Revert "chromeos: Move files in //ash/common to //ash, part 3"

ash/wallpaper/wallpaper_controller_unittest.cc

Index: ash/wallpaper/wallpaper_controller_unittest.cc
diff --git a/ash/wallpaper/wallpaper_controller_unittest.cc b/ash/wallpaper/wallpaper_controller_unittest.cc
deleted file mode 100644
index 6ac8d1c6f798545892d87334cd17c5fd2b38f65c..0000000000000000000000000000000000000000
--- a/ash/wallpaper/wallpaper_controller_unittest.cc
+++ /dev/null
@@ -1,473 +0,0 @@
-// Copyright (c) 2012 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/wallpaper/wallpaper_controller.h"
-
-#include <cmath>
-#include <cstdlib>
-
-#include "ash/public/cpp/shell_window_ids.h"
-#include "ash/root_window_controller.h"
-#include "ash/test/ash_test_base.h"
-#include "ash/test/test_wallpaper_delegate.h"
-#include "ash/wallpaper/wallpaper_view.h"
-#include "ash/wallpaper/wallpaper_widget_controller.h"
-#include "ash/wm_shell.h"
-#include "ash/wm_window.h"
-#include "base/message_loop/message_loop.h"
-#include "base/run_loop.h"
-#include "base/strings/stringprintf.h"
-#include "base/threading/sequenced_worker_pool.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "third_party/skia/include/core/SkColor.h"
-#include "ui/compositor/scoped_animation_duration_scale_mode.h"
-#include "ui/compositor/test/layer_animator_test_controller.h"
-#include "ui/gfx/canvas.h"
-#include "ui/views/widget/widget.h"
-
-using wallpaper::WALLPAPER_LAYOUT_CENTER;
-using wallpaper::WALLPAPER_LAYOUT_CENTER_CROPPED;
-using wallpaper::WALLPAPER_LAYOUT_STRETCH;
-using wallpaper::WALLPAPER_LAYOUT_TILE;
-
-namespace ash {
-namespace {
-
-// Containers IDs used for tests.
-const int kWallpaperId = ash::kShellWindowId_WallpaperContainer;
-const int kLockScreenWallpaperId =
-    ash::kShellWindowId_LockScreenWallpaperContainer;
-
-// Returns number of child windows in a shell window container.
-int ChildCountForContainer(int container_id) {
-  WmWindow* root = WmShell::Get()->GetPrimaryRootWindow();
-  WmWindow* container = root->GetChildByShellWindowId(container_id);
-  return static_cast<int>(container->GetChildren().size());
-}
-
-// Steps a widget's layer animation until it is completed. Animations must be
-// enabled.
-void RunAnimationForWidget(views::Widget* widget) {
-  // Animations must be enabled for stepping to work.
-  ASSERT_NE(ui::ScopedAnimationDurationScaleMode::duration_scale_mode(),
-            ui::ScopedAnimationDurationScaleMode::ZERO_DURATION);
-
-  ui::Layer* layer = widget->GetLayer();
-  ui::LayerAnimatorTestController controller(layer->GetAnimator());
-  // Multiple steps are required to complete complex animations.
-  // TODO(vollick): This should not be necessary. crbug.com/154017
-  while (controller.animator()->is_animating()) {
-    controller.StartThreadedAnimationsIfNeeded();
-    base::TimeTicks step_time = controller.animator()->last_step_time();
-    layer->GetAnimator()->Step(step_time +
-                               base::TimeDelta::FromMilliseconds(1000));
-  }
-}
-
-// Monitors if any task is processed by the message loop.
-class TaskObserver : public base::MessageLoop::TaskObserver {
- public:
-  TaskObserver() : processed_(false) {}
-  ~TaskObserver() override {}
-
-  // MessageLoop::TaskObserver overrides.
-  void WillProcessTask(const base::PendingTask& pending_task) override {}
-  void DidProcessTask(const base::PendingTask& pending_task) override {
-    processed_ = true;
-  }
-
-  // Returns true if any task was processed.
-  bool processed() const { return processed_; }
-
- private:
-  bool processed_;
-  DISALLOW_COPY_AND_ASSIGN(TaskObserver);
-};
-
-void RunAllBlockingPoolTasksUntilIdle(base::SequencedWorkerPool* pool) {
-  while (true) {
-    pool->FlushForTesting();
-
-    TaskObserver task_observer;
-    base::MessageLoop::current()->AddTaskObserver(&task_observer);
-    base::RunLoop().RunUntilIdle();
-    base::MessageLoop::current()->RemoveTaskObserver(&task_observer);
-
-    if (!task_observer.processed())
-      break;
-  }
-}
-
-}  // namespace
-
-class WallpaperControllerTest : public test::AshTestBase {
- public:
-  WallpaperControllerTest()
-      : controller_(nullptr), wallpaper_delegate_(nullptr) {}
-  ~WallpaperControllerTest() override {}
-
-  void SetUp() override {
-    test::AshTestBase::SetUp();
-    // Ash shell initialization creates wallpaper. Reset it so we can manually
-    // control wallpaper creation and animation in our tests.
-    RootWindowController* root_window_controller =
-        WmShell::Get()->GetPrimaryRootWindow()->GetRootWindowController();
-    root_window_controller->SetWallpaperWidgetController(nullptr);
-    root_window_controller->SetAnimatingWallpaperWidgetController(nullptr);
-    controller_ = WmShell::Get()->wallpaper_controller();
-    wallpaper_delegate_ = static_cast<test::TestWallpaperDelegate*>(
-        WmShell::Get()->wallpaper_delegate());
-    controller_->set_wallpaper_reload_delay_for_test(0);
-  }
-
-  WallpaperView* wallpaper_view() {
-    WallpaperWidgetController* controller =
-        WmShell::Get()
-            ->GetPrimaryRootWindow()
-            ->GetRootWindowController()
-            ->animating_wallpaper_widget_controller()
-            ->GetController(false);
-    EXPECT_TRUE(controller);
-    return static_cast<WallpaperView*>(
-        controller->widget()->GetContentsView()->child_at(0));
-  }
-
- protected:
-  // A color that can be passed to CreateImage(). Specifically chosen to not
-  // conflict with any of the default wallpaper colors.
-  static const SkColor kCustomWallpaperColor = SK_ColorMAGENTA;
-
-  // Creates an image of size |size|.
-  gfx::ImageSkia CreateImage(int width, int height, SkColor color) {
-    SkBitmap bitmap;
-    bitmap.allocN32Pixels(width, height);
-    bitmap.eraseColor(color);
-    gfx::ImageSkia image = gfx::ImageSkia::CreateFrom1xBitmap(bitmap);
-    return image;
-  }
-
-  // Helper function that tests the wallpaper is always fitted to the native
-  // display resolution when the layout is WALLPAPER_LAYOUT_CENTER.
-  void WallpaperFitToNativeResolution(WallpaperView* view,
-                                      float device_scale_factor,
-                                      int image_width,
-                                      int image_height,
-                                      SkColor color) {
-    gfx::Size size = view->bounds().size();
-    gfx::Canvas canvas(size, device_scale_factor, true);
-    view->OnPaint(&canvas);
-
-    int canvas_width = canvas.sk_canvas()->imageInfo().width();
-    int canvas_height = canvas.sk_canvas()->imageInfo().height();
-    SkBitmap bitmap;
-    bitmap.allocN32Pixels(canvas_width, canvas_height);
-    canvas.sk_canvas()->readPixels(&bitmap, 0, 0);
-
-    for (int i = 0; i < canvas_width; i++) {
-      for (int j = 0; j < canvas_height; j++) {
-        if (i >= (canvas_width - image_width) / 2 &&
-            i < (canvas_width + image_width) / 2 &&
-            j >= (canvas_height - image_height) / 2 &&
-            j < (canvas_height + image_height) / 2) {
-          EXPECT_EQ(color, bitmap.getColor(i, j));
-        } else {
-          EXPECT_EQ(SK_ColorBLACK, bitmap.getColor(i, j));
-        }
-      }
-    }
-  }
-
-  // Runs AnimatingWallpaperWidgetController's animation to completion.
-  // TODO(bshe): Don't require tests to run animations; it's slow.
-  void RunDesktopControllerAnimation() {
-    WallpaperWidgetController* controller =
-        WmShell::Get()
-            ->GetPrimaryRootWindow()
-            ->GetRootWindowController()
-            ->animating_wallpaper_widget_controller()
-            ->GetController(false);
-    EXPECT_TRUE(controller);
-    ASSERT_NO_FATAL_FAILURE(RunAnimationForWidget(controller->widget()));
-  }
-
-  WallpaperController* controller_;  // Not owned.
-
-  test::TestWallpaperDelegate* wallpaper_delegate_;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(WallpaperControllerTest);
-};
-
-TEST_F(WallpaperControllerTest, BasicReparenting) {
-  WallpaperController* controller = WmShell::Get()->wallpaper_controller();
-  controller->CreateEmptyWallpaper();
-
-  // Wallpaper view/window exists in the wallpaper container and nothing is in
-  // the lock screen wallpaper container.
-  EXPECT_EQ(1, ChildCountForContainer(kWallpaperId));
-  EXPECT_EQ(0, ChildCountForContainer(kLockScreenWallpaperId));
-
-  // Moving wallpaper to lock container should succeed the first time but
-  // subsequent calls should do nothing.
-  EXPECT_TRUE(controller->MoveToLockedContainer());
-  EXPECT_FALSE(controller->MoveToLockedContainer());
-
-  // One window is moved from desktop to lock container.
-  EXPECT_EQ(0, ChildCountForContainer(kWallpaperId));
-  EXPECT_EQ(1, ChildCountForContainer(kLockScreenWallpaperId));
-
-  // Moving wallpaper to desktop container should succeed the first time.
-  EXPECT_TRUE(controller->MoveToUnlockedContainer());
-  EXPECT_FALSE(controller->MoveToUnlockedContainer());
-
-  // One window is moved from lock to desktop container.
-  EXPECT_EQ(1, ChildCountForContainer(kWallpaperId));
-  EXPECT_EQ(0, ChildCountForContainer(kLockScreenWallpaperId));
-}
-
-TEST_F(WallpaperControllerTest, ControllerOwnership) {
-  // We cannot short-circuit animations for this test.
-  ui::ScopedAnimationDurationScaleMode test_duration_mode(
-      ui::ScopedAnimationDurationScaleMode::NON_ZERO_DURATION);
-
-  // Create the wallpaper and its view.
-  WallpaperController* controller = WmShell::Get()->wallpaper_controller();
-  controller->CreateEmptyWallpaper();
-
-  // The new wallpaper is ready to animate.
-  RootWindowController* root_window_controller =
-      WmShell::Get()->GetPrimaryRootWindow()->GetRootWindowController();
-  EXPECT_TRUE(root_window_controller->animating_wallpaper_widget_controller()
-                  ->GetController(false));
-  EXPECT_FALSE(root_window_controller->wallpaper_widget_controller());
-
-  // Force the animation to play to completion.
-  RunDesktopControllerAnimation();
-  EXPECT_FALSE(root_window_controller->animating_wallpaper_widget_controller()
-                   ->GetController(false));
-  EXPECT_TRUE(root_window_controller->wallpaper_widget_controller());
-}
-
-// Test for crbug.com/149043 "Unlock screen, no launcher appears". Ensure we
-// move all wallpaper views if there are more than one.
-TEST_F(WallpaperControllerTest, WallpaperMovementDuringUnlock) {
-  // We cannot short-circuit animations for this test.
-  ui::ScopedAnimationDurationScaleMode test_duration_mode(
-      ui::ScopedAnimationDurationScaleMode::NON_ZERO_DURATION);
-
-  // Reset wallpaper state, see ControllerOwnership above.
-  WallpaperController* controller = WmShell::Get()->wallpaper_controller();
-  controller->CreateEmptyWallpaper();
-
-  // Run wallpaper show animation to completion.
-  RunDesktopControllerAnimation();
-
-  // User locks the screen, which moves the wallpaper forward.
-  controller->MoveToLockedContainer();
-
-  // Suspend/resume cycle causes wallpaper to refresh, loading a new wallpaper
-  // that will animate in on top of the old one.
-  controller->CreateEmptyWallpaper();
-
-  // In this state we have two wallpaper views stored in different properties.
-  // Both are in the lock screen wallpaper container.
-  RootWindowController* root_window_controller =
-      WmShell::Get()->GetPrimaryRootWindow()->GetRootWindowController();
-  EXPECT_TRUE(root_window_controller->animating_wallpaper_widget_controller()
-                  ->GetController(false));
-  EXPECT_TRUE(root_window_controller->wallpaper_widget_controller());
-  EXPECT_EQ(0, ChildCountForContainer(kWallpaperId));
-  EXPECT_EQ(2, ChildCountForContainer(kLockScreenWallpaperId));
-
-  // Before the wallpaper's animation completes, user unlocks the screen, which
-  // moves the wallpaper to the back.
-  controller->MoveToUnlockedContainer();
-
-  // Ensure both wallpapers have moved.
-  EXPECT_EQ(2, ChildCountForContainer(kWallpaperId));
-  EXPECT_EQ(0, ChildCountForContainer(kLockScreenWallpaperId));
-
-  // Finish the new wallpaper animation.
-  RunDesktopControllerAnimation();
-
-  // Now there is one wallpaper, in the back.
-  EXPECT_EQ(1, ChildCountForContainer(kWallpaperId));
-  EXPECT_EQ(0, ChildCountForContainer(kLockScreenWallpaperId));
-}
-
-// Test for crbug.com/156542. Animating wallpaper should immediately finish
-// animation and replace current wallpaper before next animation starts.
-TEST_F(WallpaperControllerTest, ChangeWallpaperQuick) {
-  // We cannot short-circuit animations for this test.
-  ui::ScopedAnimationDurationScaleMode test_duration_mode(
-      ui::ScopedAnimationDurationScaleMode::NON_ZERO_DURATION);
-
-  // Reset wallpaper state, see ControllerOwnership above.
-  WallpaperController* controller = WmShell::Get()->wallpaper_controller();
-  controller->CreateEmptyWallpaper();
-
-  // Run wallpaper show animation to completion.
-  RunDesktopControllerAnimation();
-
-  // Change to a new wallpaper.
-  controller->CreateEmptyWallpaper();
-
-  RootWindowController* root_window_controller =
-      WmShell::Get()->GetPrimaryRootWindow()->GetRootWindowController();
-  WallpaperWidgetController* animating_controller =
-      root_window_controller->animating_wallpaper_widget_controller()
-          ->GetController(false);
-  EXPECT_TRUE(animating_controller);
-  EXPECT_TRUE(root_window_controller->wallpaper_widget_controller());
-
-  // Change to another wallpaper before animation finished.
-  controller->CreateEmptyWallpaper();
-
-  // The animating controller should immediately move to wallpaper controller.
-  EXPECT_EQ(animating_controller,
-            root_window_controller->wallpaper_widget_controller());
-
-  // Cache the new animating controller.
-  animating_controller =
-      root_window_controller->animating_wallpaper_widget_controller()
-          ->GetController(false);
-
-  // Run wallpaper show animation to completion.
-  ASSERT_NO_FATAL_FAILURE(RunAnimationForWidget(
-      root_window_controller->animating_wallpaper_widget_controller()
-          ->GetController(false)
-          ->widget()));
-
-  EXPECT_TRUE(root_window_controller->wallpaper_widget_controller());
-  EXPECT_FALSE(root_window_controller->animating_wallpaper_widget_controller()
-                   ->GetController(false));
-  // The wallpaper controller should be the last created animating controller.
-  EXPECT_EQ(animating_controller,
-            root_window_controller->wallpaper_widget_controller());
-}
-
-TEST_F(WallpaperControllerTest, ResizeCustomWallpaper) {
-  UpdateDisplay("320x200");
-
-  gfx::ImageSkia image = CreateImage(640, 480, kCustomWallpaperColor);
-
-  // Set the image as custom wallpaper, wait for the resize to finish, and check
-  // that the resized image is the expected size.
-  controller_->SetWallpaperImage(image, WALLPAPER_LAYOUT_STRETCH);
-  EXPECT_TRUE(image.BackedBySameObjectAs(controller_->GetWallpaper()));
-  RunAllBlockingPoolTasksUntilIdle(WmShell::Get()->blocking_pool().get());
-  gfx::ImageSkia resized_image = controller_->GetWallpaper();
-  EXPECT_FALSE(image.BackedBySameObjectAs(resized_image));
-  EXPECT_EQ(gfx::Size(320, 200).ToString(), resized_image.size().ToString());
-
-  // Load the original wallpaper again and check that we're still using the
-  // previously-resized image instead of doing another resize
-  // (http://crbug.com/321402).
-  controller_->SetWallpaperImage(image, WALLPAPER_LAYOUT_STRETCH);
-  RunAllBlockingPoolTasksUntilIdle(WmShell::Get()->blocking_pool().get());
-  EXPECT_TRUE(resized_image.BackedBySameObjectAs(controller_->GetWallpaper()));
-}
-
-TEST_F(WallpaperControllerTest, GetMaxDisplaySize) {
-  // Device scale factor shouldn't affect the native size.
-  UpdateDisplay("1000x300*2");
-  EXPECT_EQ("1000x300",
-            WallpaperController::GetMaxDisplaySizeInNative().ToString());
-
-  // TODO: mash doesn't support rotation yet, http://crbug.com/695556.
-  if (!WmShell::Get()->IsRunningInMash()) {
-    // Rotated display should return the rotated size.
-    UpdateDisplay("1000x300*2/r");
-    EXPECT_EQ("300x1000",
-              WallpaperController::GetMaxDisplaySizeInNative().ToString());
-  }
-
-  // UI Scaling shouldn't affect the native size.
-  UpdateDisplay("1000x300*2@1.5");
-  EXPECT_EQ("1000x300",
-            WallpaperController::GetMaxDisplaySizeInNative().ToString());
-
-  // First display has maximum size.
-  UpdateDisplay("400x300,100x100");
-  EXPECT_EQ("400x300",
-            WallpaperController::GetMaxDisplaySizeInNative().ToString());
-
-  // Second display has maximum size.
-  UpdateDisplay("400x300,500x600");
-  EXPECT_EQ("500x600",
-            WallpaperController::GetMaxDisplaySizeInNative().ToString());
-
-  // Maximum width and height belongs to different displays.
-  UpdateDisplay("400x300,100x500");
-  EXPECT_EQ("400x500",
-            WallpaperController::GetMaxDisplaySizeInNative().ToString());
-}
-
-// Test that the wallpaper is always fitted to the native display resolution
-// when the layout is WALLPAPER_LAYOUT_CENTER to prevent blurry images.
-TEST_F(WallpaperControllerTest, DontScaleWallpaperWithCenterLayout) {
-  // We cannot short-circuit animations for this test.
-  ui::ScopedAnimationDurationScaleMode test_duration_mode(
-      ui::ScopedAnimationDurationScaleMode::NON_ZERO_DURATION);
-
-  const gfx::Size high_resolution(3600, 2400);
-  const gfx::Size low_resolution(360, 240);
-  const float high_dsf = 2.0f;
-  const float low_dsf = 1.0f;
-
-  gfx::ImageSkia image_high_res = CreateImage(
-      high_resolution.width(), high_resolution.height(), kCustomWallpaperColor);
-  gfx::ImageSkia image_low_res = CreateImage(
-      low_resolution.width(), low_resolution.height(), kCustomWallpaperColor);
-
-  UpdateDisplay("1200x600*2");
-  {
-    SCOPED_TRACE(base::StringPrintf("1200x600*2 high resolution"));
-    controller_->SetWallpaperImage(image_high_res, WALLPAPER_LAYOUT_CENTER);
-    WallpaperFitToNativeResolution(
-        wallpaper_view(), high_dsf, high_resolution.width(),
-        high_resolution.height(), kCustomWallpaperColor);
-  }
-  {
-    SCOPED_TRACE(base::StringPrintf("1200x600*2 low resolution"));
-    controller_->SetWallpaperImage(image_low_res, WALLPAPER_LAYOUT_CENTER);
-    WallpaperFitToNativeResolution(
-        wallpaper_view(), high_dsf, low_resolution.width(),
-        low_resolution.height(), kCustomWallpaperColor);
-  }
-
-  UpdateDisplay("1200x600");
-  {
-    SCOPED_TRACE(base::StringPrintf("1200x600 high resolution"));
-    controller_->SetWallpaperImage(image_high_res, WALLPAPER_LAYOUT_CENTER);
-    WallpaperFitToNativeResolution(
-        wallpaper_view(), low_dsf, high_resolution.width(),
-        high_resolution.height(), kCustomWallpaperColor);
-  }
-  {
-    SCOPED_TRACE(base::StringPrintf("1200x600 low resolution"));
-    controller_->SetWallpaperImage(image_low_res, WALLPAPER_LAYOUT_CENTER);
-    WallpaperFitToNativeResolution(
-        wallpaper_view(), low_dsf, low_resolution.width(),
-        low_resolution.height(), kCustomWallpaperColor);
-  }
-
-  UpdateDisplay("1200x600/u@1.5");  // 1.5 ui scale
-  {
-    SCOPED_TRACE(base::StringPrintf("1200x600/u@1.5 high resolution"));
-    controller_->SetWallpaperImage(image_high_res, WALLPAPER_LAYOUT_CENTER);
-    WallpaperFitToNativeResolution(
-        wallpaper_view(), low_dsf, high_resolution.width(),
-        high_resolution.height(), kCustomWallpaperColor);
-  }
-  {
-    SCOPED_TRACE(base::StringPrintf("1200x600/u@1.5 low resolution"));
-    controller_->SetWallpaperImage(image_low_res, WALLPAPER_LAYOUT_CENTER);
-    WallpaperFitToNativeResolution(
-        wallpaper_view(), low_dsf, low_resolution.width(),
-        low_resolution.height(), kCustomWallpaperColor);
-  }
-}
-
-}  // namespace ash