fmt/test/locale-test.cc

160 lines
6.2 KiB
C++
Raw Normal View History

2018-11-21 14:36:16 +00:00
// Formatting library for C++ - locale tests
2018-11-14 17:39:37 +00:00
//
// Copyright (c) 2012 - present, Victor Zverovich
// All rights reserved.
//
// For the license information refer to format.h.
#include "fmt/locale.h"
2020-05-07 22:59:46 +00:00
2020-08-03 17:05:18 +00:00
#include <complex>
2018-11-14 17:39:37 +00:00
#include "gmock.h"
2020-05-10 14:25:42 +00:00
using fmt::detail::max_value;
#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
2019-01-13 02:27:38 +00:00
template <typename Char> struct numpunct : std::numpunct<Char> {
2018-11-14 17:39:37 +00:00
protected:
2019-07-04 00:25:57 +00:00
Char do_decimal_point() const FMT_OVERRIDE { return '?'; }
std::string do_grouping() const FMT_OVERRIDE { return "\03"; }
2018-11-14 23:35:24 +00:00
Char do_thousands_sep() const FMT_OVERRIDE { return '~'; }
2018-11-14 17:39:37 +00:00
};
template <typename Char> struct no_grouping : std::numpunct<Char> {
protected:
Char do_decimal_point() const FMT_OVERRIDE { return '.'; }
std::string do_grouping() const FMT_OVERRIDE { return ""; }
Char do_thousands_sep() const FMT_OVERRIDE { return ','; }
};
template <typename Char> struct special_grouping : std::numpunct<Char> {
protected:
Char do_decimal_point() const FMT_OVERRIDE { return '.'; }
std::string do_grouping() const FMT_OVERRIDE { return "\03\02"; }
Char do_thousands_sep() const FMT_OVERRIDE { return ','; }
};
template <typename Char> struct small_grouping : std::numpunct<Char> {
protected:
Char do_decimal_point() const FMT_OVERRIDE { return '.'; }
std::string do_grouping() const FMT_OVERRIDE { return "\01"; }
Char do_thousands_sep() const FMT_OVERRIDE { return ','; }
};
2019-07-04 00:25:57 +00:00
TEST(LocaleTest, DoubleDecimalPoint) {
std::locale loc(std::locale(), new numpunct<char>());
2020-07-03 14:27:22 +00:00
EXPECT_EQ("1?23", fmt::format(loc, "{:L}", 1.23));
2021-01-17 17:01:00 +00:00
EXPECT_EQ("1?230000", fmt::format(loc, "{:Lf}", 1.23));
2019-07-04 00:25:57 +00:00
}
2018-11-14 17:39:37 +00:00
TEST(LocaleTest, Format) {
2018-11-14 23:35:24 +00:00
std::locale loc(std::locale(), new numpunct<char>());
2020-07-03 14:27:22 +00:00
EXPECT_EQ("1234567", fmt::format(std::locale(), "{:L}", 1234567));
EXPECT_EQ("1~234~567", fmt::format(loc, "{:L}", 1234567));
EXPECT_EQ("-1~234~567", fmt::format(loc, "{:L}", -1234567));
EXPECT_EQ("-256", fmt::format(loc, "{:L}", -256));
2018-11-14 23:35:24 +00:00
fmt::format_arg_store<fmt::format_context, int> as{1234567};
2020-07-03 14:27:22 +00:00
EXPECT_EQ("1~234~567", fmt::vformat(loc, "{:L}", fmt::format_args(as)));
2018-11-14 23:35:24 +00:00
std::string s;
2020-07-03 14:27:22 +00:00
fmt::format_to(std::back_inserter(s), loc, "{:L}", 1234567);
2018-11-14 23:35:24 +00:00
EXPECT_EQ("1~234~567", s);
std::locale no_grouping_loc(std::locale(), new no_grouping<char>());
2020-07-03 14:27:22 +00:00
EXPECT_EQ("1234567", fmt::format(no_grouping_loc, "{:L}", 1234567));
std::locale special_grouping_loc(std::locale(), new special_grouping<char>());
2020-07-03 14:27:22 +00:00
EXPECT_EQ("1,23,45,678", fmt::format(special_grouping_loc, "{:L}", 12345678));
EXPECT_EQ("12,345", fmt::format(special_grouping_loc, "{:L}", 12345));
std::locale small_grouping_loc(std::locale(), new small_grouping<char>());
EXPECT_EQ("4,2,9,4,9,6,7,2,9,5",
2020-07-03 14:27:22 +00:00
fmt::format(small_grouping_loc, "{:L}", max_value<uint32_t>()));
2018-11-14 23:35:24 +00:00
}
TEST(LocaleTest, FormatDetaultAlign) {
std::locale special_grouping_loc(std::locale(), new special_grouping<char>());
EXPECT_EQ(" 12,345", fmt::format(special_grouping_loc, "{:8L}", 12345));
}
2018-11-14 23:35:24 +00:00
TEST(LocaleTest, WFormat) {
std::locale loc(std::locale(), new numpunct<wchar_t>());
2020-07-03 14:27:22 +00:00
EXPECT_EQ(L"1234567", fmt::format(std::locale(), L"{:L}", 1234567));
EXPECT_EQ(L"1~234~567", fmt::format(loc, L"{:L}", 1234567));
2018-11-14 23:35:24 +00:00
fmt::format_arg_store<fmt::wformat_context, int> as{1234567};
2020-07-03 14:27:22 +00:00
EXPECT_EQ(L"1~234~567", fmt::vformat(loc, L"{:L}", fmt::wformat_args(as)));
EXPECT_EQ(L"1234567", fmt::format(std::locale("C"), L"{:L}", 1234567));
std::locale no_grouping_loc(std::locale(), new no_grouping<wchar_t>());
2020-07-03 14:27:22 +00:00
EXPECT_EQ(L"1234567", fmt::format(no_grouping_loc, L"{:L}", 1234567));
std::locale special_grouping_loc(std::locale(),
new special_grouping<wchar_t>());
EXPECT_EQ(L"1,23,45,678",
2020-07-03 14:27:22 +00:00
fmt::format(special_grouping_loc, L"{:L}", 12345678));
std::locale small_grouping_loc(std::locale(), new small_grouping<wchar_t>());
EXPECT_EQ(L"4,2,9,4,9,6,7,2,9,5",
2020-07-03 14:27:22 +00:00
fmt::format(small_grouping_loc, L"{:L}", max_value<uint32_t>()));
2018-11-14 17:39:37 +00:00
}
TEST(LocaleTest, DoubleFormatter) {
auto loc = std::locale(std::locale(), new special_grouping<char>());
auto f = fmt::formatter<int>();
auto parse_ctx = fmt::format_parse_context("L");
f.parse(parse_ctx);
char buf[10] = {};
fmt::basic_format_context<char*, char> format_ctx(
buf, {}, fmt::detail::locale_ref(loc));
*f.format(12345, format_ctx) = 0;
EXPECT_STREQ("12,345", buf);
}
2020-08-03 17:05:18 +00:00
FMT_BEGIN_NAMESPACE
template <class charT> struct formatter<std::complex<double>, charT> {
private:
detail::dynamic_format_specs<char> specs_;
public:
FMT_CONSTEXPR typename basic_format_parse_context<charT>::iterator parse(
2020-08-03 17:05:18 +00:00
basic_format_parse_context<charT>& ctx) {
using handler_type =
detail::dynamic_specs_handler<basic_format_parse_context<charT>>;
detail::specs_checker<handler_type> handler(handler_type(specs_, ctx),
detail::type::string_type);
auto it = parse_format_specs(ctx.begin(), ctx.end(), handler);
2020-08-22 14:56:28 +00:00
detail::parse_float_type_spec(specs_, ctx.error_handler());
2020-08-03 17:05:18 +00:00
return it;
}
template <class FormatContext>
typename FormatContext::iterator format(const std::complex<double>& c,
FormatContext& ctx) {
detail::handle_dynamic_spec<detail::precision_checker>(
specs_.precision, specs_.precision_ref, ctx);
auto specs = std::string();
if (specs_.precision > 0) specs = fmt::format(".{}", specs_.precision);
if (specs_.type) specs += specs_.type;
2020-08-03 17:05:18 +00:00
auto real = fmt::format(ctx.locale().template get<std::locale>(),
"{:" + specs + "}", c.real());
2020-08-03 17:05:18 +00:00
auto imag = fmt::format(ctx.locale().template get<std::locale>(),
"{:" + specs + "}", c.imag());
2020-08-03 17:05:18 +00:00
auto fill_align_width = std::string();
2020-08-22 14:56:28 +00:00
if (specs_.width > 0)
fill_align_width = fmt::format(">{}", specs_.width);
2020-08-03 17:05:18 +00:00
return format_to(
ctx.out(), "{:" + fill_align_width + "}",
fmt::format(c.real() != 0 ? "({0}+{1}i)" : "{1}i", real, imag));
}
};
FMT_END_NAMESPACE
TEST(FormatTest, Complex) {
std::string s = fmt::format("{}", std::complex<double>(1, 2));
EXPECT_EQ(s, "(1+2i)");
2020-08-22 14:56:28 +00:00
EXPECT_EQ(fmt::format("{:.2f}", std::complex<double>(1, 2)), "(1.00+2.00i)");
EXPECT_EQ(fmt::format("{:8}", std::complex<double>(1, 2)), " (1+2i)");
2020-08-03 17:05:18 +00:00
}
#endif // FMT_STATIC_THOUSANDS_SEPARATOR