chrome/browser/value_store/testing_value_store.cc

   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 #include "chrome/browser/value_store/testing_value_store.h"
   6
   7 #include "base/logging.h"
   8
   9 namespace {
  10
  11 const char kGenericErrorMessage[] = "TestingValueStore configured to error";
  12
  13 }  // namespace
  14
  15 TestingValueStore::TestingValueStore()
  16     : read_count_(0), write_count_(0), error_code_(OK) {}
  17
  18 TestingValueStore::~TestingValueStore() {}
  19
  20 size_t TestingValueStore::GetBytesInUse(const std::string& key) {
  21   // Let SettingsStorageQuotaEnforcer implement this.
  22   NOTREACHED() << "Not implemented";
  23   return 0;
  24 }
  25
  26 size_t TestingValueStore::GetBytesInUse(
  27     const std::vector<std::string>& keys) {
  28   // Let SettingsStorageQuotaEnforcer implement this.
  29   NOTREACHED() << "Not implemented";
  30   return 0;
  31 }
  32
  33 size_t TestingValueStore::GetBytesInUse() {
  34   // Let SettingsStorageQuotaEnforcer implement this.
  35   NOTREACHED() << "Not implemented";
  36   return 0;
  37 }
  38
  39 ValueStore::ReadResult TestingValueStore::Get(const std::string& key) {
  40   return Get(std::vector<std::string>(1, key));
  41 }
  42
  43 ValueStore::ReadResult TestingValueStore::Get(
  44     const std::vector<std::string>& keys) {
  45   read_count_++;
  46   if (error_code_ != OK)
  47     return MakeReadResult(TestingError());
  48
  49   base::DictionaryValue* settings = new base::DictionaryValue();
  50   for (std::vector<std::string>::const_iterator it = keys.begin();
  51       it != keys.end(); ++it) {
  52     base::Value* value = NULL;
  53     if (storage_.GetWithoutPathExpansion(*it, &value)) {
  54       settings->SetWithoutPathExpansion(*it, value->DeepCopy());
  55     }
  56   }
  57   return MakeReadResult(make_scoped_ptr(settings));
  58 }
  59
  60 ValueStore::ReadResult TestingValueStore::Get() {
  61   read_count_++;
  62   if (error_code_ != OK)
  63     return MakeReadResult(TestingError());
  64   return MakeReadResult(make_scoped_ptr(storage_.DeepCopy()));
  65 }
  66
  67 ValueStore::WriteResult TestingValueStore::Set(
  68     WriteOptions options, const std::string& key, const base::Value& value) {
  69   base::DictionaryValue settings;
  70   settings.SetWithoutPathExpansion(key, value.DeepCopy());
  71   return Set(options, settings);
  72 }
  73
  74 ValueStore::WriteResult TestingValueStore::Set(
  75     WriteOptions options, const base::DictionaryValue& settings) {
  76   write_count_++;
  77   if (error_code_ != OK)
  78     return MakeWriteResult(TestingError());
  79
  80   scoped_ptr<ValueStoreChangeList> changes(new ValueStoreChangeList());
  81   for (base::DictionaryValue::Iterator it(settings);
  82        !it.IsAtEnd(); it.Advance()) {
  83     base::Value* old_value = NULL;
  84     if (!storage_.GetWithoutPathExpansion(it.key(), &old_value) ||
  85         !old_value->Equals(&it.value())) {
  86       changes->push_back(
  87           ValueStoreChange(
  88               it.key(),
  89               old_value ? old_value->DeepCopy() : old_value,
  90               it.value().DeepCopy()));
  91       storage_.SetWithoutPathExpansion(it.key(), it.value().DeepCopy());
  92     }
  93   }
  94   return MakeWriteResult(changes.Pass());
  95 }
  96
  97 ValueStore::WriteResult TestingValueStore::Remove(const std::string& key) {
  98   return Remove(std::vector<std::string>(1, key));
  99 }
 100
 101 ValueStore::WriteResult TestingValueStore::Remove(
 102     const std::vector<std::string>& keys) {
 103   write_count_++;
 104   if (error_code_ != OK)
 105     return MakeWriteResult(TestingError());
 106
 107   scoped_ptr<ValueStoreChangeList> changes(new ValueStoreChangeList());
 108   for (std::vector<std::string>::const_iterator it = keys.begin();
 109       it != keys.end(); ++it) {
 110     scoped_ptr<base::Value> old_value;
 111     if (storage_.RemoveWithoutPathExpansion(*it, &old_value)) {
 112       changes->push_back(ValueStoreChange(*it, old_value.release(), NULL));
 113     }
 114   }
 115   return MakeWriteResult(changes.Pass());
 116 }
 117
 118 ValueStore::WriteResult TestingValueStore::Clear() {
 119   std::vector<std::string> keys;
 120   for (base::DictionaryValue::Iterator it(storage_);
 121        !it.IsAtEnd(); it.Advance()) {
 122     keys.push_back(it.key());
 123   }
 124   return Remove(keys);
 125 }
 126
 127 scoped_ptr<ValueStore::Error> TestingValueStore::TestingError() {
 128   return make_scoped_ptr(new ValueStore::Error(
 129       error_code_, kGenericErrorMessage, scoped_ptr<std::string>()));
 130 }