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// Copyright 2014 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 SYNC_TEST_MOCK_INVALIDATION_TRACKER_H_
#define SYNC_TEST_MOCK_INVALIDATION_TRACKER_H_
#include <set>
#include "base/memory/scoped_ptr.h"
#include "sync/test/trackable_mock_invalidation.h"
namespace syncer {
// Instantiates and track the acknowledgement state of
// TrackableMockInvalidations.
class MockInvalidationTracker {
public:
// Builers to return new TrackableMockInvalidations associated with this
// object.
scoped_ptr<TrackableMockInvalidation> IssueUnknownVersionInvalidation();
scoped_ptr<TrackableMockInvalidation> IssueInvalidation(
int64 version,
const std::string& payload);
MockInvalidationTracker();
~MockInvalidationTracker();
// Records the acknowledgement of the invalidation
// specified by the given ID.
void Acknowledge(int invaliation_id);
// Records the drop of the invalidation specified by the given ID.
void Drop(int invalidation_id);
// Returns true if the invalidation associated with the given ID is neither
// acknowledged nor dropped.
bool IsUnacked(int invalidation_id) const;
// Returns true if the invalidation associated with the given ID is
// acknowledged.
bool IsAcknowledged(int invalidation_id) const;
// Returns true if the invalidation associated with the given ID is dropped.
bool IsDropped(int invalidation_id) const;
// Returns true if all issued invalidations were acknowledged or dropped.
bool AllInvalidationsAccountedFor() const;
private:
// A counter used to assign strictly increasing IDs to each invalidation
// issued by this class.
int next_id_;
// Acknowledgements and drops are tracked by adding the IDs for the
// acknowledged or dropped items to the proper set. An invalidation may be
// both dropped and acknowledged if it represents the recovery from a drop
// event.
std::set<int> dropped_;
std::set<int> acknowledged_;
};
} // namespace syncer
#endif // SYNC_TEST_MOCK_INVALIDATION_TRACKER_H_
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