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/*
* tests for mktime(), mkgmtime(), unix_to_iso8601() and iso8601_to_unix().
* mktime() is a libc function, why test it?
*
* This file is Copyright (c) 2010 by the GPSD project
* SPDX-License-Identifier: BSD-2-clause
*/
#include <limits.h>
#include <math.h> /* for fabs() */
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "../gps.h"
#include "../compiler.h"
#define TIME_T_BITS ((int)(sizeof(time_t) * CHAR_BIT))
#define TIME_T_MAX ((1ULL << (TIME_T_BITS - 1)) - 1)
static struct
{
struct tm t;
time_t result;
} tests[] = {
/* *INDENT-OFF* */
/* sec, min, h, md, mon, year, wd, yd, isdst, gmtoff, zone timestamp what */
{{ 0, 0, 0, 1, 0, 70, 0, 0, 0, 0, 0, }, 0 },
{{ 0, 0, 0, 1, 0, 70, 0, 0, 0, 0, 0, }, 0 }, /* lower limit */
{{ 7, 14, 3, 19, 0, 138, 0, 0, 0, 0, 0, }, 0x7fffffff }, /* upper limit */
{{ 0, 0, 12, 1, 0, 99, 0, 0, 0, 0, 0, }, 915192000 }, /* leap year */
{{ 0, 0, 12, 1, 1, 99, 0, 0, 0, 0, 0, }, 917870400 }, /* leap year */
{{ 0, 0, 12, 1, 2, 99, 0, 0, 0, 0, 0, }, 920289600 }, /* leap year */
{{ 0, 0, 12, 1, 8, 99, 0, 0, 0, 0, 0, }, 936187200 }, /* leap year */
{{ 0, 0, 12, 1, 0, 100, 0, 0, 0, 0, 0, }, 946728000 }, /* leap year */
{{ 0, 0, 12, 1, 1, 100, 0, 0, 0, 0, 0, }, 949406400 }, /* leap year */
{{ 0, 0, 12, 1, 2, 100, 0, 0, 0, 0, 0, }, 951912000 }, /* leap year */
{{ 0, 0, 12, 1, 8, 100, 0, 0, 0, 0, 0, }, 967809600 }, /* leap year */
{{ 0, 0, 12, 1, 0, 101, 0, 0, 0, 0, 0, }, 978350400 }, /* leap year */
{{ 0, 0, 12, 1, 1, 101, 0, 0, 0, 0, 0, }, 981028800 }, /* leap year */
{{ 0, 0, 12, 1, 2, 101, 0, 0, 0, 0, 0, }, 983448000 }, /* leap year */
{{ 0, 0, 12, 1, 8, 101, 0, 0, 0, 0, 0, }, 999345600 }, /* leap year */
{{ 0, 0, 12, 1, 0, 102, 0, 0, 0, 0, 0, }, 1009886400 }, /* leap year */
{{ 0, 0, 12, 1, 1, 102, 0, 0, 0, 0, 0, }, 1012564800 }, /* leap year */
{{ 0, 0, 12, 1, 2, 102, 0, 0, 0, 0, 0, }, 1014984000 }, /* leap year */
{{ 0, 0, 12, 1, 8, 102, 0, 0, 0, 0, 0, }, 1030881600 }, /* leap year */
{{ 0, 0, 12, 1, 0, 103, 0, 0, 0, 0, 0, }, 1041422400 }, /* leap year */
{{ 0, 0, 12, 1, 1, 103, 0, 0, 0, 0, 0, }, 1044100800 }, /* leap year */
{{ 0, 0, 12, 1, 2, 103, 0, 0, 0, 0, 0, }, 1046520000 }, /* leap year */
{{ 0, 0, 12, 1, 8, 103, 0, 0, 0, 0, 0, }, 1062417600 }, /* leap year */
{{ 0, 0, 12, 1, 0, 104, 0, 0, 0, 0, 0, }, 1072958400 }, /* leap year */
{{ 0, 0, 12, 1, 1, 104, 0, 0, 0, 0, 0, }, 1075636800 }, /* leap year */
{{ 0, 0, 12, 1, 2, 104, 0, 0, 0, 0, 0, }, 1078142400 }, /* leap year */
{{ 0, 0, 12, 1, 8, 104, 0, 0, 0, 0, 0, }, 1094040000 }, /* leap year */
{{ 0, 0, 12, 1, 0, 108, 0, 0, 0, 0, 0, }, 1199188800 }, /* leap year */
{{ 0, 0, 12, 1, 1, 108, 0, 0, 0, 0, 0, }, 1201867200 }, /* leap year */
{{ 0, 0, 12, 1, 2, 108, 0, 0, 0, 0, 0, }, 1204372800 }, /* leap year */
{{ 0, 0, 12, 1, 8, 108, 0, 0, 0, 0, 0, }, 1220270400 }, /* leap year */
{{ 59, 59, 23, 31, 12, 110, 0, 0, 0, 0, 0, }, 1296518399 }, /* year wrap */
{{ 0, 0, 0, 1, 0, 111, 0, 0, 0, 0, 0, }, 1293840000 }, /* year wrap */
{{ 59, 59, 23, 31, 12, 111, 0, 0, 0, 0, 0, }, 1328054399 }, /* year wrap */
{{ 0, 0, 0, 1, 0, 112, 0, 0, 0, 0, 0, }, 1325376000 }, /* year wrap */
{{ 59, 59, 23, 31, 12, 112, 0, 0, 0, 0, 0, }, 1359676799 }, /* year wrap */
{{ 0, 0, 0, 1, 0, 113, 0, 0, 0, 0, 0, }, 1356998400 }, /* year wrap */
{{ 59, 59, 23, 31, 0, 115, 0, 0, 0, 0, 0, }, 1422748799 }, /* month wrap */
{{ 0, 0, 0, 1, 1, 115, 0, 0, 0, 0, 0, }, 1422748800 }, /* month wrap */
{{ 59, 59, 23, 28, 1, 115, 0, 0, 0, 0, 0, }, 1425167999 }, /* month wrap */
{{ 0, 0, 0, 1, 2, 115, 0, 0, 0, 0, 0, }, 1425168000 }, /* month wrap */
{{ 59, 59, 23, 31, 2, 115, 0, 0, 0, 0, 0, }, 1427846399 }, /* month wrap */
{{ 0, 0, 0, 1, 3, 115, 0, 0, 0, 0, 0, }, 1427846400 }, /* month wrap */
{{ 59, 59, 23, 30, 3, 115, 0, 0, 0, 0, 0, }, 1430438399 }, /* month wrap */
{{ 0, 0, 0, 1, 4, 115, 0, 0, 0, 0, 0, }, 1430438400 }, /* month wrap */
{{ 59, 59, 23, 31, 4, 115, 0, 0, 0, 0, 0, }, 1433116799 }, /* month wrap */
{{ 0, 0, 0, 1, 5, 115, 0, 0, 0, 0, 0, }, 1433116800 }, /* month wrap */
{{ 59, 59, 23, 30, 5, 115, 0, 0, 0, 0, 0, }, 1435708799 }, /* month wrap */
{{ 0, 0, 0, 1, 6, 115, 0, 0, 0, 0, 0, }, 1435708800 }, /* month wrap */
{{ 59, 59, 23, 31, 6, 115, 0, 0, 0, 0, 0, }, 1438387199 }, /* month wrap */
{{ 0, 0, 0, 1, 7, 115, 0, 0, 0, 0, 0, }, 1438387200 }, /* month wrap */
{{ 59, 59, 23, 31, 7, 115, 0, 0, 0, 0, 0, }, 1441065599 }, /* month wrap */
{{ 0, 0, 0, 1, 8, 115, 0, 0, 0, 0, 0, }, 1441065600 }, /* month wrap */
{{ 59, 59, 23, 30, 8, 115, 0, 0, 0, 0, 0, }, 1443657599 }, /* month wrap */
{{ 0, 0, 0, 1, 9, 115, 0, 0, 0, 0, 0, }, 1443657600 }, /* month wrap */
{{ 59, 59, 23, 31, 9, 115, 0, 0, 0, 0, 0, }, 1446335999 }, /* month wrap */
{{ 0, 0, 0, 1, 10, 115, 0, 0, 0, 0, 0, }, 1446336000 }, /* month wrap */
{{ 59, 59, 23, 30, 10, 115, 0, 0, 0, 0, 0, }, 1448927999 }, /* month wrap */
{{ 0, 0, 0, 1, 11, 115, 0, 0, 0, 0, 0, }, 1448928000 }, /* month wrap */
{{ 59, 59, 23, 31, 11, 115, 0, 0, 0, 0, 0, }, 1451606399 }, /* month wrap */
{{ 0, 0, 0, 1, 0, 116, 0, 0, 0, 0, 0, }, 1451606400 }, /* month wrap */
/* *INDENT-ON* */
};
/* tests for unit_to_iso8601() */
static struct
{
timestamp_t unixtime; /* unix time */
char *iso8601; /* iso8601 result */
} tests1[] = {
/* time zero */
{(timestamp_t)0, "1970-01-01T00:00:00.000Z"},
/* before/after leap second end of 2008, notice no :60! */
{(timestamp_t)1230767999.01, "2008-12-31T23:59:59.010Z"},
{(timestamp_t)1230768000.02, "2009-01-01T00:00:00.020Z"},
/* test for rounding at %.3f */
{(timestamp_t)1541766896.999412, "2018-11-09T12:34:56.999Z"},
{(timestamp_t)1541766896.999499, "2018-11-09T12:34:56.999Z"},
{(timestamp_t)1541766896.999500, "2018-11-09T12:34:57.000Z"},
{(timestamp_t)1541766896.999501, "2018-11-09T12:34:57.000Z"},
/* the end of time: 2038 */
{(timestamp_t)2147483647.123456, "2038-01-19T03:14:07.123Z"},
{(timestamp_t)2147483648.123456, "2038-01-19T03:14:08.123Z"},
/* test the NaN case */
{(timestamp_t)NAN, "NaN"},
};
/* Skip test if value is out of time_t range */
static int check_range(const char *name, timestamp_t ts, const char *text)
{
if ((unsigned long long) ts > TIME_T_MAX) {
(void)printf("test_mktime: skipping %s for %s due to %d-bit time_t\n",
name, text, TIME_T_BITS);
return 1;
}
return 0;
}
int main(int argc UNUSED, char *argv[] UNUSED)
{
int i;
char tbuf[128];
bool failed = false;
timestamp_t ttime;
(void)setenv("TZ", "GMT", 1);
/* test mktime() */
for (i = 0; i < (int)(sizeof(tests) / sizeof(tests[0])); i++) {
time_t ts = mktime(&tests[i].t);
if (ts != tests[i].result) {
failed = true;
(void)strftime(tbuf, sizeof(tbuf), "%F %T", &tests[i].t);
(void)printf("test_mktime: mktime() test %2d failed.\n"
" Time returned from: %s should be %lu "
" (but was: %lu)\n",
i, tbuf, (unsigned long)tests[i].result,
(unsigned long)ts);
}
}
/* test mkgmtime() */
for (i = 0; i < (int)(sizeof(tests) / sizeof(tests[0])); i++) {
time_t ts = mkgmtime(&tests[i].t);
if (ts != tests[i].result) {
failed = true;
(void)strftime(tbuf, sizeof(tbuf), "%F %T", &tests[i].t);
(void)printf("test_mktime: mkgmtime() test %2d failed.\n"
" Time returned from: %s should be %lu "
" (but was: %lu)\n",
i, tbuf, (unsigned long)tests[i].result,
(unsigned long)ts);
}
}
/* test unix_to_iso8601() */
for (i = 0; i < (int)(sizeof(tests1) / sizeof(tests1[0])); i++) {
if (check_range("unix_to_iso8601()",
tests1[i].unixtime, tests1[i].iso8601)) {
continue;
}
unix_to_iso8601(tests1[i].unixtime, tbuf, sizeof(tbuf));
if (0 != strcmp(tests1[i].iso8601, tbuf)) {
failed = true;
(void)printf("test_mktime: unix_to_iso8601() test %f failed.\n"
" Got %s, s/b %s\n",
tests1[i].unixtime, tbuf, tests1[i].iso8601);
}
}
/* test iso8601_to_unix() */
for (i = 0; i < (int)(sizeof(tests1) / sizeof(tests1[0])); i++) {
if (check_range("iso8601_to_unix()",
tests1[i].unixtime, tests1[i].iso8601)) {
continue;
}
ttime = iso8601_to_unix(tests1[i].iso8601);
if (0.001 <= fabs(ttime - tests1[i].unixtime)) {
failed = true;
(void)printf("test_mktime: iso8601_to_unix() test %s failed.\n"
" Got %.3f, s/b %.3f\n",
tests1[i].iso8601, ttime, tests1[i].unixtime);
}
}
return (int)failed;
}
/* end */
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