[thirdparty/systemd.git] / src / test / test-time.c

/***
  This file is part of systemd.

  Copyright 2013 Lennart Poettering

  systemd is free software; you can redistribute it and/or modify it
  under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation; either version 2.1 of the License, or
  (at your option) any later version.

  systemd is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/

#include "random-util.h"
#include "string-util.h"
#include "strv.h"
#include "time-util.h"

static void test_parse_sec(void) {
        usec_t u;

        assert_se(parse_sec("5s", &u) >= 0);
        assert_se(u == 5 * USEC_PER_SEC);
        assert_se(parse_sec("5s500ms", &u) >= 0);
        assert_se(u == 5 * USEC_PER_SEC + 500 * USEC_PER_MSEC);
        assert_se(parse_sec(" 5s 500ms  ", &u) >= 0);
        assert_se(u == 5 * USEC_PER_SEC + 500 * USEC_PER_MSEC);
        assert_se(parse_sec(" 5.5s  ", &u) >= 0);
        assert_se(u == 5 * USEC_PER_SEC + 500 * USEC_PER_MSEC);
        assert_se(parse_sec(" 5.5s 0.5ms ", &u) >= 0);
        assert_se(u == 5 * USEC_PER_SEC + 500 * USEC_PER_MSEC + 500);
        assert_se(parse_sec(" .22s ", &u) >= 0);
        assert_se(u == 220 * USEC_PER_MSEC);
        assert_se(parse_sec(" .50y ", &u) >= 0);
        assert_se(u == USEC_PER_YEAR / 2);
        assert_se(parse_sec("2.5", &u) >= 0);
        assert_se(u == 2500 * USEC_PER_MSEC);
        assert_se(parse_sec(".7", &u) >= 0);
        assert_se(u == 700 * USEC_PER_MSEC);
        assert_se(parse_sec("23us", &u) >= 0);
        assert_se(u == 23);
        assert_se(parse_sec("23µs", &u) >= 0);
        assert_se(u == 23);
        assert_se(parse_sec("infinity", &u) >= 0);
        assert_se(u == USEC_INFINITY);
        assert_se(parse_sec(" infinity ", &u) >= 0);
        assert_se(u == USEC_INFINITY);

        assert_se(parse_sec(" xyz ", &u) < 0);
        assert_se(parse_sec("", &u) < 0);
        assert_se(parse_sec(" . ", &u) < 0);
        assert_se(parse_sec(" 5. ", &u) < 0);
        assert_se(parse_sec(".s ", &u) < 0);
        assert_se(parse_sec(" infinity .7", &u) < 0);
        assert_se(parse_sec(".3 infinity", &u) < 0);
}

static void test_parse_time(void) {
        usec_t u;

        assert_se(parse_time("5", &u, 1) >= 0);
        assert_se(u == 5);

        assert_se(parse_time("5", &u, USEC_PER_MSEC) >= 0);
        assert_se(u == 5 * USEC_PER_MSEC);

        assert_se(parse_time("5", &u, USEC_PER_SEC) >= 0);
        assert_se(u == 5 * USEC_PER_SEC);

        assert_se(parse_time("5s", &u, 1) >= 0);
        assert_se(u == 5 * USEC_PER_SEC);

        assert_se(parse_time("5s", &u, USEC_PER_SEC) >= 0);
        assert_se(u == 5 * USEC_PER_SEC);

        assert_se(parse_time("5s", &u, USEC_PER_MSEC) >= 0);
        assert_se(u == 5 * USEC_PER_SEC);
}

static void test_parse_nsec(void) {
        nsec_t u;

        assert_se(parse_nsec("5s", &u) >= 0);
        assert_se(u == 5 * NSEC_PER_SEC);
        assert_se(parse_nsec("5s500ms", &u) >= 0);
        assert_se(u == 5 * NSEC_PER_SEC + 500 * NSEC_PER_MSEC);
        assert_se(parse_nsec(" 5s 500ms  ", &u) >= 0);
        assert_se(u == 5 * NSEC_PER_SEC + 500 * NSEC_PER_MSEC);
        assert_se(parse_nsec(" 5.5s  ", &u) >= 0);
        assert_se(u == 5 * NSEC_PER_SEC + 500 * NSEC_PER_MSEC);
        assert_se(parse_nsec(" 5.5s 0.5ms ", &u) >= 0);
        assert_se(u == 5 * NSEC_PER_SEC + 500 * NSEC_PER_MSEC + 500 * NSEC_PER_USEC);
        assert_se(parse_nsec(" .22s ", &u) >= 0);
        assert_se(u == 220 * NSEC_PER_MSEC);
        assert_se(parse_nsec(" .50y ", &u) >= 0);
        assert_se(u == NSEC_PER_YEAR / 2);
        assert_se(parse_nsec("2.5", &u) >= 0);
        assert_se(u == 2);
        assert_se(parse_nsec(".7", &u) >= 0);
        assert_se(u == 0);
        assert_se(parse_nsec("infinity", &u) >= 0);
        assert_se(u == NSEC_INFINITY);
        assert_se(parse_nsec(" infinity ", &u) >= 0);
        assert_se(u == NSEC_INFINITY);

        assert_se(parse_nsec(" xyz ", &u) < 0);
        assert_se(parse_nsec("", &u) < 0);
        assert_se(parse_nsec(" . ", &u) < 0);
        assert_se(parse_nsec(" 5. ", &u) < 0);
        assert_se(parse_nsec(".s ", &u) < 0);
        assert_se(parse_nsec(" infinity .7", &u) < 0);
        assert_se(parse_nsec(".3 infinity", &u) < 0);
}

static void test_format_timespan_one(usec_t x, usec_t accuracy) {
        char *r;
        char l[FORMAT_TIMESPAN_MAX];
        usec_t y;

        log_info(USEC_FMT"     (at accuracy "USEC_FMT")", x, accuracy);

        r = format_timespan(l, sizeof(l), x, accuracy);
        assert_se(r);

        log_info(" = <%s>", l);

        assert_se(parse_sec(l, &y) >= 0);

        log_info(" = "USEC_FMT, y);

        if (accuracy <= 0)
                accuracy = 1;

        assert_se(x / accuracy == y / accuracy);
}

static void test_format_timespan(usec_t accuracy) {
        test_format_timespan_one(0, accuracy);
        test_format_timespan_one(1, accuracy);
        test_format_timespan_one(1*USEC_PER_SEC, accuracy);
        test_format_timespan_one(999*USEC_PER_MSEC, accuracy);
        test_format_timespan_one(1234567, accuracy);
        test_format_timespan_one(12, accuracy);
        test_format_timespan_one(123, accuracy);
        test_format_timespan_one(1234, accuracy);
        test_format_timespan_one(12345, accuracy);
        test_format_timespan_one(123456, accuracy);
        test_format_timespan_one(1234567, accuracy);
        test_format_timespan_one(12345678, accuracy);
        test_format_timespan_one(1200000, accuracy);
        test_format_timespan_one(1230000, accuracy);
        test_format_timespan_one(1230000, accuracy);
        test_format_timespan_one(1234000, accuracy);
        test_format_timespan_one(1234500, accuracy);
        test_format_timespan_one(1234560, accuracy);
        test_format_timespan_one(1234567, accuracy);
        test_format_timespan_one(986087, accuracy);
        test_format_timespan_one(500 * USEC_PER_MSEC, accuracy);
        test_format_timespan_one(9*USEC_PER_YEAR/5 - 23, accuracy);
        test_format_timespan_one(USEC_INFINITY, accuracy);
}

static void test_timezone_is_valid(void) {
        assert_se(timezone_is_valid("Europe/Berlin"));
        assert_se(timezone_is_valid("Australia/Sydney"));
        assert_se(!timezone_is_valid("Europe/Do not exist"));
}

static void test_get_timezones(void) {
        _cleanup_strv_free_ char **zones = NULL;
        int r;
        char **zone;

        r = get_timezones(&zones);
        assert_se(r == 0);

        STRV_FOREACH(zone, zones)
                assert_se(timezone_is_valid(*zone));
}

static void test_usec_add(void) {
        assert_se(usec_add(0, 0) == 0);
        assert_se(usec_add(1, 4) == 5);
        assert_se(usec_add(USEC_INFINITY, 5) == USEC_INFINITY);
        assert_se(usec_add(5, USEC_INFINITY) == USEC_INFINITY);
        assert_se(usec_add(USEC_INFINITY-5, 2) == USEC_INFINITY-3);
        assert_se(usec_add(USEC_INFINITY-2, 2) == USEC_INFINITY);
        assert_se(usec_add(USEC_INFINITY-1, 2) == USEC_INFINITY);
        assert_se(usec_add(USEC_INFINITY, 2) == USEC_INFINITY);
}

static void test_usec_sub(void) {
        assert_se(usec_sub(0, 0) == 0);
        assert_se(usec_sub(4, 1) == 3);
        assert_se(usec_sub(4, 4) == 0);
        assert_se(usec_sub(4, 5) == 0);
        assert_se(usec_sub(USEC_INFINITY-3, -3) == USEC_INFINITY);
        assert_se(usec_sub(USEC_INFINITY-3, -3) == USEC_INFINITY);
        assert_se(usec_sub(USEC_INFINITY-3, -4) == USEC_INFINITY);
        assert_se(usec_sub(USEC_INFINITY-3, -5) == USEC_INFINITY);
        assert_se(usec_sub(USEC_INFINITY, 5) == USEC_INFINITY);
}

static void test_format_timestamp(void) {
        unsigned i;

        for (i = 0; i < 100; i++) {
                char buf[MAX(FORMAT_TIMESTAMP_MAX, FORMAT_TIMESPAN_MAX)];
                usec_t x, y;

                random_bytes(&x, sizeof(x));
                x = x % (2147483600 * USEC_PER_SEC) + 1;

                assert_se(format_timestamp(buf, sizeof(buf), x));
                log_info("%s", buf);
                assert_se(parse_timestamp(buf, &y) >= 0);
                assert_se(x / USEC_PER_SEC == y / USEC_PER_SEC);

                assert_se(format_timestamp_utc(buf, sizeof(buf), x));
                log_info("%s", buf);
                assert_se(parse_timestamp(buf, &y) >= 0);
                assert_se(x / USEC_PER_SEC == y / USEC_PER_SEC);

                assert_se(format_timestamp_us(buf, sizeof(buf), x));
                log_info("%s", buf);
                assert_se(parse_timestamp(buf, &y) >= 0);
                assert_se(x == y);

                assert_se(format_timestamp_us_utc(buf, sizeof(buf), x));
                log_info("%s", buf);
                assert_se(parse_timestamp(buf, &y) >= 0);
                assert_se(x == y);

                assert_se(format_timestamp_relative(buf, sizeof(buf), x));
                log_info("%s", buf);
                assert_se(parse_timestamp(buf, &y) >= 0);

                /* The two calls above will run with a slightly different local time. Make sure we are in the same
                 * range however, but give enough leeway that this is unlikely to explode. And of course,
                 * format_timestamp_relative() scales the accuracy with the distance from the current time up to one
                 * month, cover for that too. */
                assert_se(y > x ? y - x : x - y <= USEC_PER_MONTH + USEC_PER_DAY);
        }
}

static void test_format_timestamp_utc_one(usec_t t, const char *result) {
        char buf[FORMAT_TIMESTAMP_MAX];

        assert_se(!format_timestamp_utc(buf, sizeof(buf), t) == !result);

        if (result)
                assert_se(streq(result, buf));
}

static void test_format_timestamp_utc(void) {
        test_format_timestamp_utc_one(0, NULL);
        test_format_timestamp_utc_one(1, "Thu 1970-01-01 00:00:00 UTC");
        test_format_timestamp_utc_one(USEC_PER_SEC, "Thu 1970-01-01 00:00:01 UTC");

#if SIZEOF_TIME_T == 8
        test_format_timestamp_utc_one(USEC_TIMESTAMP_FORMATTABLE_MAX, "Thu 9999-12-30 23:59:59 UTC");
#elif SIZEOF_TIME_T == 4
        test_format_timestamp_utc_one(USEC_TIMESTAMP_FORMATTABLE_MAX, "Tue 2038-01-19 03:14:07 UTC");
#endif

        test_format_timestamp_utc_one(USEC_TIMESTAMP_FORMATTABLE_MAX+1, NULL);
        test_format_timestamp_utc_one(USEC_INFINITY, NULL);
}

static void test_dual_timestamp_deserialize(void) {
        int r;
        dual_timestamp t;

        r = dual_timestamp_deserialize("1234 5678", &t);
        assert_se(r == 0);
        assert_se(t.realtime == 1234);
        assert_se(t.monotonic == 5678);

        r = dual_timestamp_deserialize("1234x 5678", &t);
        assert_se(r == -EINVAL);

        r = dual_timestamp_deserialize("1234 5678y", &t);
        assert_se(r == -EINVAL);

        r = dual_timestamp_deserialize("-1234 5678", &t);
        assert_se(r == -EINVAL);

        r = dual_timestamp_deserialize("1234 -5678", &t);
        assert_se(r == -EINVAL);

        /* Check that output wasn't modified. */
        assert_se(t.realtime == 1234);
        assert_se(t.monotonic == 5678);

        r = dual_timestamp_deserialize("+123 567", &t);
        assert_se(r == 0);
        assert_se(t.realtime == 123);
        assert_se(t.monotonic == 567);

        /* Check that we get "infinity" on overflow. */
        r = dual_timestamp_deserialize("18446744073709551617 0", &t);
        assert_se(r == 0);
        assert_se(t.realtime == USEC_INFINITY);
        assert_se(t.monotonic == 0);
}

int main(int argc, char *argv[]) {
        uintmax_t x;

        test_parse_sec();
        test_parse_time();
        test_parse_nsec();
        test_format_timespan(1);
        test_format_timespan(USEC_PER_MSEC);
        test_format_timespan(USEC_PER_SEC);
        test_timezone_is_valid();
        test_get_timezones();
        test_usec_add();
        test_usec_sub();
        test_format_timestamp();
        test_format_timestamp_utc();
        test_dual_timestamp_deserialize();

        /* Ensure time_t is signed */
        assert_cc((time_t) -1 < (time_t) 1);

        /* Ensure TIME_T_MAX works correctly */
        x = (uintmax_t) TIME_T_MAX;
        x++;
        assert((time_t) x < 0);

        return 0;
}
Commit	Line	Data
cb0dac05 LP	1	/***
	2	This file is part of systemd.
	3
	4	Copyright 2013 Lennart Poettering
	5
	6	systemd is free software; you can redistribute it and/or modify it
	7	under the terms of the GNU Lesser General Public License as published by
	8	the Free Software Foundation; either version 2.1 of the License, or
	9	(at your option) any later version.
	10
	11	systemd is distributed in the hope that it will be useful, but
	12	WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	Lesser General Public License for more details.
	15
	16	You should have received a copy of the GNU Lesser General Public License
	17	along with systemd; If not, see <http://www.gnu.org/licenses/>.
	18	***/
	19
1bb4b028 LP	20	#include "random-util.h"
1bb4b028 LP	21	#include "string-util.h"
6accc7a2	22	#include "strv.h"
cf0fbc49	23	#include "time-util.h"
cb0dac05 LP	24
	25	static void test_parse_sec(void) {
	26	usec_t u;
	27
	28	assert_se(parse_sec("5s", &u) >= 0);
	29	assert_se(u == 5 * USEC_PER_SEC);
	30	assert_se(parse_sec("5s500ms", &u) >= 0);
	31	assert_se(u == 5 * USEC_PER_SEC + 500 * USEC_PER_MSEC);
	32	assert_se(parse_sec(" 5s 500ms ", &u) >= 0);
	33	assert_se(u == 5 * USEC_PER_SEC + 500 * USEC_PER_MSEC);
	34	assert_se(parse_sec(" 5.5s ", &u) >= 0);
	35	assert_se(u == 5 * USEC_PER_SEC + 500 * USEC_PER_MSEC);
	36	assert_se(parse_sec(" 5.5s 0.5ms ", &u) >= 0);
	37	assert_se(u == 5 * USEC_PER_SEC + 500 * USEC_PER_MSEC + 500);
	38	assert_se(parse_sec(" .22s ", &u) >= 0);
	39	assert_se(u == 220 * USEC_PER_MSEC);
	40	assert_se(parse_sec(" .50y ", &u) >= 0);
	41	assert_se(u == USEC_PER_YEAR / 2);
	42	assert_se(parse_sec("2.5", &u) >= 0);
	43	assert_se(u == 2500 * USEC_PER_MSEC);
	44	assert_se(parse_sec(".7", &u) >= 0);
	45	assert_se(u == 700 * USEC_PER_MSEC);
5efdbf11 LP	46	assert_se(parse_sec("23us", &u) >= 0);
	47	assert_se(u == 23);
	48	assert_se(parse_sec("23µs", &u) >= 0);
	49	assert_se(u == 23);
b1d6dcf5 ZJS	50	assert_se(parse_sec("infinity", &u) >= 0);
	51	assert_se(u == USEC_INFINITY);
	52	assert_se(parse_sec(" infinity ", &u) >= 0);
	53	assert_se(u == USEC_INFINITY);
cb0dac05 LP	54
	55	assert_se(parse_sec(" xyz ", &u) < 0);
	56	assert_se(parse_sec("", &u) < 0);
	57	assert_se(parse_sec(" . ", &u) < 0);
	58	assert_se(parse_sec(" 5. ", &u) < 0);
	59	assert_se(parse_sec(".s ", &u) < 0);
b1d6dcf5 ZJS	60	assert_se(parse_sec(" infinity .7", &u) < 0);
b1d6dcf5 ZJS	61	assert_se(parse_sec(".3 infinity", &u) < 0);
cb0dac05 LP	62	}
cb0dac05 LP	63
519cffec LP	64	static void test_parse_time(void) {
	65	usec_t u;
	66
	67	assert_se(parse_time("5", &u, 1) >= 0);
	68	assert_se(u == 5);
	69
	70	assert_se(parse_time("5", &u, USEC_PER_MSEC) >= 0);
	71	assert_se(u == 5 * USEC_PER_MSEC);
	72
	73	assert_se(parse_time("5", &u, USEC_PER_SEC) >= 0);
	74	assert_se(u == 5 * USEC_PER_SEC);
	75
	76	assert_se(parse_time("5s", &u, 1) >= 0);
	77	assert_se(u == 5 * USEC_PER_SEC);
	78
	79	assert_se(parse_time("5s", &u, USEC_PER_SEC) >= 0);
	80	assert_se(u == 5 * USEC_PER_SEC);
	81
	82	assert_se(parse_time("5s", &u, USEC_PER_MSEC) >= 0);
	83	assert_se(u == 5 * USEC_PER_SEC);
	84	}
	85
cb0dac05 LP	86	static void test_parse_nsec(void) {
	87	nsec_t u;
	88
	89	assert_se(parse_nsec("5s", &u) >= 0);
	90	assert_se(u == 5 * NSEC_PER_SEC);
	91	assert_se(parse_nsec("5s500ms", &u) >= 0);
	92	assert_se(u == 5 * NSEC_PER_SEC + 500 * NSEC_PER_MSEC);
	93	assert_se(parse_nsec(" 5s 500ms ", &u) >= 0);
	94	assert_se(u == 5 * NSEC_PER_SEC + 500 * NSEC_PER_MSEC);
	95	assert_se(parse_nsec(" 5.5s ", &u) >= 0);
	96	assert_se(u == 5 * NSEC_PER_SEC + 500 * NSEC_PER_MSEC);
	97	assert_se(parse_nsec(" 5.5s 0.5ms ", &u) >= 0);
	98	assert_se(u == 5 * NSEC_PER_SEC + 500 * NSEC_PER_MSEC + 500 * NSEC_PER_USEC);
	99	assert_se(parse_nsec(" .22s ", &u) >= 0);
	100	assert_se(u == 220 * NSEC_PER_MSEC);
	101	assert_se(parse_nsec(" .50y ", &u) >= 0);
	102	assert_se(u == NSEC_PER_YEAR / 2);
	103	assert_se(parse_nsec("2.5", &u) >= 0);
	104	assert_se(u == 2);
	105	assert_se(parse_nsec(".7", &u) >= 0);
	106	assert_se(u == 0);
fdd30a15 DM	107	assert_se(parse_nsec("infinity", &u) >= 0);
	108	assert_se(u == NSEC_INFINITY);
	109	assert_se(parse_nsec(" infinity ", &u) >= 0);
	110	assert_se(u == NSEC_INFINITY);
cb0dac05 LP	111
	112	assert_se(parse_nsec(" xyz ", &u) < 0);
	113	assert_se(parse_nsec("", &u) < 0);
	114	assert_se(parse_nsec(" . ", &u) < 0);
	115	assert_se(parse_nsec(" 5. ", &u) < 0);
	116	assert_se(parse_nsec(".s ", &u) < 0);
fdd30a15 DM	117	assert_se(parse_nsec(" infinity .7", &u) < 0);
fdd30a15 DM	118	assert_se(parse_nsec(".3 infinity", &u) < 0);
cb0dac05 LP	119	}
cb0dac05 LP	120
2fa4092c LP	121	static void test_format_timespan_one(usec_t x, usec_t accuracy) {
	122	char *r;
	123	char l[FORMAT_TIMESPAN_MAX];
	124	usec_t y;
	125
de0671ee	126	log_info(USEC_FMT" (at accuracy "USEC_FMT")", x, accuracy);
2fa4092c LP	127
	128	r = format_timespan(l, sizeof(l), x, accuracy);
	129	assert_se(r);
	130
	131	log_info(" = <%s>", l);
	132
	133	assert_se(parse_sec(l, &y) >= 0);
	134
de0671ee	135	log_info(" = "USEC_FMT, y);
2fa4092c LP	136
	137	if (accuracy <= 0)
	138	accuracy = 1;
	139
	140	assert_se(x / accuracy == y / accuracy);
	141	}
	142
	143	static void test_format_timespan(usec_t accuracy) {
	144	test_format_timespan_one(0, accuracy);
	145	test_format_timespan_one(1, accuracy);
	146	test_format_timespan_one(1*USEC_PER_SEC, accuracy);
	147	test_format_timespan_one(999*USEC_PER_MSEC, accuracy);
	148	test_format_timespan_one(1234567, accuracy);
	149	test_format_timespan_one(12, accuracy);
	150	test_format_timespan_one(123, accuracy);
	151	test_format_timespan_one(1234, accuracy);
	152	test_format_timespan_one(12345, accuracy);
	153	test_format_timespan_one(123456, accuracy);
	154	test_format_timespan_one(1234567, accuracy);
	155	test_format_timespan_one(12345678, accuracy);
	156	test_format_timespan_one(1200000, accuracy);
	157	test_format_timespan_one(1230000, accuracy);
	158	test_format_timespan_one(1230000, accuracy);
	159	test_format_timespan_one(1234000, accuracy);
	160	test_format_timespan_one(1234500, accuracy);
	161	test_format_timespan_one(1234560, accuracy);
	162	test_format_timespan_one(1234567, accuracy);
	163	test_format_timespan_one(986087, accuracy);
	164	test_format_timespan_one(500 * USEC_PER_MSEC, accuracy);
	165	test_format_timespan_one(9*USEC_PER_YEAR/5 - 23, accuracy);
b1d6dcf5	166	test_format_timespan_one(USEC_INFINITY, accuracy);
2fa4092c LP	167	}
2fa4092c LP	168
6accc7a2 RC	169	static void test_timezone_is_valid(void) {
	170	assert_se(timezone_is_valid("Europe/Berlin"));
	171	assert_se(timezone_is_valid("Australia/Sydney"));
	172	assert_se(!timezone_is_valid("Europe/Do not exist"));
	173	}
	174
	175	static void test_get_timezones(void) {
	176	_cleanup_strv_free_ char **zones = NULL;
	177	int r;
	178	char **zone;
	179
	180	r = get_timezones(&zones);
	181	assert_se(r == 0);
	182
53f555b6	183	STRV_FOREACH(zone, zones)
6accc7a2	184	assert_se(timezone_is_valid(*zone));
53f555b6 LP	185	}
	186
	187	static void test_usec_add(void) {
	188	assert_se(usec_add(0, 0) == 0);
	189	assert_se(usec_add(1, 4) == 5);
	190	assert_se(usec_add(USEC_INFINITY, 5) == USEC_INFINITY);
	191	assert_se(usec_add(5, USEC_INFINITY) == USEC_INFINITY);
	192	assert_se(usec_add(USEC_INFINITY-5, 2) == USEC_INFINITY-3);
	193	assert_se(usec_add(USEC_INFINITY-2, 2) == USEC_INFINITY);
	194	assert_se(usec_add(USEC_INFINITY-1, 2) == USEC_INFINITY);
	195	assert_se(usec_add(USEC_INFINITY, 2) == USEC_INFINITY);
6accc7a2 RC	196	}
6accc7a2 RC	197
04a1d84c LP	198	static void test_usec_sub(void) {
	199	assert_se(usec_sub(0, 0) == 0);
	200	assert_se(usec_sub(4, 1) == 3);
	201	assert_se(usec_sub(4, 4) == 0);
	202	assert_se(usec_sub(4, 5) == 0);
	203	assert_se(usec_sub(USEC_INFINITY-3, -3) == USEC_INFINITY);
	204	assert_se(usec_sub(USEC_INFINITY-3, -3) == USEC_INFINITY);
	205	assert_se(usec_sub(USEC_INFINITY-3, -4) == USEC_INFINITY);
	206	assert_se(usec_sub(USEC_INFINITY-3, -5) == USEC_INFINITY);
	207	assert_se(usec_sub(USEC_INFINITY, 5) == USEC_INFINITY);
	208	}
	209
21b3a0fc LP	210	static void test_format_timestamp(void) {
	211	unsigned i;
	212
	213	for (i = 0; i < 100; i++) {
	214	char buf[MAX(FORMAT_TIMESTAMP_MAX, FORMAT_TIMESPAN_MAX)];
	215	usec_t x, y;
	216
	217	random_bytes(&x, sizeof(x));
	218	x = x % (2147483600 * USEC_PER_SEC) + 1;
	219
	220	assert_se(format_timestamp(buf, sizeof(buf), x));
	221	log_info("%s", buf);
	222	assert_se(parse_timestamp(buf, &y) >= 0);
	223	assert_se(x / USEC_PER_SEC == y / USEC_PER_SEC);
	224
	225	assert_se(format_timestamp_utc(buf, sizeof(buf), x));
	226	log_info("%s", buf);
	227	assert_se(parse_timestamp(buf, &y) >= 0);
	228	assert_se(x / USEC_PER_SEC == y / USEC_PER_SEC);
	229
	230	assert_se(format_timestamp_us(buf, sizeof(buf), x));
	231	log_info("%s", buf);
	232	assert_se(parse_timestamp(buf, &y) >= 0);
	233	assert_se(x == y);
	234
	235	assert_se(format_timestamp_us_utc(buf, sizeof(buf), x));
	236	log_info("%s", buf);
	237	assert_se(parse_timestamp(buf, &y) >= 0);
	238	assert_se(x == y);
	239
	240	assert_se(format_timestamp_relative(buf, sizeof(buf), x));
	241	log_info("%s", buf);
	242	assert_se(parse_timestamp(buf, &y) >= 0);
	243
	244	/* The two calls above will run with a slightly different local time. Make sure we are in the same
	245	* range however, but give enough leeway that this is unlikely to explode. And of course,
	246	* format_timestamp_relative() scales the accuracy with the distance from the current time up to one
	247	* month, cover for that too. */
	248	assert_se(y > x ? y - x : x - y <= USEC_PER_MONTH + USEC_PER_DAY);
	249	}
	250	}
	251
1bb4b028 LP	252	static void test_format_timestamp_utc_one(usec_t t, const char *result) {
	253	char buf[FORMAT_TIMESTAMP_MAX];
	254
	255	assert_se(!format_timestamp_utc(buf, sizeof(buf), t) == !result);
	256
	257	if (result)
	258	assert_se(streq(result, buf));
	259	}
	260
	261	static void test_format_timestamp_utc(void) {
	262	test_format_timestamp_utc_one(0, NULL);
	263	test_format_timestamp_utc_one(1, "Thu 1970-01-01 00:00:00 UTC");
	264	test_format_timestamp_utc_one(USEC_PER_SEC, "Thu 1970-01-01 00:00:01 UTC");
	265
	266	#if SIZEOF_TIME_T == 8
	267	test_format_timestamp_utc_one(USEC_TIMESTAMP_FORMATTABLE_MAX, "Thu 9999-12-30 23:59:59 UTC");
	268	#elif SIZEOF_TIME_T == 4
	269	test_format_timestamp_utc_one(USEC_TIMESTAMP_FORMATTABLE_MAX, "Tue 2038-01-19 03:14:07 UTC");
	270	#endif
	271
	272	test_format_timestamp_utc_one(USEC_TIMESTAMP_FORMATTABLE_MAX+1, NULL);
	273	test_format_timestamp_utc_one(USEC_INFINITY, NULL);
	274	}
	275
9c0565b2 ZJS	276	static void test_dual_timestamp_deserialize(void) {
	277	int r;
	278	dual_timestamp t;
	279
	280	r = dual_timestamp_deserialize("1234 5678", &t);
	281	assert_se(r == 0);
	282	assert_se(t.realtime == 1234);
	283	assert_se(t.monotonic == 5678);
	284
	285	r = dual_timestamp_deserialize("1234x 5678", &t);
	286	assert_se(r == -EINVAL);
	287
	288	r = dual_timestamp_deserialize("1234 5678y", &t);
	289	assert_se(r == -EINVAL);
	290
	291	r = dual_timestamp_deserialize("-1234 5678", &t);
	292	assert_se(r == -EINVAL);
	293
	294	r = dual_timestamp_deserialize("1234 -5678", &t);
	295	assert_se(r == -EINVAL);
	296
	297	/* Check that output wasn't modified. */
	298	assert_se(t.realtime == 1234);
	299	assert_se(t.monotonic == 5678);
	300
	301	r = dual_timestamp_deserialize("+123 567", &t);
	302	assert_se(r == 0);
	303	assert_se(t.realtime == 123);
	304	assert_se(t.monotonic == 567);
	305
	306	/* Check that we get "infinity" on overflow. */
	307	r = dual_timestamp_deserialize("18446744073709551617 0", &t);
	308	assert_se(r == 0);
	309	assert_se(t.realtime == USEC_INFINITY);
	310	assert_se(t.monotonic == 0);
	311	}
	312
cb0dac05	313	int main(int argc, char *argv[]) {
2d60169d LP	314	uintmax_t x;
2d60169d LP	315
cb0dac05	316	test_parse_sec();
519cffec	317	test_parse_time();
cb0dac05	318	test_parse_nsec();
2fa4092c LP	319	test_format_timespan(1);
	320	test_format_timespan(USEC_PER_MSEC);
	321	test_format_timespan(USEC_PER_SEC);
6accc7a2 RC	322	test_timezone_is_valid();
6accc7a2 RC	323	test_get_timezones();
53f555b6	324	test_usec_add();
04a1d84c	325	test_usec_sub();
21b3a0fc	326	test_format_timestamp();
1bb4b028	327	test_format_timestamp_utc();
9c0565b2	328	test_dual_timestamp_deserialize();
6accc7a2	329
2d60169d LP	330	/* Ensure time_t is signed */
	331	assert_cc((time_t) -1 < (time_t) 1);
	332
	333	/* Ensure TIME_T_MAX works correctly */
	334	x = (uintmax_t) TIME_T_MAX;
313cefa1	335	x++;
2d60169d LP	336	assert((time_t) x < 0);
2d60169d LP	337
cb0dac05 LP	338	return 0;
cb0dac05 LP	339	}