Add utility function to determine if a locale is valid syntax; this will...

chrome/common/extensions/extension_l10n_util_unittest.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "app/l10n_util.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/linked_ptr.h"
 #include "base/path_service.h"
 #include "base/scoped_ptr.h"
@@ skipping 207 matching lines @@
   std::vector<std::string> locales;
   const std::string top_locale("sr_Cyrl_RS");
   extension_l10n_util::GetParentLocales(top_locale, &locales);
 
   ASSERT_EQ(3U, locales.size());
   EXPECT_EQ("sr_Cyrl_RS", locales[0]);
   EXPECT_EQ("sr_Cyrl", locales[1]);
   EXPECT_EQ("sr", locales[2]);
 }
 
+TEST(ExtensionL10nUtil, IsValidLocaleSyntax) {
+  // Test valid locales.
+  EXPECT_EQ(true, extension_l10n_util::IsValidLocaleSyntax("en"));
+  EXPECT_EQ(true, extension_l10n_util::IsValidLocaleSyntax("fr"));
+  EXPECT_EQ(true, extension_l10n_util::IsValidLocaleSyntax("de"));
+  EXPECT_EQ(true, extension_l10n_util::IsValidLocaleSyntax("pt"));
+  EXPECT_EQ(true, extension_l10n_util::IsValidLocaleSyntax("zh"));
+  EXPECT_EQ(true, extension_l10n_util::IsValidLocaleSyntax("fil"));
+  EXPECT_EQ(true, extension_l10n_util::IsValidLocaleSyntax("haw"));
+  EXPECT_EQ(true, extension_l10n_util::IsValidLocaleSyntax("en-US"));
+  EXPECT_EQ(true, extension_l10n_util::IsValidLocaleSyntax("en_US"));
+  EXPECT_EQ(true, extension_l10n_util::IsValidLocaleSyntax("en_GB"));
+  EXPECT_EQ(true, extension_l10n_util::IsValidLocaleSyntax("pt-BR"));
+  EXPECT_EQ(true, extension_l10n_util::IsValidLocaleSyntax("zh_Hans"));
+  EXPECT_EQ(true, extension_l10n_util::IsValidLocaleSyntax("zh_Hans_CN"));
+  EXPECT_EQ(true, extension_l10n_util::IsValidLocaleSyntax("zh_Hant"));
+  EXPECT_EQ(true, extension_l10n_util::IsValidLocaleSyntax("zh_Hant_TW"));
+  EXPECT_EQ(true, extension_l10n_util::IsValidLocaleSyntax("fr_CA"));
+  EXPECT_EQ(true, extension_l10n_util::IsValidLocaleSyntax("i-klingon"));
+  EXPECT_EQ(true, extension_l10n_util::IsValidLocaleSyntax("es-021"));
+
+  // Test invalid locales.
+  EXPECT_EQ(false, extension_l10n_util::IsValidLocaleSyntax(""));
+  EXPECT_EQ(false, extension_l10n_util::IsValidLocaleSyntax("x"));
+  EXPECT_EQ(false, extension_l10n_util::IsValidLocaleSyntax("enUS"));
+  EXPECT_EQ(false, extension_l10n_util::IsValidLocaleSyntax("zhcn"));
+  EXPECT_EQ(false, extension_l10n_util::IsValidLocaleSyntax("en.US"));
+  EXPECT_EQ(false, extension_l10n_util::IsValidLocaleSyntax("en#US"));
+  EXPECT_EQ(false, extension_l10n_util::IsValidLocaleSyntax("-en-US"));
+  EXPECT_EQ(false, extension_l10n_util::IsValidLocaleSyntax("en-US-"));
+  EXPECT_EQ(false, extension_l10n_util::IsValidLocaleSyntax("Latin"));
+  EXPECT_EQ(false, extension_l10n_util::IsValidLocaleSyntax("German"));
+  EXPECT_EQ(false, extension_l10n_util::IsValidLocaleSyntax("pt--BR"));
+  EXPECT_EQ(false, extension_l10n_util::IsValidLocaleSyntax("sl-macedonia"));
+}
+
 // Caller owns the returned object.
 ExtensionMessageBundle* CreateManifestBundle() {
   linked_ptr<DictionaryValue> catalog(new DictionaryValue);
 
   DictionaryValue* name_tree = new DictionaryValue();
   name_tree->SetString("message", "name");
   catalog->Set("name", name_tree);
 
   DictionaryValue* description_tree = new DictionaryValue();
   description_tree->SetString("message", "description");
@@ skipping 191 matching lines @@
   DictionaryValue manifest;
   manifest.SetString(keys::kDefaultLocale, "en_US");
   manifest.SetString(keys::kCurrentLocale, "sr");
 
   ExtensionInfo info(&manifest, "", FilePath(), Extension::LOAD);
 
   EXPECT_TRUE(extension_l10n_util::ShouldRelocalizeManifest(info));
 }
 
 }  // namespace