xref: /netbsd-src/tests/lib/libutil/t_parsedate.c (revision 82d56013d7b633d116a93943de88e08335357a7c)
1 /* $NetBSD: t_parsedate.c,v 1.31 2020/10/19 15:06:49 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 1.31 2020/10/19 15:06:49 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("9/10/68", NULL, NULL, localtime_r,
129 		2068, 9, 10, 0, 0, 0); /* year < 69: add 2000 */
130 	parsecheck("9/10/69", NULL, NULL, localtime_r,
131 		1969, 9, 10, 0, 0, 0); /* 69 <= year < 100: add 1900 */
132 	parsecheck("68-09-10", NULL, NULL, localtime_r,
133 		68, 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 52101 bug tests */
213 
214 	parsecheck("12 noon", NULL, NULL, localtime_r,
215 		ANY, ANY, ANY, 12, 0, 0);
216 	parsecheck("12 midnight", NULL, NULL, localtime_r,
217 		ANY, ANY, ANY, 0, 0, 0);
218 	parsecheck("12 midday", NULL, NULL, localtime_r,	/* unlikely! */
219 		ANY, ANY, ANY, 12, 0, 0);
220 	parsecheck("12 mn", NULL, NULL, localtime_r,
221 		ANY, ANY, ANY, 0, 0, 0);
222 
223 	parsecheck("12:00 noon", NULL, NULL, localtime_r,
224 		ANY, ANY, ANY, 12, 0, 0);
225 	parsecheck("12:00 midnight", NULL, NULL, localtime_r,
226 		ANY, ANY, ANY, 0, 0, 0);
227 	parsecheck("12:00:00 noon", NULL, NULL, localtime_r,
228 		ANY, ANY, ANY, 12, 0, 0);
229 	parsecheck("12:00:00 midnight", NULL, NULL, localtime_r,
230 		ANY, ANY, ANY, 0, 0, 0);
231 }
232 
233 ATF_TC(dsttimes);
234 
235 ATF_TC_HEAD(dsttimes, tc)
236 {
237 	atf_tc_set_md_var(tc, "descr", "Test DST transition times"
238 	    " (PR lib/47916)");
239 }
240 
241 ATF_TC_BODY(dsttimes, tc)
242 {
243 	struct tm tm;
244 	time_t t;
245 	int tzoff;
246 
247 	putenv(__UNCONST("TZ=EST"));
248 	tzset();
249 	parsecheck("12:0", NULL, NULL, localtime_r,
250 		ANY, ANY, ANY, 12, 0, 0);
251 
252 	putenv(__UNCONST("TZ=Asia/Tokyo"));
253 	tzset();
254 	parsecheck("12:0", NULL, NULL, localtime_r,
255 		ANY, ANY, ANY, 12, 0, 0);
256 
257 	/*
258 	 * When the effective local time is Tue Jul  9 13:21:53 BST 2013,
259 	 * check mktime("14:00")
260 	 */
261 	putenv(__UNCONST("TZ=Europe/London"));
262 	tzset();
263 	tm = (struct tm){
264 		.tm_year = 2013-1900, .tm_mon = 7-1, .tm_mday = 9,
265 		.tm_hour = 13, .tm_min = 21, .tm_sec = 53,
266 		.tm_isdst = 0 };
267 	t = mktime(&tm);
268 	ATF_CHECK(t != (time_t)-1);
269 	parsecheck("14:00", &t, NULL, localtime_r,
270 		2013, 7, 9, 14, 0, 0);
271 	tzoff = -60; /* British Summer Time */
272 	parsecheck("14:00", &t, &tzoff, localtime_r,
273 		2013, 7, 9, 14, 0, 0);
274 }
275 
276 ATF_TC(relative);
277 
278 ATF_TC_HEAD(relative, tc)
279 {
280 	atf_tc_set_md_var(tc, "descr", "Test relative items"
281 	    " (PR lib/44255)");
282 }
283 
284 ATF_TC_BODY(relative, tc)
285 {
286 	struct tm tm;
287 	time_t now;
288 
289 #define REL_CHECK(s, now, tm) do {					\
290 	time_t p, q;							\
291 	char nb[30], pb[30], qb[30];					\
292 	p = parsedate(s, &now, NULL);					\
293 	q = mktime(&tm);						\
294 	ATF_CHECK_EQ_MSG(p, q,						\
295 	    "From %jd (%24.24s) using \"%s\", obtained %jd (%24.24s); expected %jd (%24.24s)", \
296 	    (uintmax_t)now, ctime_r(&now, nb),				\
297 	    s, (uintmax_t)p, ctime_r(&p, pb), (uintmax_t)q, 		\
298 	    ctime_r(&q, qb));						\
299     } while (/*CONSTCOND*/0)
300 
301 #define isleap(yr) (((yr) & 3) == 0 && (((yr) % 100) != 0 ||		\
302 			((1900+(yr)) % 400) == 0))
303 
304 	ATF_CHECK(parsedate("-1 month", NULL, NULL) != -1);
305 	ATF_CHECK(parsedate("last friday", NULL, NULL) != -1);
306 	ATF_CHECK(parsedate("one week ago", NULL, NULL) != -1);
307 	ATF_CHECK(parsedate("this thursday", NULL, NULL) != -1);
308 	ATF_CHECK(parsedate("next sunday", NULL, NULL) != -1);
309 	ATF_CHECK(parsedate("+2 years", NULL, NULL) != -1);
310 
311 	/*
312 	 * Test relative to a number of fixed dates.  Avoid the
313 	 * edges of the time_t range to avert under- or overflow
314 	 * of the relative date, and use a prime step for maximum
315 	 * coverage of different times of day/week/month/year.
316 	 */
317 	for (now = 0x00FFFFFF; now < 0xFF000000; now += 3777779) {
318 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
319 		tm.tm_mday--;
320 		/* "yesterday" leaves time untouched */
321 		tm.tm_isdst = -1;
322 		REL_CHECK("yesterday", now, tm);
323 
324 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
325 		tm.tm_mday++;
326 		/* as does "tomorrow" */
327 		tm.tm_isdst = -1;
328 		REL_CHECK("tomorrow", now, tm);
329 
330 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
331 		if (tm.tm_wday > 4)
332 			tm.tm_mday += 7;
333 		tm.tm_mday += 4 - tm.tm_wday;
334 		/* if a day name is mentioned, it means midnight (by default) */
335 		tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
336 		tm.tm_isdst = -1;
337 		REL_CHECK("this thursday", now, tm);
338 
339 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
340 		tm.tm_mday += 14 - (tm.tm_wday ? tm.tm_wday : 7);
341 		tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
342 		tm.tm_isdst = -1;
343 		REL_CHECK("next sunday", now, tm);
344 
345 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
346 		if (tm.tm_wday <= 5)
347 			tm.tm_mday -= 7;
348 		tm.tm_mday += 5 - tm.tm_wday;
349 		tm.tm_sec = tm.tm_min = 0;
350 		tm.tm_hour = 16;
351 		tm.tm_isdst = -1;
352 		REL_CHECK("last friday 4 p.m.", now, tm);
353 
354 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
355 		tm.tm_mday += 14;
356 		if (tm.tm_wday > 3)
357 			tm.tm_mday += 7;
358 		tm.tm_mday += 3 - tm.tm_wday;
359 		tm.tm_sec = tm.tm_min = 0;
360 		tm.tm_hour = 3;
361 		tm.tm_isdst = -1;
362 		REL_CHECK("we fortnight 3 a.m.", now, tm);
363 
364 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
365 		tm.tm_min -= 5;
366 		tm.tm_isdst = -1;
367 		REL_CHECK("5 minutes ago", now, tm);
368 
369 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
370 		tm.tm_hour++;
371 		tm.tm_min += 37;
372 		tm.tm_isdst = -1;
373 		REL_CHECK("97 minutes", now, tm);
374 
375 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
376 		tm.tm_mon++;
377 		if (tm.tm_mon == 1 &&
378 		    tm.tm_mday > 28 + isleap(tm.tm_year))
379 			tm.tm_mday = 28 + isleap(tm.tm_year);
380 		else if ((tm.tm_mon == 3 || tm.tm_mon == 5 ||
381 		    tm.tm_mon == 8 || tm.tm_mon == 10) && tm.tm_mday == 31)
382 			tm.tm_mday = 30;
383 		tm.tm_isdst = -1;
384 		REL_CHECK("month", now, tm);
385 
386 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
387 		tm.tm_mon += 2;		/* "next" means add 2 ... */
388 		if (tm.tm_mon == 13 &&
389 		    tm.tm_mday > 28 + isleap(tm.tm_year + 1))
390 			tm.tm_mday = 28 + isleap(tm.tm_year + 1);
391 		else if (tm.tm_mon == 8 && tm.tm_mday == 31)
392 			tm.tm_mday = 30;
393 		tm.tm_isdst = -1;
394 		REL_CHECK("next month", now, tm);
395 
396 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
397 		tm.tm_mon--;
398 		if (tm.tm_mon == 1 &&
399 		    tm.tm_mday > 28 + isleap(tm.tm_year))
400 			tm.tm_mday = 28 + isleap(tm.tm_year);
401 		else if ((tm.tm_mon == 3 || tm.tm_mon == 5 ||
402 		    tm.tm_mon == 8 || tm.tm_mon == 10) && tm.tm_mday == 31)
403 			tm.tm_mday = 30;
404 		tm.tm_isdst = -1;
405 		REL_CHECK("last month", now, tm);
406 
407 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
408 		tm.tm_mon += 6;
409 		if (tm.tm_mon == 13 &&
410 		    tm.tm_mday > 28 + isleap(tm.tm_year + 1))
411 			tm.tm_mday = 28 + isleap(tm.tm_year + 1);
412 		else if ((tm.tm_mon == 15 || tm.tm_mon == 17 ||
413 		    tm.tm_mon == 8 || tm.tm_mon == 10) && tm.tm_mday == 31)
414 			tm.tm_mday = 30;
415 		tm.tm_mday += 2;
416 		tm.tm_isdst = -1;
417 		REL_CHECK("+6 months 2 days", now, tm);
418 
419 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
420 		tm.tm_mon -= 9;
421 		if (tm.tm_mon == 1 && tm.tm_mday > 28 + isleap(tm.tm_year))
422 			tm.tm_mday = 28 + isleap(tm.tm_year);
423 		else if ((tm.tm_mon == -9 || tm.tm_mon == -7 ||
424 		    tm.tm_mon == -2) && tm.tm_mday == 31)
425 			tm.tm_mday = 30;
426 		tm.tm_isdst = -1;
427 		REL_CHECK("9 months ago", now, tm);
428 
429 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
430 		if (tm.tm_wday <= 2)
431 			tm.tm_mday -= 7;
432 		tm.tm_mday += 2 - tm.tm_wday;
433 		tm.tm_isdst = -1;
434 		tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
435 		REL_CHECK("1 week ago Tu", now, tm);
436 
437 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
438 		tm.tm_isdst = -1;
439 		tm.tm_mday++;
440 		tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
441 		REL_CHECK("midnight tomorrow", now, tm);
442 
443 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
444 		tm.tm_isdst = -1;
445 		tm.tm_mday++;
446 		tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
447 		REL_CHECK("tomorrow midnight", now, tm);
448 
449 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
450 		tm.tm_isdst = -1;
451 		tm.tm_mday++;
452 		tm.tm_hour = 12;
453 		tm.tm_min = tm.tm_sec = 0;
454 		REL_CHECK("noon tomorrow", now, tm);
455 
456 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
457 		if (tm.tm_wday > 2)
458 			tm.tm_mday += 7;
459 		tm.tm_mday += 2 - tm.tm_wday;
460 		tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
461 		tm.tm_isdst = -1;
462 		REL_CHECK("midnight Tuesday", now, tm);
463 
464 		ATF_CHECK(localtime_r(&now, &tm) != NULL);
465 		if (tm.tm_wday > 2 + 1)
466 			tm.tm_mday += 7;
467 		tm.tm_mday += 2 - tm.tm_wday;
468 		tm.tm_mday++;	/* xxx midnight --> the next day */
469 		tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
470 		tm.tm_isdst = -1;
471 		REL_CHECK("Tuesday midnight", now, tm);
472 	}
473 }
474 
475 ATF_TC(atsecs);
476 
477 ATF_TC_HEAD(atsecs, tc)
478 {
479 	atf_tc_set_md_var(tc, "descr", "Test seconds past the epoch");
480 }
481 
482 ATF_TC_BODY(atsecs, tc)
483 {
484 	int tzoff;
485 
486 	/* "@0" -> (time_t)0, regardless of timezone */
487 	ATF_CHECK(parsedate("@0", NULL, NULL) == (time_t)0);
488 	putenv(__UNCONST("TZ=Europe/Berlin"));
489 	tzset();
490 	ATF_CHECK(parsedate("@0", NULL, NULL) == (time_t)0);
491 	putenv(__UNCONST("TZ=America/New_York"));
492 	tzset();
493 	ATF_CHECK(parsedate("@0", NULL, NULL) == (time_t)0);
494 	tzoff = 0;
495 	ATF_CHECK(parsedate("@0", NULL, &tzoff) == (time_t)0);
496 	tzoff = 3600;
497 	ATF_CHECK(parsedate("@0", NULL, &tzoff) == (time_t)0);
498 	tzoff = -3600;
499 	ATF_CHECK(parsedate("@0", NULL, &tzoff) == (time_t)0);
500 
501 	/* -1 or other negative numbers are not errors */
502 	errno = 0;
503 	ATF_CHECK(parsedate("@-1", NULL, &tzoff) == (time_t)-1 && errno == 0);
504 	ATF_CHECK(parsedate("@-2", NULL, &tzoff) == (time_t)-2 && errno == 0);
505 
506 	/* junk is an error */
507 	errno = 0;
508 	ATF_CHECK(parsedate("@junk", NULL, NULL) == (time_t)-1 && errno != 0);
509 }
510 
511 ATF_TC(zones);
512 
513 ATF_TC_HEAD(zones, tc)
514 {
515 	atf_tc_set_md_var(tc, "descr", "Test parsing dates with zones");
516 }
517 
518 ATF_TC_BODY(zones, tc)
519 {
520 	parsecheck("2015-12-06 16:11:48 UTC", NULL, NULL, gmtime_r,
521 		2015, 12, 6, 16, 11, 48);
522 	parsecheck("2015-12-06 16:11:48 UT", NULL, NULL, gmtime_r,
523 		2015, 12, 6, 16, 11, 48);
524 	parsecheck("2015-12-06 16:11:48 GMT", NULL, NULL, gmtime_r,
525 		2015, 12, 6, 16, 11, 48);
526 	parsecheck("2015-12-06 16:11:48 +0000", NULL, NULL, gmtime_r,
527 		2015, 12, 6, 16, 11, 48);
528 
529 	parsecheck("2015-12-06 16:11:48 -0500", NULL, NULL, gmtime_r,
530 		2015, 12, 6, 21, 11, 48);
531 	parsecheck("2015-12-06 16:11:48 EST", NULL, NULL, gmtime_r,
532 		2015, 12, 6, 21, 11, 48);
533 	parsecheck("2015-12-06 16:11:48 EDT", NULL, NULL, gmtime_r,
534 		2015, 12, 6, 20, 11, 48);
535 	parsecheck("2015-12-06 16:11:48 +0500", NULL, NULL, gmtime_r,
536 		2015, 12, 6, 11, 11, 48);
537 
538 	parsecheck("2015-12-06 16:11:48 +1000", NULL, NULL, gmtime_r,
539 		2015, 12, 6, 6, 11, 48);
540 	parsecheck("2015-12-06 16:11:48 AEST", NULL, NULL, gmtime_r,
541 		2015, 12, 6, 6, 11, 48);
542 	parsecheck("2015-12-06 16:11:48 -1000", NULL, NULL, gmtime_r,
543 		2015, 12, 7, 2, 11, 48);
544 	parsecheck("2015-12-06 16:11:48 HST", NULL, NULL, gmtime_r,
545 		2015, 12, 7, 2, 11, 48);
546 
547 	parsecheck("2015-12-06 16:11:48 AWST", NULL, NULL, gmtime_r,
548 		2015, 12, 6, 8, 11, 48);
549 	parsecheck("2015-12-06 16:11:48 NZDT", NULL, NULL, gmtime_r,
550 		2015, 12, 6, 3, 11, 48);
551 
552         parsecheck("Sun, 6 Dec 2015 09:43:16 -0500", NULL, NULL, gmtime_r,
553 		2015, 12, 6, 14, 43, 16);
554 	parsecheck("Mon Dec  7 03:13:31 ICT 2015", NULL, NULL, gmtime_r,
555 		2015, 12, 6, 20, 13, 31);
556 	/* the day name is ignored when a day of month (etc) is given... */
557 	parsecheck("Sat Dec  7 03:13:31 ICT 2015", NULL, NULL, gmtime_r,
558 		2015, 12, 6, 20, 13, 31);
559 
560 
561 	parsecheck("2015-12-06 12:00:00 IDLW", NULL, NULL, gmtime_r,
562 		2015, 12, 7, 0, 0, 0);
563 	parsecheck("2015-12-06 12:00:00 IDLE", NULL, NULL, gmtime_r,
564 		2015, 12, 6, 0, 0, 0);
565 
566 	parsecheck("2015-12-06 21:17:33 NFT", NULL, NULL, gmtime_r,
567 		2015, 12, 7, 0, 47, 33);
568 	parsecheck("2015-12-06 21:17:33 ACST", NULL, NULL, gmtime_r,
569 		2015, 12, 6, 11, 47, 33);
570 	parsecheck("2015-12-06 21:17:33 +0717", NULL, NULL, gmtime_r,
571 		2015, 12, 6, 14, 0, 33);
572 
573 	parsecheck("2015-12-06 21:21:21 Z", NULL, NULL, gmtime_r,
574 		2015, 12, 6, 21, 21, 21);
575 	parsecheck("2015-12-06 21:21:21 A", NULL, NULL, gmtime_r,
576 		2015, 12, 6, 22, 21, 21);
577 	parsecheck("2015-12-06 21:21:21 G", NULL, NULL, gmtime_r,
578 		2015, 12, 7, 4, 21, 21);
579 	parsecheck("2015-12-06 21:21:21 M", NULL, NULL, gmtime_r,
580 		2015, 12, 7, 9, 21, 21);
581 	parsecheck("2015-12-06 21:21:21 N", NULL, NULL, gmtime_r,
582 		2015, 12, 6, 20, 21, 21);
583 	parsecheck("2015-12-06 21:21:21 T", NULL, NULL, gmtime_r,
584 		2015, 12, 6, 14, 21, 21);
585 	parsecheck("2015-12-06 21:21:21 Y", NULL, NULL, gmtime_r,
586 		2015, 12, 6, 9, 21, 21);
587 
588 }
589 
590 ATF_TC(gibberish);
591 
592 ATF_TC_HEAD(gibberish, tc)
593 {
594 	atf_tc_set_md_var(tc, "descr", "Test (not) parsing nonsense");
595 }
596 
597 ATF_TC_BODY(gibberish, tc)
598 {
599 	errno = 0;
600 	ATF_CHECK(parsedate("invalid nonsense", NULL, NULL) == (time_t)-1
601 	    && errno != 0);
602 	errno = 0;
603 	ATF_CHECK(parsedate("12th day of Christmas", NULL, NULL) == (time_t)-1
604 	    && errno != 0);
605 	errno = 0;
606 	ATF_CHECK(parsedate("2015-31-07 15:00", NULL, NULL) == (time_t)-1
607 	    && errno != 0);
608 	errno = 0;
609 	ATF_CHECK(parsedate("2015-02-29 10:01", NULL, NULL) == (time_t)-1
610 	    && errno != 0);
611 	errno = 0;
612 	ATF_CHECK(parsedate("2015-12-06 24:01", NULL, NULL) == (time_t)-1
613 	    && errno != 0);
614 	errno = 0;
615 	ATF_CHECK(parsedate("2015-12-06 14:61", NULL, NULL) == (time_t)-1
616 	    && errno != 0);
617 }
618 
619 ATF_TP_ADD_TCS(tp)
620 {
621 	ATF_TP_ADD_TC(tp, dates);
622 	ATF_TP_ADD_TC(tp, times);
623 	ATF_TP_ADD_TC(tp, dsttimes);
624 	ATF_TP_ADD_TC(tp, relative);
625 	ATF_TP_ADD_TC(tp, atsecs);
626 	ATF_TP_ADD_TC(tp, zones);
627 	ATF_TP_ADD_TC(tp, gibberish);
628 
629 	return atf_no_error();
630 }
631 
632