It is time.

ui/views/controls/menu/menu_item_view_unittest.cc

-// Copyright 2014 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 "ui/views/controls/menu/menu_item_view.h"
-
-#include "base/strings/string16.h"
-#include "base/strings/utf_string_conversions.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "ui/views/controls/menu/submenu_view.h"
-#include "ui/views/view.h"
-
-namespace {
-
-// A simple View class that will match its height to the available width.
-class SquareView : public views::View {
- public:
-  SquareView() {}
-  virtual ~SquareView() {}
-
- private:
-  virtual gfx::Size GetPreferredSize() const override {
-    return gfx::Size(1, 1);
-  }
-  virtual int GetHeightForWidth(int width) const override {
-    return width;
-  }
-};
-
-// A MenuItemView implementation with a public destructor (so we can clean up
-// in tests).
-class TestMenuItemView : public views::MenuItemView {
- public:
-  TestMenuItemView() : views::MenuItemView(NULL) {}
-  virtual ~TestMenuItemView() {}
-};
-
-}  // namespace
-
-TEST(MenuItemViewUnitTest, TestMenuItemViewWithFlexibleWidthChild) {
-  TestMenuItemView root_menu;
-  root_menu.set_owned_by_client();
-
-  // Append a normal MenuItemView.
-  views::MenuItemView* label_view =
-      root_menu.AppendMenuItemWithLabel(1, base::ASCIIToUTF16("item 1"));
-
-  // Append a second MenuItemView that has a child SquareView.
-  views::MenuItemView* flexible_view =
-      root_menu.AppendMenuItemWithLabel(2, base::string16());
-  flexible_view->AddChildView(new SquareView());
-  // Set margins to 0 so that we know width should match height.
-  flexible_view->SetMargins(0, 0);
-
-  views::SubmenuView* submenu = root_menu.GetSubmenu();
-
-  // The first item should be the label view.
-  ASSERT_EQ(label_view, submenu->GetMenuItemAt(0));
-  gfx::Size label_size = label_view->GetPreferredSize();
-
-  // The second item should be the flexible view.
-  ASSERT_EQ(flexible_view, submenu->GetMenuItemAt(1));
-  gfx::Size flexible_size = flexible_view->GetPreferredSize();
-
-  // The flexible view's "preferred size" should be 1x1...
-  EXPECT_EQ(flexible_size, gfx::Size(1, 1));
-
-  // ...but it should use whatever space is available to make a square.
-  int flex_height = flexible_view->GetHeightForWidth(label_size.width());
-  EXPECT_EQ(label_size.width(), flex_height);
-
-  // The submenu should be tall enough to allow for both menu items at the given
-  // width.
-  EXPECT_EQ(label_size.height() + flex_height,
-            submenu->GetPreferredSize().height());
-}