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Side by Side Diff: base/prefs/testing_pref_store.h

Issue 1647803004: Move base to DEPS (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 4 years, 10 months ago
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1 // Copyright (c) 2012 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_TESTING_PREF_STORE_H_
6 #define BASE_PREFS_TESTING_PREF_STORE_H_
7
8 #include <string>
9
10 #include "base/basictypes.h"
11 #include "base/compiler_specific.h"
12 #include "base/observer_list.h"
13 #include "base/prefs/persistent_pref_store.h"
14 #include "base/prefs/pref_value_map.h"
15
16 // |TestingPrefStore| is a preference store implementation that allows tests to
17 // explicitly manipulate the contents of the store, triggering notifications
18 // where appropriate.
19 class TestingPrefStore : public PersistentPrefStore {
20 public:
21 TestingPrefStore();
22
23 // Overriden from PrefStore.
24 bool GetValue(const std::string& key,
25 const base::Value** result) const override;
26 void AddObserver(PrefStore::Observer* observer) override;
27 void RemoveObserver(PrefStore::Observer* observer) override;
28 bool HasObservers() const override;
29 bool IsInitializationComplete() const override;
30
31 // PersistentPrefStore overrides:
32 bool GetMutableValue(const std::string& key, base::Value** result) override;
33 void ReportValueChanged(const std::string& key, uint32 flags) override;
34 void SetValue(const std::string& key,
35 scoped_ptr<base::Value> value,
36 uint32 flags) override;
37 void SetValueSilently(const std::string& key,
38 scoped_ptr<base::Value> value,
39 uint32 flags) override;
40 void RemoveValue(const std::string& key, uint32 flags) override;
41 bool ReadOnly() const override;
42 PrefReadError GetReadError() const override;
43 PersistentPrefStore::PrefReadError ReadPrefs() override;
44 void ReadPrefsAsync(ReadErrorDelegate* error_delegate) override;
45 void CommitPendingWrite() override;
46 void SchedulePendingLossyWrites() override;
47
48 // Marks the store as having completed initialization.
49 void SetInitializationCompleted();
50
51 // Used for tests to trigger notifications explicitly.
52 void NotifyPrefValueChanged(const std::string& key);
53 void NotifyInitializationCompleted();
54
55 // Some convenience getters/setters.
56 void SetString(const std::string& key, const std::string& value);
57 void SetInteger(const std::string& key, int value);
58 void SetBoolean(const std::string& key, bool value);
59
60 bool GetString(const std::string& key, std::string* value) const;
61 bool GetInteger(const std::string& key, int* value) const;
62 bool GetBoolean(const std::string& key, bool* value) const;
63
64 // Determines whether ReadPrefsAsync completes immediately. Defaults to false
65 // (non-blocking). To block, invoke this with true (blocking) before the call
66 // to ReadPrefsAsync. To unblock, invoke again with false (non-blocking) after
67 // the call to ReadPrefsAsync.
68 void SetBlockAsyncRead(bool block_async_read);
69
70 // Getter and Setter methods for setting and getting the state of the
71 // |TestingPrefStore|.
72 virtual void set_read_only(bool read_only);
73 void set_read_success(bool read_success);
74 void set_read_error(PersistentPrefStore::PrefReadError read_error);
75 bool committed() { return committed_; }
76
77 protected:
78 ~TestingPrefStore() override;
79
80 private:
81 // Stores the preference values.
82 PrefValueMap prefs_;
83
84 // Flag that indicates if the PrefStore is read-only
85 bool read_only_;
86
87 // The result to pass to PrefStore::Observer::OnInitializationCompleted
88 bool read_success_;
89
90 // The result to return from ReadPrefs or ReadPrefsAsync.
91 PersistentPrefStore::PrefReadError read_error_;
92
93 // Whether a call to ReadPrefsAsync should block.
94 bool block_async_read_;
95
96 // Whether there is a pending call to ReadPrefsAsync.
97 bool pending_async_read_;
98
99 // Whether initialization has been completed.
100 bool init_complete_;
101
102 // Whether the store contents have been committed to disk since the last
103 // mutation.
104 bool committed_;
105
106 scoped_ptr<ReadErrorDelegate> error_delegate_;
107 base::ObserverList<PrefStore::Observer, true> observers_;
108
109 DISALLOW_COPY_AND_ASSIGN(TestingPrefStore);
110 };
111
112 #endif // BASE_PREFS_TESTING_PREF_STORE_H_
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