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// Copyright (c) 2011 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 <stddef.h>
#include <stdint.h>
#include <limits>
#include "base/i18n/number_formatting.h"
#include "base/i18n/rtl.h"
#include "base/macros.h"
#include "base/strings/utf_string_conversions.h"
#include "base/test/icu_test_util.h"
#include "build/build_config.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/icu/source/i18n/unicode/usearch.h"
namespace base {
namespace {
TEST(NumberFormattingTest, FormatNumber) {
static const struct {
int64_t number;
const char* expected_english;
const char* expected_german;
} cases[] = {
{0, "0", "0"},
{1024, "1,024", "1.024"},
{std::numeric_limits<int64_t>::max(),
"9,223,372,036,854,775,807", "9.223.372.036.854.775.807"},
{std::numeric_limits<int64_t>::min(),
"-9,223,372,036,854,775,808", "-9.223.372.036.854.775.808"},
{-42, "-42", "-42"},
};
test::ScopedRestoreICUDefaultLocale restore_locale;
for (size_t i = 0; i < arraysize(cases); ++i) {
i18n::SetICUDefaultLocale("en");
testing::ResetFormatters();
EXPECT_EQ(cases[i].expected_english,
UTF16ToUTF8(FormatNumber(cases[i].number)));
i18n::SetICUDefaultLocale("de");
testing::ResetFormatters();
EXPECT_EQ(cases[i].expected_german,
UTF16ToUTF8(FormatNumber(cases[i].number)));
}
}
TEST(NumberFormattingTest, FormatDouble) {
static const struct {
double number;
int frac_digits;
const char* expected_english;
const char* expected_german;
} cases[] = {
{0.0, 0, "0", "0"},
#if !defined(OS_ANDROID)
// Bionic can't printf negative zero correctly.
{-0.0, 4, "-0.0000", "-0,0000"},
#endif
{1024.2, 0, "1,024", "1.024"},
{-1024.223, 2, "-1,024.22", "-1.024,22"},
{std::numeric_limits<double>::max(), 6,
"179,769,313,486,231,570,000,000,000,000,000,000,000,000,000,000,000,"
"000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,"
"000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,"
"000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,"
"000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,"
"000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,"
"000.000000",
"179.769.313.486.231.570.000.000.000.000.000.000.000.000.000.000.000."
"000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000."
"000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000."
"000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000."
"000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000."
"000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000."
"000,000000"},
{std::numeric_limits<double>::min(), 2, "0.00", "0,00"},
{-42.7, 3, "-42.700", "-42,700"},
};
test::ScopedRestoreICUDefaultLocale restore_locale;
for (size_t i = 0; i < arraysize(cases); ++i) {
i18n::SetICUDefaultLocale("en");
testing::ResetFormatters();
EXPECT_EQ(cases[i].expected_english,
UTF16ToUTF8(FormatDouble(cases[i].number, cases[i].frac_digits)));
i18n::SetICUDefaultLocale("de");
testing::ResetFormatters();
EXPECT_EQ(cases[i].expected_german,
UTF16ToUTF8(FormatDouble(cases[i].number, cases[i].frac_digits)));
}
}
TEST(NumberFormattingTest, FormatPercent) {
static const struct {
int64_t number;
const char* expected_english;
const char* expected_german; // Note: Space before % isn't \x20.
// Note: Eastern Arabic-Indic digits (U+06Fx) for Persian and
// Arabic-Indic digits (U+066x) for Arabic in Egypt(ar-EG). In Arabic (ar),
// uses European digits (Google-patch).
// See https://unicode.org/cldr/trac/ticket/9040 for details.
// See also https://unicode.org/cldr/trac/ticket/10176 .
// For now, take what CLDR 32 has (percent sign to the right of
// a number in Persian).
const char* expected_persian;
const char* expected_arabic;
const char* expected_arabic_egypt;
} cases[] = {
{0, "0%", u8"0\u00a0%", u8"\u06f0\u066a", u8"0\u200e%\u200e",
u8"\u0660\u066a\u061c"},
{42, "42%", "42\u00a0%", u8"\u06f4\u06f2\u066a", u8"42\u200e%\u200e",
"\u0664\u0662\u066a\u061c"},
{1024, "1,024%", "1.024\u00a0%", u8"\u06f1\u066c\u06f0\u06f2\u06f4\u066a",
"1,024\u200e%\u200e", "\u0661\u066c\u0660\u0662\u0664\u066a\u061c"},
};
test::ScopedRestoreICUDefaultLocale restore_locale;
for (size_t i = 0; i < arraysize(cases); ++i) {
i18n::SetICUDefaultLocale("en");
EXPECT_EQ(ASCIIToUTF16(cases[i].expected_english),
FormatPercent(cases[i].number));
i18n::SetICUDefaultLocale("de");
EXPECT_EQ(UTF8ToUTF16(cases[i].expected_german),
FormatPercent(cases[i].number));
i18n::SetICUDefaultLocale("fa");
EXPECT_EQ(UTF8ToUTF16(cases[i].expected_persian),
FormatPercent(cases[i].number));
i18n::SetICUDefaultLocale("ar");
EXPECT_EQ(UTF8ToUTF16(cases[i].expected_arabic),
FormatPercent(cases[i].number));
i18n::SetICUDefaultLocale("ar-EG");
EXPECT_EQ(UTF8ToUTF16(cases[i].expected_arabic_egypt),
FormatPercent(cases[i].number));
}
}
} // namespace
} // namespace base
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