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      1 // Copyright 2014 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 SYNC_TEST_TRACKABLE_MOCK_INVALIDATION_H_
      6 #define SYNC_TEST_TRACKABLE_MOCK_INVALIDATION_H_
      7 
      8 #include "sync/test/mock_invalidation.h"
      9 
     10 namespace syncer {
     11 
     12 class MockInvalidationTracker;
     13 
     14 // A variant of MockInvalidation that supports acknowledgements.
     15 //
     16 // With the help of a MockInvalidationTracker, this can be used to test
     17 // sync's use of the Drop() and Acknowledge() methods.
     18 class TrackableMockInvalidation : public MockInvalidation {
     19  public:
     20   TrackableMockInvalidation(bool is_unknown_version,
     21                             int64 version,
     22                             const std::string& payload,
     23                             MockInvalidationTracker* tracker,
     24                             int tracking_id);
     25   virtual ~TrackableMockInvalidation();
     26 
     27   // Forwards notice of the acknowledgement of this invalidation to the
     28   // |tracker_|.
     29   virtual void Acknowledge() OVERRIDE;
     30 
     31   // Forwards notice of the drop of this invalidation to the |tracker_|.
     32   virtual void Drop() OVERRIDE;
     33 
     34   // Returns the integer used to identify this object with the |tracker_|.
     35   int GetTrackingId();
     36 
     37  private:
     38   // The MockInvalidationTracker that initialized this object, and which keeps
     39   // track of its acknowledgement status.  It is expected to outlive the
     40   // invalidations.  The data required for unit test assertions lives there.
     41   MockInvalidationTracker* tracker_;
     42 
     43   // An identifier that uniquely identifies this invalidation to its
     44   // |tracker_|.
     45   //
     46   // This is necessary in part because invalidations may be short lived; the
     47   // invalidation may be deleted by the time we want to make assertions about
     48   // its state.
     49   int tracking_id_;
     50 };
     51 
     52 }  // namespace syncer
     53 
     54 #endif  // SYNC_TEST_TRACKABLE_MOCK_INVALIDATION_H_
     55