Add ManagedUserSettingsService and a SupervisedUserPrefStore using it.

chrome/browser/managed_mode/supervised_user_pref_store_unittest.cc

+// Copyright 2013 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/memory/ref_counted.h"
+#include "base/prefs/pref_store.h"
+#include "base/values.h"
+#include "chrome/browser/managed_mode/managed_user_constants.h"
+#include "chrome/browser/managed_mode/managed_user_settings_service.h"
+#include "chrome/browser/managed_mode/supervised_user_pref_store.h"
+#include "chrome/common/pref_names.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using base::DictionaryValue;
+using base::Value;
+
+namespace {
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// FakeManagedUserSettingsService
+//
+///////////////////////////////////////////////////////////////////////////////
+
+class FakeManagedUserSettingsService : public ManagedUserSettingsService {
+ public:
+  FakeManagedUserSettingsService();
+  virtual ~FakeManagedUserSettingsService();
+
+  // Takes ownership of |value|.
+  void SetValueForSetting(const std::string& name, Value* value);
+
+  void SetReady();
+
+  // ManagedUserSettingsService implementation:
+  virtual scoped_ptr<DictionaryValue> GetSettings() const OVERRIDE;
+  virtual bool IsReady() const OVERRIDE;
+
+ private:
+  bool is_ready_;
+  DictionaryValue settings_;
+};
+
+FakeManagedUserSettingsService::FakeManagedUserSettingsService()
+    : is_ready_(false) {}
+FakeManagedUserSettingsService::~FakeManagedUserSettingsService() {}
+
+void FakeManagedUserSettingsService::SetValueForSetting(const std::string& name,
+                                                        Value* value) {
+  settings_.SetWithoutPathExpansion(name, value);
+  InformSubscribers();
+}
+
+void FakeManagedUserSettingsService::SetReady() {
+  is_ready_ = true;
+  InformSubscribers();
+}
+
+scoped_ptr<DictionaryValue>
+FakeManagedUserSettingsService::GetSettings() const {
+  return make_scoped_ptr(settings_.DeepCopy());
+}
+
+bool FakeManagedUserSettingsService::IsReady() const {
+  return is_ready_;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// SupervisedUserPrefStoreFixture
+//
+///////////////////////////////////////////////////////////////////////////////
+
+class SupervisedUserPrefStoreFixture : public PrefStore::Observer {
+ public:
+  explicit SupervisedUserPrefStoreFixture(
+      ManagedUserSettingsService* settings_service);
+  virtual ~SupervisedUserPrefStoreFixture();
+
+  DictionaryValue* changed_prefs() {
+    return &changed_prefs_;
+  }
+
+  bool initialization_completed() const {
+    return initialization_completed_;
+  }
+
+  // PrefStore::Observer implementation:
+  virtual void OnPrefValueChanged(const std::string& key) OVERRIDE;
+  virtual void OnInitializationCompleted(bool succeeded) OVERRIDE;
+
+private:
+  scoped_refptr<SupervisedUserPrefStore> pref_store_;
+  DictionaryValue changed_prefs_;
+  bool initialization_completed_;
+};
+
+SupervisedUserPrefStoreFixture::SupervisedUserPrefStoreFixture(
+    ManagedUserSettingsService* settings_service)
+    : pref_store_(new SupervisedUserPrefStore(settings_service)),
+      initialization_completed_(pref_store_->IsInitializationComplete()) {
+  pref_store_->AddObserver(this);
+}
+
+SupervisedUserPrefStoreFixture::~SupervisedUserPrefStoreFixture() {
+  pref_store_->RemoveObserver(this);
+}
+
+void SupervisedUserPrefStoreFixture::OnPrefValueChanged(
+    const std::string& key) {
+  const Value* value = NULL;
+  ASSERT_TRUE(pref_store_->GetValue(key, &value));
+  changed_prefs_.Set(key, value->DeepCopy());
+}
+
+void SupervisedUserPrefStoreFixture::OnInitializationCompleted(bool succeeded) {
+  EXPECT_FALSE(initialization_completed_);
+  EXPECT_TRUE(succeeded);
+  EXPECT_TRUE(pref_store_->IsInitializationComplete());
+  initialization_completed_ = true;
+}
+
+}  // namespace
+
+TEST(SupervisedUserPrefStoreTest, ConfigureSettings) {
+  FakeManagedUserSettingsService service;
+  SupervisedUserPrefStoreFixture fixture(&service);
+  EXPECT_FALSE(fixture.initialization_completed());
+
+  // Prefs should not change yet when the service is ready, but not
+  // activated yet.
+  service.SetReady();
+  EXPECT_TRUE(fixture.initialization_completed());
+  EXPECT_EQ(0u, fixture.changed_prefs()->size());
+
+  service.Activate();
+
+  // kAllowDeletingBrowserHistory is hardcoded to false for managed users.
+  bool allow_deleting_browser_history = true;
+  EXPECT_TRUE(fixture.changed_prefs()->GetBoolean(
+      prefs::kAllowDeletingBrowserHistory, &allow_deleting_browser_history));
+  EXPECT_FALSE(allow_deleting_browser_history);
+
+  // kManagedModeManualHosts does not have a hardcoded value.
+  DictionaryValue* manual_hosts = NULL;
+  EXPECT_FALSE(fixture.changed_prefs()->GetDictionary(
+      prefs::kManagedModeManualHosts, &manual_hosts));
+
+  // kForceSafeSearch defaults to true for managed users.
+  bool force_safesearch = false;
+  EXPECT_TRUE(fixture.changed_prefs()->GetBoolean(prefs::kForceSafeSearch,
+                                                  &force_safesearch));
+  EXPECT_TRUE(force_safesearch);
+
+  // Activating the service again should not change anything.
+  fixture.changed_prefs()->Clear();
+  service.Activate();
+  EXPECT_EQ(0u, fixture.changed_prefs()->size());
+
+  // kManagedModeManualHosts can be configured by the custodian.
+  scoped_ptr<DictionaryValue> dict(new DictionaryValue);
+  dict->SetBoolean("example.com", true);
+  dict->SetBoolean("moose.org", false);
+  service.SetValueForSetting(managed_users::kContentPackManualBehaviorHosts,
+                             dict->DeepCopy());
+  EXPECT_EQ(1u, fixture.changed_prefs()->size());
+  ASSERT_TRUE(fixture.changed_prefs()->GetDictionary(
+      prefs::kManagedModeManualHosts, &manual_hosts));
+  EXPECT_TRUE(manual_hosts->Equals(dict.get()));
+
+  // kForceSafeSearch can be configured by the custodian, overriding the
+  // hardcoded default.
+  fixture.changed_prefs()->Clear();
+  service.SetValueForSetting(managed_users::kForceSafeSearch,
+                             new base::FundamentalValue(false));
+  EXPECT_EQ(1u, fixture.changed_prefs()->size());
+  EXPECT_TRUE(fixture.changed_prefs()->GetBoolean(prefs::kForceSafeSearch,
+                                                  &force_safesearch));
+  EXPECT_FALSE(force_safesearch);
+}
+
+TEST(SupervisedUserPrefStoreTest, ActivateSettingsBeforeInitialization) {
+  FakeManagedUserSettingsService service;
+  SupervisedUserPrefStoreFixture fixture(&service);
+  EXPECT_FALSE(fixture.initialization_completed());
+
+  service.Activate();
+  EXPECT_FALSE(fixture.initialization_completed());
+  EXPECT_EQ(0u, fixture.changed_prefs()->size());
+
+  service.SetReady();
+  EXPECT_TRUE(fixture.initialization_completed());
+  EXPECT_EQ(0u, fixture.changed_prefs()->size());
+}
+
+TEST(SupervisedUserPrefStoreTest, CreatePrefStoreAfterInitialization) {
+  FakeManagedUserSettingsService service;
+  service.SetReady();
+  service.Activate();
+
+  SupervisedUserPrefStoreFixture fixture(&service);
+  EXPECT_TRUE(fixture.initialization_completed());
+  EXPECT_EQ(0u, fixture.changed_prefs()->size());
+}