Sanitize PrefStore interface.

chrome/browser/prefs/pref_value_store_unittest.cc

 // Copyright (c) 2010 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.
 
 #include <set>
 #include <string>
 
 #include "base/scoped_ptr.h"
 #include "base/values.h"
 #include "chrome/browser/browser_thread.h"
 #include "chrome/browser/policy/configuration_policy_pref_store.h"
+#include "chrome/browser/policy/dummy_configuration_policy_provider.h"
 #include "chrome/browser/prefs/pref_notifier.h"
 #include "chrome/browser/prefs/pref_value_store.h"
 #include "chrome/browser/prefs/testing_pref_store.h"
 #include "chrome/common/pref_names.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using testing::_;
 using testing::AnyNumber;
 using testing::Mock;
 using testing::Invoke;
 
 namespace {
 
-// Records preference changes.
-class PrefChangeRecorder {
- public:
-  void Record(const std::string& pref_name) {
-    changed_prefs_.insert(pref_name);
-  }
-
-  void Clear() {
-    changed_prefs_.clear();
-  }
-
-  const std::set<std::string>& changed_prefs() { return changed_prefs_; }
-
- private:
-  std::set<std::string> changed_prefs_;
-};
-
 // Allows to capture pref notifications through gmock.
 class MockPrefNotifier : public PrefNotifier {
  public:
   MOCK_METHOD1(OnPreferenceChanged, void(const std::string&));
   MOCK_METHOD0(OnInitializationCompleted, void());
 };
 
 }  // namespace
 
 // Names of the preferences used in this test program.
@@ skipping 91 matching lines @@
     pref_value_store_->RegisterPreferenceType(prefs::kRecommendedPref,
                                               Value::TYPE_BOOLEAN);
     pref_value_store_->RegisterPreferenceType(prefs::kSampleDict,
                                               Value::TYPE_DICTIONARY);
     pref_value_store_->RegisterPreferenceType(prefs::kSampleList,
                                               Value::TYPE_LIST);
     pref_value_store_->RegisterPreferenceType(prefs::kDefaultPref,
                                               Value::TYPE_INTEGER);
     pref_value_store_->RegisterPreferenceType(prefs::kProxyAutoDetect,
                                               Value::TYPE_BOOLEAN);
-
-    ui_thread_.reset(new BrowserThread(BrowserThread::UI, &loop_));
-    file_thread_.reset(new BrowserThread(BrowserThread::FILE, &loop_));
   }
 
   // Creates a new dictionary and stores some sample user preferences
   // in it.
   void CreateUserPrefs() {
     user_pref_store_ = new TestingPrefStore;
-    user_pref_store_->prefs()->SetBoolean(prefs::kDeleteCache,
+    user_pref_store_->SetBoolean(prefs::kDeleteCache,
         user_pref::kDeleteCacheValue);
-    user_pref_store_->prefs()->SetInteger(prefs::kStabilityLaunchCount,
+    user_pref_store_->SetInteger(prefs::kStabilityLaunchCount,
         user_pref::kStabilityLaunchCountValue);
-    user_pref_store_->prefs()->SetString(prefs::kCurrentThemeID,
+    user_pref_store_->SetString(prefs::kCurrentThemeID,
         user_pref::kCurrentThemeIDValue);
-    user_pref_store_->prefs()->SetString(prefs::kApplicationLocale,
+    user_pref_store_->SetString(prefs::kApplicationLocale,
         user_pref::kApplicationLocaleValue);
-    user_pref_store_->prefs()->SetString(prefs::kDefaultSearchProviderName,
+    user_pref_store_->SetString(prefs::kDefaultSearchProviderName,
         user_pref::kSearchProviderNameValue);
-    user_pref_store_->prefs()->SetString(prefs::kHomePage,
+    user_pref_store_->SetString(prefs::kHomePage,
         user_pref::kHomepageValue);
   }
 
   void CreateManagedPlatformPrefs() {
     managed_platform_pref_store_ = new TestingPrefStore;
-    managed_platform_pref_store_->prefs()->SetString(
-        prefs::kHomePage,
+    managed_platform_pref_store_->SetString(prefs::kHomePage,
         managed_platform_pref::kHomepageValue);
-    expected_differing_paths_.insert(prefs::kHomePage);
   }
 
   void CreateDeviceManagementPrefs() {
     device_management_pref_store_ = new TestingPrefStore;
-    device_management_pref_store_->prefs()->SetString(
-        prefs::kDefaultSearchProviderName,
+    device_management_pref_store_->SetString(prefs::kDefaultSearchProviderName,
         device_management_pref::kSearchProviderNameValue);
-    expected_differing_paths_.insert("default_search_provider");
-    expected_differing_paths_.insert(prefs::kDefaultSearchProviderName);
-    device_management_pref_store_->prefs()->SetString(prefs::kHomePage,
+    device_management_pref_store_->SetString(prefs::kHomePage,
         device_management_pref::kHomepageValue);
   }
 
   void CreateExtensionPrefs() {
     extension_pref_store_ = new TestingPrefStore;
-    extension_pref_store_->prefs()->SetString(prefs::kCurrentThemeID,
+    extension_pref_store_->SetString(prefs::kCurrentThemeID,
         extension_pref::kCurrentThemeIDValue);
-    extension_pref_store_->prefs()->SetString(prefs::kHomePage,
+    extension_pref_store_->SetString(prefs::kHomePage,
         extension_pref::kHomepageValue);
-    extension_pref_store_->prefs()->SetString(prefs::kDefaultSearchProviderName,
+    extension_pref_store_->SetString(prefs::kDefaultSearchProviderName,
         extension_pref::kSearchProviderNameValue);
   }
 
   void CreateCommandLinePrefs() {
     command_line_pref_store_ = new TestingPrefStore;
-    command_line_pref_store_->prefs()->SetString(prefs::kCurrentThemeID,
+    command_line_pref_store_->SetString(prefs::kCurrentThemeID,
         command_line_pref::kCurrentThemeIDValue);
-    command_line_pref_store_->prefs()->SetString(prefs::kApplicationLocale,
+    command_line_pref_store_->SetString(prefs::kApplicationLocale,
         command_line_pref::kApplicationLocaleValue);
-    command_line_pref_store_->prefs()->SetString(prefs::kHomePage,
+    command_line_pref_store_->SetString(prefs::kHomePage,
         command_line_pref::kHomepageValue);
-    command_line_pref_store_->prefs()->SetString(
-        prefs::kDefaultSearchProviderName,
+    command_line_pref_store_->SetString(prefs::kDefaultSearchProviderName,
         command_line_pref::kSearchProviderNameValue);
   }
 
   void CreateRecommendedPrefs() {
     recommended_pref_store_ = new TestingPrefStore;
-    recommended_pref_store_->prefs()->SetInteger(prefs::kStabilityLaunchCount,
+    recommended_pref_store_->SetInteger(prefs::kStabilityLaunchCount,
         recommended_pref::kStabilityLaunchCountValue);
-    recommended_pref_store_->prefs()->SetBoolean(
-        prefs::kRecommendedPref,
+    recommended_pref_store_->SetBoolean(prefs::kRecommendedPref,
         recommended_pref::kRecommendedPrefValue);
-
-    expected_differing_paths_.insert("this");
-    expected_differing_paths_.insert("this.pref");
-    expected_differing_paths_.insert(prefs::kRecommendedPref);
-    expected_differing_paths_.insert("user_experience_metrics");
-    expected_differing_paths_.insert("user_experience_metrics.stability");
-    expected_differing_paths_.insert(prefs::kStabilityLaunchCount);
   }
 
   void CreateDefaultPrefs() {
     default_pref_store_ = new TestingPrefStore;
-    default_pref_store_->prefs()->SetInteger(prefs::kDefaultPref,
-                                             default_pref::kDefaultValue);
+    default_pref_store_->SetInteger(prefs::kDefaultPref,
+                                    default_pref::kDefaultValue);
   }
 
   DictionaryValue* CreateSampleDictValue() {
     DictionaryValue* sample_dict = new DictionaryValue();
     sample_dict->SetBoolean("issample", true);
     sample_dict->SetInteger("value", 4);
     sample_dict->SetString("descr", "Sample Test Dictionary");
     return sample_dict;
   }
 
   ListValue* CreateSampleListValue() {
     ListValue* sample_list = new ListValue();
     sample_list->Set(0, Value::CreateIntegerValue(0));
     sample_list->Set(1, Value::CreateIntegerValue(1));
     sample_list->Set(2, Value::CreateIntegerValue(2));
     sample_list->Set(3, Value::CreateIntegerValue(3));
     return sample_list;
   }
 
-  virtual void TearDown() {
-    loop_.RunAllPending();
-  }
-
-  MessageLoop loop_;
   MockPrefNotifier pref_notifier_;
   scoped_refptr<PrefValueStore> pref_value_store_;
 
   // |PrefStore|s are owned by the |PrefValueStore|.
   TestingPrefStore* managed_platform_pref_store_;
   TestingPrefStore* device_management_pref_store_;
   TestingPrefStore* extension_pref_store_;
   TestingPrefStore* command_line_pref_store_;
   TestingPrefStore* user_pref_store_;
   TestingPrefStore* recommended_pref_store_;
   TestingPrefStore* default_pref_store_;
-
-  // A vector of the preferences paths in the managed and recommended
-  // PrefStores that are set at the beginning of a test. Can be modified
-  // by the test to track changes that it makes to the preferences
-  // stored in the managed and recommended PrefStores.
-  std::set<std::string> expected_differing_paths_;
-
- private:
-  scoped_ptr<BrowserThread> ui_thread_;
-  scoped_ptr<BrowserThread> file_thread_;
 };
 
-TEST_F(PrefValueStoreTest, IsReadOnly) {
-  managed_platform_pref_store_->set_read_only(true);
-  extension_pref_store_->set_read_only(true);
-  command_line_pref_store_->set_read_only(true);
-  user_pref_store_->set_read_only(true);
-  recommended_pref_store_->set_read_only(true);
-  default_pref_store_->set_read_only(true);
-  EXPECT_TRUE(pref_value_store_->ReadOnly());
-
-  user_pref_store_->set_read_only(false);
-  EXPECT_FALSE(pref_value_store_->ReadOnly());
-}
-
 TEST_F(PrefValueStoreTest, GetValue) {
   Value* value;
 
   // Test getting a managed platform value overwriting a user-defined and
   // extension-defined value.
   value = NULL;
   ASSERT_TRUE(pref_value_store_->GetValue(prefs::kHomePage, &value));
   std::string actual_str_value;
   EXPECT_TRUE(value->GetAsString(&actual_str_value));
   EXPECT_EQ(managed_platform_pref::kHomepageValue, actual_str_value);
@@ skipping 52 matching lines @@
   // does not contain.
   FundamentalValue tmp_dummy_value(true);
   Value* v_null = &tmp_dummy_value;
   ASSERT_FALSE(pref_value_store_->GetValue(prefs::kMissingPref, &v_null));
   ASSERT_TRUE(v_null == NULL);
 }
 
 // Make sure that if a preference changes type, so the wrong type is stored in
 // the user pref file, it uses the correct fallback value instead.
 TEST_F(PrefValueStoreTest, GetValueChangedType) {
+  EXPECT_CALL(pref_notifier_, OnPreferenceChanged(_)).Times(AnyNumber());
+
   // Check falling back to a recommended value.
-  user_pref_store_->prefs()->SetString(prefs::kStabilityLaunchCount,
+  user_pref_store_->SetString(prefs::kStabilityLaunchCount,
                                        "not an integer");
   Value* value = NULL;
   ASSERT_TRUE(pref_value_store_->GetValue(prefs::kStabilityLaunchCount,
                                           &value));
   ASSERT_TRUE(value != NULL);
   ASSERT_EQ(Value::TYPE_INTEGER, value->GetType());
   int actual_int_value = -1;
   EXPECT_TRUE(value->GetAsInteger(&actual_int_value));
   EXPECT_EQ(recommended_pref::kStabilityLaunchCountValue, actual_int_value);
 
   // Check falling back multiple times, to a default string.
-  managed_platform_pref_store_->prefs()->SetInteger(prefs::kHomePage, 1);
-  device_management_pref_store_->prefs()->SetInteger(prefs::kHomePage, 1);
-  extension_pref_store_->prefs()->SetInteger(prefs::kHomePage, 1);
-  command_line_pref_store_->prefs()->SetInteger(prefs::kHomePage, 1);
-  user_pref_store_->prefs()->SetInteger(prefs::kHomePage, 1);
-  recommended_pref_store_->prefs()->SetInteger(prefs::kHomePage, 1);
-  default_pref_store_->prefs()->SetString(prefs::kHomePage,
-                                          default_pref::kHomepageValue);
+  default_pref_store_->SetString(prefs::kHomePage,
+                                 default_pref::kHomepageValue);
+  managed_platform_pref_store_->SetInteger(prefs::kHomePage, 1);
+  device_management_pref_store_->SetInteger(prefs::kHomePage, 1);
+  extension_pref_store_->SetInteger(prefs::kHomePage, 1);
+  command_line_pref_store_->SetInteger(prefs::kHomePage, 1);
+  user_pref_store_->SetInteger(prefs::kHomePage, 1);
+  recommended_pref_store_->SetInteger(prefs::kHomePage, 1);
 
   value = NULL;
   ASSERT_TRUE(pref_value_store_->GetValue(prefs::kHomePage, &value));
   ASSERT_TRUE(value != NULL);
   ASSERT_EQ(Value::TYPE_STRING, value->GetType());
   std::string actual_str_value;
   EXPECT_TRUE(value->GetAsString(&actual_str_value));
   EXPECT_EQ(default_pref::kHomepageValue, actual_str_value);
 }
 
@@ skipping 10 matching lines @@
   // Recommended preference
   EXPECT_TRUE(pref_value_store_->HasPrefPath(prefs::kRecommendedPref));
   // Default preference
   EXPECT_FALSE(pref_value_store_->HasPrefPath(prefs::kDefaultPref));
   // Unknown preference
   EXPECT_FALSE(pref_value_store_->HasPrefPath(prefs::kMissingPref));
 }
 
 TEST_F(PrefValueStoreTest, PrefChanges) {
   // Setup.
+  EXPECT_CALL(pref_notifier_, OnPreferenceChanged(_)).Times(AnyNumber());
   const char managed_platform_pref_path[] = "managed_platform_pref";
   pref_value_store_->RegisterPreferenceType(managed_platform_pref_path,
                                             Value::TYPE_STRING);
-  managed_platform_pref_store_->prefs()->SetString(managed_platform_pref_path,
+  managed_platform_pref_store_->SetString(managed_platform_pref_path,
                                                    "managed value");
   const char user_pref_path[] = "user_pref";
   pref_value_store_->RegisterPreferenceType(user_pref_path, Value::TYPE_STRING);
-  user_pref_store_->prefs()->SetString(user_pref_path, "user value");
+  user_pref_store_->SetString(user_pref_path, "user value");
   const char default_pref_path[] = "default_pref";
   pref_value_store_->RegisterPreferenceType(default_pref_path,
                                             Value::TYPE_STRING);
-  default_pref_store_->prefs()->SetString(default_pref_path, "default value");
+  default_pref_store_->SetString(default_pref_path, "default value");
+  Mock::VerifyAndClearExpectations(&pref_notifier_);
 
   // Check pref controlled by highest-priority store.
   EXPECT_CALL(pref_notifier_, OnPreferenceChanged(managed_platform_pref_path));
   managed_platform_pref_store_->NotifyPrefValueChanged(
       managed_platform_pref_path);
   Mock::VerifyAndClearExpectations(&pref_notifier_);
 
   EXPECT_CALL(pref_notifier_, OnPreferenceChanged(_)).Times(0);
   user_pref_store_->NotifyPrefValueChanged(managed_platform_pref_path);
   Mock::VerifyAndClearExpectations(&pref_notifier_);
@@ skipping 30 matching lines @@
   recommended_pref_store_->SetInitializationCompleted();
   default_pref_store_->SetInitializationCompleted();
   Mock::VerifyAndClearExpectations(&pref_notifier_);
 
   // The notification should only be triggered after the last store is done.
   EXPECT_CALL(pref_notifier_, OnInitializationCompleted()).Times(1);
   user_pref_store_->SetInitializationCompleted();
   Mock::VerifyAndClearExpectations(&pref_notifier_);
 }
 
-TEST_F(PrefValueStoreTest, ReadPrefs) {
-  pref_value_store_->ReadPrefs();
-  // The ReadPrefs method of the |TestingPrefStore| deletes the |pref_store|s
-  // internal dictionary and creates a new empty dictionary. Hence this
-  // dictionary does not contain any of the preloaded preferences.
-  // This shows that the ReadPrefs method of the |TestingPrefStore| was called.
-  EXPECT_FALSE(pref_value_store_->HasPrefPath(prefs::kDeleteCache));
-}
-
-TEST_F(PrefValueStoreTest, WritePrefs) {
-  user_pref_store_->set_prefs_written(false);
-  pref_value_store_->WritePrefs();
-  ASSERT_TRUE(user_pref_store_->get_prefs_written());
-}
-
-TEST_F(PrefValueStoreTest, SetUserPrefValue) {
-  Value* new_value = NULL;
-  Value* actual_value = NULL;
-
-  // Test that managed platform values can not be set.
-  EXPECT_CALL(pref_notifier_, OnPreferenceChanged(_)).Times(0);
-  ASSERT_TRUE(pref_value_store_->PrefValueInManagedPlatformStore(
-      prefs::kHomePage));
-  // The ownership is transfered to PrefValueStore.
-  new_value = Value::CreateStringValue("http://www.youtube.com");
-  pref_value_store_->SetUserPrefValue(prefs::kHomePage, new_value);
-  Mock::VerifyAndClearExpectations(&pref_notifier_);
-
-  ASSERT_TRUE(pref_value_store_->GetValue(prefs::kHomePage, &actual_value));
-  std::string value_str;
-  actual_value->GetAsString(&value_str);
-  ASSERT_EQ(managed_platform_pref::kHomepageValue, value_str);
-
-  // User preferences values can be set.
-  ASSERT_FALSE(pref_value_store_->PrefValueInManagedPlatformStore(
-      prefs::kStabilityLaunchCount));
-  actual_value = NULL;
-  pref_value_store_->GetValue(prefs::kStabilityLaunchCount, &actual_value);
-  int int_value;
-  EXPECT_TRUE(actual_value->GetAsInteger(&int_value));
-  EXPECT_EQ(user_pref::kStabilityLaunchCountValue, int_value);
-
-  EXPECT_CALL(pref_notifier_, OnPreferenceChanged(_)).Times(1);
-  new_value = Value::CreateIntegerValue(1);
-  pref_value_store_->SetUserPrefValue(prefs::kStabilityLaunchCount, new_value);
-  actual_value = NULL;
-  pref_value_store_->GetValue(prefs::kStabilityLaunchCount, &actual_value);
-  EXPECT_TRUE(new_value->Equals(actual_value));
-  Mock::VerifyAndClearExpectations(&pref_notifier_);
-
-  // Set and Get DictionaryValue.
-  EXPECT_CALL(pref_notifier_, OnPreferenceChanged(_)).Times(1);
-  DictionaryValue* expected_dict_value = CreateSampleDictValue();
-  pref_value_store_->SetUserPrefValue(prefs::kSampleDict, expected_dict_value);
-  Mock::VerifyAndClearExpectations(&pref_notifier_);
-
-  actual_value = NULL;
-  std::string key(prefs::kSampleDict);
-  pref_value_store_->GetValue(key, &actual_value);
-
-  ASSERT_EQ(expected_dict_value, actual_value);
-  ASSERT_TRUE(expected_dict_value->Equals(actual_value));
-
-  // Set and Get a ListValue.
-  EXPECT_CALL(pref_notifier_, OnPreferenceChanged(_)).Times(1);
-  ListValue* expected_list_value = CreateSampleListValue();
-  pref_value_store_->SetUserPrefValue(prefs::kSampleList, expected_list_value);
-  Mock::VerifyAndClearExpectations(&pref_notifier_);
-
-  actual_value = NULL;
-  key = prefs::kSampleList;
-  pref_value_store_->GetValue(key, &actual_value);
-
-  ASSERT_EQ(expected_list_value, actual_value);
-  ASSERT_TRUE(expected_list_value->Equals(actual_value));
-}
-
 TEST_F(PrefValueStoreTest, PrefValueInManagedPlatformStore) {
   // Test a managed platform preference.
   ASSERT_TRUE(pref_value_store_->HasPrefPath(prefs::kHomePage));
   EXPECT_TRUE(pref_value_store_->PrefValueInManagedPlatformStore(
       prefs::kHomePage));
 
   // Test a device management preference.
   ASSERT_TRUE(pref_value_store_->HasPrefPath(
       prefs::kDefaultSearchProviderName));
   EXPECT_TRUE(pref_value_store_->PrefValueInDeviceManagementStore(
@@ skipping 81 matching lines @@
       prefs::kDefaultPref));
 
   // Test a preference for which the PrefValueStore does not contain a value.
   ASSERT_FALSE(pref_value_store_->HasPrefPath(prefs::kMissingPref));
   EXPECT_FALSE(pref_value_store_->PrefValueInExtensionStore(
       prefs::kMissingPref));
   EXPECT_FALSE(pref_value_store_->PrefValueFromExtensionStore(
       prefs::kMissingPref));
 }
 
-TEST_F(PrefValueStoreTest, DetectProxyConfigurationConflict) {
-  // There should be no conflicting proxy prefs in the default
-  // preference stores created for the test.
-  ASSERT_FALSE(pref_value_store_->HasPolicyConflictingUserProxySettings());
-
-  // Create conflicting proxy settings in the managed and command-line
-  // preference stores.
-  command_line_pref_store_->prefs()->SetBoolean(prefs::kProxyAutoDetect, false);
-  managed_platform_pref_store_->prefs()->SetBoolean(prefs::kProxyAutoDetect,
-                                                    true);
-  ASSERT_TRUE(pref_value_store_->HasPolicyConflictingUserProxySettings());
-}
-
 TEST_F(PrefValueStoreTest, PrefValueInUserStore) {
   // Test a managed platform preference.
   ASSERT_TRUE(pref_value_store_->HasPrefPath(prefs::kHomePage));
   EXPECT_TRUE(pref_value_store_->PrefValueInUserStore(prefs::kHomePage));
   EXPECT_FALSE(pref_value_store_->PrefValueFromUserStore(prefs::kHomePage));
 
   // Test a device management preference.
   ASSERT_TRUE(pref_value_store_->HasPrefPath(
       prefs::kDefaultSearchProviderName));
   EXPECT_TRUE(pref_value_store_->PrefValueInUserStore(
@@ skipping 75 matching lines @@
   ASSERT_FALSE(pref_value_store_->HasPrefPath(prefs::kDefaultPref));
   EXPECT_TRUE(
       pref_value_store_->PrefValueFromDefaultStore(prefs::kDefaultPref));
 
   // Test a preference for which the PrefValueStore does not contain a value.
   ASSERT_FALSE(pref_value_store_->HasPrefPath(prefs::kMissingPref));
   EXPECT_FALSE(
       pref_value_store_->PrefValueFromDefaultStore(prefs::kMissingPref));
 }
 
-TEST_F(PrefValueStoreTest, TestPolicyRefresh) {
+// TODO(mnissler, danno): Clean this up when refactoring
+// ConfigurationPolicyPrefStore.
+class PrefValueStorePolicyRefreshTest : public testing::Test {
+ protected:
+  // Records preference changes.
+  class PrefChangeRecorder {
+   public:
+    void Record(const std::string& pref_name) {
+      changed_prefs_.insert(pref_name);
+    }
+
+    void Clear() {
+      changed_prefs_.clear();
+    }
+
+    const std::set<std::string>& changed_prefs() { return changed_prefs_; }
+
+   private:
+    std::set<std::string> changed_prefs_;
+  };
+
+  virtual void SetUp() {
+    using policy::ConfigurationPolicyPrefStore;
+
+    ui_thread_.reset(new BrowserThread(BrowserThread::UI, &loop_)),
+    file_thread_.reset(new BrowserThread(BrowserThread::FILE, &loop_)),
+    policy_provider_.reset(new policy::DummyConfigurationPolicyProvider(
+        policy::ConfigurationPolicyPrefStore::GetChromePolicyDefinitionList()));
+
+    ConfigurationPolicyPrefStore* managed_store =
+        NewConfigurationPolicyPrefStore();
+    managed_store->prefs()->SetString(prefs::kHomePage,
+                                      managed_platform_pref::kHomepageValue);
+    expected_differing_paths_.insert(prefs::kHomePage);
+
+    ConfigurationPolicyPrefStore* device_management_store =
+        NewConfigurationPolicyPrefStore();
+    device_management_store->prefs()->SetString(
+        prefs::kDefaultSearchProviderName,
+        device_management_pref::kSearchProviderNameValue);
+    expected_differing_paths_.insert("default_search_provider");
+    expected_differing_paths_.insert(prefs::kDefaultSearchProviderName);
+
+    ConfigurationPolicyPrefStore* recommended_store =
+        NewConfigurationPolicyPrefStore();
+    recommended_store->prefs()->SetInteger(prefs::kStabilityLaunchCount,
+        recommended_pref::kStabilityLaunchCountValue);
+    recommended_store->prefs()->SetBoolean(prefs::kRecommendedPref,
+        recommended_pref::kRecommendedPrefValue);
+
+    expected_differing_paths_.insert("this");
+    expected_differing_paths_.insert("this.pref");
+    expected_differing_paths_.insert(prefs::kRecommendedPref);
+    expected_differing_paths_.insert("user_experience_metrics");
+    expected_differing_paths_.insert("user_experience_metrics.stability");
+    expected_differing_paths_.insert(prefs::kStabilityLaunchCount);
+
+    pref_value_store_ = new PrefValueStore(
+        managed_store,
+        device_management_store,
+        NULL,
+        NULL,
+        new TestingPrefStore(),
+        recommended_store,
+        NULL,
+        &pref_notifier_,
+        NULL);
+  }
+
+  virtual void TearDown() {
+    loop_.RunAllPending();
+    pref_value_store_ = NULL;
+    file_thread_.reset();
+    ui_thread_.reset();
+  }
+
+  // Creates a new ConfigurationPolicyPrefStore for testing.
+  policy::ConfigurationPolicyPrefStore* NewConfigurationPolicyPrefStore() {
+    return new policy::ConfigurationPolicyPrefStore(policy_provider_.get());
+  }
+
+  // A vector of the preferences paths in policy PrefStores that are set at the
+  // beginning of a test. Can be modified by the test to track changes that it
+  // makes to the preferences stored in the managed and recommended PrefStores.
+  std::set<std::string> expected_differing_paths_;
+
+  MessageLoop loop_;
+  MockPrefNotifier pref_notifier_;
+  scoped_refptr<PrefValueStore> pref_value_store_;
+
+ private:
+  scoped_ptr<BrowserThread> ui_thread_;
+  scoped_ptr<BrowserThread> file_thread_;
+
+  scoped_ptr<policy::DummyConfigurationPolicyProvider> policy_provider_;
+};
+
+TEST_F(PrefValueStorePolicyRefreshTest, TestPolicyRefresh) {
   // pref_value_store_ is initialized by PrefValueStoreTest to have values in
   // the managed platform, device management and recommended stores. By
   // replacing them with dummy stores, all of the paths of the prefs originally
   // in the managed platform, device management and recommended stores should
   // change.
   pref_value_store_->RefreshPolicyPrefs();
 
   PrefChangeRecorder recorder;
   EXPECT_CALL(pref_notifier_, OnPreferenceChanged(_))
       .WillRepeatedly(Invoke(&recorder, &PrefChangeRecorder::Record));
   loop_.RunAllPending();
   EXPECT_EQ(expected_differing_paths_, recorder.changed_prefs());
 }
 
-TEST_F(PrefValueStoreTest, TestRefreshPolicyPrefsCompletion) {
+TEST_F(PrefValueStorePolicyRefreshTest, TestRefreshPolicyPrefsCompletion) {
+  using policy::ConfigurationPolicyPrefStore;
   PrefChangeRecorder recorder;
   EXPECT_CALL(pref_notifier_, OnPreferenceChanged(_))
       .WillRepeatedly(Invoke(&recorder, &PrefChangeRecorder::Record));
 
   // Test changed preferences in the managed platform store and removed
   // preferences in the recommended store. In addition to "homepage", the other
   // prefs that are set by default in the test class are removed by the
   // DummyStore.
-  scoped_ptr<TestingPrefStore> new_managed_platform_store(
-      new TestingPrefStore());
-  DictionaryValue* dict = new DictionaryValue();
-  dict->SetString("homepage", "some other changed homepage");
-  new_managed_platform_store->set_prefs(dict);
+  scoped_ptr<ConfigurationPolicyPrefStore> new_managed_platform_store(
+      NewConfigurationPolicyPrefStore());
+  new_managed_platform_store->prefs()->SetString("homepage",
+                                                 "some other changed homepage");
 
   recorder.Clear();
   pref_value_store_->RefreshPolicyPrefsCompletion(
       new_managed_platform_store.release(),
-      new TestingPrefStore(),
-      new TestingPrefStore());
+      NewConfigurationPolicyPrefStore(),
+      NewConfigurationPolicyPrefStore());
   EXPECT_EQ(expected_differing_paths_, recorder.changed_prefs());
 
   // Test properties that have been removed from the managed platform store.
   // Homepage is still set in managed prefs.
   expected_differing_paths_.clear();
   expected_differing_paths_.insert(prefs::kHomePage);
 
   recorder.Clear();
   pref_value_store_->RefreshPolicyPrefsCompletion(
-      new TestingPrefStore(),
-      new TestingPrefStore(),
-      new TestingPrefStore());
+      NewConfigurationPolicyPrefStore(),
+      NewConfigurationPolicyPrefStore(),
+      NewConfigurationPolicyPrefStore());
   EXPECT_EQ(expected_differing_paths_, recorder.changed_prefs());
 
   // Test properties that are added to the device management store.
   expected_differing_paths_.clear();
   expected_differing_paths_.insert(prefs::kHomePage);
-  scoped_ptr<TestingPrefStore> new_device_management_store(
-      new TestingPrefStore());
-  dict = new DictionaryValue();
-  dict->SetString("homepage", "some other changed homepage");
-  new_device_management_store->set_prefs(dict);
+  scoped_ptr<ConfigurationPolicyPrefStore> new_device_management_store(
+      NewConfigurationPolicyPrefStore());
+  new_device_management_store->prefs()->SetString(
+      "homepage", "some other changed homepage");
 
   recorder.Clear();
   pref_value_store_->RefreshPolicyPrefsCompletion(
-      new TestingPrefStore(),
+      NewConfigurationPolicyPrefStore(),
       new_device_management_store.release(),
-      new TestingPrefStore());
+      NewConfigurationPolicyPrefStore());
   EXPECT_EQ(expected_differing_paths_, recorder.changed_prefs());
 
   // Test properties that are added to the recommended store.
-  scoped_ptr<TestingPrefStore>  new_recommended_store(new TestingPrefStore());
-  dict = new DictionaryValue();
-  dict->SetString("homepage", "some other changed homepage 2");
-  new_recommended_store->set_prefs(dict);
+  scoped_ptr<ConfigurationPolicyPrefStore>  new_recommended_store(
+      NewConfigurationPolicyPrefStore());
+  new_recommended_store->prefs()->SetString("homepage",
+                                            "some other changed homepage 2");
   expected_differing_paths_.clear();
   expected_differing_paths_.insert(prefs::kHomePage);
 
   recorder.Clear();
   pref_value_store_->RefreshPolicyPrefsCompletion(
-      new TestingPrefStore(),
-      new TestingPrefStore(),
+      NewConfigurationPolicyPrefStore(),
+      NewConfigurationPolicyPrefStore(),
       new_recommended_store.release());
   EXPECT_EQ(expected_differing_paths_, recorder.changed_prefs());
 
   // Test adding a multi-key path.
-  new_managed_platform_store.reset(new TestingPrefStore());
-  dict = new DictionaryValue();
-  dict->SetString("segment1.segment2", "value");
-  new_managed_platform_store->set_prefs(dict);
+  new_managed_platform_store.reset(NewConfigurationPolicyPrefStore());
+  new_managed_platform_store->prefs()->SetString("segment1.segment2", "value");
   expected_differing_paths_.clear();
   expected_differing_paths_.insert(prefs::kHomePage);
   expected_differing_paths_.insert("segment1");
   expected_differing_paths_.insert("segment1.segment2");
 
   recorder.Clear();
   pref_value_store_->RefreshPolicyPrefsCompletion(
       new_managed_platform_store.release(),
-      new TestingPrefStore(),
-      new TestingPrefStore());
+      NewConfigurationPolicyPrefStore(),
+      NewConfigurationPolicyPrefStore());
   EXPECT_EQ(expected_differing_paths_, recorder.changed_prefs());
 }
 
-TEST_F(PrefValueStoreTest, TestConcurrentPolicyRefresh) {
+TEST_F(PrefValueStorePolicyRefreshTest, TestConcurrentPolicyRefresh) {
   PrefChangeRecorder recorder;
   EXPECT_CALL(pref_notifier_, OnPreferenceChanged(_))
       .WillRepeatedly(Invoke(&recorder, &PrefChangeRecorder::Record));
 
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       NewRunnableMethod(
           pref_value_store_.get(),
           &PrefValueStore::RefreshPolicyPrefs));
 
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       NewRunnableMethod(
           pref_value_store_.get(),
           &PrefValueStore::RefreshPolicyPrefs));
 
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       NewRunnableMethod(
           pref_value_store_.get(),
           &PrefValueStore::RefreshPolicyPrefs));
 
   loop_.RunAllPending();
   EXPECT_EQ(expected_differing_paths_, recorder.changed_prefs());
 }