgetDelegate:
 104   virtual views::View* GetContentsView() OVERRIDE {
 105     return this;
 106   }
 107   virtual bool CanResize() const OVERRIDE {
 108     return true;
 109   }
 110   virtual base::string16 GetWindowTitle() const OVERRIDE {
 111     return base::ASCIIToUTF16("Modal Window");
 112   }
 113   virtual ui::ModalType GetModalType() const OVERRIDE {
 114     return ui::MODAL_TYPE_SYSTEM;
 115   }
 116
 117  private:
 118   DISALLOW_COPY_AND_ASSIGN(ModalWindow);
 119 };
 120
 121 class SimpleMenuDelegate : public ui::SimpleMenuModel::Delegate {
 122  public:
 123   SimpleMenuDelegate() {}
 124   virtual ~SimpleMenuDelegate() {}
 125
 126   virtual bool IsCommandIdChecked(int command_id) const OVERRIDE {
 127     return false;
 128   }
 129
 130   virtual bool IsCommandIdEnabled(int command_id) const OVERRIDE {
 131     return true;
 132   }
 133
 134   virtual bool GetAcceleratorForCommandId(
 135       int command_id,
 136       ui::Accelerator* accelerator) OVERRIDE {
 137     return false;
 138   }
 139
 140   virtual void ExecuteCommand(int command_id, int event_flags) OVERRIDE {
 141   }
 142
 143  private:
 144   DISALLOW_COPY_AND_ASSIGN(SimpleMenuDelegate);
 145 };
 146
 147 }  // namespace
 148
 149 class ShellTest : public test::AshTestBase {
 150  public:
 151   views::Widget* CreateTestWindow(views::Widget::InitParams params) {
 152     views::Widget* widget = new views::Widget;
 153     params.context = CurrentContext();
 154     widget->Init(params);
 155     return widget;
 156   }
 157
 158   void TestCreateWindow(views::Widget::InitParams::Type type,
 159                         bool always_on_top,
 160                         aura::Window* expected_container) {
 161     views::Widget::InitParams widget_params(type);
 162     widget_params.keep_on_top = always_on_top;
 163
 164     views::Widget* widget = CreateTestWindow(widget_params);
 165     widget->Show();
 166
 167     EXPECT_TRUE(
 168         expected_container->Contains(widget->GetNativeWindow()->parent())) <<
 169         "TestCreateWindow: type=" << type << ", always_on_top=" <<
 170         always_on_top;
 171
 172     widget->Close();
 173   }
 174
 175   void LockScreenAndVerifyMenuClosed() {
 176     // Verify a menu is open before locking.
 177     views::MenuController* menu_controller =
 178         views::MenuController::GetActiveInstance();
 179     DCHECK(menu_controller);
 180     EXPECT_EQ(views::MenuController::EXIT_NONE, menu_controller->exit_type());
 181
 182     // Create a LockScreen window.
 183     views::Widget::InitParams widget_params(
 184         views::Widget::InitParams::TYPE_WINDOW);
 185     SessionStateDelegate* delegate =
 186         Shell::GetInstance()->session_state_delegate();
 187     delegate->LockScreen();
 188     views::Widget* lock_widget = CreateTestWindow(widget_params);
 189     ash::Shell::GetContainer(
 190         Shell::GetPrimaryRootWindow(),
 191         ash::internal::kShellWindowId_LockScreenContainer)->
 192         AddChild(lock_widget->GetNativeView());
 193     lock_widget->Show();
 194     EXPECT_TRUE(delegate->IsScreenLocked());
 195     EXPECT_TRUE(lock_widget->GetNativeView()->HasFocus());
 196
 197     // Verify menu is closed.
 198     EXPECT_NE(views::MenuController::EXIT_NONE, menu_controller->exit_type());
 199     lock_widget->Close();
 200     delegate->UnlockScreen();
 201
 202     // In case the menu wasn't closed, cancel the menu to exit the nested menu
 203     // run loop so that the test will not time out.
 204     menu_controller->CancelAll();
 205   }
 206 };
 207
 208 TEST_F(ShellTest, CreateWindow) {
 209   // Normal window should be created in default container.
 210   TestCreateWindow(views::Widget::InitParams::TYPE_WINDOW,
 211                    false,  // always_on_top
 212                    GetDefaultContainer());
 213   TestCreateWindow(views::Widget::InitParams::TYPE_POPUP,
 214                    false,  // always_on_top
 215                    GetDefaultContainer());
 216
 217   // Always-on-top window and popup are created in always-on-top container.
 218   TestCreateWindow(views::Widget::InitParams::TYPE_WINDOW,
 219                    true,  // always_on_top
 220                    GetAlwaysOnTopContainer());
 221   TestCreateWindow(views::Widget::InitParams::TYPE_POPUP,
 222                    true,  // always_on_top
 223                    GetAlwaysOnTopContainer());
 224 }
 225
 226 TEST_F(ShellTest, ChangeAlwaysOnTop) {
 227   views::Widget::InitParams widget_params(
 228       views::Widget::InitParams::TYPE_WINDOW);
 229
 230   // Creates a normal window
 231   views::Widget* widget = CreateTestWindow(widget_params);
 232   widget->Show();
 233
 234   // It should be in default container.
 235   EXPECT_TRUE(GetDefaultContainer()->Contains(
 236                   widget->GetNativeWindow()->parent()));
 237
 238   // Flip always-on-top flag.
 239   widget->SetAlwaysOnTop(true);
 240   // And it should in always on top container now.
 241   EXPECT_EQ(GetAlwaysOnTopContainer(), widget->GetNativeWindow()->parent());
 242
 243   // Flip always-on-top flag.
 244   widget->SetAlwaysOnTop(false);
 245   // It should go back to default container.
 246   EXPECT_TRUE(GetDefaultContainer()->Contains(
 247                   widget->GetNativeWindow()->parent()));
 248
 249   // Set the same always-on-top flag again.
 250   widget->SetAlwaysOnTop(false);
 251   // Should have no effect and we are still in the default container.
 252   EXPECT_TRUE(GetDefaultContainer()->Contains(
 253                   widget->GetNativeWindow()->parent()));
 254
 255   widget->Close();
 256 }
 257
 258 TEST_F(ShellTest, CreateModalWindow) {
 259   views::Widget::InitParams widget_params(
 260       views::Widget::InitParams::TYPE_WINDOW);
 261
 262   // Create a normal window.
 263   views::Widget* widget = CreateTestWindow(widget_params);
 264   widget->Show();
 265
 266   // It should be in default container.
 267   EXPECT_TRUE(GetDefaultContainer()->Contains(
 268                   widget->GetNativeWindow()->parent()));
 269
 270   // Create a modal window.
 271   views::Widget* modal_widget = views::Widget::CreateWindowWithParent(
 272       new ModalWindow(), widget->GetNativeView());
 273   modal_widget->Show();
 274
 275   // It should be in modal container.
 276   aura::Window* modal_container = Shell::GetContainer(
 277       Shell::GetPrimaryRootWindow(),
 278       internal::kShellWindowId_SystemModalContainer);
 279   EXPECT_EQ(modal_container, modal_widget->GetNativeWindow()->parent());
 280
 281   modal_widget->Close();
 282   widget->Close();
 283 }
 284
 285 class TestModalDialogDelegate : public views::DialogDelegateView {
 286  public:
 287   TestModalDialogDelegate() {}
 288
 289   // Overridden from views::WidgetDelegate:
 290   virtual ui::ModalType GetModalType() const OVERRIDE {
 291     return ui::MODAL_TYPE_SYSTEM;
 292   }
 293 };
 294
 295 TEST_F(ShellTest, CreateLockScreenModalWindow) {
 296   views::Widget::InitParams widget_params(
 297       views::Widget::InitParams::TYPE_WINDOW);
 298
 299   // Create a normal window.
 300   views::Widget* widget = CreateTestWindow(widget_params);
 301   widget->Show();
 302   EXPECT_TRUE(widget->GetNativeView()->HasFocus());
 303
 304   // It should be in default container.
 305   EXPECT_TRUE(GetDefaultContainer()->Contains(
 306                   widget->GetNativeWindow()->parent()));
 307
 308   Shell::GetInstance()->session_state_delegate()->LockScreen();
 309   // Create a LockScreen window.
 310   views::Widget* lock_widget = CreateTestWindow(widget_params);
 311   ash::Shell::GetContainer(
 312       Shell::GetPrimaryRootWindow(),
 313       ash::internal::kShellWindowId_LockScreenContainer)->
 314       AddChild(lock_widget->GetNativeView());
 315   lock_widget->Show();
 316   EXPECT_TRUE(lock_widget->GetNativeView()->HasFocus());
 317
 318   // It should be in LockScreen container.
 319   aura::Window* lock_screen = Shell::GetContainer(
 320       Shell::GetPrimaryRootWindow(),
 321       ash::internal::kShellWindowId_LockScreenContainer);
 322   EXPECT_EQ(lock_screen, lock_widget->GetNativeWindow()->parent());
 323
 324   // Create a modal window with a lock window as parent.
 325   views::Widget* lock_modal_widget = views::Widget::CreateWindowWithParent(
 326       new ModalWindow(), lock_widget->GetNativeView());
 327   lock_modal_widget->Show();
 328   EXPECT_TRUE(lock_modal_widget->GetNativeView()->HasFocus());
 329
 330   // It should be in LockScreen modal container.
 331   aura::Window* lock_modal_container = Shell::GetContainer(
 332       Shell::GetPrimaryRootWindow(),
 333       ash::internal::kShellWindowId_LockSystemModalContainer);
 334   EXPECT_EQ(lock_modal_container,
 335             lock_modal_widget->GetNativeWindow()->parent());
 336
 337   // Create a modal window with a normal window as parent.
 338   views::Widget* modal_widget = views::Widget::CreateWindowWithParent(
 339       new ModalWindow(), widget->GetNativeView());
 340   modal_widget->Show();
 341   // Window on lock screen shouldn't lost focus.
 342   EXPECT_FALSE(modal_widget->GetNativeView()->HasFocus());
 343   EXPECT_TRUE(lock_modal_widget->GetNativeView()->HasFocus());
 344
 345   // It should be in non-LockScreen modal container.
 346   aura::Window* modal_container = Shell::GetContainer(
 347       Shell::GetPrimaryRootWindow(),
 348       ash::internal::kShellWindowId_SystemModalContainer);
 349   EXPECT_EQ(modal_container, modal_widget->GetNativeWindow()->parent());
 350
 351   // Modal dialog without parent, caused crash see crbug.com/226141
 352   views::Widget* modal_dialog = views::DialogDelegate::CreateDialogWidget(
 353       new TestModalDialogDelegate(), CurrentContext(), NULL);
 354
 355   modal_dialog->Show();
 356   EXPECT_FALSE(modal_dialog->GetNativeView()->HasFocus());
 357   EXPECT_TRUE(lock_modal_widget->GetNativeView()->HasFocus());
 358
 359   modal_dialog->Close();
 360   modal_widget->Close();
 361   modal_widget->Close();
 362   lock_modal_widget->Close();
 363   lock_widget->Close();
 364   widget->Close();
 365 }
 366
 367 TEST_F(ShellTest, IsScreenLocked) {
 368   SessionStateDelegate* delegate =
 369       Shell::GetInstance()->session_state_delegate();
 370   delegate->LockScreen();
 371   EXPECT_TRUE(delegate->IsScreenLocked());
 372   delegate->UnlockScreen();
 373   EXPECT_FALSE(delegate->IsScreenLocked());
 374 }
 375
 376 TEST_F(ShellTest, LockScreenClosesActiveMenu) {
 377   SimpleMenuDelegate menu_delegate;
 378   scoped_ptr<ui::SimpleMenuModel> menu_model(
 379       new ui::SimpleMenuModel(&menu_delegate));
 380   menu_model->AddItem(0, base::ASCIIToUTF16("Menu item"));
 381   views::Widget* widget = ash::Shell::GetPrimaryRootWindowController()->
 382       wallpaper_controller()->widget();
 383   scoped_ptr<views::MenuRunner> menu_runner(
 384       new views::MenuRunner(menu_model.get()));
 385
 386   // When MenuRunner runs a nested loop the LockScreenAndVerifyMenuClosed
 387   // command will fire, check the menu state and ensure the nested menu loop
 388   // is exited so that the test will terminate.
 389   base::MessageLoopForUI::current()->PostTask(FROM_HERE,
 390       base::Bind(&ShellTest::LockScreenAndVerifyMenuClosed,
 391                  base::Unretained(this)));
 392
 393   EXPECT_EQ(views::MenuRunner::NORMAL_EXIT,
 394       menu_runner->RunMenuAt(widget, NULL, gfx::Rect(),
 395         views::MenuItemView::TOPLEFT, ui::MENU_SOURCE_MOUSE,
 396         views::MenuRunner::CONTEXT_MENU));
 397 }
 398
 399 TEST_F(ShellTest, ManagedWindowModeBasics) {
 400   // We start with the usual window containers.
 401   ExpectAllContainers();
 402   // Shelf is visible.
 403   ShelfWidget* shelf_widget = Shelf::ForPrimaryDisplay()->shelf_widget();
 404   EXPECT_TRUE(shelf_widget->IsVisible());
 405   // Shelf is at bottom-left of screen.
 406   EXPECT_EQ(0, shelf_widget->GetWindowBoundsInScreen().x());
 407   EXPECT_EQ(Shell::GetPrimaryRootWindow()->GetHost()->GetBounds().height(),
 408             shelf_widget->GetWindowBoundsInScreen().bottom());
 409   // We have a desktop background but not a bare layer.
 410   // TODO (antrim): enable once we find out why it fails component build.
 411   //  internal::DesktopBackgroundWidgetController* background =
 412   //      Shell::GetPrimaryRootWindow()->
 413   //          GetProperty(internal::kWindowDesktopComponent);
 414   //  EXPECT_TRUE(background);
 415   //  EXPECT_TRUE(background->widget());
 416   //  EXPECT_FALSE(background->layer());
 417
 418   // Create a normal window.  It is not maximized.
 419   views::Widget::InitParams widget_params(
 420       views::Widget::InitParams::TYPE_WINDOW);
 421   widget_params.bounds.SetRect(11, 22, 300, 400);
 422   views::Widget* widget = CreateTestWindow(widget_params);
 423   widget->Show();
 424   EXPECT_FALSE(widget->IsMaximized());
 425
 426   // Clean up.
 427   widget->Close();
 428 }
 429
 430 TEST_F(ShellTest, FullscreenWindowHidesShelf) {
 431   ExpectAllContainers();
 432
 433   // Create a normal window.  It is not maximized.
 434   views::Widget::InitParams widget_params(
 435       views::Widget::InitParams::TYPE_WINDOW);
 436   widget_params.bounds.SetRect(11, 22, 300, 400);
 437   views::Widget* widget = CreateTestWindow(widget_params);
 438   widget->Show();
 439   EXPECT_FALSE(widget->IsMaximized());
 440
 441   // Shelf defaults to visible.
 442   EXPECT_EQ(
 443       SHELF_VISIBLE,
 444       Shell::GetPrimaryRootWindowController()->
 445           GetShelfLayoutManager()->visibility_state());
 446
 447   // Fullscreen window hides it.
 448   widget->SetFullscreen(true);
 449   EXPECT_EQ(
 450       SHELF_HIDDEN,
 451       Shell::GetPrimaryRootWindowController()->
 452           GetShelfLayoutManager()->visibility_state());
 453
 454   // Restoring the window restores it.
 455   widget->Restore();
 456   EXPECT_EQ(
 457       SHELF_VISIBLE,
 458       Shell::GetPrimaryRootWindowController()->
 459           GetShelfLayoutManager()->visibility_state());
 460
 461   // Clean up.
 462   widget->Close();
 463 }
 464
 465 // Various assertions around SetShelfAutoHideBehavior() and
 466 // GetShelfAutoHideBehavior().
 467 TEST_F(ShellTest, ToggleAutoHide) {
 468   scoped_ptr<aura::Window> window(new aura::Window(NULL));
 469   window->SetProperty(aura::client::kShowStateKey, ui::SHOW_STATE_NORMAL);
 470   window->SetType(ui::wm::WINDOW_TYPE_NORMAL);
 471   window->Init(aura::WINDOW_LAYER_TEXTURED);
 472   ParentWindowInPrimaryRootWindow(window.get());
 473   window->Show();
 474   wm::ActivateWindow(window.get());
 475
 476   Shell* shell = Shell::GetInstance();
 477   aura::Window* root_window = Shell::GetPrimaryRootWindow();
 478   shell->SetShelfAutoHideBehavior(ash::SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS,
 479                                   root_window);
 480   EXPECT_EQ(ash::SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS,
 481             shell->GetShelfAutoHideBehavior(root_window));
 482   shell->SetShelfAutoHideBehavior(ash::SHELF_AUTO_HIDE_BEHAVIOR_NEVER,
 483                                   root_window);
 484   EXPECT_EQ(ash::SHELF_AUTO_HIDE_BEHAVIOR_NEVER,
 485             shell->GetShelfAutoHideBehavior(root_window));
 486   window->SetProperty(aura::client::kShowStateKey, ui::SHOW_STATE_MAXIMIZED);
 487   EXPECT_EQ(ash::SHELF_AUTO_HIDE_BEHAVIOR_NEVER,
 488             shell->GetShelfAutoHideBehavior(root_window));
 489   shell->SetShelfAutoHideBehavior(ash::SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS,
 490                                   root_window);
 491   EXPECT_EQ(ash::SHELF_AUTO_HIDE_BEHAVIOR_ALWAYS,
 492             shell->GetShelfAutoHideBehavior(root_window));
 493   shell->SetShelfAutoHideBehavior(ash::SHELF_AUTO_HIDE_BEHAVIOR_NEVER,
 494                                   root_window);
 495   EXPECT_EQ(ash::SHELF_AUTO_HIDE_BEHAVIOR_NEVER,
 496             shell->GetShelfAutoHideBehavior(root_window));
 497 }
 498
 499 // Tests that the cursor-filter is ahead of the drag-drop controller in the
 500 // pre-target list.
 501 TEST_F(ShellTest, TestPreTargetHandlerOrder) {
 502   Shell* shell = Shell::GetInstance();
 503   ui::EventTargetTestApi test_api(shell);
 504   test::ShellTestApi shell_test_api(shell);
 505
 506   const ui::EventHandlerList& handlers = test_api.pre_target_handlers();
 507   ui::EventHandlerList::const_iterator cursor_filter =
 508       std::find(handlers.begin(), handlers.end(), shell->mouse_cursor_filter());
 509   ui::EventHandlerList::const_iterator drag_drop =
 510       std::find(handlers.begin(), handlers.end(),
 511                 shell_test_api.drag_drop_controller());
 512   EXPECT_NE(handlers.end(), cursor_filter);
 513   EXPECT_NE(handlers.end(), drag_drop);
 514   EXPECT_GT(drag_drop, cursor_filter);
 515 }
 516
 517 // Verifies an EventHandler added to Env gets notified from EventGenerator.
 518 TEST_F(ShellTest, EnvPreTargetHandler) {
 519   ui::test::TestEventHandler event_handler;
 520   aura::Env::GetInstance()->AddPreTargetHandler(&event_handler);
 521   aura::test::EventGenerator generator(Shell::GetPrimaryRootWindow());
 522   generator.MoveMouseBy(1, 1);
 523   EXPECT_NE(0, event_handler.num_mouse_events());
 524   aura::Env::GetInstance()->RemovePreTargetHandler(&event_handler);
 525 }
 526
 527 // This verifies WindowObservers are removed when a window is destroyed after
 528 // the Shell is destroyed. This scenario (aura::Windows being deleted after the
 529 // Shell) occurs if someone is holding a reference to an unparented Window, as
 530 // is the case with a RenderWidgetHostViewAura that isn't on screen. As long as
 531 // everything is ok, we won't crash. If there is a bug, window's destructor will
 532 // notify some deleted object (say VideoDetector or ActivationController) and
 533 // this will crash.
 534 class ShellTest2 : public test::AshTestBase {
 535  public:
 536   ShellTest2() {}
 537   virtual ~ShellTest2() {}
 538
 539  protected:
 540   scoped_ptr<aura::Window> window_;
 541
 542  private:
 543   DISALLOW_COPY_AND_ASSIGN(ShellTest2);
 544 };
 545
 546 TEST_F(ShellTest2, DontCrashWhenWindowDeleted) {
 547   window_.reset(new aura::Window(NULL));
 548   window_->Init(aura::WINDOW_LAYER_NOT_DRAWN);
 549 }
 550
 551 }  // namespace ash