Translate: introduce unittest for TranslateHelper

chrome/renderer/translate_helper_unittest.cc

+// Copyright (c) 2013 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 "chrome/renderer/translate_helper.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+typedef testing::Test TranslateHelperTest;
+
+// Tests that synonym language code is converted to one used in supporting list.
+TEST_F(TranslateHelperTest, LanguageCodeSynonyms) {
+  std::string language;
+
+  language = std::string("nb");
+  TranslateHelper::ConvertLanguageCodeSynonym(&language);
+  EXPECT_EQ("no", language);
+
+  language = std::string("he");
+  TranslateHelper::ConvertLanguageCodeSynonym(&language);
+  EXPECT_EQ("iw", language);
+
+  language = std::string("jv");
+  TranslateHelper::ConvertLanguageCodeSynonym(&language);
+  EXPECT_EQ("jw", language);
+
+  language = std::string("fil");
+  TranslateHelper::ConvertLanguageCodeSynonym(&language);
+  EXPECT_EQ("tl", language);
+}