chrome/browser/chromeos/preferences_unittest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/chromeos/preferences.h"
   6
   7 #include "base/prefs/pref_member.h"
   8 #include "chrome/browser/chromeos/input_method/mock_input_method_manager.h"
   9 #include "chrome/browser/chromeos/login/fake_user_manager.h"
  10 #include "chrome/browser/chromeos/login/user_manager.h"
  11 #include "chrome/browser/download/download_prefs.h"
  12 #include "chrome/common/pref_names.h"
  13 #include "chrome/test/base/testing_pref_service_syncable.h"
  14 #include "components/user_prefs/pref_registry_syncable.h"
  15 #include "testing/gtest/include/gtest/gtest.h"
  16
  17 namespace chromeos {
  18 namespace {
  19
  20 class MyMockInputMethodManager : public input_method::MockInputMethodManager {
  21  public:
  22   MyMockInputMethodManager(StringPrefMember* previous,
  23                            StringPrefMember* current)
  24       : previous_(previous),
  25         current_(current) {
  26   }
  27   virtual ~MyMockInputMethodManager() {
  28   }
  29
  30   virtual void ChangeInputMethod(const std::string& input_method_id) OVERRIDE {
  31     last_input_method_id_ = input_method_id;
  32     // Do the same thing as BrowserStateMonitor::UpdateUserPreferences.
  33     const std::string current_input_method_on_pref = current_->GetValue();
  34     if (current_input_method_on_pref == input_method_id)
  35       return;
  36     previous_->SetValue(current_input_method_on_pref);
  37     current_->SetValue(input_method_id);
  38   }
  39
  40   std::string last_input_method_id_;
  41
  42  private:
  43   StringPrefMember* previous_;
  44   StringPrefMember* current_;
  45 };
  46
  47 }  // anonymous namespace
  48
  49 TEST(PreferencesTest, TestUpdatePrefOnBrowserScreenDetails) {
  50   chromeos::FakeUserManager* user_manager = new chromeos::FakeUserManager();
  51   chromeos::ScopedUserManagerEnabler user_manager_enabler(user_manager);
  52   const char test_user_email[] = "test_user@example.com";
  53   const User* test_user = user_manager->AddUser(test_user_email);
  54   user_manager->LoginUser(test_user_email);
  55
  56   TestingPrefServiceSyncable prefs;
  57   Preferences::RegisterProfilePrefs(prefs.registry());
  58   DownloadPrefs::RegisterProfilePrefs(prefs.registry());
  59   // kSelectFileLastDirectory is registered for Profile. Here we register it for
  60   // testing.
  61   prefs.registry()->RegisterStringPref(
  62       prefs::kSelectFileLastDirectory,
  63       std::string(),
  64       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
  65
  66   StringPrefMember previous;
  67   previous.Init(prefs::kLanguagePreviousInputMethod, &prefs);
  68   previous.SetValue("KeyboardA");
  69   StringPrefMember current;
  70   current.Init(prefs::kLanguageCurrentInputMethod, &prefs);
  71   current.SetValue("KeyboardB");
  72
  73   MyMockInputMethodManager mock_manager(&previous, &current);
  74   Preferences testee(&mock_manager);
  75   testee.InitUserPrefsForTesting(&prefs, test_user);
  76   testee.SetInputMethodListForTesting();
  77
  78   // Confirm they're unchanged.
  79   EXPECT_EQ("KeyboardA", previous.GetValue());
  80   EXPECT_EQ("KeyboardB", current.GetValue());
  81   EXPECT_EQ("KeyboardB", mock_manager.last_input_method_id_);
  82 }
  83
  84 }  // namespace chromeos