Move base/prefs to components/prefs

base/prefs/pref_change_registrar_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 "base/bind.h"
-#include "base/bind_helpers.h"
-#include "base/prefs/pref_change_registrar.h"
-#include "base/prefs/pref_observer.h"
-#include "base/prefs/pref_registry_simple.h"
-#include "base/prefs/testing_pref_service.h"
-#include "testing/gmock/include/gmock/gmock.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-using testing::Mock;
-using testing::Eq;
-
-namespace base {
-namespace {
-
-const char kHomePage[] = "homepage";
-const char kHomePageIsNewTabPage[] = "homepage_is_newtabpage";
-const char kApplicationLocale[] = "intl.app_locale";
-
-// A mock provider that allows us to capture pref observer changes.
-class MockPrefService : public TestingPrefServiceSimple {
- public:
-  MockPrefService() {}
-  virtual ~MockPrefService() {}
-
-  MOCK_METHOD2(AddPrefObserver, void(const std::string&, PrefObserver*));
-  MOCK_METHOD2(RemovePrefObserver, void(const std::string&, PrefObserver*));
-};
-
-}  // namespace
-
-class PrefChangeRegistrarTest : public testing::Test {
- public:
-  PrefChangeRegistrarTest() {}
-  ~PrefChangeRegistrarTest() override {}
-
- protected:
-  void SetUp() override;
-
-  base::Closure observer() const {
-    return base::Bind(&base::DoNothing);
-  }
-
-  MockPrefService* service() const { return service_.get(); }
-
- private:
-  scoped_ptr<MockPrefService> service_;
-};
-
-void PrefChangeRegistrarTest::SetUp() {
-  service_.reset(new MockPrefService());
-}
-
-TEST_F(PrefChangeRegistrarTest, AddAndRemove) {
-  PrefChangeRegistrar registrar;
-  registrar.Init(service());
-
-  // Test adding.
-  EXPECT_CALL(*service(),
-              AddPrefObserver(Eq(std::string("test.pref.1")), &registrar));
-  EXPECT_CALL(*service(),
-              AddPrefObserver(Eq(std::string("test.pref.2")), &registrar));
-  registrar.Add("test.pref.1", observer());
-  registrar.Add("test.pref.2", observer());
-  EXPECT_FALSE(registrar.IsEmpty());
-
-  // Test removing.
-  Mock::VerifyAndClearExpectations(service());
-  EXPECT_CALL(*service(),
-              RemovePrefObserver(Eq(std::string("test.pref.1")), &registrar));
-  EXPECT_CALL(*service(),
-              RemovePrefObserver(Eq(std::string("test.pref.2")), &registrar));
-  registrar.Remove("test.pref.1");
-  registrar.Remove("test.pref.2");
-  EXPECT_TRUE(registrar.IsEmpty());
-
-  // Explicitly check the expectations now to make sure that the Removes
-  // worked (rather than the registrar destructor doing the work).
-  Mock::VerifyAndClearExpectations(service());
-}
-
-TEST_F(PrefChangeRegistrarTest, AutoRemove) {
-  PrefChangeRegistrar registrar;
-  registrar.Init(service());
-
-  // Setup of auto-remove.
-  EXPECT_CALL(*service(),
-              AddPrefObserver(Eq(std::string("test.pref.1")), &registrar));
-  registrar.Add("test.pref.1", observer());
-  Mock::VerifyAndClearExpectations(service());
-  EXPECT_FALSE(registrar.IsEmpty());
-
-  // Test auto-removing.
-  EXPECT_CALL(*service(),
-              RemovePrefObserver(Eq(std::string("test.pref.1")), &registrar));
-}
-
-TEST_F(PrefChangeRegistrarTest, RemoveAll) {
-  PrefChangeRegistrar registrar;
-  registrar.Init(service());
-
-  EXPECT_CALL(*service(),
-              AddPrefObserver(Eq(std::string("test.pref.1")), &registrar));
-  EXPECT_CALL(*service(),
-              AddPrefObserver(Eq(std::string("test.pref.2")), &registrar));
-  registrar.Add("test.pref.1", observer());
-  registrar.Add("test.pref.2", observer());
-  Mock::VerifyAndClearExpectations(service());
-
-  EXPECT_CALL(*service(),
-              RemovePrefObserver(Eq(std::string("test.pref.1")), &registrar));
-  EXPECT_CALL(*service(),
-              RemovePrefObserver(Eq(std::string("test.pref.2")), &registrar));
-  registrar.RemoveAll();
-  EXPECT_TRUE(registrar.IsEmpty());
-
-  // Explicitly check the expectations now to make sure that the RemoveAll
-  // worked (rather than the registrar destructor doing the work).
-  Mock::VerifyAndClearExpectations(service());
-}
-
-class ObserveSetOfPreferencesTest : public testing::Test {
- public:
-  virtual void SetUp() {
-    pref_service_.reset(new TestingPrefServiceSimple);
-    PrefRegistrySimple* registry = pref_service_->registry();
-    registry->RegisterStringPref(kHomePage, "http://google.com");
-    registry->RegisterBooleanPref(kHomePageIsNewTabPage, false);
-    registry->RegisterStringPref(kApplicationLocale, std::string());
-  }
-
-  PrefChangeRegistrar* CreatePrefChangeRegistrar() {
-    PrefChangeRegistrar* pref_set = new PrefChangeRegistrar();
-    base::Closure callback = base::Bind(&base::DoNothing);
-    pref_set->Init(pref_service_.get());
-    pref_set->Add(kHomePage, callback);
-    pref_set->Add(kHomePageIsNewTabPage, callback);
-    return pref_set;
-  }
-
-  MOCK_METHOD1(OnPreferenceChanged, void(const std::string&));
-
-  scoped_ptr<TestingPrefServiceSimple> pref_service_;
-};
-
-TEST_F(ObserveSetOfPreferencesTest, IsObserved) {
-  scoped_ptr<PrefChangeRegistrar> pref_set(CreatePrefChangeRegistrar());
-  EXPECT_TRUE(pref_set->IsObserved(kHomePage));
-  EXPECT_TRUE(pref_set->IsObserved(kHomePageIsNewTabPage));
-  EXPECT_FALSE(pref_set->IsObserved(kApplicationLocale));
-}
-
-TEST_F(ObserveSetOfPreferencesTest, IsManaged) {
-  scoped_ptr<PrefChangeRegistrar> pref_set(CreatePrefChangeRegistrar());
-  EXPECT_FALSE(pref_set->IsManaged());
-  pref_service_->SetManagedPref(kHomePage,
-                                new StringValue("http://crbug.com"));
-  EXPECT_TRUE(pref_set->IsManaged());
-  pref_service_->SetManagedPref(kHomePageIsNewTabPage,
-                                new FundamentalValue(true));
-  EXPECT_TRUE(pref_set->IsManaged());
-  pref_service_->RemoveManagedPref(kHomePage);
-  EXPECT_TRUE(pref_set->IsManaged());
-  pref_service_->RemoveManagedPref(kHomePageIsNewTabPage);
-  EXPECT_FALSE(pref_set->IsManaged());
-}
-
-TEST_F(ObserveSetOfPreferencesTest, Observe) {
-  using testing::_;
-  using testing::Mock;
-
-  PrefChangeRegistrar pref_set;
-  PrefChangeRegistrar::NamedChangeCallback callback = base::Bind(
-      &ObserveSetOfPreferencesTest::OnPreferenceChanged,
-      base::Unretained(this));
-  pref_set.Init(pref_service_.get());
-  pref_set.Add(kHomePage, callback);
-  pref_set.Add(kHomePageIsNewTabPage, callback);
-
-  EXPECT_CALL(*this, OnPreferenceChanged(kHomePage));
-  pref_service_->SetUserPref(kHomePage, new StringValue("http://crbug.com"));
-  Mock::VerifyAndClearExpectations(this);
-
-  EXPECT_CALL(*this, OnPreferenceChanged(kHomePageIsNewTabPage));
-  pref_service_->SetUserPref(kHomePageIsNewTabPage,
-                             new FundamentalValue(true));
-  Mock::VerifyAndClearExpectations(this);
-
-  EXPECT_CALL(*this, OnPreferenceChanged(_)).Times(0);
-  pref_service_->SetUserPref(kApplicationLocale, new StringValue("en_US.utf8"));
-  Mock::VerifyAndClearExpectations(this);
-}
-
-}  // namespace base