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test-time-util.c
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/* SPDX-License-Identifier: LGPL-2.1+ */
#include "random-util.h"
#include "serialize.h"
#include "string-util.h"
#include "strv.h"
#include "time-util.h"
static void test_parse_sec(void) {
usec_t u;
log_info("/* %s */", __func__);
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("+3.1s", &u) >= 0);
assert_se(u == 3100 * USEC_PER_MSEC);
assert_se(parse_sec("3.1s.2", &u) >= 0);
assert_se(u == 3300 * USEC_PER_MSEC);
assert_se(parse_sec("3.1 .2", &u) >= 0);
assert_se(u == 3300 * USEC_PER_MSEC);
assert_se(parse_sec("3.1 sec .2 sec", &u) >= 0);
assert_se(u == 3300 * USEC_PER_MSEC);
assert_se(parse_sec("3.1 sec 1.2 sec", &u) >= 0);
assert_se(u == 4300 * USEC_PER_MSEC);
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("-5s ", &u) < 0);
assert_se(parse_sec("-0.3s ", &u) < 0);
assert_se(parse_sec("-0.0s ", &u) < 0);
assert_se(parse_sec("-0.-0s ", &u) < 0);
assert_se(parse_sec("0.-0s ", &u) < 0);
assert_se(parse_sec("3.-0s ", &u) < 0);
assert_se(parse_sec(" infinity .7", &u) < 0);
assert_se(parse_sec(".3 infinity", &u) < 0);
assert_se(parse_sec("3.+1s", &u) < 0);
assert_se(parse_sec("3. 1s", &u) < 0);
assert_se(parse_sec("3.s", &u) < 0);
assert_se(parse_sec("12.34.56", &u) < 0);
assert_se(parse_sec("12..34", &u) < 0);
assert_se(parse_sec("..1234", &u) < 0);
assert_se(parse_sec("1234..", &u) < 0);
}
static void test_parse_sec_fix_0(void) {
usec_t u;
log_info("/* %s */", __func__);
assert_se(parse_sec_fix_0("5s", &u) >= 0);
assert_se(u == 5 * USEC_PER_SEC);
assert_se(parse_sec_fix_0("0s", &u) >= 0);
assert_se(u == USEC_INFINITY);
assert_se(parse_sec_fix_0("0", &u) >= 0);
assert_se(u == USEC_INFINITY);
assert_se(parse_sec_fix_0(" 0", &u) >= 0);
assert_se(u == USEC_INFINITY);
}
static void test_parse_time(void) {
usec_t u;
log_info("/* %s */", __func__);
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);
assert_se(parse_time("11111111111111y", &u, 1) == -ERANGE);
assert_se(parse_time("1.1111111111111y", &u, 1) >= 0);
}
static void test_parse_nsec(void) {
nsec_t u;
log_info("/* %s */", __func__);
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("+3.1s", &u) >= 0);
assert_se(u == 3100 * NSEC_PER_MSEC);
assert_se(parse_nsec("3.1s.2", &u) >= 0);
assert_se(u == 3100 * NSEC_PER_MSEC);
assert_se(parse_nsec("3.1 .2s", &u) >= 0);
assert_se(u == 200 * NSEC_PER_MSEC + 3);
assert_se(parse_nsec("3.1 sec .2 sec", &u) >= 0);
assert_se(u == 3300 * NSEC_PER_MSEC);
assert_se(parse_nsec("3.1 sec 1.2 sec", &u) >= 0);
assert_se(u == 4300 * NSEC_PER_MSEC);
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);
assert_se(parse_nsec("-5s ", &u) < 0);
assert_se(parse_nsec("-0.3s ", &u) < 0);
assert_se(parse_nsec("-0.0s ", &u) < 0);
assert_se(parse_nsec("-0.-0s ", &u) < 0);
assert_se(parse_nsec("0.-0s ", &u) < 0);
assert_se(parse_nsec("3.-0s ", &u) < 0);
assert_se(parse_nsec(" infinity .7", &u) < 0);
assert_se(parse_nsec(".3 infinity", &u) < 0);
assert_se(parse_nsec("3.+1s", &u) < 0);
assert_se(parse_nsec("3. 1s", &u) < 0);
assert_se(parse_nsec("3.s", &u) < 0);
assert_se(parse_nsec("12.34.56", &u) < 0);
assert_se(parse_nsec("12..34", &u) < 0);
assert_se(parse_nsec("..1234", &u) < 0);
assert_se(parse_nsec("1234..", &u) < 0);
assert_se(parse_nsec("1111111111111y", &u) == -ERANGE);
assert_se(parse_nsec("1.111111111111y", &u) >= 0);
}
static void test_format_timespan_one(usec_t x, usec_t accuracy) {
char l[FORMAT_TIMESPAN_MAX];
const char *t;
usec_t y;
log_info(USEC_FMT" (at accuracy "USEC_FMT")", x, accuracy);
assert_se(t = format_timespan(l, sizeof l, x, accuracy));
log_info(" = <%s>", t);
assert_se(parse_sec(t, &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) {
log_info("/* %s accuracy="USEC_FMT" */", __func__, 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) {
log_info("/* %s */", __func__);
assert_se(timezone_is_valid("Europe/Berlin", LOG_ERR));
assert_se(timezone_is_valid("Australia/Sydney", LOG_ERR));
assert_se(!timezone_is_valid("Europe/Do not exist", LOG_ERR));
}
static void test_get_timezones(void) {
_cleanup_strv_free_ char **zones = NULL;
int r;
char **zone;
log_info("/* %s */", __func__);
r = get_timezones(&zones);
assert_se(r == 0);
STRV_FOREACH(zone, zones)
assert_se(timezone_is_valid(*zone, LOG_ERR));
}
static void test_usec_add(void) {
log_info("/* %s */", __func__);
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_unsigned(void) {
log_info("/* %s */", __func__);
assert_se(usec_sub_unsigned(0, 0) == 0);
assert_se(usec_sub_unsigned(0, 2) == 0);
assert_se(usec_sub_unsigned(0, USEC_INFINITY) == 0);
assert_se(usec_sub_unsigned(1, 0) == 1);
assert_se(usec_sub_unsigned(1, 1) == 0);
assert_se(usec_sub_unsigned(1, 2) == 0);
assert_se(usec_sub_unsigned(1, 3) == 0);
assert_se(usec_sub_unsigned(1, USEC_INFINITY) == 0);
assert_se(usec_sub_unsigned(USEC_INFINITY-1, 0) == USEC_INFINITY-1);
assert_se(usec_sub_unsigned(USEC_INFINITY-1, 1) == USEC_INFINITY-2);
assert_se(usec_sub_unsigned(USEC_INFINITY-1, 2) == USEC_INFINITY-3);
assert_se(usec_sub_unsigned(USEC_INFINITY-1, USEC_INFINITY-2) == 1);
assert_se(usec_sub_unsigned(USEC_INFINITY-1, USEC_INFINITY-1) == 0);
assert_se(usec_sub_unsigned(USEC_INFINITY-1, USEC_INFINITY) == 0);
assert_se(usec_sub_unsigned(USEC_INFINITY, 0) == USEC_INFINITY);
assert_se(usec_sub_unsigned(USEC_INFINITY, 1) == USEC_INFINITY);
assert_se(usec_sub_unsigned(USEC_INFINITY, 2) == USEC_INFINITY);
assert_se(usec_sub_unsigned(USEC_INFINITY, USEC_INFINITY) == USEC_INFINITY);
}
static void test_usec_sub_signed(void) {
log_info("/* %s */", __func__);
assert_se(usec_sub_signed(0, 0) == 0);
assert_se(usec_sub_signed(4, 1) == 3);
assert_se(usec_sub_signed(4, 4) == 0);
assert_se(usec_sub_signed(4, 5) == 0);
assert_se(usec_sub_signed(USEC_INFINITY-3, -3) == USEC_INFINITY);
assert_se(usec_sub_signed(USEC_INFINITY-3, -3) == USEC_INFINITY);
assert_se(usec_sub_signed(USEC_INFINITY-3, -4) == USEC_INFINITY);
assert_se(usec_sub_signed(USEC_INFINITY-3, -5) == USEC_INFINITY);
assert_se(usec_sub_signed(USEC_INFINITY, 5) == USEC_INFINITY);
}
static void test_format_timestamp(void) {
unsigned i;
log_info("/* %s */", __func__);
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 val, const char *result) {
char buf[FORMAT_TIMESTAMP_MAX];
const char *t;
t = format_timestamp_utc(buf, sizeof(buf), val);
assert_se(streq_ptr(t, result));
}
static void test_format_timestamp_utc(void) {
log_info("/* %s */", __func__);
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");
test_format_timestamp_utc_one(USEC_TIMESTAMP_FORMATTABLE_MAX + 1, "--- XXXX-XX-XX XX:XX:XX");
#elif SIZEOF_TIME_T == 4
test_format_timestamp_utc_one(USEC_TIMESTAMP_FORMATTABLE_MAX, "Tue 2038-01-19 03:14:07 UTC");
test_format_timestamp_utc_one(USEC_TIMESTAMP_FORMATTABLE_MAX + 1, "--- XXXX-XX-XX XX:XX:XX");
#endif
test_format_timestamp_utc_one(USEC_INFINITY, NULL);
}
static void test_deserialize_dual_timestamp(void) {
int r;
dual_timestamp t;
log_info("/* %s */", __func__);
r = deserialize_dual_timestamp("1234 5678", &t);
assert_se(r == 0);
assert_se(t.realtime == 1234);
assert_se(t.monotonic == 5678);
r = deserialize_dual_timestamp("1234x 5678", &t);
assert_se(r == -EINVAL);
r = deserialize_dual_timestamp("1234 5678y", &t);
assert_se(r == -EINVAL);
r = deserialize_dual_timestamp("-1234 5678", &t);
assert_se(r == -EINVAL);
r = deserialize_dual_timestamp("1234 -5678", &t);
assert_se(r == -EINVAL);
/* Check that output wasn't modified. */
assert_se(t.realtime == 1234);
assert_se(t.monotonic == 5678);
r = deserialize_dual_timestamp("+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 = deserialize_dual_timestamp("18446744073709551617 0", &t);
assert_se(r == 0);
assert_se(t.realtime == USEC_INFINITY);
assert_se(t.monotonic == 0);
}
static void assert_similar(usec_t a, usec_t b) {
usec_t d;
if (a > b)
d = a - b;
else
d = b - a;
assert(d < 10*USEC_PER_SEC);
}
static void test_usec_shift_clock(void) {
usec_t rt, mn, bt;
log_info("/* %s */", __func__);
rt = now(CLOCK_REALTIME);
mn = now(CLOCK_MONOTONIC);
bt = now(clock_boottime_or_monotonic());
assert_se(usec_shift_clock(USEC_INFINITY, CLOCK_REALTIME, CLOCK_MONOTONIC) == USEC_INFINITY);
assert_similar(usec_shift_clock(rt + USEC_PER_HOUR, CLOCK_REALTIME, CLOCK_MONOTONIC), mn + USEC_PER_HOUR);
assert_similar(usec_shift_clock(rt + 2*USEC_PER_HOUR, CLOCK_REALTIME, clock_boottime_or_monotonic()), bt + 2*USEC_PER_HOUR);
assert_se(usec_shift_clock(rt + 3*USEC_PER_HOUR, CLOCK_REALTIME, CLOCK_REALTIME_ALARM) == rt + 3*USEC_PER_HOUR);
assert_similar(usec_shift_clock(mn + 4*USEC_PER_HOUR, CLOCK_MONOTONIC, CLOCK_REALTIME_ALARM), rt + 4*USEC_PER_HOUR);
assert_similar(usec_shift_clock(mn + 5*USEC_PER_HOUR, CLOCK_MONOTONIC, clock_boottime_or_monotonic()), bt + 5*USEC_PER_HOUR);
assert_se(usec_shift_clock(mn + 6*USEC_PER_HOUR, CLOCK_MONOTONIC, CLOCK_MONOTONIC) == mn + 6*USEC_PER_HOUR);
assert_similar(usec_shift_clock(bt + 7*USEC_PER_HOUR, clock_boottime_or_monotonic(), CLOCK_MONOTONIC), mn + 7*USEC_PER_HOUR);
assert_similar(usec_shift_clock(bt + 8*USEC_PER_HOUR, clock_boottime_or_monotonic(), CLOCK_REALTIME_ALARM), rt + 8*USEC_PER_HOUR);
assert_se(usec_shift_clock(bt + 9*USEC_PER_HOUR, clock_boottime_or_monotonic(), clock_boottime_or_monotonic()) == bt + 9*USEC_PER_HOUR);
if (mn > USEC_PER_MINUTE) {
assert_similar(usec_shift_clock(rt - 30 * USEC_PER_SEC, CLOCK_REALTIME_ALARM, CLOCK_MONOTONIC), mn - 30 * USEC_PER_SEC);
assert_similar(usec_shift_clock(rt - 50 * USEC_PER_SEC, CLOCK_REALTIME, clock_boottime_or_monotonic()), bt - 50 * USEC_PER_SEC);
}
}
static void test_in_utc_timezone(void) {
log_info("/* %s */", __func__);
assert_se(setenv("TZ", ":UTC", 1) >= 0);
assert_se(in_utc_timezone());
assert_se(streq(tzname[0], "UTC"));
assert_se(streq(tzname[1], "UTC"));
assert_se(timezone == 0);
assert_se(daylight == 0);
assert_se(setenv("TZ", "Europe/Berlin", 1) >= 0);
assert_se(!in_utc_timezone());
assert_se(streq(tzname[0], "CET"));
assert_se(streq(tzname[1], "CEST"));
assert_se(unsetenv("TZ") >= 0);
}
int main(int argc, char *argv[]) {
uintmax_t x;
log_info("realtime=" USEC_FMT "\n"
"monotonic=" USEC_FMT "\n"
"boottime=" USEC_FMT "\n",
now(CLOCK_REALTIME),
now(CLOCK_MONOTONIC),
now(clock_boottime_or_monotonic()));
test_parse_sec();
test_parse_sec_fix_0();
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_signed();
test_usec_sub_unsigned();
test_format_timestamp();
test_format_timestamp_utc();
test_deserialize_dual_timestamp();
test_usec_shift_clock();
test_in_utc_timezone();
/* 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;
}