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time_zone_format_test.cc
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// Copyright 2016 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "cctz/time_zone.h"
#include <chrono>
#include <iomanip>
#include <sstream>
#include <string>
#include "cctz/civil_time.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
using std::chrono::time_point_cast;
using std::chrono::system_clock;
using std::chrono::nanoseconds;
using std::chrono::microseconds;
using std::chrono::milliseconds;
using std::chrono::seconds;
using std::chrono::minutes;
using std::chrono::hours;
using testing::HasSubstr;
namespace cctz {
namespace {
// This helper is a macro so that failed expectations show up with the
// correct line numbers.
#define ExpectTime(tp, tz, y, m, d, hh, mm, ss, off, isdst, zone) \
do { \
time_zone::absolute_lookup al = tz.lookup(tp); \
EXPECT_EQ(y, al.cs.year()); \
EXPECT_EQ(m, al.cs.month()); \
EXPECT_EQ(d, al.cs.day()); \
EXPECT_EQ(hh, al.cs.hour()); \
EXPECT_EQ(mm, al.cs.minute()); \
EXPECT_EQ(ss, al.cs.second()); \
EXPECT_EQ(off, al.offset); \
EXPECT_TRUE(isdst == al.is_dst); \
EXPECT_STREQ(zone, al.abbr); \
} while (0)
const char RFC3339_full[] = "%Y-%m-%dT%H:%M:%E*S%Ez";
const char RFC3339_sec[] = "%Y-%m-%dT%H:%M:%S%Ez";
const char RFC1123_full[] = "%a, %d %b %Y %H:%M:%S %z";
const char RFC1123_no_wday[] = "%d %b %Y %H:%M:%S %z";
// A helper that tests the given format specifier by itself, and with leading
// and trailing characters. For example: TestFormatSpecifier(tp, "%a", "Thu").
template <typename D>
void TestFormatSpecifier(time_point<D> tp, time_zone tz, const std::string& fmt,
const std::string& ans) {
EXPECT_EQ(ans, format(fmt, tp, tz)) << fmt;
EXPECT_EQ("xxx " + ans, format("xxx " + fmt, tp, tz));
EXPECT_EQ(ans + " yyy", format(fmt + " yyy", tp, tz));
EXPECT_EQ("xxx " + ans + " yyy", format("xxx " + fmt + " yyy", tp, tz));
}
} // namespace
//
// Testing format()
//
TEST(Format, TimePointResolution) {
const char kFmt[] = "%H:%M:%E*S";
const time_zone utc = utc_time_zone();
const time_point<nanoseconds> t0 = system_clock::from_time_t(1420167845) +
milliseconds(123) + microseconds(456) +
nanoseconds(789);
EXPECT_EQ("03:04:05.123456789",
format(kFmt, time_point_cast<nanoseconds>(t0), utc));
EXPECT_EQ("03:04:05.123456",
format(kFmt, time_point_cast<microseconds>(t0), utc));
EXPECT_EQ("03:04:05.123",
format(kFmt, time_point_cast<milliseconds>(t0), utc));
EXPECT_EQ("03:04:05",
format(kFmt, time_point_cast<seconds>(t0), utc));
EXPECT_EQ("03:04:05",
format(kFmt, time_point_cast<sys_seconds>(t0), utc));
EXPECT_EQ("03:04:00",
format(kFmt, time_point_cast<minutes>(t0), utc));
EXPECT_EQ("03:00:00",
format(kFmt, time_point_cast<hours>(t0), utc));
}
TEST(Format, TimePointExtendedResolution) {
const char kFmt[] = "%H:%M:%E*S";
const time_zone utc = utc_time_zone();
const time_point<sys_seconds> tp =
std::chrono::time_point_cast<sys_seconds>(
std::chrono::system_clock::from_time_t(0)) +
std::chrono::hours(12) + std::chrono::minutes(34) +
std::chrono::seconds(56);
EXPECT_EQ(
"12:34:56.123456789012345",
detail::format(kFmt, tp, detail::femtoseconds(123456789012345), utc));
EXPECT_EQ(
"12:34:56.012345678901234",
detail::format(kFmt, tp, detail::femtoseconds(12345678901234), utc));
EXPECT_EQ(
"12:34:56.001234567890123",
detail::format(kFmt, tp, detail::femtoseconds(1234567890123), utc));
EXPECT_EQ(
"12:34:56.000123456789012",
detail::format(kFmt, tp, detail::femtoseconds(123456789012), utc));
EXPECT_EQ("12:34:56.000000000000123",
detail::format(kFmt, tp, detail::femtoseconds(123), utc));
EXPECT_EQ("12:34:56.000000000000012",
detail::format(kFmt, tp, detail::femtoseconds(12), utc));
EXPECT_EQ("12:34:56.000000000000001",
detail::format(kFmt, tp, detail::femtoseconds(1), utc));
}
TEST(Format, Basics) {
time_zone tz = utc_time_zone();
time_point<nanoseconds> tp = system_clock::from_time_t(0);
// Starts with a couple basic edge cases.
EXPECT_EQ("", format("", tp, tz));
EXPECT_EQ(" ", format(" ", tp, tz));
EXPECT_EQ(" ", format(" ", tp, tz));
EXPECT_EQ("xxx", format("xxx", tp, tz));
std::string big(128, 'x');
EXPECT_EQ(big, format(big, tp, tz));
// Cause the 1024-byte buffer to grow.
std::string bigger(100000, 'x');
EXPECT_EQ(bigger, format(bigger, tp, tz));
tp += hours(13) + minutes(4) + seconds(5);
tp += milliseconds(6) + microseconds(7) + nanoseconds(8);
EXPECT_EQ("1970-01-01", format("%Y-%m-%d", tp, tz));
EXPECT_EQ("13:04:05", format("%H:%M:%S", tp, tz));
EXPECT_EQ("13:04:05.006", format("%H:%M:%E3S", tp, tz));
EXPECT_EQ("13:04:05.006007", format("%H:%M:%E6S", tp, tz));
EXPECT_EQ("13:04:05.006007008", format("%H:%M:%E9S", tp, tz));
}
TEST(Format, PosixConversions) {
const time_zone tz = utc_time_zone();
auto tp = system_clock::from_time_t(0);
TestFormatSpecifier(tp, tz, "%d", "01");
TestFormatSpecifier(tp, tz, "%e", " 1"); // extension but internal support
TestFormatSpecifier(tp, tz, "%H", "00");
TestFormatSpecifier(tp, tz, "%I", "12");
TestFormatSpecifier(tp, tz, "%j", "001");
TestFormatSpecifier(tp, tz, "%m", "01");
TestFormatSpecifier(tp, tz, "%M", "00");
TestFormatSpecifier(tp, tz, "%S", "00");
TestFormatSpecifier(tp, tz, "%U", "00");
TestFormatSpecifier(tp, tz, "%w", "4"); // 4=Thursday
TestFormatSpecifier(tp, tz, "%W", "00");
TestFormatSpecifier(tp, tz, "%y", "70");
TestFormatSpecifier(tp, tz, "%Y", "1970");
TestFormatSpecifier(tp, tz, "%z", "+0000");
TestFormatSpecifier(tp, tz, "%Z", "UTC");
TestFormatSpecifier(tp, tz, "%%", "%");
#if defined(__linux__)
// SU/C99/TZ extensions
TestFormatSpecifier(tp, tz, "%C", "19");
TestFormatSpecifier(tp, tz, "%D", "01/01/70");
TestFormatSpecifier(tp, tz, "%F", "1970-01-01");
TestFormatSpecifier(tp, tz, "%g", "70");
TestFormatSpecifier(tp, tz, "%G", "1970");
TestFormatSpecifier(tp, tz, "%k", " 0");
TestFormatSpecifier(tp, tz, "%l", "12");
TestFormatSpecifier(tp, tz, "%n", "\n");
TestFormatSpecifier(tp, tz, "%R", "00:00");
TestFormatSpecifier(tp, tz, "%t", "\t");
TestFormatSpecifier(tp, tz, "%T", "00:00:00");
TestFormatSpecifier(tp, tz, "%u", "4"); // 4=Thursday
TestFormatSpecifier(tp, tz, "%V", "01");
TestFormatSpecifier(tp, tz, "%s", "0");
#endif
}
TEST(Format, LocaleSpecific) {
const time_zone tz = utc_time_zone();
auto tp = system_clock::from_time_t(0);
TestFormatSpecifier(tp, tz, "%a", "Thu");
TestFormatSpecifier(tp, tz, "%A", "Thursday");
TestFormatSpecifier(tp, tz, "%b", "Jan");
TestFormatSpecifier(tp, tz, "%B", "January");
// %c should at least produce the numeric year and time-of-day.
const std::string s = format("%c", tp, utc_time_zone());
EXPECT_THAT(s, HasSubstr("1970"));
EXPECT_THAT(s, HasSubstr("00:00:00"));
TestFormatSpecifier(tp, tz, "%p", "AM");
TestFormatSpecifier(tp, tz, "%x", "01/01/70");
TestFormatSpecifier(tp, tz, "%X", "00:00:00");
#if defined(__linux__)
// SU/C99/TZ extensions
TestFormatSpecifier(tp, tz, "%h", "Jan"); // Same as %b
TestFormatSpecifier(tp, tz, "%P", "am");
TestFormatSpecifier(tp, tz, "%r", "12:00:00 AM");
// Modified conversion specifiers %E_
TestFormatSpecifier(tp, tz, "%Ec", "Thu Jan 1 00:00:00 1970");
TestFormatSpecifier(tp, tz, "%EC", "19");
TestFormatSpecifier(tp, tz, "%Ex", "01/01/70");
TestFormatSpecifier(tp, tz, "%EX", "00:00:00");
TestFormatSpecifier(tp, tz, "%Ey", "70");
TestFormatSpecifier(tp, tz, "%EY", "1970");
// Modified conversion specifiers %O_
TestFormatSpecifier(tp, tz, "%Od", "01");
TestFormatSpecifier(tp, tz, "%Oe", " 1");
TestFormatSpecifier(tp, tz, "%OH", "00");
TestFormatSpecifier(tp, tz, "%OI", "12");
TestFormatSpecifier(tp, tz, "%Om", "01");
TestFormatSpecifier(tp, tz, "%OM", "00");
TestFormatSpecifier(tp, tz, "%OS", "00");
TestFormatSpecifier(tp, tz, "%Ou", "4"); // 4=Thursday
TestFormatSpecifier(tp, tz, "%OU", "00");
TestFormatSpecifier(tp, tz, "%OV", "01");
TestFormatSpecifier(tp, tz, "%Ow", "4"); // 4=Thursday
TestFormatSpecifier(tp, tz, "%OW", "00");
TestFormatSpecifier(tp, tz, "%Oy", "70");
#endif
}
TEST(Format, Escaping) {
const time_zone tz = utc_time_zone();
auto tp = system_clock::from_time_t(0);
TestFormatSpecifier(tp, tz, "%%", "%");
TestFormatSpecifier(tp, tz, "%%a", "%a");
TestFormatSpecifier(tp, tz, "%%b", "%b");
TestFormatSpecifier(tp, tz, "%%Ea", "%Ea");
TestFormatSpecifier(tp, tz, "%%Es", "%Es");
TestFormatSpecifier(tp, tz, "%%E3S", "%E3S");
TestFormatSpecifier(tp, tz, "%%OS", "%OS");
TestFormatSpecifier(tp, tz, "%%O3S", "%O3S");
// Multiple levels of escaping.
TestFormatSpecifier(tp, tz, "%%%Y", "%1970");
TestFormatSpecifier(tp, tz, "%%%E3S", "%00.000");
TestFormatSpecifier(tp, tz, "%%%%E3S", "%%E3S");
}
TEST(Format, ExtendedSeconds) {
const time_zone tz = utc_time_zone();
// No subseconds.
time_point<nanoseconds> tp = system_clock::from_time_t(0);
tp += seconds(5);
EXPECT_EQ("05", format("%E*S", tp, tz));
EXPECT_EQ("05", format("%E0S", tp, tz));
EXPECT_EQ("05.0", format("%E1S", tp, tz));
EXPECT_EQ("05.00", format("%E2S", tp, tz));
EXPECT_EQ("05.000", format("%E3S", tp, tz));
EXPECT_EQ("05.0000", format("%E4S", tp, tz));
EXPECT_EQ("05.00000", format("%E5S", tp, tz));
EXPECT_EQ("05.000000", format("%E6S", tp, tz));
EXPECT_EQ("05.0000000", format("%E7S", tp, tz));
EXPECT_EQ("05.00000000", format("%E8S", tp, tz));
EXPECT_EQ("05.000000000", format("%E9S", tp, tz));
EXPECT_EQ("05.0000000000", format("%E10S", tp, tz));
EXPECT_EQ("05.00000000000", format("%E11S", tp, tz));
EXPECT_EQ("05.000000000000", format("%E12S", tp, tz));
EXPECT_EQ("05.0000000000000", format("%E13S", tp, tz));
EXPECT_EQ("05.00000000000000", format("%E14S", tp, tz));
EXPECT_EQ("05.000000000000000", format("%E15S", tp, tz));
// With subseconds.
tp += milliseconds(6) + microseconds(7) + nanoseconds(8);
EXPECT_EQ("05.006007008", format("%E*S", tp, tz));
EXPECT_EQ("05", format("%E0S", tp, tz));
EXPECT_EQ("05.0", format("%E1S", tp, tz));
EXPECT_EQ("05.00", format("%E2S", tp, tz));
EXPECT_EQ("05.006", format("%E3S", tp, tz));
EXPECT_EQ("05.0060", format("%E4S", tp, tz));
EXPECT_EQ("05.00600", format("%E5S", tp, tz));
EXPECT_EQ("05.006007", format("%E6S", tp, tz));
EXPECT_EQ("05.0060070", format("%E7S", tp, tz));
EXPECT_EQ("05.00600700", format("%E8S", tp, tz));
EXPECT_EQ("05.006007008", format("%E9S", tp, tz));
EXPECT_EQ("05.0060070080", format("%E10S", tp, tz));
EXPECT_EQ("05.00600700800", format("%E11S", tp, tz));
EXPECT_EQ("05.006007008000", format("%E12S", tp, tz));
EXPECT_EQ("05.0060070080000", format("%E13S", tp, tz));
EXPECT_EQ("05.00600700800000", format("%E14S", tp, tz));
EXPECT_EQ("05.006007008000000", format("%E15S", tp, tz));
// Times before the Unix epoch.
tp = system_clock::from_time_t(0) + microseconds(-1);
EXPECT_EQ("1969-12-31 23:59:59.999999",
format("%Y-%m-%d %H:%M:%E*S", tp, tz));
// Here is a "%E*S" case we got wrong for a while. While the first
// instant below is correctly rendered as "...:07.333304", the second
// one used to appear as "...:07.33330499999999999".
tp = system_clock::from_time_t(0) + microseconds(1395024427333304);
EXPECT_EQ("2014-03-17 02:47:07.333304",
format("%Y-%m-%d %H:%M:%E*S", tp, tz));
tp += microseconds(1);
EXPECT_EQ("2014-03-17 02:47:07.333305",
format("%Y-%m-%d %H:%M:%E*S", tp, tz));
}
TEST(Format, ExtendedSubeconds) {
const time_zone tz = utc_time_zone();
// No subseconds.
time_point<nanoseconds> tp = system_clock::from_time_t(0);
tp += seconds(5);
EXPECT_EQ("0", format("%E*f", tp, tz));
EXPECT_EQ("", format("%E0f", tp, tz));
EXPECT_EQ("0", format("%E1f", tp, tz));
EXPECT_EQ("00", format("%E2f", tp, tz));
EXPECT_EQ("000", format("%E3f", tp, tz));
EXPECT_EQ("0000", format("%E4f", tp, tz));
EXPECT_EQ("00000", format("%E5f", tp, tz));
EXPECT_EQ("000000", format("%E6f", tp, tz));
EXPECT_EQ("0000000", format("%E7f", tp, tz));
EXPECT_EQ("00000000", format("%E8f", tp, tz));
EXPECT_EQ("000000000", format("%E9f", tp, tz));
EXPECT_EQ("0000000000", format("%E10f", tp, tz));
EXPECT_EQ("00000000000", format("%E11f", tp, tz));
EXPECT_EQ("000000000000", format("%E12f", tp, tz));
EXPECT_EQ("0000000000000", format("%E13f", tp, tz));
EXPECT_EQ("00000000000000", format("%E14f", tp, tz));
EXPECT_EQ("000000000000000", format("%E15f", tp, tz));
// With subseconds.
tp += milliseconds(6) + microseconds(7) + nanoseconds(8);
EXPECT_EQ("006007008", format("%E*f", tp, tz));
EXPECT_EQ("", format("%E0f", tp, tz));
EXPECT_EQ("0", format("%E1f", tp, tz));
EXPECT_EQ("00", format("%E2f", tp, tz));
EXPECT_EQ("006", format("%E3f", tp, tz));
EXPECT_EQ("0060", format("%E4f", tp, tz));
EXPECT_EQ("00600", format("%E5f", tp, tz));
EXPECT_EQ("006007", format("%E6f", tp, tz));
EXPECT_EQ("0060070", format("%E7f", tp, tz));
EXPECT_EQ("00600700", format("%E8f", tp, tz));
EXPECT_EQ("006007008", format("%E9f", tp, tz));
EXPECT_EQ("0060070080", format("%E10f", tp, tz));
EXPECT_EQ("00600700800", format("%E11f", tp, tz));
EXPECT_EQ("006007008000", format("%E12f", tp, tz));
EXPECT_EQ("0060070080000", format("%E13f", tp, tz));
EXPECT_EQ("00600700800000", format("%E14f", tp, tz));
EXPECT_EQ("006007008000000", format("%E15f", tp, tz));
// Times before the Unix epoch.
tp = system_clock::from_time_t(0) + microseconds(-1);
EXPECT_EQ("1969-12-31 23:59:59.999999",
format("%Y-%m-%d %H:%M:%S.%E*f", tp, tz));
// Here is a "%E*S" case we got wrong for a while. While the first
// instant below is correctly rendered as "...:07.333304", the second
// one used to appear as "...:07.33330499999999999".
tp = system_clock::from_time_t(0) + microseconds(1395024427333304);
EXPECT_EQ("2014-03-17 02:47:07.333304",
format("%Y-%m-%d %H:%M:%S.%E*f", tp, tz));
tp += microseconds(1);
EXPECT_EQ("2014-03-17 02:47:07.333305",
format("%Y-%m-%d %H:%M:%S.%E*f", tp, tz));
}
TEST(Format, CompareExtendSecondsVsSubseconds) {
const time_zone tz = utc_time_zone();
// This test case illustrates the differences/similarities between:
// fmt_A: %E<prec>S
// fmt_B: %S.%E<prec>f
auto fmt_A = [](const std::string& prec) { return "%E" + prec + "S"; };
auto fmt_B = [](const std::string& prec) { return "%S.%E" + prec + "f"; };
// No subseconds:
time_point<nanoseconds> tp = system_clock::from_time_t(0);
tp += seconds(5);
// ... %E*S and %S.%E*f are different.
EXPECT_EQ("05", format(fmt_A("*"), tp, tz));
EXPECT_EQ("05.0", format(fmt_B("*"), tp, tz));
// ... %E0S and %S.%E0f are different.
EXPECT_EQ("05", format(fmt_A("0"), tp, tz));
EXPECT_EQ("05.", format(fmt_B("0"), tp, tz));
// ... %E<prec>S and %S.%E<prec>f are the same for prec in [1:15].
for (int prec = 1; prec <= 15; ++prec) {
const std::string a = format(fmt_A(std::to_string(prec)), tp, tz);
const std::string b = format(fmt_B(std::to_string(prec)), tp, tz);
EXPECT_EQ(a, b) << "prec=" << prec;
}
// With subseconds:
// ... %E*S and %S.%E*f are the same.
tp += milliseconds(6) + microseconds(7) + nanoseconds(8);
EXPECT_EQ("05.006007008", format(fmt_A("*"), tp, tz));
EXPECT_EQ("05.006007008", format(fmt_B("*"), tp, tz));
// ... %E0S and %S.%E0f are different.
EXPECT_EQ("05", format(fmt_A("0"), tp, tz));
EXPECT_EQ("05.", format(fmt_B("0"), tp, tz));
// ... %E<prec>S and %S.%E<prec>f are the same for prec in [1:15].
for (int prec = 1; prec <= 15; ++prec) {
const std::string a = format(fmt_A(std::to_string(prec)), tp, tz);
const std::string b = format(fmt_B(std::to_string(prec)), tp, tz);
EXPECT_EQ(a, b) << "prec=" << prec;
}
}
TEST(Format, ExtendedOffset) {
auto tp = system_clock::from_time_t(0);
time_zone tz = utc_time_zone();
TestFormatSpecifier(tp, tz, "%Ez", "+00:00");
EXPECT_TRUE(load_time_zone("America/New_York", &tz));
TestFormatSpecifier(tp, tz, "%Ez", "-05:00");
EXPECT_TRUE(load_time_zone("America/Los_Angeles", &tz));
TestFormatSpecifier(tp, tz, "%Ez", "-08:00");
EXPECT_TRUE(load_time_zone("Australia/Sydney", &tz));
TestFormatSpecifier(tp, tz, "%Ez", "+10:00");
EXPECT_TRUE(load_time_zone("Africa/Monrovia", &tz));
// The true offset is -00:44:30 but %z only gives (truncated) minutes.
TestFormatSpecifier(tp, tz, "%z", "-0044");
TestFormatSpecifier(tp, tz, "%Ez", "-00:44");
}
TEST(Format, ExtendedSecondOffset) {
const time_zone utc = utc_time_zone();
time_point<seconds> tp;
time_zone tz;
EXPECT_TRUE(load_time_zone("America/New_York", &tz));
tp = convert(civil_second(1883, 11, 18, 16, 59, 59), utc);
if (tz.lookup(tp).offset == -5 * 60 * 60) {
// We're likely dealing with zoneinfo that doesn't support really old
// timestamps, so America/New_York never looks to be on local mean time.
} else {
TestFormatSpecifier(tp, tz, "%E*z", "-04:56:02");
TestFormatSpecifier(tp, tz, "%Ez", "-04:56");
}
tp += seconds(1);
TestFormatSpecifier(tp, tz, "%E*z", "-05:00:00");
EXPECT_TRUE(load_time_zone("Europe/Moscow", &tz));
tp = convert(civil_second(1919, 6, 30, 23, 59, 59), utc);
TestFormatSpecifier(tp, tz, "%E*z", "+04:31:19");
TestFormatSpecifier(tp, tz, "%Ez", "+04:31");
tp += seconds(1);
TestFormatSpecifier(tp, tz, "%E*z", "+04:00:00");
}
TEST(Format, ExtendedYears) {
const time_zone utc = utc_time_zone();
const char e4y_fmt[] = "%E4Y%m%d"; // no separators
// %E4Y zero-pads the year to produce at least 4 chars, including the sign.
auto tp = convert(civil_second(-999, 11, 27, 0, 0, 0), utc);
EXPECT_EQ("-9991127", format(e4y_fmt, tp, utc));
tp = convert(civil_second(-99, 11, 27, 0, 0, 0), utc);
EXPECT_EQ("-0991127", format(e4y_fmt, tp, utc));
tp = convert(civil_second(-9, 11, 27, 0, 0, 0), utc);
EXPECT_EQ("-0091127", format(e4y_fmt, tp, utc));
tp = convert(civil_second(-1, 11, 27, 0, 0, 0), utc);
EXPECT_EQ("-0011127", format(e4y_fmt, tp, utc));
tp = convert(civil_second(0, 11, 27, 0, 0, 0), utc);
EXPECT_EQ("00001127", format(e4y_fmt, tp, utc));
tp = convert(civil_second(1, 11, 27, 0, 0, 0), utc);
EXPECT_EQ("00011127", format(e4y_fmt, tp, utc));
tp = convert(civil_second(9, 11, 27, 0, 0, 0), utc);
EXPECT_EQ("00091127", format(e4y_fmt, tp, utc));
tp = convert(civil_second(99, 11, 27, 0, 0, 0), utc);
EXPECT_EQ("00991127", format(e4y_fmt, tp, utc));
tp = convert(civil_second(999, 11, 27, 0, 0, 0), utc);
EXPECT_EQ("09991127", format(e4y_fmt, tp, utc));
tp = convert(civil_second(9999, 11, 27, 0, 0, 0), utc);
EXPECT_EQ("99991127", format(e4y_fmt, tp, utc));
// When the year is outside [-999:9999], more than 4 chars are produced.
tp = convert(civil_second(-1000, 11, 27, 0, 0, 0), utc);
EXPECT_EQ("-10001127", format(e4y_fmt, tp, utc));
tp = convert(civil_second(10000, 11, 27, 0, 0, 0), utc);
EXPECT_EQ("100001127", format(e4y_fmt, tp, utc));
}
TEST(Format, RFC3339Format) {
time_zone tz;
EXPECT_TRUE(load_time_zone("America/Los_Angeles", &tz));
time_point<nanoseconds> tp =
convert(civil_second(1977, 6, 28, 9, 8, 7), tz);
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_full, tp, tz));
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
tp += milliseconds(100);
EXPECT_EQ("1977-06-28T09:08:07.1-07:00", format(RFC3339_full, tp, tz));
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
tp += milliseconds(20);
EXPECT_EQ("1977-06-28T09:08:07.12-07:00", format(RFC3339_full, tp, tz));
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
tp += milliseconds(3);
EXPECT_EQ("1977-06-28T09:08:07.123-07:00", format(RFC3339_full, tp, tz));
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
tp += microseconds(400);
EXPECT_EQ("1977-06-28T09:08:07.1234-07:00", format(RFC3339_full, tp, tz));
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
tp += microseconds(50);
EXPECT_EQ("1977-06-28T09:08:07.12345-07:00", format(RFC3339_full, tp, tz));
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
tp += microseconds(6);
EXPECT_EQ("1977-06-28T09:08:07.123456-07:00", format(RFC3339_full, tp, tz));
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
tp += nanoseconds(700);
EXPECT_EQ("1977-06-28T09:08:07.1234567-07:00", format(RFC3339_full, tp, tz));
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
tp += nanoseconds(80);
EXPECT_EQ("1977-06-28T09:08:07.12345678-07:00", format(RFC3339_full, tp, tz));
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
tp += nanoseconds(9);
EXPECT_EQ("1977-06-28T09:08:07.123456789-07:00",
format(RFC3339_full, tp, tz));
EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz));
}
TEST(Format, RFC1123Format) { // locale specific
time_zone tz;
EXPECT_TRUE(load_time_zone("America/Los_Angeles", &tz));
auto tp = convert(civil_second(1977, 6, 28, 9, 8, 7), tz);
EXPECT_EQ("Tue, 28 Jun 1977 09:08:07 -0700", format(RFC1123_full, tp, tz));
EXPECT_EQ("28 Jun 1977 09:08:07 -0700", format(RFC1123_no_wday, tp, tz));
}
//
// Testing parse()
//
TEST(Parse, TimePointResolution) {
const char kFmt[] = "%H:%M:%E*S";
const time_zone utc = utc_time_zone();
time_point<nanoseconds> tp_ns;
EXPECT_TRUE(parse(kFmt, "03:04:05.123456789", utc, &tp_ns));
EXPECT_EQ("03:04:05.123456789", format(kFmt, tp_ns, utc));
EXPECT_TRUE(parse(kFmt, "03:04:05.123456", utc, &tp_ns));
EXPECT_EQ("03:04:05.123456", format(kFmt, tp_ns, utc));
time_point<microseconds> tp_us;
EXPECT_TRUE(parse(kFmt, "03:04:05.123456789", utc, &tp_us));
EXPECT_EQ("03:04:05.123456", format(kFmt, tp_us, utc));
EXPECT_TRUE(parse(kFmt, "03:04:05.123456", utc, &tp_us));
EXPECT_EQ("03:04:05.123456", format(kFmt, tp_us, utc));
EXPECT_TRUE(parse(kFmt, "03:04:05.123", utc, &tp_us));
EXPECT_EQ("03:04:05.123", format(kFmt, tp_us, utc));
time_point<milliseconds> tp_ms;
EXPECT_TRUE(parse(kFmt, "03:04:05.123456", utc, &tp_ms));
EXPECT_EQ("03:04:05.123", format(kFmt, tp_ms, utc));
EXPECT_TRUE(parse(kFmt, "03:04:05.123", utc, &tp_ms));
EXPECT_EQ("03:04:05.123", format(kFmt, tp_ms, utc));
EXPECT_TRUE(parse(kFmt, "03:04:05", utc, &tp_ms));
EXPECT_EQ("03:04:05", format(kFmt, tp_ms, utc));
time_point<seconds> tp_s;
EXPECT_TRUE(parse(kFmt, "03:04:05.123", utc, &tp_s));
EXPECT_EQ("03:04:05", format(kFmt, tp_s, utc));
EXPECT_TRUE(parse(kFmt, "03:04:05", utc, &tp_s));
EXPECT_EQ("03:04:05", format(kFmt, tp_s, utc));
time_point<minutes> tp_m;
EXPECT_TRUE(parse(kFmt, "03:04:05", utc, &tp_m));
EXPECT_EQ("03:04:00", format(kFmt, tp_m, utc));
time_point<hours> tp_h;
EXPECT_TRUE(parse(kFmt, "03:04:05", utc, &tp_h));
EXPECT_EQ("03:00:00", format(kFmt, tp_h, utc));
}
TEST(Parse, TimePointExtendedResolution) {
const char kFmt[] = "%H:%M:%E*S";
const time_zone utc = utc_time_zone();
time_point<sys_seconds> tp;
detail::femtoseconds fs;
EXPECT_TRUE(detail::parse(kFmt, "12:34:56.123456789012345", utc, &tp, &fs));
EXPECT_EQ("12:34:56.123456789012345", detail::format(kFmt, tp, fs, utc));
EXPECT_TRUE(detail::parse(kFmt, "12:34:56.012345678901234", utc, &tp, &fs));
EXPECT_EQ("12:34:56.012345678901234", detail::format(kFmt, tp, fs, utc));
EXPECT_TRUE(detail::parse(kFmt, "12:34:56.001234567890123", utc, &tp, &fs));
EXPECT_EQ("12:34:56.001234567890123", detail::format(kFmt, tp, fs, utc));
EXPECT_TRUE(detail::parse(kFmt, "12:34:56.000000000000123", utc, &tp, &fs));
EXPECT_EQ("12:34:56.000000000000123", detail::format(kFmt, tp, fs, utc));
EXPECT_TRUE(detail::parse(kFmt, "12:34:56.000000000000012", utc, &tp, &fs));
EXPECT_EQ("12:34:56.000000000000012", detail::format(kFmt, tp, fs, utc));
EXPECT_TRUE(detail::parse(kFmt, "12:34:56.000000000000001", utc, &tp, &fs));
EXPECT_EQ("12:34:56.000000000000001", detail::format(kFmt, tp, fs, utc));
}
TEST(Parse, Basics) {
time_zone tz = utc_time_zone();
time_point<nanoseconds> tp = system_clock::from_time_t(1234567890);
// Simple edge cases.
EXPECT_TRUE(parse("", "", tz, &tp));
EXPECT_EQ(system_clock::from_time_t(0), tp); // everything defaulted
EXPECT_TRUE(parse(" ", " ", tz, &tp));
EXPECT_TRUE(parse(" ", " ", tz, &tp));
EXPECT_TRUE(parse("x", "x", tz, &tp));
EXPECT_TRUE(parse("xxx", "xxx", tz, &tp));
EXPECT_TRUE(
parse("%Y-%m-%d %H:%M:%S %z", "2013-06-28 19:08:09 -0800", tz, &tp));
ExpectTime(tp, tz, 2013, 6, 29, 3, 8, 9, 0, false, "UTC");
}
TEST(Parse, WithTimeZone) {
time_zone tz;
EXPECT_TRUE(load_time_zone("America/Los_Angeles", &tz));
time_point<nanoseconds> tp;
// We can parse a string without a UTC offset if we supply a timezone.
EXPECT_TRUE(parse("%Y-%m-%d %H:%M:%S", "2013-06-28 19:08:09", tz, &tp));
ExpectTime(tp, tz, 2013, 6, 28, 19, 8, 9, -7 * 60 * 60, true, "PDT");
// But the timezone is ignored when a UTC offset is present.
EXPECT_TRUE(parse("%Y-%m-%d %H:%M:%S %z", "2013-06-28 19:08:09 +0800",
utc_time_zone(), &tp));
ExpectTime(tp, tz, 2013, 6, 28, 19 - 8 - 7, 8, 9, -7 * 60 * 60, true, "PDT");
// Check a skipped time (a Spring DST transition). parse() returns
// the preferred-offset result, as defined for ConvertDateTime().
EXPECT_TRUE(parse("%Y-%m-%d %H:%M:%S", "2011-03-13 02:15:00", tz, &tp));
ExpectTime(tp, tz, 2011, 3, 13, 3, 15, 0, -7 * 60 * 60, true, "PDT");
// Check a repeated time (a Fall DST transition). parse() returns
// the preferred-offset result, as defined for ConvertDateTime().
EXPECT_TRUE(parse("%Y-%m-%d %H:%M:%S", "2011-11-06 01:15:00", tz, &tp));
ExpectTime(tp, tz, 2011, 11, 6, 1, 15, 0, -7 * 60 * 60, true, "PDT");
}
TEST(Parse, LeapSecond) {
time_zone tz;
EXPECT_TRUE(load_time_zone("America/Los_Angeles", &tz));
time_point<nanoseconds> tp;
// ":59" -> ":59"
EXPECT_TRUE(parse(RFC3339_full, "2013-06-28T07:08:59-08:00", tz, &tp));
ExpectTime(tp, tz, 2013, 6, 28, 8, 8, 59, -7 * 60 * 60, true, "PDT");
// ":59.5" -> ":59.5"
EXPECT_TRUE(parse(RFC3339_full, "2013-06-28T07:08:59.5-08:00", tz, &tp));
ExpectTime(tp, tz, 2013, 6, 28, 8, 8, 59, -7 * 60 * 60, true, "PDT");
// ":60" -> ":00"
EXPECT_TRUE(parse(RFC3339_full, "2013-06-28T07:08:60-08:00", tz, &tp));
ExpectTime(tp, tz, 2013, 6, 28, 8, 9, 0, -7 * 60 * 60, true, "PDT");
// ":60.5" -> ":00.0"
EXPECT_TRUE(parse(RFC3339_full, "2013-06-28T07:08:60.5-08:00", tz, &tp));
ExpectTime(tp, tz, 2013, 6, 28, 8, 9, 0, -7 * 60 * 60, true, "PDT");
// ":61" -> error
EXPECT_FALSE(parse(RFC3339_full, "2013-06-28T07:08:61-08:00", tz, &tp));
}
TEST(Parse, ErrorCases) {
const time_zone tz = utc_time_zone();
auto tp = system_clock::from_time_t(0);
// Illegal trailing data.
EXPECT_FALSE(parse("%S", "123", tz, &tp));
// Can't parse an illegal format specifier.
EXPECT_FALSE(parse("%Q", "x", tz, &tp));
// Fails because of trailing, unparsed data "blah".
EXPECT_FALSE(parse("%m-%d", "2-3 blah", tz, &tp));
// Trailing whitespace is allowed.
EXPECT_TRUE(parse("%m-%d", "2-3 ", tz, &tp));
EXPECT_EQ(2, convert(tp, utc_time_zone()).month());
EXPECT_EQ(3, convert(tp, utc_time_zone()).day());
// Feb 31 requires normalization.
EXPECT_FALSE(parse("%m-%d", "2-31", tz, &tp));
// Check that we cannot have spaces in UTC offsets.
EXPECT_TRUE(parse("%z", "-0203", tz, &tp));
EXPECT_FALSE(parse("%z", "- 2 3", tz, &tp));
EXPECT_TRUE(parse("%Ez", "-02:03", tz, &tp));
EXPECT_FALSE(parse("%Ez", "- 2: 3", tz, &tp));
// Check that we reject other malformed UTC offsets.
EXPECT_FALSE(parse("%Ez", "+-08:00", tz, &tp));
EXPECT_FALSE(parse("%Ez", "-+08:00", tz, &tp));
// Check that we do not accept "-0" in fields that allow zero.
EXPECT_FALSE(parse("%Y", "-0", tz, &tp));
EXPECT_FALSE(parse("%E4Y", "-0", tz, &tp));
EXPECT_FALSE(parse("%H", "-0", tz, &tp));
EXPECT_FALSE(parse("%M", "-0", tz, &tp));
EXPECT_FALSE(parse("%S", "-0", tz, &tp));
EXPECT_FALSE(parse("%z", "+-000", tz, &tp));
EXPECT_FALSE(parse("%Ez", "+-0:00", tz, &tp));
EXPECT_FALSE(parse("%z", "-00-0", tz, &tp));
EXPECT_FALSE(parse("%Ez", "-00:-0", tz, &tp));
}
TEST(Parse, PosixConversions) {
time_zone tz = utc_time_zone();
auto tp = system_clock::from_time_t(0);
const auto reset = convert(civil_second(1977, 6, 28, 9, 8, 7), tz);
tp = reset;
EXPECT_TRUE(parse("%d", "15", tz, &tp));
EXPECT_EQ(15, convert(tp, tz).day());
// %e is an extension, but is supported internally.
tp = reset;
EXPECT_TRUE(parse("%e", "15", tz, &tp));
EXPECT_EQ(15, convert(tp, tz).day()); // Equivalent to %d
tp = reset;
EXPECT_TRUE(parse("%H", "17", tz, &tp));
EXPECT_EQ(17, convert(tp, tz).hour());
tp = reset;
EXPECT_TRUE(parse("%I", "5", tz, &tp));
EXPECT_EQ(5, convert(tp, tz).hour());
// %j is parsed but ignored.
EXPECT_TRUE(parse("%j", "32", tz, &tp));
tp = reset;
EXPECT_TRUE(parse("%m", "11", tz, &tp));
EXPECT_EQ(11, convert(tp, tz).month());
tp = reset;
EXPECT_TRUE(parse("%M", "33", tz, &tp));
EXPECT_EQ(33, convert(tp, tz).minute());
tp = reset;
EXPECT_TRUE(parse("%S", "55", tz, &tp));
EXPECT_EQ(55, convert(tp, tz).second());
// %U is parsed but ignored.
EXPECT_TRUE(parse("%U", "15", tz, &tp));
// %w is parsed but ignored.
EXPECT_TRUE(parse("%w", "2", tz, &tp));
// %W is parsed but ignored.
EXPECT_TRUE(parse("%W", "22", tz, &tp));
tp = reset;
EXPECT_TRUE(parse("%y", "04", tz, &tp));
EXPECT_EQ(2004, convert(tp, tz).year());
tp = reset;
EXPECT_TRUE(parse("%Y", "2004", tz, &tp));
EXPECT_EQ(2004, convert(tp, tz).year());
EXPECT_TRUE(parse("%%", "%", tz, &tp));
#if defined(__linux__)
// SU/C99/TZ extensions
// Because we handle each (non-internal) specifier in a separate call
// to strptime(), there is no way to group %C and %y together. So we
// just skip the %C/%y case.
#if 0
tp = reset;
EXPECT_TRUE(parse("%C %y", "20 04", tz, &tp));
EXPECT_EQ(2004, convert(tp, tz).year());
#endif
tp = reset;
EXPECT_TRUE(parse("%D", "02/03/04", tz, &tp));
EXPECT_EQ(2, convert(tp, tz).month());
EXPECT_EQ(3, convert(tp, tz).day());
EXPECT_EQ(2004, convert(tp, tz).year());
EXPECT_TRUE(parse("%n", "\n", tz, &tp));
tp = reset;
EXPECT_TRUE(parse("%R", "03:44", tz, &tp));
EXPECT_EQ(3, convert(tp, tz).hour());
EXPECT_EQ(44, convert(tp, tz).minute());
EXPECT_TRUE(parse("%t", "\t\v\f\n\r ", tz, &tp));
tp = reset;
EXPECT_TRUE(parse("%T", "03:44:55", tz, &tp));
EXPECT_EQ(3, convert(tp, tz).hour());
EXPECT_EQ(44, convert(tp, tz).minute());
EXPECT_EQ(55, convert(tp, tz).second());
tp = reset;
EXPECT_TRUE(parse("%s", "1234567890", tz, &tp));
EXPECT_EQ(system_clock::from_time_t(1234567890), tp);
// %s conversion, like %z/%Ez, pays no heed to the optional zone.
time_zone lax;
EXPECT_TRUE(load_time_zone("America/Los_Angeles", &lax));
tp = reset;
EXPECT_TRUE(parse("%s", "1234567890", lax, &tp));
EXPECT_EQ(system_clock::from_time_t(1234567890), tp);
// This is most important when the time has the same YMDhms
// breakdown in the zone as some other time. For example, ...
// 1414917000 in US/Pacific -> Sun Nov 2 01:30:00 2014 (PDT)
// 1414920600 in US/Pacific -> Sun Nov 2 01:30:00 2014 (PST)
tp = reset;
EXPECT_TRUE(parse("%s", "1414917000", lax, &tp));
EXPECT_EQ(system_clock::from_time_t(1414917000), tp);
tp = reset;
EXPECT_TRUE(parse("%s", "1414920600", lax, &tp));
EXPECT_EQ(system_clock::from_time_t(1414920600), tp);
#endif
}
TEST(Parse, LocaleSpecific) {
time_zone tz = utc_time_zone();
auto tp = system_clock::from_time_t(0);
const auto reset = convert(civil_second(1977, 6, 28, 9, 8, 7), tz);
// %a is parsed but ignored.
EXPECT_TRUE(parse("%a", "Mon", tz, &tp));
// %A is parsed but ignored.
EXPECT_TRUE(parse("%A", "Monday", tz, &tp));
tp = reset;
EXPECT_TRUE(parse("%b", "Feb", tz, &tp));
EXPECT_EQ(2, convert(tp, tz).month());
tp = reset;
EXPECT_TRUE(parse("%B", "February", tz, &tp));
EXPECT_EQ(2, convert(tp, tz).month());
// %p is parsed but ignored if it's alone. But it's used with %I.
EXPECT_TRUE(parse("%p", "AM", tz, &tp));
tp = reset;
EXPECT_TRUE(parse("%I %p", "5 PM", tz, &tp));
EXPECT_EQ(17, convert(tp, tz).hour());
tp = reset;
EXPECT_TRUE(parse("%x", "02/03/04", tz, &tp));
if (convert(tp, tz).month() == 2) {
EXPECT_EQ(3, convert(tp, tz).day());
} else {
EXPECT_EQ(2, convert(tp, tz).day());
EXPECT_EQ(3, convert(tp, tz).month());
}
EXPECT_EQ(2004, convert(tp, tz).year());
tp = reset;
EXPECT_TRUE(parse("%X", "15:44:55", tz, &tp));
EXPECT_EQ(15, convert(tp, tz).hour());
EXPECT_EQ(44, convert(tp, tz).minute());
EXPECT_EQ(55, convert(tp, tz).second());
#if defined(__linux__)
// SU/C99/TZ extensions
tp = reset;
EXPECT_TRUE(parse("%h", "Feb", tz, &tp));
EXPECT_EQ(2, convert(tp, tz).month()); // Equivalent to %b
tp = reset;
EXPECT_TRUE(parse("%l %p", "5 PM", tz, &tp));
EXPECT_EQ(17, convert(tp, tz).hour());
tp = reset;
EXPECT_TRUE(parse("%r", "03:44:55 PM", tz, &tp));
EXPECT_EQ(15, convert(tp, tz).hour());
EXPECT_EQ(44, convert(tp, tz).minute());
EXPECT_EQ(55, convert(tp, tz).second());
tp = reset;
EXPECT_TRUE(parse("%Ec", "Tue Nov 19 05:06:07 2013", tz, &tp));
EXPECT_EQ(convert(civil_second(2013, 11, 19, 5, 6, 7), tz), tp);
// Modified conversion specifiers %E_
tp = reset;
EXPECT_TRUE(parse("%Ex", "02/03/04", tz, &tp));
EXPECT_EQ(2, convert(tp, tz).month());
EXPECT_EQ(3, convert(tp, tz).day());
EXPECT_EQ(2004, convert(tp, tz).year());
tp = reset;
EXPECT_TRUE(parse("%EX", "15:44:55", tz, &tp));
EXPECT_EQ(15, convert(tp, tz).hour());
EXPECT_EQ(44, convert(tp, tz).minute());
EXPECT_EQ(55, convert(tp, tz).second());
// %Ey, the year offset from %EC, doesn't really make sense alone as there
// is no way to represent it in tm_year (%EC is not simply the century).
// Yet, because we handle each (non-internal) specifier in a separate call
// to strptime(), there is no way to group %EC and %Ey either. So we just
// skip the %EC and %Ey cases.
tp = reset;
EXPECT_TRUE(parse("%EY", "2004", tz, &tp));
EXPECT_EQ(2004, convert(tp, tz).year());
// Modified conversion specifiers %O_
tp = reset;
EXPECT_TRUE(parse("%Od", "15", tz, &tp));
EXPECT_EQ(15, convert(tp, tz).day());
tp = reset;
EXPECT_TRUE(parse("%Oe", "15", tz, &tp));
EXPECT_EQ(15, convert(tp, tz).day()); // Equivalent to %d
tp = reset;
EXPECT_TRUE(parse("%OH", "17", tz, &tp));
EXPECT_EQ(17, convert(tp, tz).hour());
tp = reset;
EXPECT_TRUE(parse("%OI", "5", tz, &tp));
EXPECT_EQ(5, convert(tp, tz).hour());
tp = reset;
EXPECT_TRUE(parse("%Om", "11", tz, &tp));
EXPECT_EQ(11, convert(tp, tz).month());
tp = reset;
EXPECT_TRUE(parse("%OM", "33", tz, &tp));
EXPECT_EQ(33, convert(tp, tz).minute());
tp = reset;
EXPECT_TRUE(parse("%OS", "55", tz, &tp));
EXPECT_EQ(55, convert(tp, tz).second());
// %OU is parsed but ignored.
EXPECT_TRUE(parse("%OU", "15", tz, &tp));
// %Ow is parsed but ignored.
EXPECT_TRUE(parse("%Ow", "2", tz, &tp));
// %OW is parsed but ignored.
EXPECT_TRUE(parse("%OW", "22", tz, &tp));
tp = reset;
EXPECT_TRUE(parse("%Oy", "04", tz, &tp));
EXPECT_EQ(2004, convert(tp, tz).year());
#endif
}
TEST(Parse, ExtendedSeconds) {
const time_zone tz = utc_time_zone();
const time_point<nanoseconds> unix_epoch = system_clock::from_time_t(0);
// All %E<prec>S cases are treated the same as %E*S on input.
auto precisions = {"*", "0", "1", "2", "3", "4", "5", "6", "7",
"8", "9", "10", "11", "12", "13", "14", "15"};
for (const std::string& prec : precisions) {
const std::string fmt = "%E" + prec + "S";
SCOPED_TRACE(fmt);
time_point<nanoseconds> tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "5", tz, &tp));
EXPECT_EQ(unix_epoch + seconds(5), tp);
tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "05", tz, &tp));
EXPECT_EQ(unix_epoch + seconds(5), tp);
tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "05.0", tz, &tp));
EXPECT_EQ(unix_epoch + seconds(5), tp);
tp = unix_epoch;
EXPECT_TRUE(parse(fmt, "05.00", tz, &tp));
EXPECT_EQ(unix_epoch + seconds(5), tp);
tp = unix_epoch;