Initial implementation of status tray functionality (mac-only, currently).

chrome/browser/cocoa/status_icons/status_icon_mac_unittest.mm

+// Copyright (c) 2010 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 "app/resource_bundle.h"
+#include "base/string_util.h"
+#import "chrome/browser/cocoa/cocoa_test_helper.h"
+#include "chrome/browser/cocoa/status_icons/status_icon_mac.h"
+#include "grit/browser_resources.h"
+#include "grit/theme_resources.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+class SkBitmap;
+
+class MockStatusIconObserver : public StatusIcon::StatusIconObserver {
+ public:
+  MOCK_METHOD0(OnClicked, void());
+};
+
+class StatusIconMacTest : public CocoaTest {
+};
+
+TEST_F(StatusIconMacTest, Create) {
+  // Create an icon, set the tool tip, then shut it down (checks for leaks).
+  scoped_ptr<StatusIcon> icon(new StatusIconMac());
+  SkBitmap* bitmap = ResourceBundle::GetSharedInstance().GetBitmapNamed(
+      IDR_STATUS_TRAY_ICON);
+  icon->SetImage(*bitmap);
+  icon->SetToolTip(ASCIIToUTF16("tool tip"));
+}
+
+TEST_F(StatusIconMacTest, ObserverAdd) {
+  // Make sure that observers are invoked when we click items.
+  StatusIconMac icon;
+  MockStatusIconObserver observer, observer2;
+  EXPECT_CALL(observer, OnClicked()).Times(2);
+  EXPECT_CALL(observer2, OnClicked());
+  icon.AddObserver(&observer);
+  icon.HandleClick();
+  icon.AddObserver(&observer2);
+  icon.HandleClick();
+  icon.RemoveObserver(&observer);
+  icon.RemoveObserver(&observer2);
+}
+
+TEST_F(StatusIconMacTest, ObserverRemove) {
+  // Make sure that observers are no longer invoked after they are removed.
+  StatusIconMac icon;
+  MockStatusIconObserver observer;
+  EXPECT_CALL(observer, OnClicked());
+  icon.AddObserver(&observer);
+  icon.HandleClick();
+  icon.RemoveObserver(&observer);
+  icon.HandleClick();
+}
+