1// Copyright (c) 2011 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 BASE_PREFS_MOCK_PREF_CHANGE_CALLBACK_H_
6#define BASE_PREFS_MOCK_PREF_CHANGE_CALLBACK_H_
7
8#include <string>
9
10#include "base/prefs/pref_change_registrar.h"
11#include "base/prefs/pref_service.h"
12#include "testing/gmock/include/gmock/gmock.h"
13
14using testing::Pointee;
15using testing::Property;
16using testing::Truly;
17
18// Matcher that checks whether the current value of the preference named
19// |pref_name| in |prefs| matches |value|. If |value| is NULL, the matcher
20// checks that the value is not set.
21MATCHER_P3(PrefValueMatches, prefs, pref_name, value, "") {
22  const PrefService::Preference* pref =
23      prefs->FindPreference(pref_name.c_str());
24  if (!pref)
25    return false;
26
27  const base::Value* actual_value = pref->GetValue();
28  if (!actual_value)
29    return value == NULL;
30  if (!value)
31    return actual_value == NULL;
32  return value->Equals(actual_value);
33}
34
35// A mock for testing preference notifications and easy setup of expectations.
36class MockPrefChangeCallback {
37 public:
38  explicit MockPrefChangeCallback(PrefService* prefs);
39  virtual ~MockPrefChangeCallback();
40
41  PrefChangeRegistrar::NamedChangeCallback GetCallback();
42
43  MOCK_METHOD1(OnPreferenceChanged, void(const std::string&));
44
45  void Expect(const std::string& pref_name,
46              const base::Value* value);
47
48 private:
49  PrefService* prefs_;
50};
51
52#endif  // BASE_PREFS_MOCK_PREF_CHANGE_CALLBACK_H_
53