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      1 // Copyright (c) 2011 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/ui/toolbar/encoding_menu_controller.h"
      6 
      7 #include <string>
      8 
      9 #include "base/basictypes.h"
     10 #include "base/message_loop/message_loop.h"
     11 #include "base/prefs/pref_service.h"
     12 #include "chrome/app/chrome_command_ids.h"
     13 #include "chrome/browser/profiles/profile.h"
     14 #include "chrome/common/pref_names.h"
     15 #include "chrome/test/base/testing_profile.h"
     16 #include "content/public/test/test_browser_thread.h"
     17 #include "testing/gtest/include/gtest/gtest.h"
     18 
     19 using content::BrowserThread;
     20 
     21 class EncodingMenuControllerTest : public testing::Test {
     22  public:
     23   EncodingMenuControllerTest()
     24       : ui_thread_(BrowserThread::UI, &message_loop_) {}
     25  private:
     26   base::MessageLoop message_loop_;
     27   content::TestBrowserThread ui_thread_;
     28 };
     29 
     30 TEST_F(EncodingMenuControllerTest, EncodingIDsBelongTest) {
     31   EncodingMenuController controller;
     32 
     33   // Check some bogus ids to make sure they're never valid.
     34   ASSERT_FALSE(controller.DoesCommandBelongToEncodingMenu(0));
     35   ASSERT_FALSE(controller.DoesCommandBelongToEncodingMenu(-1));
     36 
     37   int num_valid_encoding_ids = controller.NumValidGUIEncodingIDs();
     38   const int* valid_encodings = controller.ValidGUIEncodingIDs();
     39   ASSERT_TRUE(controller.DoesCommandBelongToEncodingMenu(
     40       IDC_ENCODING_AUTO_DETECT));
     41   // Check that all valid encodings are accepted.
     42   for (int i = 0; i < num_valid_encoding_ids; ++i) {
     43     ASSERT_TRUE(controller.DoesCommandBelongToEncodingMenu(valid_encodings[i]));
     44   }
     45 
     46   // This test asserts that we haven't added a new valid ID without including it
     47   // in the kValidEncodingIds test list above.
     48   // The premise is that new encodings will be added directly after the current
     49   // ones so we'll catch such cases.
     50   int one_past_largest_id = valid_encodings[num_valid_encoding_ids - 1] + 1;
     51   ASSERT_FALSE(controller.DoesCommandBelongToEncodingMenu(one_past_largest_id));
     52 }
     53 
     54 TEST_F(EncodingMenuControllerTest, ListEncodingMenuItems) {
     55   typedef EncodingMenuController::EncodingMenuItemList EncodingMenuItemList;
     56   EncodingMenuController controller;
     57 
     58   EncodingMenuItemList english_items;
     59   TestingProfile profile_en;
     60 
     61   controller.GetEncodingMenuItems(&profile_en, &english_items);
     62 
     63   // Make sure there are items in the lists.
     64   ASSERT_FALSE(english_items.empty());
     65   // Make sure that autodetect is the first item on both menus
     66   ASSERT_EQ(english_items[0].first, IDC_ENCODING_AUTO_DETECT);
     67 }
     68 
     69 TEST_F(EncodingMenuControllerTest, IsItemChecked) {
     70   TestingProfile profile_en;
     71   std::string encoding("UTF-8");
     72 
     73   // Check that enabling and disabling autodetect works.
     74   bool autodetect_enabed[] = {true, false};
     75   PrefService* prefs = profile_en.GetPrefs();
     76   EncodingMenuController controller;
     77   for (size_t i = 0; i < arraysize(autodetect_enabed); ++i) {
     78     bool enabled = autodetect_enabed[i];
     79     prefs->SetBoolean(prefs::kWebKitUsesUniversalDetector, enabled);
     80     ASSERT_TRUE(controller.IsItemChecked(&profile_en,
     81                                          encoding,
     82                                          IDC_ENCODING_AUTO_DETECT) == enabled);
     83   }
     84 
     85   // Check all valid encodings, make sure only one is enabled when autodetection
     86   // is turned off.
     87   prefs->SetBoolean(prefs::kWebKitUsesUniversalDetector, false);
     88   bool encoding_is_enabled = false;
     89   size_t num_valid_encoding_ids = controller.NumValidGUIEncodingIDs();
     90   const int* valid_encodings = controller.ValidGUIEncodingIDs();
     91   for (size_t i = 0; i < num_valid_encoding_ids; ++i) {
     92     bool on = controller.IsItemChecked(&profile_en,
     93                                        encoding,
     94                                        valid_encodings[i]);
     95     // Only one item in the encoding menu can be selected at a time.
     96     ASSERT_FALSE(on && encoding_is_enabled);
     97     encoding_is_enabled |= on;
     98   }
     99 
    100   // Make sure at least one encoding is enabled.
    101   ASSERT_TRUE(encoding_is_enabled);
    102 }
    103