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t_parsedate.c revision 1.28
      1 /* $NetBSD: t_parsedate.c,v 1.28 2017/03/22 01:00:19 kre Exp $ */
      2 /*-
      3  * Copyright (c) 2010, 2015 The NetBSD Foundation, Inc.
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  *
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in
     14  *    the documentation and/or other materials provided with the
     15  *    distribution.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     19  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
     20  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
     21  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
     23  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     26  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
     27  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     28  * SUCH DAMAGE.
     29  */
     30 
     31 #include <sys/cdefs.h>
     32 __RCSID("$NetBSD: t_parsedate.c,v 1.28 2017/03/22 01:00:19 kre Exp $");
     33 
     34 #include <atf-c.h>
     35 #include <errno.h>
     36 #include <stdio.h>
     37 #include <stdlib.h>
     38 #include <time.h>
     39 #include <util.h>
     40 
     41 /*
     42  * ANY is used as a placeholder for values that do not need to be
     43  * checked.  The actual value is arbitrary.  We don't use -1
     44  * because some tests might want to use -1 as a literal value.
     45  */
     46 #define ANY -30215
     47 
     48 /* parsecheck --
     49  * call parsedate(), then call time_to_tm() on the result,
     50  * and check that year/month/day/hour/minute/second are as expected.
     51  *
     52  * time_to_tm should usually be localtime_r or gmtime_r.
     53  *
     54  * Don't check values specified as ANY.
     55  */
     56 static void
     57 parsecheck(const char *datestr, const time_t *reftime, const int *zoff,
     58 	struct tm * time_to_tm(const time_t *, struct tm *),
     59 	int year, int month, int day, int hour, int minute, int second)
     60 {
     61 	time_t t;
     62 	struct tm tm;
     63 	char argstr[128];
     64 
     65 	/*
     66 	 * printable version of the args.
     67 	 *
     68 	 * Note that printf("%.*d", 0, 0)) prints nothing at all,
     69 	 * while printf("%.*d", 1, val) prints the value as usual.
     70 	 */
     71 	snprintf(argstr, sizeof(argstr), "%s%s%s, %s%.*jd, %s%.*d",
     72 		/* NULL or \"<datestr>\" */
     73 		(datestr ? "\"" : ""),
     74 		(datestr ? datestr : "NULL"),
     75 		(datestr ? "\"" : ""),
     76 		/* NULL or *reftime */
     77 		(reftime ? "" : "NULL"),
     78 		(reftime ? 1 : 0),
     79 		(reftime ? (intmax_t)*reftime : (intmax_t)0),
     80 		/* NULL or *zoff */
     81 		(zoff ? "" : "NULL"),
     82 		(zoff ? 1 : 0),
     83 		(zoff ? *zoff : 0));
     84 
     85 	ATF_CHECK_MSG((t = parsedate(datestr, reftime, zoff)) != -1,
     86 	    "parsedate(%s) returned -1\n", argstr);
     87 	if (t == -1)
     88 		return;
     89 
     90 	ATF_CHECK(time_to_tm(&t, &tm) != NULL);
     91 	if (year != ANY)
     92 		ATF_CHECK_MSG(tm.tm_year + 1900 == year,
     93 		    "parsedate(%s) expected year %d got %d (+1900)\n",
     94 		    argstr, year, (int)tm.tm_year);
     95 	if (month != ANY)
     96 		ATF_CHECK_MSG(tm.tm_mon + 1 == month,
     97 		    "parsedate(%s) expected month %d got %d (+1)\n",
     98 		    argstr, month, (int)tm.tm_mon);
     99 	if (day != ANY)
    100 		ATF_CHECK_MSG(tm.tm_mday == day,
    101 		    "parsedate(%s) expected day %d got %d\n",
    102 		    argstr, day, (int)tm.tm_mday);
    103 	if (hour != ANY)
    104 		ATF_CHECK_MSG(tm.tm_hour == hour,
    105 		    "parsedate(%s) expected hour %d got %d\n",
    106 		    argstr, hour, (int)tm.tm_hour);
    107 	if (minute != ANY)
    108 		ATF_CHECK_MSG(tm.tm_min == minute,
    109 		    "parsedate(%s) expected minute %d got %d\n",
    110 		    argstr, minute, (int)tm.tm_min);
    111 	if (second != ANY)
    112 		ATF_CHECK_MSG(tm.tm_sec == second,
    113 		    "parsedate(%s) expected second %d got %d\n",
    114 		    argstr, second, (int)tm.tm_sec);
    115 }
    116 
    117 ATF_TC(dates);
    118 
    119 ATF_TC_HEAD(dates, tc)
    120 {
    121 	atf_tc_set_md_var(tc, "descr", "Test unambiguous dates"
    122 	    " (PR lib/44255)");
    123 }
    124 
    125 ATF_TC_BODY(dates, tc)
    126 {
    127 
    128 	parsecheck("9/10/69", NULL, NULL, localtime_r,
    129 		2069, 9, 10, 0, 0, 0); /* year < 70: add 2000 */
    130 	parsecheck("9/10/70", NULL, NULL, localtime_r,
    131 		1970, 9, 10, 0, 0, 0); /* 70 <= year < 100: add 1900 */
    132 	parsecheck("69-09-10", NULL, NULL, localtime_r,
    133 		69, 9, 10, 0, 0, 0); /* ISO8601 year remains unchanged */
    134 	parsecheck("70-09-10", NULL, NULL, localtime_r,
    135 		70, 9, 10, 0, 0, 0); /* ISO8601 year remains unchanged */
    136 	parsecheck("2006-11-17", NULL, NULL, localtime_r,
    137 		2006, 11, 17, 0, 0, 0);
    138 	parsecheck("10/1/2000", NULL, NULL, localtime_r,
    139 		2000, 10, 1, 0, 0, 0); /* month/day/year */
    140 	parsecheck("20 Jun 1994", NULL, NULL, localtime_r,
    141 		1994, 6, 20, 0, 0, 0);
    142 	parsecheck("97 September 2", NULL, NULL, localtime_r,
    143 		1997, 9, 2, 0, 0, 0);
    144 	parsecheck("23jun2001", NULL, NULL, localtime_r,
    145 		2001, 6, 23, 0, 0, 0);
    146 	parsecheck("1-sep-06", NULL, NULL, localtime_r,
    147 		2006, 9, 1, 0, 0, 0);
    148 	parsecheck("1/11", NULL, NULL, localtime_r,
    149 		ANY, 1, 11, 0, 0, 0); /* month/day */
    150 	parsecheck("1500-01-02", NULL, NULL, localtime_r,
    151 		1500, 1, 2, 0, 0, 0);
    152 	parsecheck("9999-12-21", NULL, NULL, localtime_r,
    153 		9999, 12, 21, 0, 0, 0);
    154 	parsecheck("2015.12.07.08.07.35", NULL, NULL, localtime_r,
    155 		2015, 12, 7, 8, 7, 35);
    156 }
    157 
    158 ATF_TC(times);
    159 
    160 ATF_TC_HEAD(times, tc)
    161 {
    162 	atf_tc_set_md_var(tc, "descr", "Test times"
    163 	    " (PR lib/44255)");
    164 }
    165 
    166 ATF_TC_BODY(times, tc)
    167 {
    168 
    169 	parsecheck("10:01", NULL, NULL, localtime_r,
    170 		ANY, ANY, ANY, 10, 1, 0);
    171 	parsecheck("10:12pm", NULL, NULL, localtime_r,
    172 		ANY, ANY, ANY, 22, 12, 0);
    173 	parsecheck("12:11:01.000012", NULL, NULL, localtime_r,
    174 		ANY, ANY, ANY, 12, 11, 1);
    175 	parsecheck("12:21-0500", NULL, NULL, gmtime_r,
    176 		ANY, ANY, ANY, 12+5, 21, 0);
    177 	/* numeric zones not permitted with am/pm ... */
    178 	parsecheck("7 a.m. ICT", NULL, NULL, gmtime_r,
    179 		ANY, ANY, ANY, 7-7, 0, 0);
    180 	parsecheck("midnight", NULL, NULL, localtime_r,
    181 		ANY, ANY, ANY, 0, 0, 0);
    182 	parsecheck("mn", NULL, NULL, localtime_r,
    183 		ANY, ANY, ANY, 0, 0, 0);
    184 	parsecheck("noon", NULL, NULL, localtime_r,
    185 		ANY, ANY, ANY, 12, 0, 0);
    186 
    187 	/*
    188 	 * The following tests used to trigger the bug from PR lib/52101
    189 	 * but that is fixed now.
    190 	 *
    191 	atf_tc_expect_fail("PR lib/52101");
    192 	 */
    193 
    194 	parsecheck("12:30 am", NULL, NULL, localtime_r,
    195 		ANY, ANY, ANY, 0, 30, 0);
    196 	parsecheck("12:30 pm", NULL, NULL, localtime_r,
    197 		ANY, ANY, ANY, 12, 30, 0);
    198 
    199 	/*
    200 	 * Technically, these are invalid, noon and midnight
    201 	 * are neither am, nor pm, but this is what people expect...
    202 	 */
    203 	parsecheck("12:00:00 am", NULL, NULL, localtime_r,
    204 		ANY, ANY, ANY, 0, 0, 0);
    205 	parsecheck("12:00:00 pm", NULL, NULL, localtime_r,
    206 		ANY, ANY, ANY, 12, 0, 0);
    207 	parsecheck("12am", NULL, NULL, localtime_r,
    208 		ANY, ANY, ANY, 0, 0, 0);
    209 	parsecheck("12pm", NULL, NULL, localtime_r,
    210 		ANY, ANY, ANY, 12, 0, 0);
    211 
    212 	/* end 52010 bug tests */
    213 }
    214 
    215 ATF_TC(dsttimes);
    216 
    217 ATF_TC_HEAD(dsttimes, tc)
    218 {
    219 	atf_tc_set_md_var(tc, "descr", "Test DST transition times"
    220 	    " (PR lib/47916)");
    221 }
    222 
    223 ATF_TC_BODY(dsttimes, tc)
    224 {
    225 	struct tm tm;
    226 	time_t t;
    227 	int tzoff;
    228 
    229 	putenv(__UNCONST("TZ=EST"));
    230 	tzset();
    231 	parsecheck("12:0", NULL, NULL, localtime_r,
    232 		ANY, ANY, ANY, 12, 0, 0);
    233 
    234 	putenv(__UNCONST("TZ=Asia/Tokyo"));
    235 	tzset();
    236 	parsecheck("12:0", NULL, NULL, localtime_r,
    237 		ANY, ANY, ANY, 12, 0, 0);
    238 
    239 	/*
    240 	 * When the effective local time is Tue Jul  9 13:21:53 BST 2013,
    241 	 * check mktime("14:00")
    242 	 */
    243 	putenv(__UNCONST("TZ=Europe/London"));
    244 	tzset();
    245 	tm = (struct tm){
    246 		.tm_year = 2013-1900, .tm_mon = 7-1, .tm_mday = 9,
    247 		.tm_hour = 13, .tm_min = 21, .tm_sec = 53,
    248 		.tm_isdst = 0 };
    249 	t = mktime(&tm);
    250 	ATF_CHECK(t != (time_t)-1);
    251 	parsecheck("14:00", &t, NULL, localtime_r,
    252 		2013, 7, 9, 14, 0, 0);
    253 	tzoff = -60; /* British Summer Time */
    254 	parsecheck("14:00", &t, &tzoff, localtime_r,
    255 		2013, 7, 9, 14, 0, 0);
    256 }
    257 
    258 ATF_TC(relative);
    259 
    260 ATF_TC_HEAD(relative, tc)
    261 {
    262 	atf_tc_set_md_var(tc, "descr", "Test relative items"
    263 	    " (PR lib/44255)");
    264 }
    265 
    266 ATF_TC_BODY(relative, tc)
    267 {
    268 	struct tm tm;
    269 	time_t now;
    270 
    271 #define REL_CHECK(s, now, tm) do {					\
    272 	time_t p, q;							\
    273 	char nb[30], pb[30], qb[30];					\
    274 	p = parsedate(s, &now, NULL);					\
    275 	q = mktime(&tm);						\
    276 	ATF_CHECK_EQ_MSG(p, q,						\
    277 	    "From %jd (%24.24s) using \"%s\", obtained %jd (%24.24s); expected %jd (%24.24s)", \
    278 	    (uintmax_t)now, ctime_r(&now, nb),				\
    279 	    s, (uintmax_t)p, ctime_r(&p, pb), (uintmax_t)q, 		\
    280 	    ctime_r(&q, qb));						\
    281     } while (/*CONSTCOND*/0)
    282 
    283 #define isleap(yr) (((yr) & 3) == 0 && (((yr) % 100) != 0 ||		\
    284 			((1900+(yr)) % 400) == 0))
    285 
    286 	ATF_CHECK(parsedate("-1 month", NULL, NULL) != -1);
    287 	ATF_CHECK(parsedate("last friday", NULL, NULL) != -1);
    288 	ATF_CHECK(parsedate("one week ago", NULL, NULL) != -1);
    289 	ATF_CHECK(parsedate("this thursday", NULL, NULL) != -1);
    290 	ATF_CHECK(parsedate("next sunday", NULL, NULL) != -1);
    291 	ATF_CHECK(parsedate("+2 years", NULL, NULL) != -1);
    292 
    293 	/*
    294 	 * Test relative to a number of fixed dates.  Avoid the
    295 	 * edges of the time_t range to avert under- or overflow
    296 	 * of the relative date, and use a prime step for maximum
    297 	 * coverage of different times of day/week/month/year.
    298 	 */
    299 	for (now = 0x00FFFFFF; now < 0xFF000000; now += 3777779) {
    300 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
    301 		tm.tm_mday--;
    302 		/* "yesterday" leaves time untouched */
    303 		tm.tm_isdst = -1;
    304 		REL_CHECK("yesterday", now, tm);
    305 
    306 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
    307 		tm.tm_mday++;
    308 		/* as does "tomorrow" */
    309 		tm.tm_isdst = -1;
    310 		REL_CHECK("tomorrow", now, tm);
    311 
    312 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
    313 		if (tm.tm_wday > 4)
    314 			tm.tm_mday += 7;
    315 		tm.tm_mday += 4 - tm.tm_wday;
    316 		/* if a day name is mentioned, it means midnight (by default) */
    317 		tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
    318 		tm.tm_isdst = -1;
    319 		REL_CHECK("this thursday", now, tm);
    320 
    321 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
    322 		tm.tm_mday += 14 - (tm.tm_wday ? tm.tm_wday : 7);
    323 		tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
    324 		tm.tm_isdst = -1;
    325 		REL_CHECK("next sunday", now, tm);
    326 
    327 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
    328 		if (tm.tm_wday <= 5)
    329 			tm.tm_mday -= 7;
    330 		tm.tm_mday += 5 - tm.tm_wday;
    331 		tm.tm_sec = tm.tm_min = 0;
    332 		tm.tm_hour = 16;
    333 		tm.tm_isdst = -1;
    334 		REL_CHECK("last friday 4 p.m.", now, tm);
    335 
    336 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
    337 		tm.tm_mday += 14;
    338 		if (tm.tm_wday > 3)
    339 			tm.tm_mday += 7;
    340 		tm.tm_mday += 3 - tm.tm_wday;
    341 		tm.tm_sec = tm.tm_min = 0;
    342 		tm.tm_hour = 3;
    343 		tm.tm_isdst = -1;
    344 		REL_CHECK("we fortnight 3 a.m.", now, tm);
    345 
    346 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
    347 		tm.tm_min -= 5;
    348 		tm.tm_isdst = -1;
    349 		REL_CHECK("5 minutes ago", now, tm);
    350 
    351 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
    352 		tm.tm_hour++;
    353 		tm.tm_min += 37;
    354 		tm.tm_isdst = -1;
    355 		REL_CHECK("97 minutes", now, tm);
    356 
    357 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
    358 		tm.tm_mon++;
    359 		if (tm.tm_mon == 1 &&
    360 		    tm.tm_mday > 28 + isleap(tm.tm_year))
    361 			tm.tm_mday = 28 + isleap(tm.tm_year);
    362 		else if ((tm.tm_mon == 3 || tm.tm_mon == 5 ||
    363 		    tm.tm_mon == 8 || tm.tm_mon == 10) && tm.tm_mday == 31)
    364 			tm.tm_mday = 30;
    365 		tm.tm_isdst = -1;
    366 		REL_CHECK("month", now, tm);
    367 
    368 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
    369 		tm.tm_mon += 2;		/* "next" means add 2 ... */
    370 		if (tm.tm_mon == 13 &&
    371 		    tm.tm_mday > 28 + isleap(tm.tm_year + 1))
    372 			tm.tm_mday = 28 + isleap(tm.tm_year + 1);
    373 		else if (tm.tm_mon == 8 && tm.tm_mday == 31)
    374 			tm.tm_mday = 30;
    375 		tm.tm_isdst = -1;
    376 		REL_CHECK("next month", now, tm);
    377 
    378 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
    379 		tm.tm_mon--;
    380 		if (tm.tm_mon == 1 &&
    381 		    tm.tm_mday > 28 + isleap(tm.tm_year))
    382 			tm.tm_mday = 28 + isleap(tm.tm_year);
    383 		else if ((tm.tm_mon == 3 || tm.tm_mon == 5 ||
    384 		    tm.tm_mon == 8 || tm.tm_mon == 10) && tm.tm_mday == 31)
    385 			tm.tm_mday = 30;
    386 		tm.tm_isdst = -1;
    387 		REL_CHECK("last month", now, tm);
    388 
    389 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
    390 		tm.tm_mon += 6;
    391 		if (tm.tm_mon == 13 &&
    392 		    tm.tm_mday > 28 + isleap(tm.tm_year + 1))
    393 			tm.tm_mday = 28 + isleap(tm.tm_year + 1);
    394 		else if ((tm.tm_mon == 15 || tm.tm_mon == 17 ||
    395 		    tm.tm_mon == 8 || tm.tm_mon == 10) && tm.tm_mday == 31)
    396 			tm.tm_mday = 30;
    397 		tm.tm_mday += 2;
    398 		tm.tm_isdst = -1;
    399 		REL_CHECK("+6 months 2 days", now, tm);
    400 
    401 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
    402 		tm.tm_mon -= 9;
    403 		if (tm.tm_mon == 1 && tm.tm_mday > 28 + isleap(tm.tm_year))
    404 			tm.tm_mday = 28 + isleap(tm.tm_year);
    405 		else if ((tm.tm_mon == -9 || tm.tm_mon == -7 ||
    406 		    tm.tm_mon == -2) && tm.tm_mday == 31)
    407 			tm.tm_mday = 30;
    408 		tm.tm_isdst = -1;
    409 		REL_CHECK("9 months ago", now, tm);
    410 
    411 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
    412 		if (tm.tm_wday <= 2)
    413 			tm.tm_mday -= 7;
    414 		tm.tm_mday += 2 - tm.tm_wday;
    415 		tm.tm_isdst = -1;
    416 		tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
    417 		REL_CHECK("1 week ago Tu", now, tm);
    418 
    419 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
    420 		tm.tm_isdst = -1;
    421 		tm.tm_mday++;
    422 		tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
    423 		REL_CHECK("midnight tomorrow", now, tm);
    424 
    425 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
    426 		tm.tm_isdst = -1;
    427 		tm.tm_mday++;
    428 		tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
    429 		REL_CHECK("tomorrow midnight", now, tm);
    430 
    431 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
    432 		tm.tm_isdst = -1;
    433 		tm.tm_mday++;
    434 		tm.tm_hour = 12;
    435 		tm.tm_min = tm.tm_sec = 0;
    436 		REL_CHECK("noon tomorrow", now, tm);
    437 
    438 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
    439 		if (tm.tm_wday > 2)
    440 			tm.tm_mday += 7;
    441 		tm.tm_mday += 2 - tm.tm_wday;
    442 		tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
    443 		tm.tm_isdst = -1;
    444 		REL_CHECK("midnight Tuesday", now, tm);
    445 
    446 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
    447 		if (tm.tm_wday > 2 + 1)
    448 			tm.tm_mday += 7;
    449 		tm.tm_mday += 2 - tm.tm_wday;
    450 		tm.tm_mday++;	/* xxx midnight --> the next day */
    451 		tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
    452 		tm.tm_isdst = -1;
    453 		REL_CHECK("Tuesday midnight", now, tm);
    454 	}
    455 }
    456 
    457 ATF_TC(atsecs);
    458 
    459 ATF_TC_HEAD(atsecs, tc)
    460 {
    461 	atf_tc_set_md_var(tc, "descr", "Test seconds past the epoch");
    462 }
    463 
    464 ATF_TC_BODY(atsecs, tc)
    465 {
    466 	int tzoff;
    467 
    468 	/* "@0" -> (time_t)0, regardless of timezone */
    469 	ATF_CHECK(parsedate("@0", NULL, NULL) == (time_t)0);
    470 	putenv(__UNCONST("TZ=Europe/Berlin"));
    471 	tzset();
    472 	ATF_CHECK(parsedate("@0", NULL, NULL) == (time_t)0);
    473 	putenv(__UNCONST("TZ=America/New_York"));
    474 	tzset();
    475 	ATF_CHECK(parsedate("@0", NULL, NULL) == (time_t)0);
    476 	tzoff = 0;
    477 	ATF_CHECK(parsedate("@0", NULL, &tzoff) == (time_t)0);
    478 	tzoff = 3600;
    479 	ATF_CHECK(parsedate("@0", NULL, &tzoff) == (time_t)0);
    480 	tzoff = -3600;
    481 	ATF_CHECK(parsedate("@0", NULL, &tzoff) == (time_t)0);
    482 
    483 	/* -1 or other negative numbers are not errors */
    484 	errno = 0;
    485 	ATF_CHECK(parsedate("@-1", NULL, &tzoff) == (time_t)-1 && errno == 0);
    486 	ATF_CHECK(parsedate("@-2", NULL, &tzoff) == (time_t)-2 && errno == 0);
    487 
    488 	/* junk is an error */
    489 	errno = 0;
    490 	ATF_CHECK(parsedate("@junk", NULL, NULL) == (time_t)-1 && errno != 0);
    491 }
    492 
    493 ATF_TC(zones);
    494 
    495 ATF_TC_HEAD(zones, tc)
    496 {
    497 	atf_tc_set_md_var(tc, "descr", "Test parsing dates with zones");
    498 }
    499 
    500 ATF_TC_BODY(zones, tc)
    501 {
    502 	parsecheck("2015-12-06 16:11:48 UTC", NULL, NULL, gmtime_r,
    503 		2015, 12, 6, 16, 11, 48);
    504 	parsecheck("2015-12-06 16:11:48 UT", NULL, NULL, gmtime_r,
    505 		2015, 12, 6, 16, 11, 48);
    506 	parsecheck("2015-12-06 16:11:48 GMT", NULL, NULL, gmtime_r,
    507 		2015, 12, 6, 16, 11, 48);
    508 	parsecheck("2015-12-06 16:11:48 +0000", NULL, NULL, gmtime_r,
    509 		2015, 12, 6, 16, 11, 48);
    510 
    511 	parsecheck("2015-12-06 16:11:48 -0500", NULL, NULL, gmtime_r,
    512 		2015, 12, 6, 21, 11, 48);
    513 	parsecheck("2015-12-06 16:11:48 EST", NULL, NULL, gmtime_r,
    514 		2015, 12, 6, 21, 11, 48);
    515 	parsecheck("2015-12-06 16:11:48 EDT", NULL, NULL, gmtime_r,
    516 		2015, 12, 6, 20, 11, 48);
    517 	parsecheck("2015-12-06 16:11:48 +0500", NULL, NULL, gmtime_r,
    518 		2015, 12, 6, 11, 11, 48);
    519 
    520 	parsecheck("2015-12-06 16:11:48 +1000", NULL, NULL, gmtime_r,
    521 		2015, 12, 6, 6, 11, 48);
    522 	parsecheck("2015-12-06 16:11:48 AEST", NULL, NULL, gmtime_r,
    523 		2015, 12, 6, 6, 11, 48);
    524 	parsecheck("2015-12-06 16:11:48 -1000", NULL, NULL, gmtime_r,
    525 		2015, 12, 7, 2, 11, 48);
    526 	parsecheck("2015-12-06 16:11:48 HST", NULL, NULL, gmtime_r,
    527 		2015, 12, 7, 2, 11, 48);
    528 
    529 	parsecheck("2015-12-06 16:11:48 AWST", NULL, NULL, gmtime_r,
    530 		2015, 12, 6, 8, 11, 48);
    531 	parsecheck("2015-12-06 16:11:48 NZDT", NULL, NULL, gmtime_r,
    532 		2015, 12, 6, 3, 11, 48);
    533 
    534         parsecheck("Sun, 6 Dec 2015 09:43:16 -0500", NULL, NULL, gmtime_r,
    535 		2015, 12, 6, 14, 43, 16);
    536 	parsecheck("Mon Dec  7 03:13:31 ICT 2015", NULL, NULL, gmtime_r,
    537 		2015, 12, 6, 20, 13, 31);
    538 	/* the day name is ignored when a day of month (etc) is given... */
    539 	parsecheck("Sat Dec  7 03:13:31 ICT 2015", NULL, NULL, gmtime_r,
    540 		2015, 12, 6, 20, 13, 31);
    541 
    542 
    543 	parsecheck("2015-12-06 12:00:00 IDLW", NULL, NULL, gmtime_r,
    544 		2015, 12, 7, 0, 0, 0);
    545 	parsecheck("2015-12-06 12:00:00 IDLE", NULL, NULL, gmtime_r,
    546 		2015, 12, 6, 0, 0, 0);
    547 
    548 	parsecheck("2015-12-06 21:17:33 NFT", NULL, NULL, gmtime_r,
    549 		2015, 12, 7, 0, 47, 33);
    550 	parsecheck("2015-12-06 21:17:33 ACST", NULL, NULL, gmtime_r,
    551 		2015, 12, 6, 11, 47, 33);
    552 	parsecheck("2015-12-06 21:17:33 +0717", NULL, NULL, gmtime_r,
    553 		2015, 12, 6, 14, 0, 33);
    554 
    555 	parsecheck("2015-12-06 21:21:21 Z", NULL, NULL, gmtime_r,
    556 		2015, 12, 6, 21, 21, 21);
    557 	parsecheck("2015-12-06 21:21:21 A", NULL, NULL, gmtime_r,
    558 		2015, 12, 6, 22, 21, 21);
    559 	parsecheck("2015-12-06 21:21:21 G", NULL, NULL, gmtime_r,
    560 		2015, 12, 7, 4, 21, 21);
    561 	parsecheck("2015-12-06 21:21:21 M", NULL, NULL, gmtime_r,
    562 		2015, 12, 7, 9, 21, 21);
    563 	parsecheck("2015-12-06 21:21:21 N", NULL, NULL, gmtime_r,
    564 		2015, 12, 6, 20, 21, 21);
    565 	parsecheck("2015-12-06 21:21:21 T", NULL, NULL, gmtime_r,
    566 		2015, 12, 6, 14, 21, 21);
    567 	parsecheck("2015-12-06 21:21:21 Y", NULL, NULL, gmtime_r,
    568 		2015, 12, 6, 9, 21, 21);
    569 
    570 }
    571 
    572 ATF_TC(gibberish);
    573 
    574 ATF_TC_HEAD(gibberish, tc)
    575 {
    576 	atf_tc_set_md_var(tc, "descr", "Test (not) parsing nonsense");
    577 }
    578 
    579 ATF_TC_BODY(gibberish, tc)
    580 {
    581 	errno = 0;
    582 	ATF_CHECK(parsedate("invalid nonsense", NULL, NULL) == (time_t)-1
    583 	    && errno != 0);
    584 	errno = 0;
    585 	ATF_CHECK(parsedate("12th day of Christmas", NULL, NULL) == (time_t)-1
    586 	    && errno != 0);
    587 	errno = 0;
    588 	ATF_CHECK(parsedate("2015-31-07 15:00", NULL, NULL) == (time_t)-1
    589 	    && errno != 0);
    590 	errno = 0;
    591 	ATF_CHECK(parsedate("2015-02-29 10:01", NULL, NULL) == (time_t)-1
    592 	    && errno != 0);
    593 	errno = 0;
    594 	ATF_CHECK(parsedate("2015-12-06 24:01", NULL, NULL) == (time_t)-1
    595 	    && errno != 0);
    596 	errno = 0;
    597 	ATF_CHECK(parsedate("2015-12-06 14:61", NULL, NULL) == (time_t)-1
    598 	    && errno != 0);
    599 }
    600 
    601 ATF_TP_ADD_TCS(tp)
    602 {
    603 	ATF_TP_ADD_TC(tp, dates);
    604 	ATF_TP_ADD_TC(tp, times);
    605 	ATF_TP_ADD_TC(tp, dsttimes);
    606 	ATF_TP_ADD_TC(tp, relative);
    607 	ATF_TP_ADD_TC(tp, atsecs);
    608 	ATF_TP_ADD_TC(tp, zones);
    609 	ATF_TP_ADD_TC(tp, gibberish);
    610 
    611 	return atf_no_error();
    612 }
    613 
    614