// 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/translate_helper.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/common/chrome_constants.h"
#include "testing/gtest/include/gtest/gtest.h"
typedef testing::Test TranslateHelperTest;
// Tests that well-known language code typos are fixed.
TEST_F(TranslateHelperTest, LanguageCodeTypoCorrection) {
std::string language;
// Strip the second and later codes.
language = std::string("ja,en");
TranslateHelper::CorrectLanguageCodeTypo(&language);
EXPECT_EQ("ja", language);
// Replace dash with hyphen.
language = std::string("ja_JP");
TranslateHelper::CorrectLanguageCodeTypo(&language);
EXPECT_EQ("ja-JP", language);
// Correct wrong cases.
language = std::string("JA-jp");
TranslateHelper::CorrectLanguageCodeTypo(&language);
EXPECT_EQ("ja-JP", language);
}
// Tests that invalid language code is reset to empty string.
TEST_F(TranslateHelperTest, ResetInvalidLanguageCode) {
std::string language;
language = std::string("ja");
TranslateHelper::ResetInvalidLanguageCode(&language);
EXPECT_EQ("ja", language);
language = std::string("ja-JP");
TranslateHelper::ResetInvalidLanguageCode(&language);
EXPECT_EQ("ja-JP", language);
// Invalid because of three characters before hyphen.
language = std::string("utf-8");
TranslateHelper::ResetInvalidLanguageCode(&language);
EXPECT_TRUE(language.empty());
// Invalid because of six characters after hyphen.
language = std::string("ja-YUKARI");
TranslateHelper::ResetInvalidLanguageCode(&language);
EXPECT_TRUE(language.empty());
// Invalid because of three characters.
language = std::string("YMO");
TranslateHelper::ResetInvalidLanguageCode(&language);
EXPECT_TRUE(language.empty());
}
// Tests that similar language table works.
TEST_F(TranslateHelperTest, SimilarLanguageCode) {
EXPECT_TRUE(TranslateHelper::IsSameOrSimilarLanguages("en", "en"));
EXPECT_FALSE(TranslateHelper::IsSameOrSimilarLanguages("en", "ja"));
EXPECT_TRUE(TranslateHelper::IsSameOrSimilarLanguages("bs", "hr"));
EXPECT_TRUE(TranslateHelper::IsSameOrSimilarLanguages("sr-ME", "sr"));
}
// Tests that well-known languages which often have wrong server configuration
// are handles.
TEST_F(TranslateHelperTest, WellKnownWrongConfiguration) {
EXPECT_TRUE(TranslateHelper::MaybeServerWrongConfiguration("en", "ja"));
EXPECT_TRUE(TranslateHelper::MaybeServerWrongConfiguration("en-US", "ja"));
EXPECT_TRUE(TranslateHelper::MaybeServerWrongConfiguration("en", "zh-CN"));
EXPECT_FALSE(TranslateHelper::MaybeServerWrongConfiguration("ja", "en"));
EXPECT_FALSE(TranslateHelper::MaybeServerWrongConfiguration("en", "he"));
}
// Tests that the language meta tag providing wrong information is ignored by
// TranslateHelper due to disagreement between meta tag and CLD.
TEST_F(TranslateHelperTest, CLDDisagreeWithWrongLanguageCode) {
string16 contents = ASCIIToUTF16(
""
"This is a page apparently written in English. Even though "
"content-language is provided, the value will be ignored if the value "
"is suspicious.");
std::string cld_language;
bool is_cld_reliable;
std::string language =
TranslateHelper::DeterminePageLanguage(std::string("ja"), std::string(),
contents, &cld_language,
&is_cld_reliable);
EXPECT_EQ(chrome::kUnknownLanguageCode, language);
EXPECT_EQ("en", cld_language);
EXPECT_TRUE(is_cld_reliable);
}
// Tests that the language meta tag providing "en-US" style information is
// agreed by CLD.
TEST_F(TranslateHelperTest, CLDAgreeWithLanguageCodeHavingCountryCode) {
string16 contents = ASCIIToUTF16(
""
"This is a page apparently written in English. Even though "
"content-language is provided, the value will be ignored if the value "
"is suspicious.");
std::string cld_language;
bool is_cld_reliable;
std::string language =
TranslateHelper::DeterminePageLanguage(std::string("en-US"),
std::string(), contents,
&cld_language, &is_cld_reliable);
EXPECT_EQ("en-US", language);
EXPECT_EQ("en", cld_language);
EXPECT_TRUE(is_cld_reliable);
}
// Tests that the language meta tag providing wrong information is ignored and
// CLD's language will be adopted by TranslateHelper due to an invalid meta tag.
TEST_F(TranslateHelperTest, InvalidLanguageMetaTagProviding) {
string16 contents = ASCIIToUTF16(
""
"This is a page apparently written in English. Even though "
"content-language is provided, the value will be ignored and CLD's"
" language will be adopted if the value is invalid.");
std::string cld_language;
bool is_cld_reliable;
std::string language =
TranslateHelper::DeterminePageLanguage(std::string("utf-8"),
std::string(), contents,
&cld_language, &is_cld_reliable);
EXPECT_EQ("en", language);
EXPECT_EQ("en", cld_language);
EXPECT_TRUE(is_cld_reliable);
}
// Tests that the language meta tag providing wrong information is ignored
// because of valid html lang attribute.
TEST_F(TranslateHelperTest, AdoptHtmlLang) {
string16 contents = ASCIIToUTF16(
""
"This is a page apparently written in English. Even though "
"content-language is provided, the value will be ignored if the value "
"is suspicious.");
std::string cld_language;
bool is_cld_reliable;
std::string language =
TranslateHelper::DeterminePageLanguage(std::string("ja"),
std::string("en"),
contents, &cld_language,
&is_cld_reliable);
EXPECT_EQ("en", language);
EXPECT_EQ("en", cld_language);
EXPECT_TRUE(is_cld_reliable);
}