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/download/download_prefs.h"
  10 #include "chrome/common/pref_names.h"
  11 #include "chrome/test/base/testing_pref_service_syncable.h"
  12 #include "components/user_prefs/pref_registry_syncable.h"
  13 #include "testing/gtest/include/gtest/gtest.h"
  14
  15 namespace chromeos {
  16 namespace {
  17
  18 class MyMockInputMethodManager : public input_method::MockInputMethodManager {
  19  public:
  20   MyMockInputMethodManager(StringPrefMember* previous,
  21                            StringPrefMember* current)
  22       : previous_(previous),
  23         current_(current) {
  24   }
  25   virtual ~MyMockInputMethodManager() {
  26   }
  27
  28   virtual void ChangeInputMethod(const std::string& input_method_id) OVERRIDE {
  29     last_input_method_id_ = input_method_id;
  30     // Do the same thing as BrowserStateMonitor::UpdateUserPreferences.
  31     const std::string current_input_method_on_pref = current_->GetValue();
  32     if (current_input_method_on_pref == input_method_id)
  33       return;
  34     previous_->SetValue(current_input_method_on_pref);
  35     current_->SetValue(input_method_id);
  36   }
  37
  38   std::string last_input_method_id_;
  39
  40  private:
  41   StringPrefMember* previous_;
  42   StringPrefMember* current_;
  43 };
  44
  45 }  // anonymous namespace
  46
  47 TEST(PreferencesTest, TestUpdatePrefOnBrowserScreenDetails) {
  48   TestingPrefServiceSyncable prefs;
  49   Preferences::RegisterProfilePrefs(prefs.registry());
  50   DownloadPrefs::RegisterProfilePrefs(prefs.registry());
  51   // kSelectFileLastDirectory is registered for Profile. Here we register it for
  52   // testing.
  53   prefs.registry()->RegisterStringPref(
  54       prefs::kSelectFileLastDirectory,
  55       std::string(),
  56       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
  57
  58   StringPrefMember previous;
  59   previous.Init(prefs::kLanguagePreviousInputMethod, &prefs);
  60   previous.SetValue("KeyboardA");
  61   StringPrefMember current;
  62   current.Init(prefs::kLanguageCurrentInputMethod, &prefs);
  63   current.SetValue("KeyboardB");
  64
  65   MyMockInputMethodManager mock_manager(&previous, &current);
  66   Preferences testee(&mock_manager);
  67   testee.InitUserPrefsForTesting(&prefs);
  68   testee.SetInputMethodListForTesting();
  69
  70   // Confirm they're unchanged.
  71   EXPECT_EQ("KeyboardA", previous.GetValue());
  72   EXPECT_EQ("KeyboardB", current.GetValue());
  73   EXPECT_EQ("KeyboardB", mock_manager.last_input_method_id_);
  74 }
  75
  76 }  // namespace chromeos