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libvirt/tests/virtimetest.c

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/*
* Copyright (C) 2011, 2014 Red Hat, Inc.
*
* This library 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.
*
* This library 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 this library. If not, see
* <http://www.gnu.org/licenses/>.
*
* Author: Daniel P. Berrange <berrange@redhat.com>
*/
#include <config.h>
#include <stdlib.h>
#include <signal.h>
#include "testutils.h"
#include "virerror.h"
#include "viralloc.h"
#include "virlog.h"
#include "virtime.h"
#define VIR_FROM_THIS VIR_FROM_RPC
VIR_LOG_INIT("tests.timetest");
struct testTimeFieldsData {
unsigned long long when;
struct tm fields;
};
static int testTimeFields(const void *args)
{
const struct testTimeFieldsData *data = args;
struct tm actual;
virTimeFieldsThen(data->when, &actual);
#define COMPARE(field) \
do { \
if (data->fields.field != actual.field) { \
VIR_DEBUG("Expect " #field " %d got %d", \
data->fields.field, actual.field); \
return -1; \
} \
} while (0)
/* tm_year value 0 is based off epoch 1900 */
actual.tm_year += 1900;
/* tm_mon is range 0-11, but we want 1-12 */
actual.tm_mon += 1;
COMPARE(tm_year);
COMPARE(tm_mon);
COMPARE(tm_mday);
COMPARE(tm_hour);
COMPARE(tm_min);
COMPARE(tm_sec);
return 0;
}
typedef struct {
const char *zone;
long offset;
} testTimeLocalOffsetData;
static int
testTimeLocalOffset(const void *args)
{
const testTimeLocalOffsetData *data = args;
long actual;
if (setenv("TZ", data->zone, 1) < 0) {
perror("setenv");
return -1;
}
tzset();
if (virTimeLocalOffsetFromUTC(&actual) < 0) {
return -1;
}
if (data->offset != actual) {
VIR_DEBUG("Expect Offset %ld got %ld\n",
data->offset, actual);
return -1;
}
return 0;
}
/* return true if the date is Jan 1 or Dec 31 (localtime) */
static bool
isNearYearEnd(void)
{
time_t current = time(NULL);
struct tm timeinfo;
if (current == (time_t)-1) {
VIR_DEBUG("time() failed");
return false;
}
if (!localtime_r(&current, &timeinfo)) {
VIR_DEBUG("localtime_r() failed");
return false;
}
return (timeinfo.tm_mon == 0 && timeinfo.tm_mday == 1) ||
(timeinfo.tm_mon == 11 && timeinfo.tm_mday == 31);
}
static int
mymain(void)
{
int ret = 0;
signal(SIGPIPE, SIG_IGN);
#define TEST_FIELDS(ts, year, mon, day, hour, min, sec) \
do { \
struct testTimeFieldsData data = { \
.when = ts, \
.fields = { \
.tm_year = year, \
.tm_mon = mon, \
.tm_mday = day, \
.tm_hour = hour, \
.tm_min = min, \
.tm_sec = sec, \
.tm_wday = 0, \
.tm_yday = 0, \
.tm_isdst = 0, \
}, \
}; \
if (virtTestRun("Test fields " #ts " " #year " ", testTimeFields, &data) < 0) \
ret = -1; \
} while (0)
TEST_FIELDS(0ull, 1970, 1, 1, 0, 0, 0);
TEST_FIELDS(5000ull, 1970, 1, 1, 0, 0, 5);
TEST_FIELDS(3605000ull, 1970, 1, 1, 1, 0, 5);
TEST_FIELDS(86405000ull, 1970, 1, 2, 0, 0, 5);
TEST_FIELDS(31536000000ull, 1971, 1, 1, 0, 0, 0);
TEST_FIELDS(30866399000ull, 1970, 12, 24, 5, 59, 59);
TEST_FIELDS(123465599000ull, 1973, 11, 29, 23, 59, 59);
TEST_FIELDS(155001599000ull, 1974, 11, 29, 23, 59, 59);
TEST_FIELDS(186537599000ull, 1975, 11, 29, 23, 59, 59);
TEST_FIELDS(344390399000ull, 1980, 11, 29, 23, 59, 59);
TEST_FIELDS(1203161493000ull, 2008, 2, 16, 11, 31, 33);
TEST_FIELDS(1234567890000ull, 2009, 2, 13, 23, 31, 30);
TEST_FIELDS(1322524800000ull, 2011, 11, 29, 0, 0, 0);
TEST_FIELDS(1322611199000ull, 2011, 11, 29, 23, 59, 59);
TEST_FIELDS(2147483648000ull, 2038, 1, 19, 3, 14, 8);
#define TEST_LOCALOFFSET(tz, off) \
do { \
testTimeLocalOffsetData data = { \
.zone = tz, \
.offset = off, \
}; \
if (virtTestRun("Test localtime offset for " #tz, \
testTimeLocalOffset, &data) < 0) \
ret = -1; \
} while (0)
TEST_LOCALOFFSET("VIR00:30", -30 * 60);
TEST_LOCALOFFSET("VIR01:30", -90 * 60);
TEST_LOCALOFFSET("VIR05:00", (-5 * 60) * 60);
TEST_LOCALOFFSET("UTC", 0);
TEST_LOCALOFFSET("VIR-00:30", 30 * 60);
TEST_LOCALOFFSET("VIR-01:30", 90 * 60);
/* test DST processing with timezones that always
* have DST in effect; what's more, cover a zone with
* with an unusual DST different than a usual one hour
*/
TEST_LOCALOFFSET("VIR-00:30VID,0/00:00:00,365/23:59:59",
((1 * 60) + 30) * 60);
TEST_LOCALOFFSET("VIR-02:30VID,0/00:00:00,365/23:59:59",
((3 * 60) + 30) * 60);
TEST_LOCALOFFSET("VIR-02:30VID-04:30,0/00:00:00,365/23:59:59",
((4 * 60) + 30) * 60);
TEST_LOCALOFFSET("VIR-12:00VID-13:00,0/00:00:00,365/23:59:59",
((13 * 60) + 0) * 60);
if (!isNearYearEnd()) {
/* experiments have shown that the following tests will fail
* during certain hours of Dec 31 or Jan 1 (depending on the
* TZ setting in the shell running the test, but in general
* for a period that apparently starts at 00:00:00 UTC Jan 1
* and continues for 1 - 2 hours). We've determined this is
* due to our inability to specify a timezone with DST on/off
* settings that make it truly *always* on DST - i.e. it is a
* failing of the test data, *not* of the function we are
* testing. So to test as much as possible, we still run these
* tests, except on Dec 31 and Jan 1.
*/
TEST_LOCALOFFSET("VIR02:45VID00:45,0/00:00:00,365/23:59:59",
-45 * 60);
TEST_LOCALOFFSET("VIR05:00VID04:00,0/00:00:00,365/23:59:59",
((-4 * 60) + 0) * 60);
TEST_LOCALOFFSET("VIR11:00VID10:00,0/00:00:00,365/23:59:59",
((-10 * 60) + 0) * 60);
}
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIRT_TEST_MAIN(mymain)
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