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fmt/test/chrono-test.cc
Dimitrij Mijoski fc23cfbf4e Fix testsuite on MinGW + MSVCRT 
Fixes #2952. The testsuite indirectly called strftime() with conversion
specifiers defined only in C99. In MSVCRT this function conforms only to
C89. Only in the updated UCRT this functon provides the functionality of
C99.
2022-08-14 08:40:38 -07:00

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// Formatting library for C++ - time formatting tests
//
// Copyright (c) 2012 - present, Victor Zverovich
// All rights reserved.
//
// For the license information refer to format.h.
#include "fmt/chrono.h"
#include <ctime>
#include <vector>
#include "gtest-extra.h" // EXPECT_THROW_MSG
#include "util.h" // get_locale
using fmt::runtime;
using testing::Contains;
auto make_tm() -> std::tm {
auto time = std::tm();
time.tm_mday = 1;
return time;
}
auto make_hour(int h) -> std::tm {
auto time = make_tm();
time.tm_hour = h;
return time;
}
auto make_minute(int m) -> std::tm {
auto time = make_tm();
time.tm_min = m;
return time;
}
auto make_second(int s) -> std::tm {
auto time = make_tm();
time.tm_sec = s;
return time;
}
std::string system_strftime(const std::string& format, const std::tm* timeptr,
std::locale* locptr = nullptr) {
auto loc = locptr ? *locptr : std::locale::classic();
auto& facet = std::use_facet<std::time_put<char>>(loc);
std::ostringstream os;
os.imbue(loc);
facet.put(os, os, ' ', timeptr, format.c_str(),
format.c_str() + format.size());
#ifdef _WIN32
// Workaround a bug in older versions of Universal CRT.
auto str = os.str();
if (str == "-0000") str = "+0000";
return str;
#else
return os.str();
#endif
}
FMT_CONSTEXPR std::tm make_tm(int year, int mon, int mday, int hour, int min,
int sec) {
auto tm = std::tm();
tm.tm_sec = sec;
tm.tm_min = min;
tm.tm_hour = hour;
tm.tm_mday = mday;
tm.tm_mon = mon - 1;
tm.tm_year = year - 1900;
return tm;
}
TEST(chrono_test, format_tm) {
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(fmt::format("{:%Y}", tm), "2016");
EXPECT_EQ(fmt::format("{:%C}", tm), "20");
EXPECT_EQ(fmt::format("{:%C%y}", tm), fmt::format("{:%Y}", tm));
EXPECT_EQ(fmt::format("{:%e}", tm), "25");
EXPECT_EQ(fmt::format("{:%D}", tm), "04/25/16");
EXPECT_EQ(fmt::format("{:%F}", tm), "2016-04-25");
EXPECT_EQ(fmt::format("{:%T}", tm), "11:22:33");
// Short year
tm.tm_year = 999 - 1900;
tm.tm_mon = 0; // for %G
tm.tm_mday = 2; // for %G
tm.tm_wday = 3; // for %G
tm.tm_yday = 1; // for %G
EXPECT_EQ(fmt::format("{:%Y}", tm), "0999");
EXPECT_EQ(fmt::format("{:%C%y}", tm), "0999");
EXPECT_EQ(fmt::format("{:%G}", tm), "0999");
tm.tm_year = 27 - 1900;
EXPECT_EQ(fmt::format("{:%Y}", tm), "0027");
EXPECT_EQ(fmt::format("{:%C%y}", tm), "0027");
// Overflow year
tm.tm_year = 2147483647;
EXPECT_EQ(fmt::format("{:%Y}", tm), "2147485547");
tm.tm_year = -2147483648;
EXPECT_EQ(fmt::format("{:%Y}", tm), "-2147481748");
// for week on the year
// https://www.cl.cam.ac.uk/~mgk25/iso-time.html
std::vector<std::tm> tm_list = {
make_tm(1975, 12, 29, 12, 14, 16), // W01
make_tm(1977, 1, 2, 12, 14, 16), // W53
make_tm(1999, 12, 27, 12, 14, 16), // W52
make_tm(1999, 12, 31, 12, 14, 16), // W52
make_tm(2000, 1, 1, 12, 14, 16), // W52
make_tm(2000, 1, 2, 12, 14, 16), // W52
make_tm(2000, 1, 3, 12, 14, 16) // W1
};
#if defined(__MINGW32__) && !defined(_UCRT)
GTEST_SKIP() << "Skip the rest of this test because it relies on strftime() "
"conforming to C99, but on this platform, MINGW + MSVCRT, "
"the function conforms only to C89.";
#endif
const std::string iso_week_spec = "%Y-%m-%d: %G %g %V";
for (auto ctm : tm_list) {
// Calculate tm_yday, tm_wday, etc.
std::time_t t = std::mktime(&ctm);
tm = *std::localtime(&t);
auto fmt_spec = fmt::format("{{:{}}}", iso_week_spec);
EXPECT_EQ(system_strftime(iso_week_spec, &tm),
fmt::format(fmt::runtime(fmt_spec), tm));
}
// Every day from 1970-01-01
std::time_t time_now = std::time(nullptr);
for (std::time_t t = 6 * 3600; t < time_now; t += 86400) {
tm = *std::localtime(&t);
auto fmt_spec = fmt::format("{{:{}}}", iso_week_spec);
EXPECT_EQ(system_strftime(iso_week_spec, &tm),
fmt::format(fmt::runtime(fmt_spec), tm));
}
}
// MSVC:
// minkernel\crts\ucrt\src\appcrt\time\wcsftime.cpp(971) : Assertion failed:
// timeptr->tm_year >= -1900 && timeptr->tm_year <= 8099
#ifndef _WIN32
TEST(chrono_test, format_tm_future) {
auto tm = std::tm();
tm.tm_year = 10445; // 10000+ years
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 12345-04-25 11:22:33.");
EXPECT_EQ(fmt::format("{:%Y}", tm), "12345");
EXPECT_EQ(fmt::format("{:%C}", tm), "123");
EXPECT_EQ(fmt::format("{:%C%y}", tm), fmt::format("{:%Y}", tm));
EXPECT_EQ(fmt::format("{:%D}", tm), "04/25/45");
EXPECT_EQ(fmt::format("{:%F}", tm), "12345-04-25");
EXPECT_EQ(fmt::format("{:%T}", tm), "11:22:33");
}
TEST(chrono_test, format_tm_past) {
auto tm = std::tm();
tm.tm_year = -2001;
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 -101-04-25 11:22:33.");
EXPECT_EQ(fmt::format("{:%Y}", tm), "-101");
// macOS %C - "-1"
// Linux %C - "-2"
// fmt %C - "-1"
EXPECT_EQ(fmt::format("{:%C}", tm), "-1");
EXPECT_EQ(fmt::format("{:%C%y}", tm), fmt::format("{:%Y}", tm));
// macOS %D - "04/25/01" (%y)
// Linux %D - "04/25/99" (%y)
// fmt %D - "04/25/01" (%y)
EXPECT_EQ(fmt::format("{:%D}", tm), "04/25/01");
EXPECT_EQ(fmt::format("{:%F}", tm), "-101-04-25");
EXPECT_EQ(fmt::format("{:%T}", tm), "11:22:33");
tm.tm_year = -1901; // -1
EXPECT_EQ(fmt::format("{:%Y}", tm), "-001");
EXPECT_EQ(fmt::format("{:%C%y}", tm), fmt::format("{:%Y}", tm));
tm.tm_year = -1911; // -11
EXPECT_EQ(fmt::format("{:%Y}", tm), "-011");
EXPECT_EQ(fmt::format("{:%C%y}", tm), fmt::format("{:%Y}", tm));
}
#endif
TEST(chrono_test, grow_buffer) {
auto s = std::string("{:");
for (int i = 0; i < 30; ++i) s += "%c";
s += "}\n";
auto t = std::time(nullptr);
(void)fmt::format(fmt::runtime(s), *std::localtime(&t));
}
TEST(chrono_test, format_to_empty_container) {
auto time = std::tm();
time.tm_sec = 42;
auto s = std::string();
fmt::format_to(std::back_inserter(s), "{:%S}", time);
EXPECT_EQ(s, "42");
}
TEST(chrono_test, empty_result) { EXPECT_EQ(fmt::format("{}", std::tm()), ""); }
auto equal(const std::tm& lhs, const std::tm& rhs) -> bool {
return lhs.tm_sec == rhs.tm_sec && lhs.tm_min == rhs.tm_min &&
lhs.tm_hour == rhs.tm_hour && lhs.tm_mday == rhs.tm_mday &&
lhs.tm_mon == rhs.tm_mon && lhs.tm_year == rhs.tm_year &&
lhs.tm_wday == rhs.tm_wday && lhs.tm_yday == rhs.tm_yday &&
lhs.tm_isdst == rhs.tm_isdst;
}
TEST(chrono_test, localtime) {
auto t = std::time(nullptr);
auto tm = *std::localtime(&t);
EXPECT_TRUE(equal(tm, fmt::localtime(t)));
}
TEST(chrono_test, gmtime) {
auto t = std::time(nullptr);
auto tm = *std::gmtime(&t);
EXPECT_TRUE(equal(tm, fmt::gmtime(t)));
}
template <typename TimePoint> auto strftime_full(TimePoint tp) -> std::string {
auto t = std::chrono::system_clock::to_time_t(tp);
auto tm = *std::localtime(&t);
return system_strftime("%Y-%m-%d %H:%M:%S", &tm);
}
TEST(chrono_test, time_point) {
auto t1 = std::chrono::system_clock::now();
EXPECT_EQ(strftime_full(t1), fmt::format("{:%Y-%m-%d %H:%M:%S}", t1));
EXPECT_EQ(strftime_full(t1), fmt::format("{}", t1));
using time_point =
std::chrono::time_point<std::chrono::system_clock, std::chrono::seconds>;
auto t2 = time_point(std::chrono::seconds(42));
EXPECT_EQ(strftime_full(t2), fmt::format("{:%Y-%m-%d %H:%M:%S}", t2));
std::vector<std::string> spec_list = {
"%%", "%n", "%t", "%Y", "%EY", "%y", "%Oy", "%Ey", "%C",
"%EC", "%G", "%g", "%b", "%h", "%B", "%m", "%Om", "%U",
"%OU", "%W", "%OW", "%V", "%OV", "%j", "%d", "%Od", "%e",
"%Oe", "%a", "%A", "%w", "%Ow", "%u", "%Ou", "%H", "%OH",
"%I", "%OI", "%M", "%OM", "%S", "%OS", "%x", "%Ex", "%X",
"%EX", "%D", "%F", "%R", "%T", "%p", "%z", "%Z"};
#ifndef _WIN32
// Disabled on Windows because these formats are not consistent among
// platforms.
spec_list.insert(spec_list.end(), {"%c", "%Ec", "%r"});
#elif defined(__MINGW32__) && !defined(_UCRT)
// Only C89 conversion specifiers when using MSVCRT instead of UCRT
spec_list = {"%%", "%Y", "%y", "%b", "%B", "%m", "%U", "%W", "%j", "%d", "%a",
"%A", "%w", "%H", "%I", "%M", "%S", "%x", "%X", "%p", "%Z"};
#endif
spec_list.push_back("%Y-%m-%d %H:%M:%S");
for (const auto& spec : spec_list) {
auto t = std::chrono::system_clock::to_time_t(t1);
auto tm = *std::localtime(&t);
auto sys_output = system_strftime(spec, &tm);
auto fmt_spec = fmt::format("{{:{}}}", spec);
EXPECT_EQ(sys_output, fmt::format(fmt::runtime(fmt_spec), t1));
EXPECT_EQ(sys_output, fmt::format(fmt::runtime(fmt_spec), tm));
}
}
#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
TEST(chrono_test, format_default) {
EXPECT_EQ("42s", fmt::format("{}", std::chrono::seconds(42)));
EXPECT_EQ("42as",
fmt::format("{}", std::chrono::duration<int, std::atto>(42)));
EXPECT_EQ("42fs",
fmt::format("{}", std::chrono::duration<int, std::femto>(42)));
EXPECT_EQ("42ps",
fmt::format("{}", std::chrono::duration<int, std::pico>(42)));
EXPECT_EQ("42ns", fmt::format("{}", std::chrono::nanoseconds(42)));
EXPECT_EQ("42µs", fmt::format("{}", std::chrono::microseconds(42)));
EXPECT_EQ("42ms", fmt::format("{}", std::chrono::milliseconds(42)));
EXPECT_EQ("42cs",
fmt::format("{}", std::chrono::duration<int, std::centi>(42)));
EXPECT_EQ("42ds",
fmt::format("{}", std::chrono::duration<int, std::deci>(42)));
EXPECT_EQ("42s", fmt::format("{}", std::chrono::seconds(42)));
EXPECT_EQ("42das",
fmt::format("{}", std::chrono::duration<int, std::deca>(42)));
EXPECT_EQ("42hs",
fmt::format("{}", std::chrono::duration<int, std::hecto>(42)));
EXPECT_EQ("42ks",
fmt::format("{}", std::chrono::duration<int, std::kilo>(42)));
EXPECT_EQ("42Ms",
fmt::format("{}", std::chrono::duration<int, std::mega>(42)));
EXPECT_EQ("42Gs",
fmt::format("{}", std::chrono::duration<int, std::giga>(42)));
EXPECT_EQ("42Ts",
fmt::format("{}", std::chrono::duration<int, std::tera>(42)));
EXPECT_EQ("42Ps",
fmt::format("{}", std::chrono::duration<int, std::peta>(42)));
EXPECT_EQ("42Es",
fmt::format("{}", std::chrono::duration<int, std::exa>(42)));
EXPECT_EQ("42m", fmt::format("{}", std::chrono::minutes(42)));
EXPECT_EQ("42h", fmt::format("{}", std::chrono::hours(42)));
EXPECT_EQ(
"42[15]s",
fmt::format("{}", std::chrono::duration<int, std::ratio<15, 1>>(42)));
EXPECT_EQ(
"42[15/4]s",
fmt::format("{}", std::chrono::duration<int, std::ratio<15, 4>>(42)));
}
TEST(chrono_test, align) {
auto s = std::chrono::seconds(42);
EXPECT_EQ("42s ", fmt::format("{:5}", s));
EXPECT_EQ("42s ", fmt::format("{:{}}", s, 5));
EXPECT_EQ(" 42s", fmt::format("{:>5}", s));
EXPECT_EQ("**42s**", fmt::format("{:*^7}", s));
EXPECT_EQ("03:25:45 ",
fmt::format("{:12%H:%M:%S}", std::chrono::seconds(12345)));
EXPECT_EQ(" 03:25:45",
fmt::format("{:>12%H:%M:%S}", std::chrono::seconds(12345)));
EXPECT_EQ("~~03:25:45~~",
fmt::format("{:~^12%H:%M:%S}", std::chrono::seconds(12345)));
EXPECT_EQ("03:25:45 ",
fmt::format("{:{}%H:%M:%S}", std::chrono::seconds(12345), 12));
}
TEST(chrono_test, format_specs) {
EXPECT_EQ("%", fmt::format("{:%%}", std::chrono::seconds(0)));
EXPECT_EQ("\n", fmt::format("{:%n}", std::chrono::seconds(0)));
EXPECT_EQ("\t", fmt::format("{:%t}", std::chrono::seconds(0)));
EXPECT_EQ("00", fmt::format("{:%S}", std::chrono::seconds(0)));
EXPECT_EQ("00", fmt::format("{:%S}", std::chrono::seconds(60)));
EXPECT_EQ("42", fmt::format("{:%S}", std::chrono::seconds(42)));
EXPECT_EQ("01.234", fmt::format("{:%S}", std::chrono::milliseconds(1234)));
EXPECT_EQ("00", fmt::format("{:%M}", std::chrono::minutes(0)));
EXPECT_EQ("00", fmt::format("{:%M}", std::chrono::minutes(60)));
EXPECT_EQ("42", fmt::format("{:%M}", std::chrono::minutes(42)));
EXPECT_EQ("01", fmt::format("{:%M}", std::chrono::seconds(61)));
EXPECT_EQ("00", fmt::format("{:%H}", std::chrono::hours(0)));
EXPECT_EQ("00", fmt::format("{:%H}", std::chrono::hours(24)));
EXPECT_EQ("14", fmt::format("{:%H}", std::chrono::hours(14)));
EXPECT_EQ("01", fmt::format("{:%H}", std::chrono::minutes(61)));
EXPECT_EQ("12", fmt::format("{:%I}", std::chrono::hours(0)));
EXPECT_EQ("12", fmt::format("{:%I}", std::chrono::hours(12)));
EXPECT_EQ("12", fmt::format("{:%I}", std::chrono::hours(24)));
EXPECT_EQ("04", fmt::format("{:%I}", std::chrono::hours(4)));
EXPECT_EQ("02", fmt::format("{:%I}", std::chrono::hours(14)));
EXPECT_EQ("03:25:45",
fmt::format("{:%H:%M:%S}", std::chrono::seconds(12345)));
EXPECT_EQ("03:25", fmt::format("{:%R}", std::chrono::seconds(12345)));
EXPECT_EQ("03:25:45", fmt::format("{:%T}", std::chrono::seconds(12345)));
EXPECT_EQ("12345", fmt::format("{:%Q}", std::chrono::seconds(12345)));
EXPECT_EQ("s", fmt::format("{:%q}", std::chrono::seconds(12345)));
}
TEST(chrono_test, invalid_specs) {
auto sec = std::chrono::seconds(0);
EXPECT_THROW_MSG((void)fmt::format(runtime("{:%a}"), sec), fmt::format_error,
"no date");
EXPECT_THROW_MSG((void)fmt::format(runtime("{:%A}"), sec), fmt::format_error,
"no date");
EXPECT_THROW_MSG((void)fmt::format(runtime("{:%c}"), sec), fmt::format_error,
"no date");
EXPECT_THROW_MSG((void)fmt::format(runtime("{:%x}"), sec), fmt::format_error,
"no date");
EXPECT_THROW_MSG((void)fmt::format(runtime("{:%Ex}"), sec), fmt::format_error,
"no date");
EXPECT_THROW_MSG((void)fmt::format(runtime("{:%X}"), sec), fmt::format_error,
"no date");
EXPECT_THROW_MSG((void)fmt::format(runtime("{:%EX}"), sec), fmt::format_error,
"no date");
EXPECT_THROW_MSG((void)fmt::format(runtime("{:%D}"), sec), fmt::format_error,
"no date");
EXPECT_THROW_MSG((void)fmt::format(runtime("{:%F}"), sec), fmt::format_error,
"no date");
EXPECT_THROW_MSG((void)fmt::format(runtime("{:%Ec}"), sec), fmt::format_error,
"no date");
EXPECT_THROW_MSG((void)fmt::format(runtime("{:%w}"), sec), fmt::format_error,
"no date");
EXPECT_THROW_MSG((void)fmt::format(runtime("{:%u}"), sec), fmt::format_error,
"no date");
EXPECT_THROW_MSG((void)fmt::format(runtime("{:%b}"), sec), fmt::format_error,
"no date");
EXPECT_THROW_MSG((void)fmt::format(runtime("{:%B}"), sec), fmt::format_error,
"no date");
EXPECT_THROW_MSG((void)fmt::format(runtime("{:%z}"), sec), fmt::format_error,
"no date");
EXPECT_THROW_MSG((void)fmt::format(runtime("{:%Z}"), sec), fmt::format_error,
"no date");
EXPECT_THROW_MSG((void)fmt::format(runtime("{:%Eq}"), sec), fmt::format_error,
"invalid format");
EXPECT_THROW_MSG((void)fmt::format(runtime("{:%Oq}"), sec), fmt::format_error,
"invalid format");
}
auto format_tm(const std::tm& time, fmt::string_view spec,
const std::locale& loc) -> std::string {
auto& facet = std::use_facet<std::time_put<char>>(loc);
std::ostringstream os;
os.imbue(loc);
facet.put(os, os, ' ', &time, spec.begin(), spec.end());
return os.str();
}
TEST(chrono_test, locale) {
auto loc = get_locale("ja_JP.utf8");
if (loc == std::locale::classic()) return;
# define EXPECT_TIME(spec, time, duration) \
{ \
auto jp_loc = std::locale("ja_JP.utf8"); \
EXPECT_EQ(format_tm(time, spec, jp_loc), \
fmt::format(jp_loc, "{:L" spec "}", duration)); \
}
EXPECT_TIME("%OH", make_hour(14), std::chrono::hours(14));
EXPECT_TIME("%OI", make_hour(14), std::chrono::hours(14));
EXPECT_TIME("%OM", make_minute(42), std::chrono::minutes(42));
EXPECT_TIME("%OS", make_second(42), std::chrono::seconds(42));
auto time = make_tm();
time.tm_hour = 3;
time.tm_min = 25;
time.tm_sec = 45;
auto sec = std::chrono::seconds(12345);
EXPECT_TIME("%r", time, sec);
EXPECT_TIME("%p", time, sec);
}
using dms = std::chrono::duration<double, std::milli>;
TEST(chrono_test, format_default_fp) {
typedef std::chrono::duration<float> fs;
EXPECT_EQ("1.234s", fmt::format("{}", fs(1.234)));
typedef std::chrono::duration<float, std::milli> fms;
EXPECT_EQ("1.234ms", fmt::format("{}", fms(1.234)));
typedef std::chrono::duration<double> ds;
EXPECT_EQ("1.234s", fmt::format("{}", ds(1.234)));
EXPECT_EQ("1.234ms", fmt::format("{}", dms(1.234)));
}
TEST(chrono_test, format_precision) {
EXPECT_THROW_MSG(
(void)fmt::format(runtime("{:.2}"), std::chrono::seconds(42)),
fmt::format_error, "precision not allowed for this argument type");
EXPECT_EQ("1ms", fmt::format("{:.0}", dms(1.234)));
EXPECT_EQ("1.2ms", fmt::format("{:.1}", dms(1.234)));
EXPECT_EQ("1.23ms", fmt::format("{:.{}}", dms(1.234), 2));
EXPECT_EQ("13ms", fmt::format("{:.0}", dms(12.56)));
EXPECT_EQ("12.6ms", fmt::format("{:.1}", dms(12.56)));
EXPECT_EQ("12.56ms", fmt::format("{:.2}", dms(12.56)));
}
TEST(chrono_test, format_full_specs) {
EXPECT_EQ("1ms ", fmt::format("{:6.0}", dms(1.234)));
EXPECT_EQ("1.2ms ", fmt::format("{:6.1}", dms(1.234)));
EXPECT_EQ(" 1.23ms", fmt::format("{:>8.{}}", dms(1.234), 2));
EXPECT_EQ(" 1.2ms ", fmt::format("{:^{}.{}}", dms(1.234), 7, 1));
EXPECT_EQ(" 1.23ms ", fmt::format("{0:^{2}.{1}}", dms(1.234), 2, 8));
EXPECT_EQ("=1.234ms=", fmt::format("{:=^{}.{}}", dms(1.234), 9, 3));
EXPECT_EQ("*1.2340ms*", fmt::format("{:*^10.4}", dms(1.234)));
EXPECT_EQ("13ms ", fmt::format("{:6.0}", dms(12.56)));
EXPECT_EQ(" 13ms", fmt::format("{:>8.{}}", dms(12.56), 0));
EXPECT_EQ(" 13ms ", fmt::format("{:^{}.{}}", dms(12.56), 6, 0));
EXPECT_EQ(" 13ms ", fmt::format("{0:^{2}.{1}}", dms(12.56), 0, 8));
EXPECT_EQ("==13ms===", fmt::format("{:=^{}.{}}", dms(12.56), 9, 0));
EXPECT_EQ("***13ms***", fmt::format("{:*^10.0}", dms(12.56)));
}
TEST(chrono_test, format_simple_q) {
typedef std::chrono::duration<float> fs;
EXPECT_EQ("1.234 s", fmt::format("{:%Q %q}", fs(1.234)));
typedef std::chrono::duration<float, std::milli> fms;
EXPECT_EQ("1.234 ms", fmt::format("{:%Q %q}", fms(1.234)));
typedef std::chrono::duration<double> ds;
EXPECT_EQ("1.234 s", fmt::format("{:%Q %q}", ds(1.234)));
EXPECT_EQ("1.234 ms", fmt::format("{:%Q %q}", dms(1.234)));
}
TEST(chrono_test, format_precision_q) {
EXPECT_THROW_MSG(
(void)fmt::format(runtime("{:.2%Q %q}"), std::chrono::seconds(42)),
fmt::format_error, "precision not allowed for this argument type");
EXPECT_EQ("1.2 ms", fmt::format("{:.1%Q %q}", dms(1.234)));
EXPECT_EQ("1.23 ms", fmt::format("{:.{}%Q %q}", dms(1.234), 2));
}
TEST(chrono_test, format_full_specs_q) {
EXPECT_EQ("1 ms ", fmt::format("{:7.0%Q %q}", dms(1.234)));
EXPECT_EQ("1.2 ms ", fmt::format("{:7.1%Q %q}", dms(1.234)));
EXPECT_EQ(" 1.23 ms", fmt::format("{:>8.{}%Q %q}", dms(1.234), 2));
EXPECT_EQ(" 1.2 ms ", fmt::format("{:^{}.{}%Q %q}", dms(1.234), 8, 1));
EXPECT_EQ(" 1.23 ms ", fmt::format("{0:^{2}.{1}%Q %q}", dms(1.234), 2, 9));
EXPECT_EQ("=1.234 ms=", fmt::format("{:=^{}.{}%Q %q}", dms(1.234), 10, 3));
EXPECT_EQ("*1.2340 ms*", fmt::format("{:*^11.4%Q %q}", dms(1.234)));
EXPECT_EQ("13 ms ", fmt::format("{:7.0%Q %q}", dms(12.56)));
EXPECT_EQ(" 13 ms", fmt::format("{:>8.{}%Q %q}", dms(12.56), 0));
EXPECT_EQ(" 13 ms ", fmt::format("{:^{}.{}%Q %q}", dms(12.56), 8, 0));
EXPECT_EQ(" 13 ms ", fmt::format("{0:^{2}.{1}%Q %q}", dms(12.56), 0, 9));
EXPECT_EQ("==13 ms==", fmt::format("{:=^{}.{}%Q %q}", dms(12.56), 9, 0));
EXPECT_EQ("***13 ms***", fmt::format("{:*^11.0%Q %q}", dms(12.56)));
}
TEST(chrono_test, invalid_width_id) {
EXPECT_THROW((void)fmt::format(runtime("{:{o}"), std::chrono::seconds(0)),
fmt::format_error);
}
TEST(chrono_test, invalid_colons) {
EXPECT_THROW((void)fmt::format(runtime("{0}=:{0::"), std::chrono::seconds(0)),
fmt::format_error);
}
TEST(chrono_test, negative_durations) {
EXPECT_EQ("-12345", fmt::format("{:%Q}", std::chrono::seconds(-12345)));
EXPECT_EQ("-03:25:45",
fmt::format("{:%H:%M:%S}", std::chrono::seconds(-12345)));
EXPECT_EQ("-00:01",
fmt::format("{:%M:%S}", std::chrono::duration<double>(-1)));
EXPECT_EQ("s", fmt::format("{:%q}", std::chrono::seconds(-12345)));
EXPECT_EQ("-00.127",
fmt::format("{:%S}",
std::chrono::duration<signed char, std::milli>{-127}));
auto min = std::numeric_limits<int>::min();
EXPECT_EQ(fmt::format("{}", min),
fmt::format("{:%Q}", std::chrono::duration<int>(min)));
}
TEST(chrono_test, special_durations) {
auto value = fmt::format("{:%S}", std::chrono::duration<double>(1e20));
EXPECT_EQ(value, "40");
auto nan = std::numeric_limits<double>::quiet_NaN();
EXPECT_EQ(
"nan nan nan nan nan:nan nan",
fmt::format("{:%I %H %M %S %R %r}", std::chrono::duration<double>(nan)));
EXPECT_EQ(fmt::format("{}", std::chrono::duration<float, std::exa>(1)),
"1Es");
EXPECT_EQ(fmt::format("{}", std::chrono::duration<float, std::atto>(1)),
"1as");
EXPECT_EQ(fmt::format("{:%R}", std::chrono::duration<char, std::mega>{2}),
"03:33");
EXPECT_EQ(fmt::format("{:%T}", std::chrono::duration<char, std::mega>{2}),
"03:33:20");
EXPECT_EQ("44.000000000000",
fmt::format("{:%S}", std::chrono::duration<float, std::pico>(
1.54213895E+26)));
}
TEST(chrono_test, unsigned_duration) {
EXPECT_EQ("42s", fmt::format("{}", std::chrono::duration<unsigned>(42)));
}
TEST(chrono_test, weekday) {
auto loc = get_locale("ru_RU.UTF-8");
std::locale::global(loc);
auto mon = fmt::weekday(1);
auto tm = std::tm();
tm.tm_wday = static_cast<int>(mon.c_encoding());
EXPECT_EQ(fmt::format("{}", mon), "Mon");
EXPECT_EQ(fmt::format("{:%a}", tm), "Mon");
if (loc != std::locale::classic()) {
EXPECT_THAT((std::vector<std::string>{"пн", "Пн", "пнд", "Пнд"}),
Contains(fmt::format(loc, "{:L}", mon)));
EXPECT_THAT((std::vector<std::string>{"пн", "Пн", "пнд", "Пнд"}),
Contains(fmt::format(loc, "{:%a}", tm)));
}
}
TEST(chrono_test, cpp20_duration_subsecond_support) {
using attoseconds = std::chrono::duration<long long, std::atto>;
// Check that 18 digits of subsecond precision are supported.
EXPECT_EQ(fmt::format("{:%S}", attoseconds{999999999999999999}),
"00.999999999999999999");
EXPECT_EQ(fmt::format("{:%S}", attoseconds{673231113420148734}),
"00.673231113420148734");
EXPECT_EQ(fmt::format("{:%S}", attoseconds{-673231113420148734}),
"-00.673231113420148734");
EXPECT_EQ(fmt::format("{:%S}", std::chrono::nanoseconds{13420148734}),
"13.420148734");
EXPECT_EQ(fmt::format("{:%S}", std::chrono::nanoseconds{-13420148734}),
"-13.420148734");
EXPECT_EQ(fmt::format("{:%S}", std::chrono::milliseconds{1234}), "01.234");
{
// Check that {:%H:%M:%S} is equivalent to {:%T}.
auto dur = std::chrono::milliseconds{3601234};
auto formatted_dur = fmt::format("{:%T}", dur);
EXPECT_EQ(formatted_dur, "01:00:01.234");
EXPECT_EQ(fmt::format("{:%H:%M:%S}", dur), formatted_dur);
}
using nanoseconds_dbl = std::chrono::duration<double, std::nano>;
EXPECT_EQ(fmt::format("{:%S}", nanoseconds_dbl{-123456789}), "-00.123456789");
EXPECT_EQ(fmt::format("{:%S}", nanoseconds_dbl{9123456789}), "09.123456789");
// Verify that only the seconds part is extracted and printed.
EXPECT_EQ(fmt::format("{:%S}", nanoseconds_dbl{99123456789}), "39.123456789");
EXPECT_EQ(fmt::format("{:%S}", nanoseconds_dbl{99123000000}), "39.123000000");
{
// Now the hour is printed, and we also test if negative doubles work.
auto dur = nanoseconds_dbl{-99123456789};
auto formatted_dur = fmt::format("{:%T}", dur);
EXPECT_EQ(formatted_dur, "-00:01:39.123456789");
EXPECT_EQ(fmt::format("{:%H:%M:%S}", dur), formatted_dur);
}
// Check that durations with precision greater than std::chrono::seconds have
// fixed precision, and print zeros even if there is no fractional part.
EXPECT_EQ(fmt::format("{:%S}", std::chrono::microseconds{7000000}),
"07.000000");
EXPECT_EQ(fmt::format("{:%S}", std::chrono::duration<long long, std::ratio<1, 3>>(1)),
"00.333333");
EXPECT_EQ(fmt::format("{:%S}", std::chrono::duration<long long, std::ratio<1, 7>>(1)),
"00.142857");
}
#endif // FMT_STATIC_THOUSANDS_SEPARATOR
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