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// Copyright 2014 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/language_prefs.h"
#include <algorithm>
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "base/json/json_reader.h"
#include "base/test/test_timeouts.h"
#include "base/values.h"
#include "build/build_config.h"
#include "components/language/core/browser/language_prefs_test_util.h"
#include "components/language/core/browser/pref_names.h"
#include "components/prefs/scoped_user_pref_update.h"
#include "components/sync_preferences/testing_pref_service_syncable.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using testing::ElementsAreArray;
namespace language {
class LanguagePrefsTest : public testing::Test {
protected:
LanguagePrefsTest()
: prefs_(new sync_preferences::TestingPrefServiceSyncable()) {
LanguagePrefs::RegisterProfilePrefs(prefs_->registry());
language_prefs_ = std::make_unique<language::LanguagePrefs>(prefs_.get());
}
void SetUp() override {
prefs_->SetString(language::prefs::kAcceptLanguages, std::string());
#if BUILDFLAG(IS_CHROMEOS)
prefs_->SetString(language::prefs::kPreferredLanguages, std::string());
#endif
}
std::unique_ptr<sync_preferences::TestingPrefServiceSyncable> prefs_;
std::unique_ptr<language::LanguagePrefs> language_prefs_;
};
TEST_F(LanguagePrefsTest, GetFirstLanguageTest) {
EXPECT_EQ("a", language::GetFirstLanguage("a,b,c"));
EXPECT_EQ("en-US", language::GetFirstLanguage("en-US,en,en-GB"));
EXPECT_EQ("en-US", language::GetFirstLanguage("en-US"));
EXPECT_EQ("", language::GetFirstLanguage(""));
}
TEST_F(LanguagePrefsTest, UpdateLanguageList) {
language::test::LanguagePrefTester content_languages_tester =
language::test::LanguagePrefTester(prefs_.get());
// Empty update.
std::vector<std::string> languages;
language_prefs_->SetUserSelectedLanguagesList(languages);
content_languages_tester.ExpectAcceptLanguagePrefs("");
// One language.
languages = {"en"};
language_prefs_->SetUserSelectedLanguagesList(languages);
content_languages_tester.ExpectAcceptLanguagePrefs("en");
// More than one language.
languages = {"en", "ja", "it"};
language_prefs_->SetUserSelectedLanguagesList(languages);
content_languages_tester.ExpectAcceptLanguagePrefs("en,ja,it");
// Locale-specific codes.
languages = {"en-US", "ja", "en-CA", "fr-CA"};
language_prefs_->SetUserSelectedLanguagesList(languages);
content_languages_tester.ExpectAcceptLanguagePrefs("en-US,ja,en-CA,fr-CA");
}
TEST_F(LanguagePrefsTest, UpdateForcedLanguageList) {
// Only test policy-forced languages on non-Chrome OS platforms.
#if BUILDFLAG(IS_CHROMEOS)
GTEST_SKIP();
#else
language::test::LanguagePrefTester content_languages_tester =
language::test::LanguagePrefTester(prefs_.get());
// Empty update.
std::vector<std::string> languages;
language_prefs_->SetUserSelectedLanguagesList(languages);
content_languages_tester.ExpectAcceptLanguagePrefs("");
// Forced languages with no duplicates.
languages = {"fr"};
language_prefs_->SetUserSelectedLanguagesList(languages);
content_languages_tester.SetForcedLanguagePrefs({"en", "it"});
content_languages_tester.ExpectSelectedLanguagePrefs("fr");
content_languages_tester.ExpectAcceptLanguagePrefs("en,it,fr");
content_languages_tester.SetForcedLanguagePrefs({}); // Reset pref
// Forced languages with some duplicates.
languages = {"en-US", "en", "fr", "fr-CA"};
language_prefs_->SetUserSelectedLanguagesList(languages);
content_languages_tester.SetForcedLanguagePrefs({"en", "it"});
content_languages_tester.ExpectSelectedLanguagePrefs("en-US,en,fr,fr-CA");
content_languages_tester.ExpectAcceptLanguagePrefs("en,it,en-US,fr,fr-CA");
content_languages_tester.SetForcedLanguagePrefs({}); // Reset pref
// Forced languages with full duplicates.
languages = {"en", "es", "fr"};
language_prefs_->SetUserSelectedLanguagesList(languages);
content_languages_tester.SetForcedLanguagePrefs({"en", "es", "fr"});
content_languages_tester.ExpectSelectedLanguagePrefs("en,es,fr");
content_languages_tester.ExpectAcceptLanguagePrefs("en,es,fr");
content_languages_tester.SetForcedLanguagePrefs({}); // Reset pref
// Add then remove forced languages with no duplicates.
languages = {"en", "fr"};
language_prefs_->SetUserSelectedLanguagesList(languages);
content_languages_tester.SetForcedLanguagePrefs({"it"});
content_languages_tester.ExpectSelectedLanguagePrefs("en,fr");
content_languages_tester.ExpectAcceptLanguagePrefs("it,en,fr");
// Remove forced languages
content_languages_tester.SetForcedLanguagePrefs({});
content_languages_tester.ExpectSelectedLanguagePrefs("en,fr");
content_languages_tester.ExpectAcceptLanguagePrefs("en,fr");
// Add then remove forced languages with some duplicates.
languages = {"en", "fr"};
language_prefs_->SetUserSelectedLanguagesList(languages);
content_languages_tester.SetForcedLanguagePrefs({"en", "it"});
content_languages_tester.ExpectSelectedLanguagePrefs("en,fr");
content_languages_tester.ExpectAcceptLanguagePrefs("en,it,fr");
// Remove forced languages
content_languages_tester.SetForcedLanguagePrefs({});
content_languages_tester.ExpectSelectedLanguagePrefs("en,fr");
content_languages_tester.ExpectAcceptLanguagePrefs("en,fr");
// Add then remove forced languages with full duplicates.
languages = {"en", "fr"};
language_prefs_->SetUserSelectedLanguagesList(languages);
content_languages_tester.SetForcedLanguagePrefs({"en", "fr"});
content_languages_tester.ExpectSelectedLanguagePrefs("en,fr");
content_languages_tester.ExpectAcceptLanguagePrefs("en,fr");
// Remove forced languages
content_languages_tester.SetForcedLanguagePrefs({});
content_languages_tester.ExpectSelectedLanguagePrefs("en,fr");
content_languages_tester.ExpectAcceptLanguagePrefs("en,fr");
#endif
}
TEST_F(LanguagePrefsTest, ResetLanguagePrefs) {
language::test::LanguagePrefTester content_languages_tester =
language::test::LanguagePrefTester(prefs_.get());
language_prefs_->SetUserSelectedLanguagesList({"en", "es", "fr"});
content_languages_tester.ExpectSelectedLanguagePrefs("en,es,fr");
content_languages_tester.ExpectAcceptLanguagePrefs("en,es,fr");
#if BUILDFLAG(IS_ANDROID)
language_prefs_->SetULPLanguages({"a", "b", "c"});
EXPECT_THAT(language_prefs_->GetULPLanguages(),
testing::ElementsAre("a", "b", "c"));
#endif
ResetLanguagePrefs(prefs_.get());
#if BUILDFLAG(IS_ANDROID)
EXPECT_THAT(language_prefs_->GetULPLanguages(), testing::IsEmpty());
#endif
content_languages_tester.ExpectSelectedLanguagePrefs("");
// Accept languages pref is reset to the default value, not cleared.
#if BUILDFLAG(IS_CHROMEOS)
content_languages_tester.ExpectAcceptLanguagePrefs(
prefs_->GetDefaultPrefValue(language::prefs::kPreferredLanguages)
->GetString());
#else // BUILDFLAG(IS_CHROMEOS)
content_languages_tester.ExpectAcceptLanguagePrefs(
prefs_->GetDefaultPrefValue(language::prefs::kAcceptLanguages)
->GetString());
#endif // BUILDFLAG(IS_CHROMEOS)
}
TEST_F(LanguagePrefsTest, ULPLanguagesPref) {
#if BUILDFLAG(IS_ANDROID)
// ULPLanguagesPref is initially empty.
EXPECT_THAT(language_prefs_->GetULPLanguages(), testing::IsEmpty());
// Set ULP Language Preference.
language_prefs_->SetULPLanguages({"a", "b", "c"});
EXPECT_THAT(language_prefs_->GetULPLanguages(),
testing::ElementsAre("a", "b", "c"));
// Setting ULP languages to a new list clears the old list.
language_prefs_->SetULPLanguages({"d", "e", "f"});
EXPECT_THAT(language_prefs_->GetULPLanguages(),
testing::ElementsAre("d", "e", "f"));
// Setting ULP languages to a an empty list clears it.
language_prefs_->SetULPLanguages({});
EXPECT_THAT(language_prefs_->GetULPLanguages(), testing::IsEmpty());
#endif
}
} // namespace language
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