134 lines
4.6 KiB
C++
134 lines
4.6 KiB
C++
#include <stdio.h>
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#include <unicode/utypes.h>
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#include <unicode/unistr.h>
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#include <unicode/calendar.h>
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#include <unicode/ustdio.h>
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#include <unicode/datefmt.h>
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#include <unicode/locid.h>
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using namespace icu;
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int fail_count = 0;
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int pass_count = 0;
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void test_dst(const char *timezone,
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int year,
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int month,
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int day,
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int hour,
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int minute,
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int second,
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int std_offset_hours_expected,
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int dst_offset_hours_expected) {
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UErrorCode success = U_ZERO_ERROR;
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UnicodeString dateReturned, curTZNameEn, curTZNameJp;
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UDate dateTime;
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int32_t stdOffset, dstOffset;
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int std_offset_hours, dst_offset_hours;
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TimeZone *tz = TimeZone::createTimeZone(timezone);
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curTZNameEn = tz->getDisplayName(Locale::getEnglish(), curTZNameEn);
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u_printf("%s-name-english=%S\n",
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timezone,
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curTZNameEn.getTerminatedBuffer());
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curTZNameJp = tz->getDisplayName(Locale::getJapanese(), curTZNameJp);
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u_printf("%s-name-japanese=%S\n",
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timezone,
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curTZNameJp.getTerminatedBuffer());
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Calendar *calendar = Calendar::createInstance(success);
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calendar->adoptTimeZone(TimeZone::createTimeZone("UTC"));
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DateFormat *dt = DateFormat::createDateTimeInstance(
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DateFormat::LONG, DateFormat::LONG, Locale("ja", "JP"));
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dt->adoptTimeZone(TimeZone::createTimeZone("UTC"));
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// Set time in UTC, note that month is from 0-11.
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calendar->set(year, month, day, hour, minute, second);
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dateTime = calendar->getTime(success);
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dateReturned = "";
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dateReturned = dt->format(dateTime, dateReturned, success);
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printf("current-time-utc-%4d-%d-%d-%d-%d-%d=",
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year, month, day, hour, minute, second);
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u_printf("%S\n", dateReturned.getTerminatedBuffer());
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tz->getOffset(dateTime, true, stdOffset, dstOffset, success);
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std_offset_hours = stdOffset/(1000*60*60);
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dst_offset_hours = dstOffset/(1000*60*60);
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printf("%s-std-offset-%4d-%d-%d-%d-%d-%d=%d\n",
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timezone,
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year, month, day, hour, minute, second,
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std_offset_hours);
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if (std_offset_hours != std_offset_hours_expected) {
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printf("std_offset_hours=%d, std_offset_hours_expected=%d\n",
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std_offset_hours, std_offset_hours_expected);
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printf("FAIL\n");
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fail_count++;
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}
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else {
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printf("PASS\n");
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pass_count++;
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}
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printf("%s-dst-offset-%4d-%d-%d-%d-%d-%d=%d\n",
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timezone,
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year, month, day, hour, minute, second,
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dst_offset_hours);
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if (dst_offset_hours != dst_offset_hours_expected) {
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printf("dst_offset_hours=%d, dst_offset_hours_expected=%d\n",
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dst_offset_hours, dst_offset_hours_expected);
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printf("FAIL\n");
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fail_count++;
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}
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else {
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printf("PASS\n");
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pass_count++;
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}
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delete calendar;
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delete dt;
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delete tz;
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}
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int main(int argc, char** argv) {
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// zdump -c 2019,2020 -v Asia/Gaza
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// Asia/Gaza Fri Oct 25 20:59:59 2019 UT = Fri Oct 25 23:59:59 2019 EEST isdst=1 gmtoff=10800
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// Asia/Gaza Fri Oct 25 21:00:00 2019 UT = Fri Oct 25 23:00:00 2019 EET isdst=0 gmtoff=7200
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// timezone, year, month (0-11), day, hour, minute, second,
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// std offset expected, dst offset expected:
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test_dst("Asia/Gaza", 2019, 9, 25, 20, 59, 59, 2, 1);
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// Why doesn’t this work with the exactly correct time?:
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test_dst("Asia/Gaza", 2019, 9, 25, 21, 0, 0, 2, 1); // wrong!
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test_dst("Asia/Gaza", 2019, 9, 25, 23, 0, 0, 2, 0);
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// Asia/Gaza Fri Oct 23 21:59:59 2020 UT = Sat Oct 24 00:59:59 2020 EEST isdst=1 gmtoff=10800
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// Asia/Gaza Fri Oct 23 22:00:00 2020 UT = Sat Oct 24 00:00:00 2020 EET isdst=0 gmtoff=7200
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test_dst("Asia/Gaza", 2020, 9, 23, 21, 59, 59, 2, 1);
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test_dst("Asia/Gaza", 2020, 9, 23, 22, 0, 0, 2, 1); // wrong!
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test_dst("Asia/Gaza", 2020, 9, 24, 22, 0, 0, 2, 0);
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// Asia/Gaza Thu Oct 28 21:59:59 2021 UT = Fri Oct 29 00:59:59 2021 EEST isdst=1 gmtoff=10800
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// Asia/Gaza Thu Oct 28 22:00:00 2021 UT = Fri Oct 29 00:00:00 2021 EET isdst=0 gmtoff=7200
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test_dst("Asia/Gaza", 2021, 9, 28, 21, 59, 59, 2, 1);
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test_dst("Asia/Gaza", 2021, 9, 29, 21, 59, 59, 2, 1); // wrong!
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test_dst("Asia/Gaza", 2021, 9, 30, 22, 0, 0, 2, 0);
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// Print summary and exit with the number of failed test or
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// exit with 0 if all tests passed.
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printf("Summary: %d tests failed, %d tests passed.\n",
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fail_count, pass_count);
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if (fail_count != 0) {
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printf("FAIL\n");
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exit(fail_count);
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}
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printf("PASS\n");
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exit(0);
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}
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