chrome/browser/extensions/lazy_background_page_test_util.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_EXTENSIONS_LAZY_BACKGROUND_PAGE_TEST_UTIL_H_
   6 #define CHROME_BROWSER_EXTENSIONS_LAZY_BACKGROUND_PAGE_TEST_UTIL_H_
   7
   8 #include "chrome/browser/chrome_notification_types.h"
   9 #include "content/public/browser/notification_service.h"
  10 #include "content/public/test/test_utils.h"
  11
  12 // Helper class to wait for a lazy background page to load and close again.
  13 class LazyBackgroundObserver {
  14  public:
  15   LazyBackgroundObserver()
  16       : page_created_(chrome::NOTIFICATION_EXTENSION_BACKGROUND_PAGE_READY,
  17                       content::NotificationService::AllSources()),
  18         page_closed_(chrome::NOTIFICATION_EXTENSION_HOST_DESTROYED,
  19                      content::NotificationService::AllSources()) {
  20   }
  21   explicit LazyBackgroundObserver(Profile* profile)
  22       : page_created_(chrome::NOTIFICATION_EXTENSION_BACKGROUND_PAGE_READY,
  23                       content::NotificationService::AllSources()),
  24         page_closed_(chrome::NOTIFICATION_EXTENSION_HOST_DESTROYED,
  25                      content::Source<Profile>(profile)) {
  26   }
  27   void Wait() {
  28     page_created_.Wait();
  29     page_closed_.Wait();
  30   }
  31
  32   void WaitUntilLoaded() {
  33     page_created_.Wait();
  34   }
  35   void WaitUntilClosed() {
  36     page_closed_.Wait();
  37   }
  38
  39  private:
  40   content::WindowedNotificationObserver page_created_;
  41   content::WindowedNotificationObserver page_closed_;
  42 };
  43
  44 #endif  // CHROME_BROWSER_EXTENSIONS_LAZY_BACKGROUND_PAGE_TEST_UTIL_H_