src/chrome/browser/chromeos/input_method/input_method_util_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/input_method/input_method_util.h"
   6
   7 #include <string>
   8
   9 #include "base/bind.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/strings/utf_string_conversions.h"
  12 #include "chromeos/ime/fake_input_method_delegate.h"
  13 #include "chromeos/ime/input_method_manager.h"
  14 #include "chromeos/ime/input_method_whitelist.h"
  15 #include "grit/generated_resources.h"
  16 #include "testing/gtest/include/gtest/gtest.h"
  17 #include "ui/base/l10n/l10n_util.h"
  18
  19 using base::ASCIIToUTF16;
  20
  21 namespace chromeos {
  22
  23 extern const char* kExtensionImePrefix;
  24
  25 namespace input_method {
  26
  27 namespace {
  28
  29 const char pinyin_ime_id[] =
  30     "_comp_ime_nmblnjkfdkabgdofidlkienfnnbjhnabzh-t-i0-pinyin";
  31 const char zhuyin_ime_id[] =
  32     "_comp_ime_goedamlknlnjaengojinmfgpmdjmkooozh-hant-t-i0-und";
  33
  34 class TestableInputMethodUtil : public InputMethodUtil {
  35  public:
  36   explicit TestableInputMethodUtil(InputMethodDelegate* delegate,
  37                                    scoped_ptr<InputMethodDescriptors> methods)
  38       : InputMethodUtil(delegate, methods.Pass()) {
  39   }
  40   // Change access rights.
  41   using InputMethodUtil::GetInputMethodIdsFromLanguageCodeInternal;
  42   using InputMethodUtil::GetKeyboardLayoutName;
  43   using InputMethodUtil::ReloadInternalMaps;
  44   using InputMethodUtil::supported_input_methods_;
  45 };
  46
  47 }  // namespace
  48
  49 class InputMethodUtilTest : public testing::Test {
  50  public:
  51   InputMethodUtilTest()
  52       : util_(&delegate_, whitelist_.GetSupportedInputMethods()) {
  53     delegate_.set_get_localized_string_callback(
  54         base::Bind(&l10n_util::GetStringUTF16));
  55     delegate_.set_get_display_language_name_callback(
  56         base::Bind(&InputMethodUtilTest::GetDisplayLanguageName));
  57   }
  58
  59   virtual void SetUp() OVERRIDE {
  60     InputMethodDescriptors input_methods;
  61
  62     std::vector<std::string> layouts;
  63     std::vector<std::string> languages;
  64     layouts.push_back("us");
  65     languages.push_back("zh-CN");
  66
  67     InputMethodDescriptor pinyin_ime(pinyin_ime_id,
  68                                      "Pinyin input for testing",
  69                                      layouts,
  70                                      languages,
  71                                      false,
  72                                      GURL(""),
  73                                      GURL(""));
  74     input_methods.push_back(pinyin_ime);
  75
  76     languages.clear();
  77     languages.push_back("zh-TW");
  78     InputMethodDescriptor zhuyin_ime(zhuyin_ime_id,
  79                                      "Zhuyin input for testing",
  80                                      layouts,
  81                                      languages,
  82                                      false,
  83                                      GURL(""),
  84                                      GURL(""));
  85     input_methods.push_back(zhuyin_ime);
  86
  87     util_.SetComponentExtensions(input_methods);
  88   }
  89
  90   InputMethodDescriptor GetDesc(const std::string& id,
  91                                 const std::string& raw_layout,
  92                                 const std::string& language_code) {
  93     std::vector<std::string> layouts;
  94     layouts.push_back(raw_layout);
  95     std::vector<std::string> languages;
  96     languages.push_back(language_code);
  97     return InputMethodDescriptor(id,
  98                                  "",
  99                                  layouts,
 100                                  languages,
 101                                  true,
 102                                  GURL(),  // options page url
 103                                  GURL());  // input view page url
 104   }
 105
 106   static base::string16 GetDisplayLanguageName(const std::string& language_code) {
 107     return l10n_util::GetDisplayNameForLocale(language_code, "en", true);
 108   }
 109
 110   FakeInputMethodDelegate delegate_;
 111   InputMethodWhitelist whitelist_;
 112   TestableInputMethodUtil util_;
 113 };
 114
 115 TEST_F(InputMethodUtilTest, GetInputMethodShortNameTest) {
 116   // Test normal cases. Two-letter language code should be returned.
 117   {
 118     InputMethodDescriptor desc = GetDesc("m17n:fa:isiri",  // input method id
 119                                          "us",  // keyboard layout name
 120                                          "fa");  // language name
 121     EXPECT_EQ(ASCIIToUTF16("FA"), util_.GetInputMethodShortName(desc));
 122   }
 123   {
 124     InputMethodDescriptor desc = GetDesc("mozc-hangul", "us", "ko");
 125     EXPECT_EQ(base::UTF8ToUTF16("\xed\x95\x9c"),
 126               util_.GetInputMethodShortName(desc));
 127   }
 128   {
 129     InputMethodDescriptor desc = GetDesc("invalid-id", "us", "xx");
 130     // Upper-case string of the unknown language code, "xx", should be returned.
 131     EXPECT_EQ(ASCIIToUTF16("XX"), util_.GetInputMethodShortName(desc));
 132   }
 133
 134   // Test special cases.
 135   {
 136     InputMethodDescriptor desc = GetDesc("xkb:us:dvorak:eng", "us", "en-US");
 137     EXPECT_EQ(ASCIIToUTF16("DV"), util_.GetInputMethodShortName(desc));
 138   }
 139   {
 140     InputMethodDescriptor desc = GetDesc("xkb:us:colemak:eng", "us", "en-US");
 141     EXPECT_EQ(ASCIIToUTF16("CO"), util_.GetInputMethodShortName(desc));
 142   }
 143   {
 144     InputMethodDescriptor desc =
 145         GetDesc("xkb:us:altgr-intl:eng", "us", "en-US");
 146     EXPECT_EQ(ASCIIToUTF16("EXTD"), util_.GetInputMethodShortName(desc));
 147   }
 148   {
 149     InputMethodDescriptor desc = GetDesc("xkb:us:intl:eng", "us", "en-US");
 150     EXPECT_EQ(ASCIIToUTF16("INTL"), util_.GetInputMethodShortName(desc));
 151   }
 152   {
 153     InputMethodDescriptor desc = GetDesc("xkb:de:neo:ger", "de(neo)", "de");
 154     EXPECT_EQ(ASCIIToUTF16("NEO"), util_.GetInputMethodShortName(desc));
 155   }
 156   {
 157     InputMethodDescriptor desc = GetDesc("xkb:es:cat:cat", "es(cat)", "ca");
 158     EXPECT_EQ(ASCIIToUTF16("CAS"), util_.GetInputMethodShortName(desc));
 159   }
 160   {
 161     InputMethodDescriptor desc = GetDesc(pinyin_ime_id, "us", "zh-CN");
 162     EXPECT_EQ(base::UTF8ToUTF16("\xe6\x8b\xbc"),
 163               util_.GetInputMethodShortName(desc));
 164   }
 165   {
 166     InputMethodDescriptor desc = GetDesc(zhuyin_ime_id, "us", "zh-TW");
 167     EXPECT_EQ(base::UTF8ToUTF16("\xE6\xB3\xA8"),
 168               util_.GetInputMethodShortName(desc));
 169   }
 170 }
 171
 172 TEST_F(InputMethodUtilTest, GetInputMethodMediumNameTest) {
 173   {
 174     // input methods with medium name equal to short name
 175     const char * input_method_id[] = {
 176       "xkb:us:altgr-intl:eng",
 177       "xkb:us:dvorak:eng",
 178       "xkb:us:intl:eng",
 179       "xkb:us:colemak:eng",
 180       "english-m",
 181       "xkb:de:neo:ger",
 182       "xkb:es:cat:cat",
 183       "xkb:gb:dvorak:eng",
 184     };
 185     const int len = ARRAYSIZE_UNSAFE(input_method_id);
 186     for (int i=0; i<len; ++i) {
 187       InputMethodDescriptor desc = GetDesc(input_method_id[i], "", "");
 188       base::string16 medium_name = util_.GetInputMethodMediumName(desc);
 189       base::string16 short_name = util_.GetInputMethodShortName(desc);
 190       EXPECT_EQ(medium_name,short_name);
 191     }
 192   }
 193   {
 194     // input methods with medium name not equal to short name
 195     const char * input_method_id[] = {
 196       "m17n:zh:cangjie",
 197       "m17n:zh:quick",
 198       pinyin_ime_id,
 199       zhuyin_ime_id,
 200       "mozc-hangul",
 201       pinyin_ime_id,
 202       pinyin_ime_id,
 203     };
 204     const int len = ARRAYSIZE_UNSAFE(input_method_id);
 205     for (int i=0; i<len; ++i) {
 206       InputMethodDescriptor desc = GetDesc(input_method_id[i], "", "");
 207       base::string16 medium_name = util_.GetInputMethodMediumName(desc);
 208       base::string16 short_name = util_.GetInputMethodShortName(desc);
 209       EXPECT_NE(medium_name,short_name);
 210     }
 211   }
 212 }
 213
 214 TEST_F(InputMethodUtilTest, GetInputMethodLongNameTest) {
 215   // For most languages input method or keyboard layout name is returned.
 216   // See below for exceptions.
 217   {
 218     InputMethodDescriptor desc = GetDesc("m17n:fa:isiri", "us", "fa");
 219     EXPECT_EQ(ASCIIToUTF16("Persian input method (ISIRI 2901 layout)"),
 220               util_.GetInputMethodLongName(desc));
 221   }
 222   {
 223     InputMethodDescriptor desc = GetDesc("mozc-hangul", "us", "ko");
 224     EXPECT_EQ(ASCIIToUTF16("Korean input method"),
 225               util_.GetInputMethodLongName(desc));
 226   }
 227   {
 228     InputMethodDescriptor desc = GetDesc("m17n:vi:tcvn", "us", "vi");
 229     EXPECT_EQ(ASCIIToUTF16("Vietnamese input method (TCVN6064)"),
 230               util_.GetInputMethodLongName(desc));
 231   }
 232   {
 233     InputMethodDescriptor desc = GetDesc("xkb:jp::jpn", "jp", "ja");
 234     EXPECT_EQ(ASCIIToUTF16("Japanese keyboard"),
 235               util_.GetInputMethodLongName(desc));
 236   }
 237   {
 238     InputMethodDescriptor desc =
 239         GetDesc("xkb:us:dvorak:eng", "us(dvorak)", "en-US");
 240     EXPECT_EQ(ASCIIToUTF16("US Dvorak keyboard"),
 241               util_.GetInputMethodLongName(desc));
 242   }
 243   {
 244     InputMethodDescriptor desc =
 245         GetDesc("xkb:gb:dvorak:eng", "gb(dvorak)", "en-US");
 246     EXPECT_EQ(ASCIIToUTF16("UK Dvorak keyboard"),
 247               util_.GetInputMethodLongName(desc));
 248   }
 249
 250   // For Arabic, Dutch, French, German and Hindi,
 251   // "language - keyboard layout" pair is returned.
 252   {
 253     InputMethodDescriptor desc = GetDesc("m17n:ar:kbd", "us", "ar");
 254     EXPECT_EQ(ASCIIToUTF16("Arabic - Standard input method"),
 255               util_.GetInputMethodLongName(desc));
 256   }
 257   {
 258     InputMethodDescriptor desc = GetDesc("xkb:be::nld", "be", "nl");
 259     EXPECT_EQ(ASCIIToUTF16("Dutch - Belgian keyboard"),
 260               util_.GetInputMethodLongName(desc));
 261   }
 262   {
 263     InputMethodDescriptor desc = GetDesc("xkb:fr::fra", "fr", "fr");
 264     EXPECT_EQ(ASCIIToUTF16("French - French keyboard"),
 265               util_.GetInputMethodLongName(desc));
 266   }
 267   {
 268     InputMethodDescriptor desc = GetDesc("xkb:be::fra", "be", "fr");
 269     EXPECT_EQ(ASCIIToUTF16("French - Belgian keyboard"),
 270               util_.GetInputMethodLongName(desc));
 271   }
 272   {
 273     InputMethodDescriptor desc = GetDesc("xkb:de::ger", "de", "de");
 274     EXPECT_EQ(ASCIIToUTF16("German - German keyboard"),
 275               util_.GetInputMethodLongName(desc));
 276   }
 277   {
 278     InputMethodDescriptor desc = GetDesc("xkb:be::ger", "be", "de");
 279     EXPECT_EQ(ASCIIToUTF16("German - Belgian keyboard"),
 280               util_.GetInputMethodLongName(desc));
 281   }
 282   {
 283     InputMethodDescriptor desc = GetDesc("m17n:hi:itrans", "us", "hi");
 284     EXPECT_EQ(ASCIIToUTF16("Hindi - Standard input method"),
 285               util_.GetInputMethodLongName(desc));
 286   }
 287
 288   {
 289     InputMethodDescriptor desc = GetDesc("invalid-id", "us", "xx");
 290     // You can safely ignore the "Resouce ID is not found for: invalid-id"
 291     // error.
 292     EXPECT_EQ(ASCIIToUTF16("invalid-id"),
 293               util_.GetInputMethodLongName(desc));
 294   }
 295 }
 296
 297 TEST_F(InputMethodUtilTest, TestIsValidInputMethodId) {
 298   EXPECT_TRUE(util_.IsValidInputMethodId("xkb:us:colemak:eng"));
 299   EXPECT_TRUE(util_.IsValidInputMethodId(pinyin_ime_id));
 300   EXPECT_FALSE(util_.IsValidInputMethodId("unsupported-input-method"));
 301 }
 302
 303 TEST_F(InputMethodUtilTest, TestIsKeyboardLayout) {
 304   EXPECT_TRUE(InputMethodUtil::IsKeyboardLayout("xkb:us::eng"));
 305   EXPECT_FALSE(InputMethodUtil::IsKeyboardLayout(pinyin_ime_id));
 306 }
 307
 308 TEST_F(InputMethodUtilTest, TestGetKeyboardLayoutName) {
 309   // Unsupported case.
 310   EXPECT_EQ("", util_.GetKeyboardLayoutName("UNSUPPORTED_ID"));
 311
 312   // Supported cases (samples).
 313   EXPECT_EQ("us", util_.GetKeyboardLayoutName(pinyin_ime_id));
 314   EXPECT_EQ("es", util_.GetKeyboardLayoutName("xkb:es::spa"));
 315   EXPECT_EQ("es(cat)", util_.GetKeyboardLayoutName("xkb:es:cat:cat"));
 316   EXPECT_EQ("gb(extd)", util_.GetKeyboardLayoutName("xkb:gb:extd:eng"));
 317   EXPECT_EQ("us", util_.GetKeyboardLayoutName("xkb:us::eng"));
 318   EXPECT_EQ("us(dvorak)", util_.GetKeyboardLayoutName("xkb:us:dvorak:eng"));
 319   EXPECT_EQ("us(colemak)", util_.GetKeyboardLayoutName("xkb:us:colemak:eng"));
 320   EXPECT_EQ("de(neo)", util_.GetKeyboardLayoutName("xkb:de:neo:ger"));
 321 }
 322
 323 TEST_F(InputMethodUtilTest, TestGetLanguageCodeFromInputMethodId) {
 324   // Make sure that the -CN is added properly.
 325   EXPECT_EQ("zh-CN", util_.GetLanguageCodeFromInputMethodId(pinyin_ime_id));
 326 }
 327
 328 TEST_F(InputMethodUtilTest, TestGetInputMethodDisplayNameFromId) {
 329   EXPECT_EQ("US keyboard",
 330             util_.GetInputMethodDisplayNameFromId("xkb:us::eng"));
 331   EXPECT_EQ("", util_.GetInputMethodDisplayNameFromId("nonexistent"));
 332 }
 333
 334 TEST_F(InputMethodUtilTest, TestGetInputMethodDescriptorFromId) {
 335   EXPECT_EQ(NULL, util_.GetInputMethodDescriptorFromId("non_existent"));
 336
 337   const InputMethodDescriptor* descriptor =
 338       util_.GetInputMethodDescriptorFromId(pinyin_ime_id);
 339   ASSERT_TRUE(NULL != descriptor);  // ASSERT_NE doesn't compile.
 340   EXPECT_EQ(pinyin_ime_id, descriptor->id());
 341   EXPECT_EQ("us", descriptor->GetPreferredKeyboardLayout());
 342   // This used to be "zh" but now we have "zh-CN" in input_methods.h,
 343   // hence this should be zh-CN now.
 344   ASSERT_TRUE(!descriptor->language_codes().empty());
 345   EXPECT_EQ("zh-CN", descriptor->language_codes().at(0));
 346 }
 347
 348 TEST_F(InputMethodUtilTest, TestGetInputMethodIdsForLanguageCode) {
 349   std::multimap<std::string, std::string> language_code_to_ids_map;
 350   language_code_to_ids_map.insert(std::make_pair("ja", pinyin_ime_id));
 351   language_code_to_ids_map.insert(std::make_pair("ja", pinyin_ime_id));
 352   language_code_to_ids_map.insert(std::make_pair("ja", "xkb:jp:jpn"));
 353   language_code_to_ids_map.insert(std::make_pair("fr", "xkb:fr:fra"));
 354
 355   std::vector<std::string> result;
 356   EXPECT_TRUE(util_.GetInputMethodIdsFromLanguageCodeInternal(
 357       language_code_to_ids_map, "ja", kAllInputMethods, &result));
 358   EXPECT_EQ(3U, result.size());
 359   EXPECT_TRUE(util_.GetInputMethodIdsFromLanguageCodeInternal(
 360       language_code_to_ids_map, "ja", kKeyboardLayoutsOnly, &result));
 361   ASSERT_EQ(1U, result.size());
 362   EXPECT_EQ("xkb:jp:jpn", result[0]);
 363
 364   EXPECT_TRUE(util_.GetInputMethodIdsFromLanguageCodeInternal(
 365       language_code_to_ids_map, "fr", kAllInputMethods, &result));
 366   ASSERT_EQ(1U, result.size());
 367   EXPECT_EQ("xkb:fr:fra", result[0]);
 368   EXPECT_TRUE(util_.GetInputMethodIdsFromLanguageCodeInternal(
 369       language_code_to_ids_map, "fr", kKeyboardLayoutsOnly, &result));
 370   ASSERT_EQ(1U, result.size());
 371   EXPECT_EQ("xkb:fr:fra", result[0]);
 372
 373   EXPECT_FALSE(util_.GetInputMethodIdsFromLanguageCodeInternal(
 374       language_code_to_ids_map, "invalid_lang", kAllInputMethods, &result));
 375   EXPECT_FALSE(util_.GetInputMethodIdsFromLanguageCodeInternal(
 376       language_code_to_ids_map, "invalid_lang", kKeyboardLayoutsOnly, &result));
 377 }
 378
 379 // US keyboard + English US UI = US keyboard only.
 380 TEST_F(InputMethodUtilTest, TestGetFirstLoginInputMethodIds_Us_And_EnUs) {
 381   const InputMethodDescriptor* descriptor =
 382       util_.GetInputMethodDescriptorFromId("xkb:us::eng");  // US keyboard.
 383   ASSERT_TRUE(NULL != descriptor);  // ASSERT_NE doesn't compile.
 384   std::vector<std::string> input_method_ids;
 385   util_.GetFirstLoginInputMethodIds("en-US", *descriptor, &input_method_ids);
 386   ASSERT_EQ(1U, input_method_ids.size());
 387   EXPECT_EQ("xkb:us::eng", input_method_ids[0]);
 388 }
 389
 390 // US keyboard + Chinese UI = US keyboard + Pinyin IME.
 391 TEST_F(InputMethodUtilTest, TestGetFirstLoginInputMethodIds_Us_And_Zh) {
 392   const InputMethodDescriptor* descriptor =
 393       util_.GetInputMethodDescriptorFromId("xkb:us::eng");  // US keyboard.
 394   ASSERT_TRUE(NULL != descriptor);  // ASSERT_NE doesn't compile.
 395   std::vector<std::string> input_method_ids;
 396   util_.GetFirstLoginInputMethodIds("zh-CN", *descriptor, &input_method_ids);
 397   ASSERT_EQ(2U, input_method_ids.size());
 398   EXPECT_EQ("xkb:us::eng", input_method_ids[0]);
 399   EXPECT_EQ(pinyin_ime_id, input_method_ids[1]);  // Pinyin for US keybaord.
 400 }
 401
 402 // US keyboard + Russian UI = US keyboard + Russsian keyboard
 403 TEST_F(InputMethodUtilTest, TestGetFirstLoginInputMethodIds_Us_And_Ru) {
 404   const InputMethodDescriptor* descriptor =
 405       util_.GetInputMethodDescriptorFromId("xkb:us::eng");  // US keyboard.
 406   ASSERT_TRUE(NULL != descriptor);  // ASSERT_NE doesn't compile.
 407   std::vector<std::string> input_method_ids;
 408   util_.GetFirstLoginInputMethodIds("ru", *descriptor, &input_method_ids);
 409   ASSERT_EQ(2U, input_method_ids.size());
 410   EXPECT_EQ("xkb:us::eng", input_method_ids[0]);
 411   EXPECT_EQ("xkb:ru::rus", input_method_ids[1]);  // Russian keyboard.
 412 }
 413
 414 // US keyboard + Traditional Chinese = US keyboard + chewing.
 415 TEST_F(InputMethodUtilTest, TestGetFirstLoginInputMethodIds_Us_And_ZhTw) {
 416   const InputMethodDescriptor* descriptor =
 417       util_.GetInputMethodDescriptorFromId("xkb:us::eng");  // US keyboard.
 418   ASSERT_TRUE(NULL != descriptor);  // ASSERT_NE doesn't compile.
 419   std::vector<std::string> input_method_ids;
 420   util_.GetFirstLoginInputMethodIds("zh-TW", *descriptor, &input_method_ids);
 421   ASSERT_EQ(2U, input_method_ids.size());
 422   EXPECT_EQ("xkb:us::eng", input_method_ids[0]);
 423   EXPECT_EQ(zhuyin_ime_id, input_method_ids[1]);  // Chewing.
 424 }
 425
 426 // US keyboard + Thai = US keyboard + kesmanee.
 427 TEST_F(InputMethodUtilTest, TestGetFirstLoginInputMethodIds_Us_And_Th) {
 428   const InputMethodDescriptor* descriptor =
 429       util_.GetInputMethodDescriptorFromId("xkb:us::eng");  // US keyboard.
 430   ASSERT_TRUE(NULL != descriptor);  // ASSERT_NE doesn't compile.
 431   std::vector<std::string> input_method_ids;
 432   util_.GetFirstLoginInputMethodIds("th", *descriptor, &input_method_ids);
 433   ASSERT_EQ(2U, input_method_ids.size());
 434   EXPECT_EQ("xkb:us::eng", input_method_ids[0]);
 435   EXPECT_EQ("_comp_ime_jhffeifommiaekmbkkjlpmilogcfdohpvkd_th",
 436             input_method_ids[1]);  // Kesmanee.
 437 }
 438
 439 // US keyboard + Vietnamese = US keyboard + TCVN6064.
 440 TEST_F(InputMethodUtilTest, TestGetFirstLoginInputMethodIds_Us_And_Vi) {
 441   const InputMethodDescriptor* descriptor =
 442       util_.GetInputMethodDescriptorFromId("xkb:us::eng");  // US keyboard.
 443   ASSERT_TRUE(NULL != descriptor);  // ASSERT_NE doesn't compile.
 444   std::vector<std::string> input_method_ids;
 445   util_.GetFirstLoginInputMethodIds("vi", *descriptor, &input_method_ids);
 446   ASSERT_EQ(2U, input_method_ids.size());
 447   EXPECT_EQ("xkb:us::eng", input_method_ids[0]);
 448   EXPECT_EQ("_comp_ime_jhffeifommiaekmbkkjlpmilogcfdohpvkd_vi_tcvn",
 449             input_method_ids[1]);  // TCVN6064.
 450 }
 451
 452 TEST_F(InputMethodUtilTest, TestGetLanguageCodesFromInputMethodIds) {
 453   std::vector<std::string> input_method_ids;
 454   input_method_ids.push_back("xkb:us::eng");  // English US.
 455   input_method_ids.push_back("xkb:us:dvorak:eng");  // English US Dvorak.
 456   input_method_ids.push_back(pinyin_ime_id);  // Pinyin
 457   input_method_ids.push_back("xkb:fr::fra");  // French France.
 458   std::vector<std::string> language_codes;
 459   util_.GetLanguageCodesFromInputMethodIds(input_method_ids, &language_codes);
 460   ASSERT_EQ(3U, language_codes.size());
 461   EXPECT_EQ("en-US", language_codes[0]);
 462   EXPECT_EQ("zh-CN", language_codes[1]);
 463   EXPECT_EQ("fr", language_codes[2]);
 464 }
 465
 466 // Test all supported descriptors to detect a typo in ibus_input_methods.txt.
 467 TEST_F(InputMethodUtilTest, TestIBusInputMethodText) {
 468   for (size_t i = 0; i < util_.supported_input_methods_->size(); ++i) {
 469     const std::string language_code =
 470         util_.supported_input_methods_->at(i).language_codes().at(0);
 471     const base::string16 display_name =
 472         l10n_util::GetDisplayNameForLocale(language_code, "en", false);
 473     // Only two formats, like "fr" (lower case) and "en-US" (lower-upper), are
 474     // allowed. See the text file for details.
 475     EXPECT_TRUE(language_code.length() == 2 ||
 476                 (language_code.length() == 5 && language_code[2] == '-'))
 477         << "Invalid language code " << language_code;
 478     EXPECT_TRUE(l10n_util::IsValidLocaleSyntax(language_code))
 479         << "Invalid language code " << language_code;
 480     EXPECT_FALSE(display_name.empty())
 481         << "Invalid language code " << language_code;
 482     // On error, GetDisplayNameForLocale() returns the |language_code| as-is.
 483     EXPECT_NE(language_code, base::UTF16ToUTF8(display_name))
 484         << "Invalid language code " << language_code;
 485   }
 486 }
 487
 488 }  // namespace input_method
 489 }  // namespace chromeos