Test extension reloading behavior.

content/public/test/test_notification_tracker.h

 // Copyright (c) 2012 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.
 
 #ifndef CONTENT_PUBLIC_TEST_TEST_NOTIFICATION_TRACKER_H_
 #define CONTENT_PUBLIC_TEST_TEST_NOTIFICATION_TRACKER_H_
 
 #include <vector>
 
 #include "base/compiler_specific.h"
@@ skipping 27 matching lines @@
   // Makes this object listen for the given notification with the given source.
   void ListenFor(int type, const NotificationSource& source);
 
   // Makes this object listen for notifications of the given type coming from
   // any source.
   void ListenForAll(int type);
 
   // Clears the list of events.
   void Reset();
 
+  // TODO(jyasskin): Replace calls to Check*AndReset() with
+  // EXPECT_THAT(GetTypesAndReset()).
+  //
   // Given notifications type(sp, returns true if the list of notifications
   // were exactly those listed in the given arg(s), and in the same order.
   //
   // This will also reset the list so that the next call will only check for
   // new notifications. Example:
   //   <do stuff>
   //   Check1AndReset(NOTIFY_A);
   //   <do stuff>
   //   Check2AndReset(NOTIFY_B, NOTIFY_C)
   bool Check1AndReset(int type);
   bool Check2AndReset(int type1,
                       int type2);
   bool Check3AndReset(int type1,
                       int type2,
                       int type3);
 
+  // Returns the types of the received notifications in order.  Usable
+  // with EXPECT_THAT(ElementsAre):
+  //   EXPECT_THAT(tracker.GetTypesAndReset(),
+  //               testing::ElementsAre(content::NOTIFICATION_LOAD_START, ...));
+  std::vector<int> GetTypes() const;
+
+  // Like GetTypes, but also calls Reset() so that the next call will
+  // only check for new notifications.
+  std::vector<int> GetTypesAndReset() {
+    std::vector<int> result = GetTypes();
+    Reset();
+    return result;
+  }
+
   // Returns the number of notifications received since the last reset.
   size_t size() const { return events_.size(); }
 
   // Returns the information about the event at the given index. The index must
   // be in [0, size).
   const Event& at(size_t i) const { return events_[i]; }
 
  protected:
   virtual void Observe(int type,
                        const NotificationSource& source,
                        const NotificationDetails& details) OVERRIDE;
  private:
   NotificationRegistrar registrar_;
 
   // Lists all received since last cleared, in the order they were received.
   std::vector<Event> events_;
 
   DISALLOW_COPY_AND_ASSIGN(TestNotificationTracker);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_TEST_TEST_NOTIFICATION_TRACKER_H_