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// 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 BASE_PREFS_TESTING_PREF_STORE_H_
#define BASE_PREFS_TESTING_PREF_STORE_H_
#include <string>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/observer_list.h"
#include "base/prefs/persistent_pref_store.h"
#include "base/prefs/pref_value_map.h"
// |TestingPrefStore| is a preference store implementation that allows tests to
// explicitly manipulate the contents of the store, triggering notifications
// where appropriate.
class TestingPrefStore : public PersistentPrefStore {
public:
TestingPrefStore();
// Overriden from PrefStore.
virtual bool GetValue(const std::string& key,
const base::Value** result) const OVERRIDE;
virtual void AddObserver(PrefStore::Observer* observer) OVERRIDE;
virtual void RemoveObserver(PrefStore::Observer* observer) OVERRIDE;
virtual bool HasObservers() const OVERRIDE;
virtual bool IsInitializationComplete() const OVERRIDE;
// PersistentPrefStore overrides:
virtual bool GetMutableValue(const std::string& key,
base::Value** result) OVERRIDE;
virtual void ReportValueChanged(const std::string& key) OVERRIDE;
virtual void SetValue(const std::string& key, base::Value* value) OVERRIDE;
virtual void SetValueSilently(const std::string& key,
base::Value* value) OVERRIDE;
virtual void RemoveValue(const std::string& key) OVERRIDE;
virtual bool ReadOnly() const OVERRIDE;
virtual PrefReadError GetReadError() const OVERRIDE;
virtual PersistentPrefStore::PrefReadError ReadPrefs() OVERRIDE;
virtual void ReadPrefsAsync(ReadErrorDelegate* error_delegate) OVERRIDE;
virtual void CommitPendingWrite() OVERRIDE {}
// Marks the store as having completed initialization.
void SetInitializationCompleted();
// Used for tests to trigger notifications explicitly.
void NotifyPrefValueChanged(const std::string& key);
void NotifyInitializationCompleted();
// Some convenience getters/setters.
void SetString(const std::string& key, const std::string& value);
void SetInteger(const std::string& key, int value);
void SetBoolean(const std::string& key, bool value);
bool GetString(const std::string& key, std::string* value) const;
bool GetInteger(const std::string& key, int* value) const;
bool GetBoolean(const std::string& key, bool* value) const;
// Getter and Setter methods for setting and getting the state of the
// |TestingPrefStore|.
virtual void set_read_only(bool read_only);
protected:
virtual ~TestingPrefStore();
private:
// Stores the preference values.
PrefValueMap prefs_;
// Flag that indicates if the PrefStore is read-only
bool read_only_;
// Whether initialization has been completed.
bool init_complete_;
ObserverList<PrefStore::Observer, true> observers_;
DISALLOW_COPY_AND_ASSIGN(TestingPrefStore);
};
#endif // BASE_PREFS_TESTING_PREF_STORE_H_
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