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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/language/core/browser/accept_languages_service.h"
#include "components/prefs/pref_registry_simple.h"
#include "components/prefs/testing_pref_service.h"
#include "components/translate/core/browser/translate_download_manager.h"
#include "testing/gtest/include/gtest/gtest.h"
using translate::TranslateDownloadManager;
namespace language {
namespace {
// RAII class to set the TranslateDownloadManager application locale, and then
// restore it to the original value when the object goes out of scope.
class TranslateLocaleRestorer {
public:
explicit TranslateLocaleRestorer(const std::string& new_locale)
: existing_locale_(
TranslateDownloadManager::GetInstance()->application_locale()) {
TranslateDownloadManager::GetInstance()->set_application_locale(new_locale);
}
~TranslateLocaleRestorer() {
TranslateDownloadManager::GetInstance()->set_application_locale(
existing_locale_);
}
private:
const std::string existing_locale_;
};
TEST(AcceptLanguagesServiceTest, TestIsAcceptLanguage) {
const char* const pref_setting = "translate-accept-languages";
TestingPrefServiceSimple prefs;
prefs.registry()->RegisterStringPref(pref_setting, "en-US,es,zh-CN");
AcceptLanguagesService accept_languages(&prefs, pref_setting);
// All valid.
EXPECT_TRUE(accept_languages.IsAcceptLanguage("en"));
EXPECT_TRUE(accept_languages.IsAcceptLanguage("en-US"));
EXPECT_TRUE(accept_languages.IsAcceptLanguage("es"));
EXPECT_TRUE(accept_languages.IsAcceptLanguage("zh-CN"));
// Not valid language.
EXPECT_FALSE(accept_languages.IsAcceptLanguage("xx"));
// zh-XX cannot be shortened to zh.
EXPECT_FALSE(accept_languages.IsAcceptLanguage("zh"));
}
TEST(AcceptLanguagesServiceTest, TestCanBeAcceptLanguage) {
TranslateLocaleRestorer locale_restorer("es");
// Valid accept languages.
EXPECT_TRUE(AcceptLanguagesService::CanBeAcceptLanguage("en"));
EXPECT_TRUE(AcceptLanguagesService::CanBeAcceptLanguage("en-US"));
EXPECT_TRUE(AcceptLanguagesService::CanBeAcceptLanguage("es"));
EXPECT_TRUE(AcceptLanguagesService::CanBeAcceptLanguage("es-419"));
EXPECT_TRUE(AcceptLanguagesService::CanBeAcceptLanguage("zh-CN"));
// Not valid format.
EXPECT_FALSE(AcceptLanguagesService::CanBeAcceptLanguage("en-us"));
EXPECT_FALSE(AcceptLanguagesService::CanBeAcceptLanguage("zh-Hant"));
// Not valid language.
EXPECT_FALSE(AcceptLanguagesService::CanBeAcceptLanguage("xx"));
}
} // namespace
} // namespace language
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