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- // 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 "components/prefs/mock_pref_change_callback.h"
- #include "components/prefs/pref_change_registrar.h"
- #include "components/prefs/pref_registry_simple.h"
- #include "components/prefs/scoped_user_pref_update.h"
- #include "components/prefs/testing_pref_service.h"
- #include "testing/gmock/include/gmock/gmock.h"
- #include "testing/gtest/include/gtest/gtest.h"
- using testing::_;
- using testing::Mock;
- class ScopedUserPrefUpdateTest : public testing::Test {
- public:
- ScopedUserPrefUpdateTest() : observer_(&prefs_) {}
- ~ScopedUserPrefUpdateTest() override {}
- protected:
- void SetUp() override {
- prefs_.registry()->RegisterDictionaryPref(kPref);
- registrar_.Init(&prefs_);
- registrar_.Add(kPref, observer_.GetCallback());
- }
- static const char kPref[];
- static const char kKey[];
- static const char kValue[];
- TestingPrefServiceSimple prefs_;
- MockPrefChangeCallback observer_;
- PrefChangeRegistrar registrar_;
- };
- const char ScopedUserPrefUpdateTest::kPref[] = "name";
- const char ScopedUserPrefUpdateTest::kKey[] = "key";
- const char ScopedUserPrefUpdateTest::kValue[] = "value";
- TEST_F(ScopedUserPrefUpdateTest, RegularUse) {
- // Dictionary that will be expected to be set at the end.
- base::Value expected_dictionary(base::Value::Type::DICTIONARY);
- expected_dictionary.SetStringKey(kKey, kValue);
- {
- EXPECT_CALL(observer_, OnPreferenceChanged(_)).Times(0);
- DictionaryPrefUpdate update(&prefs_, kPref);
- base::Value* value = update.Get();
- ASSERT_TRUE(value);
- value->SetStringKey(kKey, kValue);
- // The dictionary was created for us but the creation should have happened
- // silently without notifications.
- Mock::VerifyAndClearExpectations(&observer_);
- // Modifications happen online and are instantly visible, though.
- EXPECT_EQ(expected_dictionary, prefs_.GetValueDict(kPref));
- // Now we are leaving the scope of the update so we should be notified.
- observer_.Expect(kPref, &expected_dictionary);
- }
- Mock::VerifyAndClearExpectations(&observer_);
- EXPECT_EQ(expected_dictionary, prefs_.GetValueDict(kPref));
- }
- TEST_F(ScopedUserPrefUpdateTest, NeverTouchAnything) {
- const base::Value::Dict& old_value = prefs_.GetValueDict(kPref);
- EXPECT_CALL(observer_, OnPreferenceChanged(_)).Times(0);
- { DictionaryPrefUpdate update(&prefs_, kPref); }
- const base::Value::Dict& new_value = prefs_.GetValueDict(kPref);
- EXPECT_EQ(old_value, new_value);
- Mock::VerifyAndClearExpectations(&observer_);
- }
- TEST_F(ScopedUserPrefUpdateTest, UpdatingListPrefWithDefaults) {
- base::Value::List defaults;
- defaults.Append("firstvalue");
- defaults.Append("secondvalue");
- std::string pref_name = "mypref";
- prefs_.registry()->RegisterListPref(pref_name, std::move(defaults));
- EXPECT_EQ(2u, prefs_.GetValueList(pref_name).size());
- ListPrefUpdate update(&prefs_, pref_name);
- update->Append("thirdvalue");
- EXPECT_EQ(3u, prefs_.GetValueList(pref_name).size());
- }
- TEST_F(ScopedUserPrefUpdateTest, UpdatingDictionaryPrefWithDefaults) {
- base::Value::Dict defaults;
- defaults.Set("firstkey", "value");
- defaults.Set("secondkey", "value");
- std::string pref_name = "mypref";
- prefs_.registry()->RegisterDictionaryPref(pref_name, std::move(defaults));
- EXPECT_EQ(2u, prefs_.GetValueDict(pref_name).size());
- DictionaryPrefUpdate update(&prefs_, pref_name);
- update->SetStringKey("thirdkey", "value");
- EXPECT_EQ(3u, prefs_.GetValueDict(pref_name).size());
- }
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