chromeos: Move files in //ash/common to //ash, part 2

ash/common/wm_window_unittest.cc

-// Copyright 2016 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/common/wm_window.h"
-
-#include <memory>
-
-#include "ash/common/test/ash_test.h"
-#include "ui/aura/window.h"
-#include "ui/aura/window_observer.h"
-
-namespace ash {
-
-using WmWindowTest = AshTest;
-
-namespace {
-
-// Tracks calls to OnWindowVisibilityChanged().
-class VisibilityObserver : public aura::WindowObserver {
- public:
-  // Attaches a aura::WindowObserver to |window_to_add_observer_to| and sets
-  // |last_observed_window_| and |last_observed_visible_value_| to the values
-  // of the last call to OnWindowVisibilityChanged().
-  explicit VisibilityObserver(WmWindow* window_to_add_observer_to)
-      : window_to_add_observer_to_(window_to_add_observer_to) {
-    window_to_add_observer_to_->aura_window()->AddObserver(this);
-  }
-  ~VisibilityObserver() override {
-    window_to_add_observer_to_->aura_window()->RemoveObserver(this);
-  }
-
-  // The values last supplied to OnWindowVisibilityChanged().
-  WmWindow* last_observed_window() { return last_observed_window_; }
-  bool last_observed_visible_value() const {
-    return last_observed_visible_value_;
-  }
-
-  // aura::WindowObserver:
-  void OnWindowVisibilityChanged(aura::Window* window, bool visible) override {
-    last_observed_window_ = WmWindow::Get(window);
-    last_observed_visible_value_ = visible;
-  }
-
- private:
-  WmWindow* window_to_add_observer_to_;
-  WmWindow* last_observed_window_ = nullptr;
-  bool last_observed_visible_value_ = false;
-
-  DISALLOW_COPY_AND_ASSIGN(VisibilityObserver);
-};
-
-}  // namespace
-
-// Verifies OnWindowVisibilityChanged() is called on a aura::WindowObserver
-// attached
-// to the parent when the child window's visibility changes.
-TEST_F(WmWindowTest, OnWindowVisibilityChangedCalledOnAncestor) {
-  std::unique_ptr<WindowOwner> window_owner = CreateTestWindow();
-  WmWindow* window = window_owner->window();
-  std::unique_ptr<WindowOwner> child_owner =
-      CreateChildWindow(window_owner->window());
-  WmWindow* child_window = child_owner->window();
-  VisibilityObserver observer(window);
-  child_window->Hide();
-  EXPECT_EQ(child_window, observer.last_observed_window());
-  EXPECT_FALSE(observer.last_observed_visible_value());
-}
-
-// Verifies OnWindowVisibilityChanged() is called on a aura::WindowObserver
-// attached
-// to a child when the parent window's visibility changes.
-TEST_F(WmWindowTest, OnWindowVisibilityChangedCalledOnChild) {
-  std::unique_ptr<WindowOwner> parent_window_owner = CreateTestWindow();
-  WmWindow* parent_window = parent_window_owner->window();
-  std::unique_ptr<WindowOwner> child_owner = CreateChildWindow(parent_window);
-  WmWindow* child_window = child_owner->window();
-  VisibilityObserver observer(child_window);
-  parent_window->Hide();
-  EXPECT_EQ(parent_window, observer.last_observed_window());
-  EXPECT_FALSE(observer.last_observed_visible_value());
-}
-
-}  // namespace ash