mirror of
https://github.com/fmtlib/fmt.git
synced 2025-06-24 17:01:42 +02:00
429 lines
14 KiB
C++
429 lines
14 KiB
C++
// Formatting library for C++ - formatting library tests
|
|
//
|
|
// Copyright (c) 2012 - present, Victor Zverovich
|
|
// All rights reserved.
|
|
//
|
|
// For the license information refer to format.h.
|
|
|
|
#include "fmt/xchar.h"
|
|
|
|
#include <algorithm>
|
|
#include <complex>
|
|
#include <cwchar>
|
|
#include <vector>
|
|
|
|
#include "fmt/chrono.h"
|
|
#include "fmt/color.h"
|
|
#include "fmt/ostream.h"
|
|
#include "fmt/ranges.h"
|
|
#include "fmt/std.h"
|
|
#include "gtest-extra.h" // Contains
|
|
#include "util.h" // get_locale
|
|
|
|
using fmt::detail::max_value;
|
|
using testing::Contains;
|
|
|
|
#if defined(__MINGW32__) && !defined(_UCRT)
|
|
// Only C89 conversion specifiers when using MSVCRT instead of UCRT
|
|
# define FMT_HAS_C99_STRFTIME 0
|
|
#else
|
|
# define FMT_HAS_C99_STRFTIME 1
|
|
#endif
|
|
|
|
struct non_string {};
|
|
|
|
template <typename T> class has_to_string_view_test : public testing::Test {};
|
|
|
|
using string_char_types = testing::Types<char, wchar_t, char16_t, char32_t>;
|
|
TYPED_TEST_SUITE(has_to_string_view_test, string_char_types);
|
|
|
|
template <typename Char>
|
|
struct derived_from_string_view : fmt::basic_string_view<Char> {};
|
|
|
|
TYPED_TEST(has_to_string_view_test, has_to_string_view) {
|
|
EXPECT_TRUE(fmt::detail::has_to_string_view<TypeParam*>::value);
|
|
EXPECT_TRUE(fmt::detail::has_to_string_view<const TypeParam*>::value);
|
|
EXPECT_TRUE(fmt::detail::has_to_string_view<TypeParam[2]>::value);
|
|
EXPECT_TRUE(fmt::detail::has_to_string_view<const TypeParam[2]>::value);
|
|
EXPECT_TRUE(
|
|
fmt::detail::has_to_string_view<std::basic_string<TypeParam>>::value);
|
|
EXPECT_TRUE(fmt::detail::has_to_string_view<
|
|
fmt::basic_string_view<TypeParam>>::value);
|
|
EXPECT_TRUE(fmt::detail::has_to_string_view<
|
|
derived_from_string_view<TypeParam>>::value);
|
|
using fmt_string_view = fmt::detail::std_string_view<TypeParam>;
|
|
EXPECT_TRUE(std::is_empty<fmt_string_view>::value !=
|
|
fmt::detail::has_to_string_view<fmt_string_view>::value);
|
|
EXPECT_FALSE(fmt::detail::has_to_string_view<non_string>::value);
|
|
}
|
|
|
|
// std::is_constructible is broken in MSVC until version 2015.
|
|
#if !FMT_MSC_VERSION || FMT_MSC_VERSION >= 1900
|
|
struct explicitly_convertible_to_wstring_view {
|
|
explicit operator fmt::wstring_view() const { return L"foo"; }
|
|
};
|
|
|
|
TEST(xchar_test, format_explicitly_convertible_to_wstring_view) {
|
|
// Types explicitly convertible to wstring_view are not formattable by
|
|
// default because it may introduce ODR violations.
|
|
static_assert(
|
|
!fmt::is_formattable<explicitly_convertible_to_wstring_view>::value, "");
|
|
}
|
|
#endif
|
|
|
|
TEST(xchar_test, format) {
|
|
EXPECT_EQ(fmt::format(L"{}", 42), L"42");
|
|
EXPECT_EQ(fmt::format(L"{}", 4.2), L"4.2");
|
|
EXPECT_EQ(fmt::format(L"{}", L"abc"), L"abc");
|
|
EXPECT_EQ(fmt::format(L"{}", L'z'), L"z");
|
|
EXPECT_THROW(fmt::format(fmt::runtime(L"{:*\x343E}"), 42), fmt::format_error);
|
|
EXPECT_EQ(fmt::format(L"{}", true), L"true");
|
|
EXPECT_EQ(fmt::format(L"{0}", L'a'), L"a");
|
|
EXPECT_EQ(fmt::format(L"Letter {}", L'\x40e'), L"Letter \x40e"); // Ў
|
|
if (sizeof(wchar_t) == 4)
|
|
EXPECT_EQ(fmt::format(fmt::runtime(L"{:𓀨>3}"), 42), L"𓀨42");
|
|
EXPECT_EQ(fmt::format(L"{}c{}", L"ab", 1), L"abc1");
|
|
}
|
|
|
|
TEST(xchar_test, is_formattable) {
|
|
static_assert(!fmt::is_formattable<const wchar_t*>::value, "");
|
|
}
|
|
|
|
TEST(xchar_test, compile_time_string) {
|
|
EXPECT_EQ(fmt::format(fmt::wformat_string<int>(L"{}"), 42), L"42");
|
|
#if defined(FMT_USE_STRING_VIEW) && FMT_CPLUSPLUS >= 201703L
|
|
EXPECT_EQ(fmt::format(FMT_STRING(std::wstring_view(L"{}")), 42), L"42");
|
|
#endif
|
|
}
|
|
|
|
TEST(xchar_test, format_to) {
|
|
auto buf = std::vector<wchar_t>();
|
|
fmt::format_to(std::back_inserter(buf), L"{}{}", 42, L'\0');
|
|
EXPECT_STREQ(buf.data(), L"42");
|
|
}
|
|
|
|
TEST(xchar_test, compile_time_string_format_to) {
|
|
std::wstring ws;
|
|
fmt::format_to(std::back_inserter(ws), FMT_STRING(L"{}"), 42);
|
|
EXPECT_EQ(L"42", ws);
|
|
}
|
|
|
|
TEST(xchar_test, vformat_to) {
|
|
int n = 42;
|
|
auto args = fmt::make_wformat_args(n);
|
|
auto w = std::wstring();
|
|
fmt::vformat_to(std::back_inserter(w), L"{}", args);
|
|
EXPECT_EQ(L"42", w);
|
|
}
|
|
|
|
namespace test {
|
|
struct struct_as_wstring_view {};
|
|
auto format_as(struct_as_wstring_view) -> fmt::wstring_view { return L"foo"; }
|
|
} // namespace test
|
|
|
|
TEST(xchar_test, format_as) {
|
|
EXPECT_EQ(fmt::format(L"{}", test::struct_as_wstring_view()), L"foo");
|
|
}
|
|
|
|
TEST(format_test, wide_format_to_n) {
|
|
wchar_t buffer[4];
|
|
buffer[3] = L'x';
|
|
auto result = fmt::format_to_n(buffer, 3, L"{}", 12345);
|
|
EXPECT_EQ(5u, result.size);
|
|
EXPECT_EQ(buffer + 3, result.out);
|
|
EXPECT_EQ(L"123x", fmt::wstring_view(buffer, 4));
|
|
buffer[0] = L'x';
|
|
buffer[1] = L'x';
|
|
buffer[2] = L'x';
|
|
result = fmt::format_to_n(buffer, 3, L"{}", L'A');
|
|
EXPECT_EQ(1u, result.size);
|
|
EXPECT_EQ(buffer + 1, result.out);
|
|
EXPECT_EQ(L"Axxx", fmt::wstring_view(buffer, 4));
|
|
result = fmt::format_to_n(buffer, 3, L"{}{} ", L'B', L'C');
|
|
EXPECT_EQ(3u, result.size);
|
|
EXPECT_EQ(buffer + 3, result.out);
|
|
EXPECT_EQ(L"BC x", fmt::wstring_view(buffer, 4));
|
|
}
|
|
|
|
TEST(xchar_test, named_arg_udl) {
|
|
using namespace fmt::literals;
|
|
auto udl_a =
|
|
fmt::format(L"{first}{second}{first}{third}", L"first"_a = L"abra",
|
|
L"second"_a = L"cad", L"third"_a = 99);
|
|
EXPECT_EQ(
|
|
fmt::format(L"{first}{second}{first}{third}", fmt::arg(L"first", L"abra"),
|
|
fmt::arg(L"second", L"cad"), fmt::arg(L"third", 99)),
|
|
udl_a);
|
|
}
|
|
|
|
TEST(xchar_test, print) {
|
|
// Check that the wide print overload compiles.
|
|
if (fmt::detail::const_check(false)) {
|
|
fmt::print(L"test");
|
|
fmt::println(L"test");
|
|
}
|
|
}
|
|
|
|
TEST(xchar_test, join) {
|
|
int v[3] = {1, 2, 3};
|
|
EXPECT_EQ(fmt::format(L"({})", fmt::join(v, v + 3, L", ")), L"(1, 2, 3)");
|
|
auto t = std::tuple<wchar_t, int, float>('a', 1, 2.0f);
|
|
EXPECT_EQ(fmt::format(L"({})", fmt::join(t, L", ")), L"(a, 1, 2)");
|
|
}
|
|
|
|
#ifdef __cpp_lib_byte
|
|
TEST(xchar_test, join_bytes) {
|
|
auto v = std::vector<std::byte>{std::byte(1), std::byte(2), std::byte(3)};
|
|
EXPECT_EQ(fmt::format(L"{}", fmt::join(v, L", ")), L"1, 2, 3");
|
|
}
|
|
#endif
|
|
|
|
enum streamable_enum {};
|
|
|
|
std::wostream& operator<<(std::wostream& os, streamable_enum) {
|
|
return os << L"streamable_enum";
|
|
}
|
|
|
|
namespace fmt {
|
|
template <>
|
|
struct formatter<streamable_enum, wchar_t> : basic_ostream_formatter<wchar_t> {
|
|
};
|
|
} // namespace fmt
|
|
|
|
enum unstreamable_enum {};
|
|
auto format_as(unstreamable_enum e) -> int { return e; }
|
|
|
|
TEST(xchar_test, enum) {
|
|
EXPECT_EQ(L"streamable_enum", fmt::format(L"{}", streamable_enum()));
|
|
EXPECT_EQ(L"0", fmt::format(L"{}", unstreamable_enum()));
|
|
}
|
|
|
|
struct streamable_and_unformattable {};
|
|
|
|
auto operator<<(std::wostream& os, streamable_and_unformattable)
|
|
-> std::wostream& {
|
|
return os << L"foo";
|
|
}
|
|
|
|
TEST(xchar_test, streamed) {
|
|
EXPECT_FALSE(fmt::is_formattable<streamable_and_unformattable>());
|
|
EXPECT_EQ(fmt::format(L"{}", fmt::streamed(streamable_and_unformattable())),
|
|
L"foo");
|
|
}
|
|
|
|
TEST(xchar_test, sign_not_truncated) {
|
|
wchar_t format_str[] = {
|
|
L'{', L':',
|
|
'+' | static_cast<wchar_t>(1 << fmt::detail::num_bits<char>()), L'}', 0};
|
|
EXPECT_THROW(fmt::format(fmt::runtime(format_str), 42), fmt::format_error);
|
|
}
|
|
|
|
TEST(xchar_test, chrono) {
|
|
auto tm = std::tm();
|
|
tm.tm_year = 116;
|
|
tm.tm_mon = 3;
|
|
tm.tm_mday = 25;
|
|
tm.tm_hour = 11;
|
|
tm.tm_min = 22;
|
|
tm.tm_sec = 33;
|
|
EXPECT_EQ(fmt::format("The date is {:%Y-%m-%d %H:%M:%S}.", tm),
|
|
"The date is 2016-04-25 11:22:33.");
|
|
EXPECT_EQ(L"42s", fmt::format(L"{}", std::chrono::seconds(42)));
|
|
EXPECT_EQ(fmt::format(L"{:%F}", tm), L"2016-04-25");
|
|
EXPECT_EQ(fmt::format(L"{:%T}", tm), L"11:22:33");
|
|
|
|
auto t = fmt::sys_time<std::chrono::seconds>(std::chrono::seconds(290088000));
|
|
EXPECT_EQ(fmt::format("{:%Y-%m-%d %H:%M:%S}", t), "1979-03-12 12:00:00");
|
|
}
|
|
|
|
TEST(xchar_test, color) {
|
|
EXPECT_EQ(fmt::format(fg(fmt::rgb(255, 20, 30)), L"rgb(255,20,30) wide"),
|
|
L"\x1b[38;2;255;020;030mrgb(255,20,30) wide\x1b[0m");
|
|
}
|
|
|
|
TEST(xchar_test, ostream) {
|
|
#if !FMT_GCC_VERSION || FMT_GCC_VERSION >= 409
|
|
{
|
|
std::wostringstream wos;
|
|
fmt::print(wos, L"Don't {}!", L"panic");
|
|
EXPECT_EQ(wos.str(), L"Don't panic!");
|
|
}
|
|
|
|
{
|
|
std::wostringstream wos;
|
|
fmt::println(wos, L"Don't {}!", L"panic");
|
|
EXPECT_EQ(wos.str(), L"Don't panic!\n");
|
|
}
|
|
#endif
|
|
}
|
|
|
|
TEST(xchar_test, format_map) {
|
|
auto m = std::map<std::wstring, int>{{L"one", 1}, {L"t\"wo", 2}};
|
|
EXPECT_EQ(fmt::format(L"{}", m), L"{\"one\": 1, \"t\\\"wo\": 2}");
|
|
}
|
|
|
|
TEST(xchar_test, escape_string) {
|
|
using vec = std::vector<std::wstring>;
|
|
EXPECT_EQ(fmt::format(L"{}", vec{L"\n\r\t\"\\"}), L"[\"\\n\\r\\t\\\"\\\\\"]");
|
|
EXPECT_EQ(fmt::format(L"{}", vec{L"понедельник"}), L"[\"понедельник\"]");
|
|
}
|
|
|
|
TEST(xchar_test, to_wstring) { EXPECT_EQ(L"42", fmt::to_wstring(42)); }
|
|
|
|
#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
|
|
|
|
template <typename Char> struct numpunct : std::numpunct<Char> {
|
|
protected:
|
|
Char do_decimal_point() const override { return '?'; }
|
|
std::string do_grouping() const override { return "\03"; }
|
|
Char do_thousands_sep() const override { return '~'; }
|
|
};
|
|
|
|
template <typename Char> struct no_grouping : std::numpunct<Char> {
|
|
protected:
|
|
Char do_decimal_point() const override { return '.'; }
|
|
std::string do_grouping() const override { return ""; }
|
|
Char do_thousands_sep() const override { return ','; }
|
|
};
|
|
|
|
template <typename Char> struct special_grouping : std::numpunct<Char> {
|
|
protected:
|
|
Char do_decimal_point() const override { return '.'; }
|
|
std::string do_grouping() const override { return "\03\02"; }
|
|
Char do_thousands_sep() const override { return ','; }
|
|
};
|
|
|
|
template <typename Char> struct small_grouping : std::numpunct<Char> {
|
|
protected:
|
|
Char do_decimal_point() const override { return '.'; }
|
|
std::string do_grouping() const override { return "\01"; }
|
|
Char do_thousands_sep() const override { return ','; }
|
|
};
|
|
|
|
TEST(locale_test, localized_double) {
|
|
auto loc = std::locale(std::locale(), new numpunct<char>());
|
|
EXPECT_EQ(fmt::format(loc, "{:L}", 1.23), "1?23");
|
|
EXPECT_EQ(fmt::format(loc, "{:Lf}", 1.23), "1?230000");
|
|
EXPECT_EQ(fmt::format(loc, "{:L}", 1234.5), "1~234?5");
|
|
EXPECT_EQ(fmt::format(loc, "{:L}", 12000.0), "12~000");
|
|
EXPECT_EQ(fmt::format(loc, "{:8L}", 1230.0), " 1~230");
|
|
EXPECT_EQ(fmt::format(loc, "{:15.6Lf}", 0.1), " 0?100000");
|
|
EXPECT_EQ(fmt::format(loc, "{:15.6Lf}", 1.0), " 1?000000");
|
|
EXPECT_EQ(fmt::format(loc, "{:15.6Lf}", 1e3), " 1~000?000000");
|
|
}
|
|
|
|
TEST(locale_test, format) {
|
|
auto loc = std::locale(std::locale(), new numpunct<char>());
|
|
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));
|
|
auto n = 1234567;
|
|
EXPECT_EQ("1~234~567", fmt::vformat(loc, "{:L}", fmt::make_format_args(n)));
|
|
auto s = std::string();
|
|
fmt::format_to(std::back_inserter(s), loc, "{:L}", 1234567);
|
|
EXPECT_EQ("1~234~567", s);
|
|
|
|
auto no_grouping_loc = std::locale(std::locale(), new no_grouping<char>());
|
|
EXPECT_EQ("1234567", fmt::format(no_grouping_loc, "{:L}", 1234567));
|
|
|
|
auto special_grouping_loc =
|
|
std::locale(std::locale(), new special_grouping<char>());
|
|
EXPECT_EQ("1,23,45,678", fmt::format(special_grouping_loc, "{:L}", 12345678));
|
|
EXPECT_EQ("12,345", fmt::format(special_grouping_loc, "{:L}", 12345));
|
|
|
|
auto small_grouping_loc =
|
|
std::locale(std::locale(), new small_grouping<char>());
|
|
EXPECT_EQ("4,2,9,4,9,6,7,2,9,5",
|
|
fmt::format(small_grouping_loc, "{:L}", max_value<uint32_t>()));
|
|
}
|
|
|
|
TEST(locale_test, format_default_align) {
|
|
auto loc = std::locale({}, new special_grouping<char>());
|
|
EXPECT_EQ(" 12,345", fmt::format(loc, "{:8L}", 12345));
|
|
}
|
|
|
|
TEST(locale_test, format_plus) {
|
|
auto loc = std::locale({}, new special_grouping<char>());
|
|
EXPECT_EQ("+100", fmt::format(loc, "{:+L}", 100));
|
|
}
|
|
|
|
TEST(locale_test, wformat) {
|
|
auto loc = std::locale(std::locale(), new numpunct<wchar_t>());
|
|
EXPECT_EQ(L"1234567", fmt::format(std::locale(), L"{:L}", 1234567));
|
|
EXPECT_EQ(L"1~234~567", fmt::format(loc, L"{:L}", 1234567));
|
|
int n = 1234567;
|
|
EXPECT_EQ(L"1~234~567",
|
|
fmt::vformat(loc, L"{:L}", fmt::make_wformat_args(n)));
|
|
EXPECT_EQ(L"1234567", fmt::format(std::locale("C"), L"{:L}", 1234567));
|
|
|
|
auto no_grouping_loc = std::locale(std::locale(), new no_grouping<wchar_t>());
|
|
EXPECT_EQ(L"1234567", fmt::format(no_grouping_loc, L"{:L}", 1234567));
|
|
|
|
auto special_grouping_loc =
|
|
std::locale(std::locale(), new special_grouping<wchar_t>());
|
|
EXPECT_EQ(L"1,23,45,678",
|
|
fmt::format(special_grouping_loc, L"{:L}", 12345678));
|
|
|
|
auto small_grouping_loc =
|
|
std::locale(std::locale(), new small_grouping<wchar_t>());
|
|
EXPECT_EQ(L"4,2,9,4,9,6,7,2,9,5",
|
|
fmt::format(small_grouping_loc, L"{:L}", max_value<uint32_t>()));
|
|
}
|
|
|
|
TEST(locale_test, int_formatter) {
|
|
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);
|
|
auto buf = fmt::memory_buffer();
|
|
fmt::basic_format_context<fmt::appender, char> format_ctx(
|
|
fmt::appender(buf), {}, fmt::detail::locale_ref(loc));
|
|
f.format(12345, format_ctx);
|
|
EXPECT_EQ(fmt::to_string(buf), "12,345");
|
|
}
|
|
|
|
TEST(locale_test, chrono_weekday) {
|
|
auto loc = get_locale("es_ES.UTF-8", "Spanish_Spain.1252");
|
|
auto loc_old = std::locale::global(loc);
|
|
auto sat = fmt::weekday(6);
|
|
EXPECT_EQ(fmt::format(L"{}", sat), L"Sat");
|
|
if (loc != std::locale::classic()) {
|
|
// L'\341' is 'á'.
|
|
auto saturdays =
|
|
std::vector<std::wstring>{L"s\341b", L"s\341.", L"s\341b."};
|
|
EXPECT_THAT(saturdays, Contains(fmt::format(loc, L"{:L}", sat)));
|
|
}
|
|
std::locale::global(loc_old);
|
|
}
|
|
|
|
TEST(locale_test, sign) {
|
|
EXPECT_EQ(fmt::format(std::locale(), L"{:L}", -50), L"-50");
|
|
}
|
|
|
|
TEST(std_test_xchar, format_bitset) {
|
|
auto bs = std::bitset<6>(42);
|
|
EXPECT_EQ(fmt::format(L"{}", bs), L"101010");
|
|
EXPECT_EQ(fmt::format(L"{:0>8}", bs), L"00101010");
|
|
EXPECT_EQ(fmt::format(L"{:-^12}", bs), L"---101010---");
|
|
}
|
|
|
|
TEST(std_test_xchar, complex) {
|
|
auto s = fmt::format(L"{}", std::complex<double>(1, 2));
|
|
EXPECT_EQ(s, L"(1+2i)");
|
|
EXPECT_EQ(fmt::format(L"{:.2f}", std::complex<double>(1, 2)),
|
|
L"(1.00+2.00i)");
|
|
EXPECT_EQ(fmt::format(L"{:8}", std::complex<double>(1, 2)), L"(1+2i) ");
|
|
EXPECT_EQ(fmt::format(L"{:-<8}", std::complex<double>(1, 2)), L"(1+2i)--");
|
|
}
|
|
|
|
TEST(std_test_xchar, optional) {
|
|
# ifdef __cpp_lib_optional
|
|
EXPECT_EQ(fmt::format(L"{}", std::optional{L'C'}), L"optional(\'C\')");
|
|
EXPECT_EQ(fmt::format(L"{}", std::optional{std::wstring{L"wide string"}}),
|
|
L"optional(\"wide string\")");
|
|
# endif
|
|
}
|
|
|
|
#endif // FMT_STATIC_THOUSANDS_SEPARATOR
|