chrome/browser/extensions/extension_notification_observer.h

   1 // Copyright 2013 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_EXTENSION_NOTIFICATION_OBSERVER_H_
   6 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_NOTIFICATION_OBSERVER_H_
   7
   8 #include <set>
   9 #include <string>
  10
  11 #include "base/compiler_specific.h"
  12 #include "content/public/browser/notification_details.h"
  13 #include "content/public/browser/notification_observer.h"
  14 #include "content/public/browser/notification_registrar.h"
  15 #include "content/public/browser/notification_service.h"
  16 #include "content/public/browser/notification_source.h"
  17 #include "extensions/browser/notification_types.h"
  18 #include "testing/gtest/include/gtest/gtest.h"
  19
  20 namespace extensions {
  21
  22 // Records LOADED, INSTALLED, and UNLOADED notifications for extensions with
  23 // specific IDs. Use in tests only.
  24 class ExtensionNotificationObserver : public content::NotificationObserver {
  25  public:
  26   ExtensionNotificationObserver(content::NotificationSource source,
  27                                 const std::set<std::string>& extension_ids);
  28
  29   ~ExtensionNotificationObserver() override;
  30
  31   // Each of these methods returns a testing::AssertionSuccess if exactly those
  32   // notifications occurred for any extensions in |extension_ids|, and no more,
  33   // since the last time any of these methods were called.
  34   testing::AssertionResult CheckNotifications() WARN_UNUSED_RESULT;
  35   testing::AssertionResult CheckNotifications(extensions::NotificationType type)
  36       WARN_UNUSED_RESULT;
  37   testing::AssertionResult CheckNotifications(extensions::NotificationType t1,
  38                                               extensions::NotificationType t2)
  39       WARN_UNUSED_RESULT;
  40   testing::AssertionResult CheckNotifications(extensions::NotificationType t1,
  41                                               extensions::NotificationType t2,
  42                                               extensions::NotificationType t3)
  43       WARN_UNUSED_RESULT;
  44   testing::AssertionResult CheckNotifications(extensions::NotificationType t1,
  45                                               extensions::NotificationType t2,
  46                                               extensions::NotificationType t3,
  47                                               extensions::NotificationType t4,
  48                                               extensions::NotificationType t5,
  49                                               extensions::NotificationType t6)
  50       WARN_UNUSED_RESULT;
  51
  52  private:
  53   // content::NotificationObserver implementation.
  54   void Observe(int type,
  55                const content::NotificationSource& source,
  56                const content::NotificationDetails& details) override;
  57
  58   // Checks then clears notifications for our extensions.
  59   testing::AssertionResult CheckNotifications(
  60       const std::vector<extensions::NotificationType>& types);
  61
  62   const std::set<std::string> extension_ids_;
  63   std::vector<extensions::NotificationType> notifications_;
  64   content::NotificationRegistrar registrar_;
  65 };
  66
  67 }  // namespace extensions
  68
  69 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_NOTIFICATION_OBSERVER_H_