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// 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 "chrome/browser/content_settings/pref_content_settings_provider.h"

#include "chrome/browser/content_settings/host_content_settings_map_unittest.h"
#include "chrome/browser/prefs/pref_service.h"
#include "chrome/common/pref_names.h"
#include "chrome/common/url_constants.h"
#include "chrome/test/testing_pref_service.h"
#include "chrome/test/testing_profile.h"
#include "testing/gtest/include/gtest/gtest.h"


namespace {

class PrefContentSettingsProviderTest : public testing::Test {
 public:
  PrefContentSettingsProviderTest()
      : ui_thread_(BrowserThread::UI, &message_loop_) {
  }

 protected:
  MessageLoop message_loop_;
  BrowserThread ui_thread_;
};

TEST_F(PrefContentSettingsProviderTest, DefaultValues) {
  TestingProfile profile;
  PrefContentSettingsProvider provider(&profile);

  ASSERT_TRUE(
      provider.CanProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
  ASSERT_FALSE(
      provider.DefaultSettingIsManaged(CONTENT_SETTINGS_TYPE_COOKIES));

  // Check setting defaults.
  EXPECT_EQ(CONTENT_SETTING_ALLOW,
            provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
  provider.UpdateDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES,
                                CONTENT_SETTING_BLOCK);
  EXPECT_EQ(CONTENT_SETTING_BLOCK,
            provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
  provider.ResetToDefaults();
  EXPECT_EQ(CONTENT_SETTING_ALLOW,
            provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
}

TEST_F(PrefContentSettingsProviderTest, Observer) {
  TestingProfile profile;
  PrefContentSettingsProvider provider(&profile);
  StubSettingsObserver observer;

  provider.UpdateDefaultSetting(
      CONTENT_SETTINGS_TYPE_IMAGES, CONTENT_SETTING_BLOCK);
  EXPECT_EQ(profile.GetHostContentSettingsMap(), observer.last_notifier);
  EXPECT_TRUE(observer.last_update_all);
  EXPECT_FALSE(observer.last_update_all_types);
  EXPECT_EQ(1, observer.counter);
}

TEST_F(PrefContentSettingsProviderTest, ObserveDefaultPref) {
  TestingProfile profile;
  PrefContentSettingsProvider provider(&profile);

  PrefService* prefs = profile.GetPrefs();

  // Make a copy of the default pref value so we can reset it later.
  scoped_ptr<Value> default_value(prefs->FindPreference(
      prefs::kDefaultContentSettings)->GetValue()->DeepCopy());

  provider.UpdateDefaultSetting(
      CONTENT_SETTINGS_TYPE_COOKIES, CONTENT_SETTING_BLOCK);
  EXPECT_EQ(CONTENT_SETTING_BLOCK,
            provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));

  // Make a copy of the pref's new value so we can reset it later.
  scoped_ptr<Value> new_value(prefs->FindPreference(
      prefs::kDefaultContentSettings)->GetValue()->DeepCopy());

  // Clearing the backing pref should also clear the internal cache.
  prefs->Set(prefs::kDefaultContentSettings, *default_value);
  EXPECT_EQ(CONTENT_SETTING_ALLOW,
            provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));

  // Reseting the pref to its previous value should update the cache.
  prefs->Set(prefs::kDefaultContentSettings, *new_value);
  EXPECT_EQ(CONTENT_SETTING_BLOCK,
            provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
}

TEST_F(PrefContentSettingsProviderTest, OffTheRecord) {
  TestingProfile profile;
  PrefContentSettingsProvider provider(&profile);

  profile.set_off_the_record(true);
  PrefContentSettingsProvider otr_provider(&profile);
  profile.set_off_the_record(false);

  EXPECT_EQ(CONTENT_SETTING_ALLOW,
            provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
  EXPECT_EQ(CONTENT_SETTING_ALLOW,
            otr_provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));

  // Changing content settings on the main provider should also affect the
  // off-the-record map.
  provider.UpdateDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES,
                                CONTENT_SETTING_BLOCK);
  EXPECT_EQ(CONTENT_SETTING_BLOCK,
            provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
  EXPECT_EQ(CONTENT_SETTING_BLOCK,
            otr_provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));

  // Changing content settings on the off-the-record provider should be ignored.
  otr_provider.UpdateDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES,
                                   CONTENT_SETTING_ALLOW);
  EXPECT_EQ(CONTENT_SETTING_BLOCK,
            provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
  EXPECT_EQ(CONTENT_SETTING_BLOCK,
            otr_provider.ProvideDefaultSetting(CONTENT_SETTINGS_TYPE_COOKIES));
}

}  // namespace