Implement the status tray/icon API for ChromeOS.

chrome/browser/ui/views/status_icons/status_tray_chromeos_unittest.cc

+// Copyright (c) 2011 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 "base/string_util.h"
+#include "base/utf_string_conversions.h"
+#include "chrome/browser/ui/views/status_icons/status_icon_chromeos.h"
+#include "chrome/browser/ui/views/status_icons/status_tray_chromeos.h"
+#include "grit/theme_resources.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/base/models/simple_menu_model.h"
+#include "ui/base/resource/resource_bundle.h"
+
+class SkBitmap;
+
+class MockStatusIconObserver : public StatusIcon::Observer {
+ public:
+  MOCK_METHOD0(OnClicked, void());
+};
+
+TEST(StatusTrayChromeOSTest, CreateTray) {
+  // Just tests creation/destruction.
+  StatusTrayChromeOS tray;
+}
+
+TEST(StatusTrayChromeOSTest, CreateIconAndMenu) {
+  // Create an icon, set the images, tooltip, and context menu, then shut it
+  // down.
+  StatusTrayChromeOS tray;
+  StatusIcon* icon = tray.CreateStatusIcon();
+  SkBitmap* bitmap = ResourceBundle::GetSharedInstance().GetBitmapNamed(
+      IDR_STATUS_TRAY_ICON);
+  icon->SetImage(*bitmap);
+  icon->SetPressedImage(*bitmap);
+  icon->SetToolTip(ASCIIToUTF16("tool tip"));
+  ui::SimpleMenuModel* menu = new ui::SimpleMenuModel(NULL);
+  menu->AddItem(0, ASCIIToUTF16("foo"));
+  icon->SetContextMenu(menu);
+}

[Andrew T Wilson (Slow), 2011/11/14 23:46:03]

Is there any way for us to test that the appropriate button gets added to all
browser windows? I think all of the work to actually create browser window icons
is skipped in these tests since BrowserList is empty.

[Leandro Graciá Gil, 2011/11/15 22:23:31]

Good point. I guess we need to make this a browser test instead of a unit test. 

+
+TEST(StatusTrayChromeOSTest, ClickOnIcon) {
+  // Create an icon, send a fake click event, make sure observer is called.
+  StatusTrayChromeOS tray;
+  StatusIconChromeOS* icon =
+      static_cast<StatusIconChromeOS*>(tray.CreateStatusIcon());
+  MockStatusIconObserver observer;
+  icon->AddObserver(&observer);
+  EXPECT_CALL(observer, OnClicked());
+  // Mimic a click.
+  icon->Clicked();
+  icon->RemoveObserver(&observer);
+}
+