ui/base/l10n/l10n_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 "build/build_config.h"
   6
   7 #if defined(OS_POSIX) && !defined(OS_MACOSX)
   8 #include <cstdlib>
   9 #endif
  10
  11 #include "base/basictypes.h"
  12 #include "base/environment.h"
  13 #include "base/files/file_util.h"
  14 #include "base/i18n/case_conversion.h"
  15 #include "base/i18n/rtl.h"
  16 #include "base/path_service.h"
  17 #include "base/stl_util.h"
  18 #include "base/strings/string_util.h"
  19 #include "base/strings/utf_string_conversions.h"
  20 #include "base/test/scoped_path_override.h"
  21 #include "testing/gtest/include/gtest/gtest.h"
  22 #include "testing/platform_test.h"
  23 #include "third_party/icu/source/common/unicode/locid.h"
  24 #include "ui/base/l10n/l10n_util.h"
  25 #include "ui/base/l10n/l10n_util_collator.h"
  26 #include "ui/base/ui_base_paths.h"
  27
  28 #if defined(OS_WIN)
  29 #include "base/win/windows_version.h"
  30 #endif
  31
  32 #if !defined(OS_MACOSX)
  33 #include "ui/base/test/data/resource.h"
  34 #endif
  35
  36 using base::ASCIIToUTF16;
  37 using base::UTF8ToUTF16;
  38
  39 namespace {
  40
  41 class StringWrapper {
  42  public:
  43   explicit StringWrapper(const base::string16& string) : string_(string) {}
  44   const base::string16& string() const { return string_; }
  45
  46  private:
  47   base::string16 string_;
  48
  49   DISALLOW_COPY_AND_ASSIGN(StringWrapper);
  50 };
  51
  52 }  // namespace
  53
  54 class L10nUtilTest : public PlatformTest {
  55 };
  56
  57 #if defined(OS_WIN)
  58 // TODO(beng): disabled until app strings move to app.
  59 TEST_F(L10nUtilTest, DISABLED_GetString) {
  60   std::string s = l10n_util::GetStringUTF8(IDS_SIMPLE);
  61   EXPECT_EQ(std::string("Hello World!"), s);
  62
  63   s = l10n_util::GetStringFUTF8(IDS_PLACEHOLDERS,
  64                                 UTF8ToUTF16("chrome"),
  65                                 UTF8ToUTF16("10"));
  66   EXPECT_EQ(std::string("Hello, chrome. Your number is 10."), s);
  67
  68   base::string16 s16 = l10n_util::GetStringFUTF16Int(IDS_PLACEHOLDERS_2, 20);
  69   EXPECT_EQ(UTF8ToUTF16("You owe me $20."), s16);
  70 }
  71 #endif  // defined(OS_WIN)
  72
  73 #if !defined(OS_MACOSX) && !defined(OS_ANDROID)
  74 // On Mac, we are disabling this test because GetApplicationLocale() as an
  75 // API isn't something that we'll easily be able to unit test in this manner.
  76 // The meaning of that API, on the Mac, is "the locale used by Cocoa's main
  77 // nib file", which clearly can't be stubbed by a test app that doesn't use
  78 // Cocoa.
  79
  80 // On Android, we are disabling this test since GetApplicationLocale() just
  81 // returns the system's locale, which, similarly, is not easily unit tested.
  82
  83 #if defined(OS_POSIX) && defined(USE_GLIB) && !defined(OS_CHROMEOS)
  84 const bool kPlatformHasDefaultLocale = 1;
  85 const bool kUseLocaleFromEnvironment = 1;
  86 const bool kSupportsLocalePreference = 0;
  87 #elif defined(OS_WIN)
  88 const bool kPlatformHasDefaultLocale = 1;
  89 const bool kUseLocaleFromEnvironment = 0;
  90 const bool kSupportsLocalePreference = 1;
  91 #else
  92 const bool kPlatformHasDefaultLocale = 0;
  93 const bool kUseLocaleFromEnvironment = 0;
  94 const bool kSupportsLocalePreference = 1;
  95 #endif
  96
  97 void SetDefaultLocaleForTest(const std::string& tag, base::Environment* env) {
  98   if (kUseLocaleFromEnvironment)
  99     env->SetVar("LANGUAGE", tag);
 100   else
 101     base::i18n::SetICUDefaultLocale(tag);
 102 }
 103
 104 TEST_F(L10nUtilTest, GetAppLocale) {
 105   scoped_ptr<base::Environment> env;
 106   // Use a temporary locale dir so we don't have to actually build the locale
 107   // pak files for this test.
 108   base::ScopedPathOverride locale_dir_override(ui::DIR_LOCALES);
 109   base::FilePath new_locale_dir;
 110   ASSERT_TRUE(PathService::Get(ui::DIR_LOCALES, &new_locale_dir));
 111   // Make fake locale files.
 112   std::string filenames[] = {
 113     "en-US",
 114     "en-GB",
 115     "fr",
 116     "es-419",
 117     "es",
 118     "zh-TW",
 119     "zh-CN",
 120     "he",
 121     "fil",
 122     "nb",
 123     "am",
 124     "ca",
 125     "ca@valencia",
 126   };
 127
 128   for (size_t i = 0; i < arraysize(filenames); ++i) {
 129     base::FilePath filename = new_locale_dir.AppendASCII(
 130         filenames[i] + ".pak");
 131     base::WriteFile(filename, "", 0);
 132   }
 133
 134   // Keep a copy of ICU's default locale before we overwrite it.
 135   const std::string original_locale = base::i18n::GetConfiguredLocale();
 136
 137   if (kPlatformHasDefaultLocale && kUseLocaleFromEnvironment) {
 138     env.reset(base::Environment::Create());
 139
 140     // Test the support of LANGUAGE environment variable.
 141     base::i18n::SetICUDefaultLocale("en-US");
 142     env->SetVar("LANGUAGE", "xx:fr_CA");
 143     EXPECT_EQ("fr", l10n_util::GetApplicationLocale(std::string()));
 144     EXPECT_STREQ("fr", icu::Locale::getDefault().getLanguage());
 145
 146     env->SetVar("LANGUAGE", "xx:yy:en_gb.utf-8@quot");
 147     EXPECT_EQ("en-GB", l10n_util::GetApplicationLocale(std::string()));
 148     EXPECT_STREQ("en", icu::Locale::getDefault().getLanguage());
 149
 150     env->SetVar("LANGUAGE", "xx:zh-hk");
 151     EXPECT_EQ("zh-TW", l10n_util::GetApplicationLocale(std::string()));
 152     EXPECT_STREQ("zh", icu::Locale::getDefault().getLanguage());
 153
 154     // We emulate gettext's behavior here, which ignores LANG/LC_MESSAGES/LC_ALL
 155     // when LANGUAGE is specified. If no language specified in LANGUAGE is
 156     // valid,
 157     // then just fallback to the default language, which is en-US for us.
 158     base::i18n::SetICUDefaultLocale("fr-FR");
 159     env->SetVar("LANGUAGE", "xx:yy");
 160     EXPECT_EQ("en-US", l10n_util::GetApplicationLocale(std::string()));
 161     EXPECT_STREQ("en", icu::Locale::getDefault().getLanguage());
 162
 163     env->SetVar("LANGUAGE", "/fr:zh_CN");
 164     EXPECT_EQ("zh-CN", l10n_util::GetApplicationLocale(std::string()));
 165     EXPECT_STREQ("zh", icu::Locale::getDefault().getLanguage());
 166
 167     // Test prioritization of the different environment variables.
 168     env->SetVar("LANGUAGE", "fr");
 169     env->SetVar("LC_ALL", "es");
 170     env->SetVar("LC_MESSAGES", "he");
 171     env->SetVar("LANG", "nb");
 172     EXPECT_EQ("fr", l10n_util::GetApplicationLocale(std::string()));
 173     EXPECT_STREQ("fr", icu::Locale::getDefault().getLanguage());
 174     env->UnSetVar("LANGUAGE");
 175     EXPECT_EQ("es", l10n_util::GetApplicationLocale(std::string()));
 176     EXPECT_STREQ("es", icu::Locale::getDefault().getLanguage());
 177     env->UnSetVar("LC_ALL");
 178     EXPECT_EQ("he", l10n_util::GetApplicationLocale(std::string()));
 179     EXPECT_STREQ("he", icu::Locale::getDefault().getLanguage());
 180     env->UnSetVar("LC_MESSAGES");
 181     EXPECT_EQ("nb", l10n_util::GetApplicationLocale(std::string()));
 182     EXPECT_STREQ("nb", icu::Locale::getDefault().getLanguage());
 183     env->UnSetVar("LANG");
 184
 185     SetDefaultLocaleForTest("ca", env.get());
 186     EXPECT_EQ("ca", l10n_util::GetApplicationLocale(std::string()));
 187     EXPECT_STREQ("ca", icu::Locale::getDefault().getLanguage());
 188
 189     SetDefaultLocaleForTest("ca-ES", env.get());
 190     EXPECT_EQ("ca", l10n_util::GetApplicationLocale(std::string()));
 191     EXPECT_STREQ("ca", icu::Locale::getDefault().getLanguage());
 192
 193     SetDefaultLocaleForTest("ca@valencia", env.get());
 194     EXPECT_EQ("ca@valencia", l10n_util::GetApplicationLocale(std::string()));
 195     EXPECT_STREQ("ca", icu::Locale::getDefault().getLanguage());
 196
 197     SetDefaultLocaleForTest("ca_ES@valencia", env.get());
 198     EXPECT_EQ("ca@valencia", l10n_util::GetApplicationLocale(std::string()));
 199     EXPECT_STREQ("ca", icu::Locale::getDefault().getLanguage());
 200
 201     SetDefaultLocaleForTest("ca_ES.UTF8@valencia", env.get());
 202     EXPECT_EQ("ca@valencia", l10n_util::GetApplicationLocale(std::string()));
 203     EXPECT_STREQ("ca", icu::Locale::getDefault().getLanguage());
 204   }
 205
 206   SetDefaultLocaleForTest("en-US", env.get());
 207   EXPECT_EQ("en-US", l10n_util::GetApplicationLocale(std::string()));
 208   EXPECT_STREQ("en", icu::Locale::getDefault().getLanguage());
 209
 210   SetDefaultLocaleForTest("xx", env.get());
 211   EXPECT_EQ("en-US", l10n_util::GetApplicationLocale(std::string()));
 212   EXPECT_STREQ("en", icu::Locale::getDefault().getLanguage());
 213
 214   if (!kPlatformHasDefaultLocale) {
 215     // ChromeOS & embedded use only browser prefs in GetApplicationLocale(),
 216     // ignoring the environment, and default to en-US. Other platforms honor
 217     // the default locale from the OS or environment.
 218     SetDefaultLocaleForTest("en-GB", env.get());
 219     EXPECT_EQ("en-US", l10n_util::GetApplicationLocale(""));
 220     EXPECT_STREQ("en", icu::Locale::getDefault().getLanguage());
 221
 222     SetDefaultLocaleForTest("en-US", env.get());
 223     EXPECT_EQ("en-GB", l10n_util::GetApplicationLocale("en-GB"));
 224     EXPECT_STREQ("en", icu::Locale::getDefault().getLanguage());
 225
 226     SetDefaultLocaleForTest("en-US", env.get());
 227     EXPECT_EQ("en-GB", l10n_util::GetApplicationLocale("en-AU"));
 228     EXPECT_STREQ("en", icu::Locale::getDefault().getLanguage());
 229
 230     SetDefaultLocaleForTest("en-US", env.get());
 231     EXPECT_EQ("en-GB", l10n_util::GetApplicationLocale("en-NZ"));
 232     EXPECT_STREQ("en", icu::Locale::getDefault().getLanguage());
 233
 234     SetDefaultLocaleForTest("en-US", env.get());
 235     EXPECT_EQ("en-GB", l10n_util::GetApplicationLocale("en-CA"));
 236     EXPECT_STREQ("en", icu::Locale::getDefault().getLanguage());
 237
 238     SetDefaultLocaleForTest("en-US", env.get());
 239     EXPECT_EQ("en-GB", l10n_util::GetApplicationLocale("en-ZA"));
 240     EXPECT_STREQ("en", icu::Locale::getDefault().getLanguage());
 241   } else {
 242     // Most platforms have an OS-provided locale. This locale is preferred.
 243     SetDefaultLocaleForTest("en-GB", env.get());
 244     EXPECT_EQ("en-GB", l10n_util::GetApplicationLocale(std::string()));
 245     EXPECT_STREQ("en", icu::Locale::getDefault().getLanguage());
 246
 247     SetDefaultLocaleForTest("fr-CA", env.get());
 248     EXPECT_EQ("fr", l10n_util::GetApplicationLocale(std::string()));
 249     EXPECT_STREQ("fr", icu::Locale::getDefault().getLanguage());
 250
 251     SetDefaultLocaleForTest("es-MX", env.get());
 252     EXPECT_EQ("es-419", l10n_util::GetApplicationLocale(std::string()));
 253     EXPECT_STREQ("es", icu::Locale::getDefault().getLanguage());
 254
 255     SetDefaultLocaleForTest("es-AR", env.get());
 256     EXPECT_EQ("es-419", l10n_util::GetApplicationLocale(std::string()));
 257     EXPECT_STREQ("es", icu::Locale::getDefault().getLanguage());
 258
 259     SetDefaultLocaleForTest("es-ES", env.get());
 260     EXPECT_EQ("es", l10n_util::GetApplicationLocale(std::string()));
 261     EXPECT_STREQ("es", icu::Locale::getDefault().getLanguage());
 262
 263     SetDefaultLocaleForTest("es", env.get());
 264     EXPECT_EQ("es", l10n_util::GetApplicationLocale(std::string()));
 265     EXPECT_STREQ("es", icu::Locale::getDefault().getLanguage());
 266
 267     SetDefaultLocaleForTest("zh-HK", env.get());
 268     EXPECT_EQ("zh-TW", l10n_util::GetApplicationLocale(std::string()));
 269     EXPECT_STREQ("zh", icu::Locale::getDefault().getLanguage());
 270
 271     SetDefaultLocaleForTest("zh-MO", env.get());
 272     EXPECT_EQ("zh-TW", l10n_util::GetApplicationLocale(std::string()));
 273     EXPECT_STREQ("zh", icu::Locale::getDefault().getLanguage());
 274
 275     SetDefaultLocaleForTest("zh-SG", env.get());
 276     EXPECT_EQ("zh-CN", l10n_util::GetApplicationLocale(std::string()));
 277     EXPECT_STREQ("zh", icu::Locale::getDefault().getLanguage());
 278
 279     SetDefaultLocaleForTest("en-CA", env.get());
 280     EXPECT_EQ("en-GB", l10n_util::GetApplicationLocale(std::string()));
 281     EXPECT_STREQ("en", icu::Locale::getDefault().getLanguage());
 282
 283     SetDefaultLocaleForTest("en-AU", env.get());
 284     EXPECT_EQ("en-GB", l10n_util::GetApplicationLocale(std::string()));
 285     EXPECT_STREQ("en", icu::Locale::getDefault().getLanguage());
 286
 287     SetDefaultLocaleForTest("en-NZ", env.get());
 288     EXPECT_EQ("en-GB", l10n_util::GetApplicationLocale(std::string()));
 289     EXPECT_STREQ("en", icu::Locale::getDefault().getLanguage());
 290
 291     SetDefaultLocaleForTest("en-ZA", env.get());
 292     EXPECT_EQ("en-GB", l10n_util::GetApplicationLocale(std::string()));
 293     EXPECT_STREQ("en", icu::Locale::getDefault().getLanguage());
 294   }
 295
 296   SetDefaultLocaleForTest("en-US", env.get());
 297
 298   if (kSupportsLocalePreference) {
 299     // On windows, the user can override the locale in preferences.
 300     base::i18n::SetICUDefaultLocale("en-US");
 301     EXPECT_EQ("fr", l10n_util::GetApplicationLocale("fr"));
 302     EXPECT_STREQ("fr", icu::Locale::getDefault().getLanguage());
 303     EXPECT_EQ("fr", l10n_util::GetApplicationLocale("fr-CA"));
 304     EXPECT_STREQ("fr", icu::Locale::getDefault().getLanguage());
 305
 306     base::i18n::SetICUDefaultLocale("en-US");
 307     // Aliases iw, no, tl to he, nb, fil.
 308     EXPECT_EQ("he", l10n_util::GetApplicationLocale("iw"));
 309     EXPECT_STREQ("he", icu::Locale::getDefault().getLanguage());
 310     EXPECT_EQ("nb", l10n_util::GetApplicationLocale("no"));
 311     EXPECT_STREQ("nb", icu::Locale::getDefault().getLanguage());
 312     EXPECT_EQ("fil", l10n_util::GetApplicationLocale("tl"));
 313     EXPECT_STREQ("fil", icu::Locale::getDefault().getLanguage());
 314     // es-419 and es-XX (where XX is not Spain) should be
 315     // mapped to es-419 (Latin American Spanish).
 316     EXPECT_EQ("es-419", l10n_util::GetApplicationLocale("es-419"));
 317     EXPECT_STREQ("es", icu::Locale::getDefault().getLanguage());
 318     EXPECT_EQ("es", l10n_util::GetApplicationLocale("es-ES"));
 319     EXPECT_STREQ("es", icu::Locale::getDefault().getLanguage());
 320     EXPECT_EQ("es-419", l10n_util::GetApplicationLocale("es-AR"));
 321     EXPECT_STREQ("es", icu::Locale::getDefault().getLanguage());
 322
 323     base::i18n::SetICUDefaultLocale("es-AR");
 324     EXPECT_EQ("es", l10n_util::GetApplicationLocale("es"));
 325     EXPECT_STREQ("es", icu::Locale::getDefault().getLanguage());
 326
 327     base::i18n::SetICUDefaultLocale("zh-HK");
 328     EXPECT_EQ("zh-CN", l10n_util::GetApplicationLocale("zh-CN"));
 329     EXPECT_STREQ("zh", icu::Locale::getDefault().getLanguage());
 330
 331     base::i18n::SetICUDefaultLocale("he");
 332     EXPECT_EQ("en-US", l10n_util::GetApplicationLocale("en"));
 333     EXPECT_STREQ("en", icu::Locale::getDefault().getLanguage());
 334
 335     base::i18n::SetICUDefaultLocale("he");
 336     EXPECT_EQ("en-US", l10n_util::GetApplicationLocale("en", false));
 337     EXPECT_STREQ("he", icu::Locale::getDefault().getLanguage());
 338
 339     base::i18n::SetICUDefaultLocale("de");
 340     EXPECT_EQ("en-US", l10n_util::GetApplicationLocale("xx", false));
 341     EXPECT_STREQ("de", icu::Locale::getDefault().getLanguage());
 342
 343     base::i18n::SetICUDefaultLocale("de");
 344     EXPECT_EQ("fr", l10n_util::GetApplicationLocale("fr", false));
 345     EXPECT_STREQ("de", icu::Locale::getDefault().getLanguage());
 346
 347     base::i18n::SetICUDefaultLocale("de");
 348     EXPECT_EQ("en-US", l10n_util::GetApplicationLocale("en", false));
 349     EXPECT_STREQ("de", icu::Locale::getDefault().getLanguage());
 350
 351     base::i18n::SetICUDefaultLocale("de");
 352     EXPECT_EQ("en-US", l10n_util::GetApplicationLocale("en-US", true));
 353     EXPECT_STREQ("en", icu::Locale::getDefault().getLanguage());
 354   } else {
 355     base::i18n::SetICUDefaultLocale("de");
 356     EXPECT_EQ("en-US", l10n_util::GetApplicationLocale(std::string(), false));
 357     EXPECT_STREQ("de", icu::Locale::getDefault().getLanguage());
 358
 359     base::i18n::SetICUDefaultLocale("de");
 360     EXPECT_EQ("en-US", l10n_util::GetApplicationLocale(std::string(), true));
 361     EXPECT_STREQ("en", icu::Locale::getDefault().getLanguage());
 362   }
 363
 364 #if defined(OS_WIN)
 365   // Amharic should be blocked unless OS is Vista or newer.
 366   if (base::win::GetVersion() < base::win::VERSION_VISTA) {
 367     base::i18n::SetICUDefaultLocale("am");
 368     EXPECT_EQ("en-US", l10n_util::GetApplicationLocale(""));
 369     EXPECT_STREQ("en", icu::Locale::getDefault().getLanguage());
 370     base::i18n::SetICUDefaultLocale("en-GB");
 371     EXPECT_EQ("en-GB", l10n_util::GetApplicationLocale("am"));
 372     EXPECT_STREQ("en", icu::Locale::getDefault().getLanguage());
 373   } else {
 374     base::i18n::SetICUDefaultLocale("am");
 375     EXPECT_EQ("am", l10n_util::GetApplicationLocale(""));
 376     EXPECT_STREQ("am", icu::Locale::getDefault().getLanguage());
 377     base::i18n::SetICUDefaultLocale("en-GB");
 378     EXPECT_EQ("am", l10n_util::GetApplicationLocale("am"));
 379     EXPECT_STREQ("am", icu::Locale::getDefault().getLanguage());
 380   }
 381 #endif  // defined(OS_WIN)
 382
 383   // Clean up.
 384   base::i18n::SetICUDefaultLocale(original_locale);
 385 }
 386 #endif  // !defined(OS_MACOSX)
 387
 388 TEST_F(L10nUtilTest, SortStringsUsingFunction) {
 389   std::vector<StringWrapper*> strings;
 390   strings.push_back(new StringWrapper(UTF8ToUTF16("C")));
 391   strings.push_back(new StringWrapper(UTF8ToUTF16("d")));
 392   strings.push_back(new StringWrapper(UTF8ToUTF16("b")));
 393   strings.push_back(new StringWrapper(UTF8ToUTF16("a")));
 394   l10n_util::SortStringsUsingMethod("en-US",
 395                                     &strings,
 396                                     &StringWrapper::string);
 397   ASSERT_TRUE(UTF8ToUTF16("a") == strings[0]->string());
 398   ASSERT_TRUE(UTF8ToUTF16("b") == strings[1]->string());
 399   ASSERT_TRUE(UTF8ToUTF16("C") == strings[2]->string());
 400   ASSERT_TRUE(UTF8ToUTF16("d") == strings[3]->string());
 401   STLDeleteElements(&strings);
 402 }
 403
 404 /**
 405  * Helper method for validating strings that require direcitonal markup.
 406  * Checks that parentheses are enclosed in appropriate direcitonal markers.
 407  */
 408 void CheckUiDisplayNameForLocale(const std::string& locale,
 409                                  const std::string& display_locale,
 410                                  bool is_rtl) {
 411   EXPECT_EQ(true, base::i18n::IsRTL());
 412   base::string16 result = l10n_util::GetDisplayNameForLocale(locale,
 413                                                        display_locale,
 414                                                        /* is_for_ui */ true);
 415
 416   bool rtl_direction = true;
 417   for (size_t i = 0; i < result.length() - 1; i++) {
 418     base::char16 ch = result.at(i);
 419     switch (ch) {
 420     case base::i18n::kLeftToRightMark:
 421     case base::i18n::kLeftToRightEmbeddingMark:
 422       rtl_direction = false;
 423       break;
 424     case base::i18n::kRightToLeftMark:
 425     case base::i18n::kRightToLeftEmbeddingMark:
 426       rtl_direction = true;
 427       break;
 428     case '(':
 429     case ')':
 430       EXPECT_EQ(is_rtl, rtl_direction);
 431     }
 432   }
 433 }
 434
 435 TEST_F(L10nUtilTest, GetDisplayNameForLocale) {
 436   // TODO(jungshik): Make this test more extensive.
 437   // Test zh-CN and zh-TW are treated as zh-Hans and zh-Hant.
 438   base::string16 result =
 439       l10n_util::GetDisplayNameForLocale("zh-CN", "en", false);
 440   EXPECT_EQ(ASCIIToUTF16("Chinese (Simplified)"), result);
 441
 442   result = l10n_util::GetDisplayNameForLocale("zh-TW", "en", false);
 443   EXPECT_EQ(ASCIIToUTF16("Chinese (Traditional)"), result);
 444
 445   // tl and fil are not identical to be strict, but we treat them as
 446   // synonyms.
 447   result = l10n_util::GetDisplayNameForLocale("tl", "en", false);
 448   EXPECT_EQ(l10n_util::GetDisplayNameForLocale("fil", "en", false), result);
 449
 450   result = l10n_util::GetDisplayNameForLocale("pt-BR", "en", false);
 451   EXPECT_EQ(ASCIIToUTF16("Portuguese (Brazil)"), result);
 452
 453   result = l10n_util::GetDisplayNameForLocale("es-419", "en", false);
 454   EXPECT_EQ(ASCIIToUTF16("Spanish (Latin America)"), result);
 455
 456   result = l10n_util::GetDisplayNameForLocale("mo", "en", false);
 457   EXPECT_EQ(l10n_util::GetDisplayNameForLocale("ro-MD", "en", false), result);
 458
 459   result = l10n_util::GetDisplayNameForLocale("-BR", "en", false);
 460   EXPECT_EQ(ASCIIToUTF16("Brazil"), result);
 461
 462   result = l10n_util::GetDisplayNameForLocale("xyz-xyz", "en", false);
 463   EXPECT_EQ(ASCIIToUTF16("xyz (XYZ)"), result);
 464
 465   // Make sure that en-GB locale has the corect display names.
 466   result = l10n_util::GetDisplayNameForLocale("en", "en-GB", false);
 467   EXPECT_EQ(ASCIIToUTF16("English"), result);
 468   result = l10n_util::GetDisplayNameForLocale("es-419", "en-GB", false);
 469   EXPECT_EQ(ASCIIToUTF16("Spanish (Latin America)"), result);
 470
 471   // Check for directional markers when using RTL languages to ensure that
 472   // direction neutral characters such as parentheses are properly formatted.
 473
 474   // Keep a copy of ICU's default locale before we overwrite it.
 475   const std::string original_locale = base::i18n::GetConfiguredLocale();
 476
 477   base::i18n::SetICUDefaultLocale("he");
 478   CheckUiDisplayNameForLocale("en-US", "en", false);
 479   CheckUiDisplayNameForLocale("en-US", "he", true);
 480
 481   // Clean up.
 482   base::i18n::SetICUDefaultLocale(original_locale);
 483
 484   // ToUpper and ToLower should work with embedded NULLs.
 485   const size_t length_with_null = 4;
 486   base::char16 buf_with_null[length_with_null] = { 0, 'a', 0, 'b' };
 487   base::string16 string16_with_null(buf_with_null, length_with_null);
 488
 489   base::string16 upper_with_null = base::i18n::ToUpper(string16_with_null);
 490   ASSERT_EQ(length_with_null, upper_with_null.size());
 491   EXPECT_TRUE(upper_with_null[0] == 0 && upper_with_null[1] == 'A' &&
 492               upper_with_null[2] == 0 && upper_with_null[3] == 'B');
 493
 494   base::string16 lower_with_null = base::i18n::ToLower(upper_with_null);
 495   ASSERT_EQ(length_with_null, upper_with_null.size());
 496   EXPECT_TRUE(lower_with_null[0] == 0 && lower_with_null[1] == 'a' &&
 497               lower_with_null[2] == 0 && lower_with_null[3] == 'b');
 498 }
 499
 500 TEST_F(L10nUtilTest, GetDisplayNameForCountry) {
 501   base::string16 result = l10n_util::GetDisplayNameForCountry("BR", "en");
 502   EXPECT_EQ(ASCIIToUTF16("Brazil"), result);
 503
 504   result = l10n_util::GetDisplayNameForCountry("419", "en");
 505   EXPECT_EQ(ASCIIToUTF16("Latin America"), result);
 506
 507   result = l10n_util::GetDisplayNameForCountry("xyz", "en");
 508   EXPECT_EQ(ASCIIToUTF16("XYZ"), result);
 509 }
 510
 511 TEST_F(L10nUtilTest, GetParentLocales) {
 512   std::vector<std::string> locales;
 513   const std::string top_locale("sr_Cyrl_RS");
 514   l10n_util::GetParentLocales(top_locale, &locales);
 515
 516   ASSERT_EQ(3U, locales.size());
 517   EXPECT_EQ("sr_Cyrl_RS", locales[0]);
 518   EXPECT_EQ("sr_Cyrl", locales[1]);
 519   EXPECT_EQ("sr", locales[2]);
 520 }
 521
 522 TEST_F(L10nUtilTest, IsValidLocaleSyntax) {
 523   // Test valid locales.
 524   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("en"));
 525   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("fr"));
 526   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("de"));
 527   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("pt"));
 528   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("zh"));
 529   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("fil"));
 530   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("haw"));
 531   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("en-US"));
 532   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("en_US"));
 533   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("en_GB"));
 534   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("pt-BR"));
 535   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("zh_CN"));
 536   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("zh_Hans"));
 537   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("zh_Hans_CN"));
 538   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("zh_Hant"));
 539   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("zh_Hant_TW"));
 540   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("fr_CA"));
 541   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("i-klingon"));
 542   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("es-419"));
 543   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("en_IE_PREEURO"));
 544   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("en_IE_u_cu_IEP"));
 545   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("en_IE@currency=IEP"));
 546   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("fr@x=y"));
 547   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax("zn_CN@foo=bar"));
 548   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax(
 549       "fr@collation=phonebook;calendar=islamic-civil"));
 550   EXPECT_TRUE(l10n_util::IsValidLocaleSyntax(
 551       "sr_Latn_RS_REVISED@currency=USD"));
 552
 553   // Test invalid locales.
 554   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax(std::string()));
 555   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax("x"));
 556   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax("12"));
 557   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax("456"));
 558   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax("a1"));
 559   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax("enUS"));
 560   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax("zhcn"));
 561   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax("en.US"));
 562   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax("en#US"));
 563   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax("-en-US"));
 564   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax("en-US-"));
 565   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax("123-en-US"));
 566   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax("Latin"));
 567   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax("German"));
 568   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax("pt--BR"));
 569   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax("sl-macedonia"));
 570   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax("@"));
 571   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax("en-US@"));
 572   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax("en-US@x"));
 573   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax("en-US@x="));
 574   EXPECT_FALSE(l10n_util::IsValidLocaleSyntax("en-US@=y"));
 575 }