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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/common/locale_util.h"
#include <string_view>
#include "base/command_line.h"
#include "build/build_config.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace language {
namespace {
typedef testing::Test LocaleUtilTest;
TEST_F(LocaleUtilTest, SplitIntoMainAndTail) {
typedef std::pair<std::string_view, std::string_view> StringPiecePair;
EXPECT_EQ(StringPiecePair("", ""), SplitIntoMainAndTail(""));
EXPECT_EQ(StringPiecePair("en", ""), SplitIntoMainAndTail("en"));
EXPECT_EQ(StringPiecePair("ogard543i", ""),
SplitIntoMainAndTail("ogard543i"));
EXPECT_EQ(StringPiecePair("en", "-AU"), SplitIntoMainAndTail("en-AU"));
EXPECT_EQ(StringPiecePair("es", "-419"), SplitIntoMainAndTail("es-419"));
EXPECT_EQ(StringPiecePair("en", "-AU-2009"),
SplitIntoMainAndTail("en-AU-2009"));
}
TEST_F(LocaleUtilTest, ConvertToActualUILocale) {
std::string locale;
//---------------------------------------------------------------------------
// Languages that are enabled as display UI.
//---------------------------------------------------------------------------
locale = "en-US";
bool is_ui = ConvertToActualUILocale(&locale);
EXPECT_TRUE(is_ui);
EXPECT_EQ("en-US", locale);
locale = "it";
is_ui = ConvertToActualUILocale(&locale);
EXPECT_TRUE(is_ui);
EXPECT_EQ("it", locale);
locale = "fr-FR";
is_ui = ConvertToActualUILocale(&locale);
EXPECT_TRUE(is_ui);
EXPECT_EQ("fr", locale);
//---------------------------------------------------------------------------
// Languages that are converted to their fallback version.
//---------------------------------------------------------------------------
// All Latin American Spanish languages fall back to "es-419".
for (const char* es_locale : {"es-AR", "es-CL", "es-CO", "es-CR", "es-HN",
"es-MX", "es-PE", "es-US", "es-UY", "es-VE"}) {
locale = es_locale;
is_ui = ConvertToActualUILocale(&locale);
EXPECT_TRUE(is_ui) << es_locale;
#if BUILDFLAG(IS_IOS)
// iOS uses a different name for es-419 (es-MX).
EXPECT_EQ("es-MX", locale) << es_locale;
#else
EXPECT_EQ("es-419", locale) << es_locale;
#endif
}
// English falls back to US.
locale = "en";
is_ui = ConvertToActualUILocale(&locale);
EXPECT_TRUE(is_ui);
#if BUILDFLAG(IS_APPLE)
// On Apple platforms, "en" is used instead of "en-US".
EXPECT_EQ("en", locale);
#else
EXPECT_EQ("en-US", locale);
#endif
// All other regional English languages fall back to UK.
for (const char* en_locale :
{"en-AU", "en-CA", "en-GB-oxendict", "en-IN", "en-NZ", "en-ZA"}) {
locale = en_locale;
is_ui = ConvertToActualUILocale(&locale);
EXPECT_TRUE(is_ui) << en_locale;
EXPECT_EQ("en-GB", locale) << en_locale;
}
locale = "pt";
is_ui = ConvertToActualUILocale(&locale);
EXPECT_TRUE(is_ui);
#if BUILDFLAG(IS_IOS)
// On iOS, "pt" is used instead of "pt-BR".
EXPECT_EQ("pt", locale);
#else
EXPECT_EQ("pt-BR", locale);
#endif
locale = "it-CH";
is_ui = ConvertToActualUILocale(&locale);
EXPECT_TRUE(is_ui);
EXPECT_EQ("it", locale);
locale = "no";
is_ui = ConvertToActualUILocale(&locale);
EXPECT_TRUE(is_ui);
EXPECT_EQ("nb", locale);
locale = "it-IT";
is_ui = ConvertToActualUILocale(&locale);
EXPECT_TRUE(is_ui);
EXPECT_EQ("it", locale);
locale = "de-DE";
is_ui = ConvertToActualUILocale(&locale);
EXPECT_TRUE(is_ui);
EXPECT_EQ("de", locale);
//---------------------------------------------------------------------------
// Languages that cannot be used as display UI.
//---------------------------------------------------------------------------
// This only matters for ChromeOS and Windows, as they are the only systems
// where users can set the display UI.
#if BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_WIN)
locale = "sd"; // Sindhi
is_ui = ConvertToActualUILocale(&locale);
EXPECT_FALSE(is_ui);
locale = "ga"; // Irish
is_ui = ConvertToActualUILocale(&locale);
EXPECT_FALSE(is_ui);
locale = "ky"; // Kyrgyz
is_ui = ConvertToActualUILocale(&locale);
EXPECT_FALSE(is_ui);
#endif
}
} // namespace
} // namespace language
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