// Copyright (c) 2012 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/prefs/session_startup_pref.h"
#include "chrome/common/pref_names.h"
#include "chrome/test/base/testing_pref_service_syncable.h"
#include "components/pref_registry/pref_registry_syncable.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"

#if defined(OS_MACOSX)
#include "chrome/browser/ui/cocoa/window_restore_utils.h"
#endif

// Unit tests for SessionStartupPref.
class SessionStartupPrefTest : public testing::Test {
 public:
  void SetUp() override {
    pref_service_.reset(new TestingPrefServiceSyncable);
    SessionStartupPref::RegisterProfilePrefs(registry());
    registry()->RegisterBooleanPref(
        prefs::kHomePageIsNewTabPage,
        true,
        user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
    // Make the tests independent of the Mac startup pref migration (see
    // SessionStartupPref::MigrateMacDefaultPrefIfNecessary).
    registry()->RegisterStringPref(
        prefs::kProfileCreatedByVersion,
        "22.0.0.0",
        user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
  }

  bool IsUseLastOpenDefault() {
    // On ChromeOS, the default SessionStartupPref is LAST.
#if defined(OS_CHROMEOS)
    return true;
#else
    return false;
#endif
  }

  user_prefs::PrefRegistrySyncable* registry() {
    return pref_service_->registry();
  }

  scoped_ptr<TestingPrefServiceSyncable> pref_service_;
};

TEST_F(SessionStartupPrefTest, URLListIsFixedUp) {
  base::ListValue* url_pref_list = new base::ListValue;
  url_pref_list->Set(0, new base::StringValue("google.com"));
  url_pref_list->Set(1, new base::StringValue("chromium.org"));
  pref_service_->SetUserPref(prefs::kURLsToRestoreOnStartup, url_pref_list);

  SessionStartupPref result =
      SessionStartupPref::GetStartupPref(pref_service_.get());
  EXPECT_EQ(2u, result.urls.size());
  EXPECT_EQ("http://google.com/", result.urls[0].spec());
  EXPECT_EQ("http://chromium.org/", result.urls[1].spec());
}

TEST_F(SessionStartupPrefTest, URLListManagedOverridesUser) {
  base::ListValue* url_pref_list1 = new base::ListValue;
  url_pref_list1->Set(0, new base::StringValue("chromium.org"));
  pref_service_->SetUserPref(prefs::kURLsToRestoreOnStartup, url_pref_list1);

  base::ListValue* url_pref_list2 = new base::ListValue;
  url_pref_list2->Set(0, new base::StringValue("chromium.org"));
  url_pref_list2->Set(1, new base::StringValue("chromium.org"));
  url_pref_list2->Set(2, new base::StringValue("chromium.org"));
  pref_service_->SetManagedPref(prefs::kURLsToRestoreOnStartup,
                                url_pref_list2);

  SessionStartupPref result =
      SessionStartupPref::GetStartupPref(pref_service_.get());
  EXPECT_EQ(3u, result.urls.size());

  SessionStartupPref override_test =
      SessionStartupPref(SessionStartupPref::URLS);
  override_test.urls.push_back(GURL("dev.chromium.org"));
  SessionStartupPref::SetStartupPref(pref_service_.get(), override_test);

  result = SessionStartupPref::GetStartupPref(pref_service_.get());
  EXPECT_EQ(3u, result.urls.size());
}

// Checks to make sure that if the user had previously not selected anything
// (so that, in effect, the default value "Open the homepage" was selected),
// their preferences are migrated on upgrade to m19.
TEST_F(SessionStartupPrefTest, DefaultMigration) {
  registry()->RegisterStringPref(
      prefs::kHomePage,
      "http://google.com/",
      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
  pref_service_->SetString(prefs::kHomePage, "http://chromium.org/");
  pref_service_->SetBoolean(prefs::kHomePageIsNewTabPage, false);

  EXPECT_FALSE(pref_service_->HasPrefPath(prefs::kRestoreOnStartup));

  SessionStartupPref pref = SessionStartupPref::GetStartupPref(
      pref_service_.get());

  if (IsUseLastOpenDefault()) {
    EXPECT_EQ(SessionStartupPref::LAST, pref.type);
    EXPECT_EQ(0U, pref.urls.size());
  } else {
    EXPECT_EQ(SessionStartupPref::URLS, pref.type);
    EXPECT_EQ(1U, pref.urls.size());
    EXPECT_EQ(GURL("http://chromium.org/"), pref.urls[0]);
  }
}

// Checks to make sure that if the user had previously not selected anything
// (so that, in effect, the default value "Open the homepage" was selected),
// and the NTP is being used for the homepage, their preferences are migrated
// to "Open the New Tab Page" on upgrade to M19.
TEST_F(SessionStartupPrefTest, DefaultMigrationHomepageIsNTP) {
  registry()->RegisterStringPref(
      prefs::kHomePage,
      "http://google.com/",
      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
  pref_service_->SetString(prefs::kHomePage, "http://chromium.org/");
  pref_service_->SetBoolean(prefs::kHomePageIsNewTabPage, true);

  EXPECT_FALSE(pref_service_->HasPrefPath(prefs::kRestoreOnStartup));

  SessionStartupPref pref = SessionStartupPref::GetStartupPref(
      pref_service_.get());

  if (IsUseLastOpenDefault())
    EXPECT_EQ(SessionStartupPref::LAST, pref.type);
  else
    EXPECT_EQ(SessionStartupPref::DEFAULT, pref.type);

  // The "URLs to restore on startup" shouldn't get migrated.
  EXPECT_EQ(0U, pref.urls.size());
}

// Checks to make sure that if the user had previously selected "Open the
// "homepage", their preferences are migrated on upgrade to M19.
TEST_F(SessionStartupPrefTest, HomePageMigration) {
  registry()->RegisterStringPref(
      prefs::kHomePage,
      "http://google.com/",
      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);

  // By design, it's impossible to set the 'restore on startup' pref to 0
  // ("open the homepage") using SessionStartupPref::SetStartupPref(), so set it
  // using the pref service directly.
  pref_service_->SetInteger(prefs::kRestoreOnStartup, /*kPrefValueHomePage*/ 0);
  pref_service_->SetString(prefs::kHomePage, "http://chromium.org/");
  pref_service_->SetBoolean(prefs::kHomePageIsNewTabPage, false);

  SessionStartupPref pref = SessionStartupPref::GetStartupPref(
      pref_service_.get());

  EXPECT_EQ(SessionStartupPref::URLS, pref.type);
  EXPECT_EQ(1U, pref.urls.size());
  EXPECT_EQ(GURL("http://chromium.org/"), pref.urls[0]);
}

// Checks to make sure that if the user had previously selected "Open the
// "homepage", and the NTP is being used for the homepage, their preferences
// are migrated on upgrade to M19.
TEST_F(SessionStartupPrefTest, HomePageMigrationHomepageIsNTP) {
  registry()->RegisterStringPref(
      prefs::kHomePage,
      "http://google.com/",
      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);

  // By design, it's impossible to set the 'restore on startup' pref to 0
  // ("open the homepage") using SessionStartupPref::SetStartupPref(), so set it
  // using the pref service directly.
  pref_service_->SetInteger(prefs::kRestoreOnStartup, /*kPrefValueHomePage*/ 0);
  pref_service_->SetString(prefs::kHomePage, "http://chromium.org/");
  pref_service_->SetBoolean(prefs::kHomePageIsNewTabPage, true);

  SessionStartupPref pref = SessionStartupPref::GetStartupPref(
      pref_service_.get());

  EXPECT_EQ(SessionStartupPref::DEFAULT, pref.type);
}

#if defined(OS_MACOSX)
// See SessionStartupPref::MigrateMacDefaultPrefIfNecessary.
TEST_F(SessionStartupPrefTest, MacDefaultStartupPrefMigration) {
  if (!restore_utils::IsWindowRestoreEnabled())
    return;

  // Use an old profile.
  pref_service_->SetString(prefs::kProfileCreatedByVersion, "19.0.0.0");
  ASSERT_TRUE(SessionStartupPref::TypeIsDefault(pref_service_.get()));

  // Trigger the migration.
  SessionStartupPref pref = SessionStartupPref::GetStartupPref(
      pref_service_.get());

  // The pref is now explicit.
  EXPECT_EQ(SessionStartupPref::LAST, pref.type);
  EXPECT_FALSE(SessionStartupPref::TypeIsDefault(pref_service_.get()));
}
#endif