tests/virtimetest.c

   1 /*
   2  * Copyright (C) 2011, 2014 Red Hat, Inc.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library.  If not, see
  16  * <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #include <config.h>
  20
  21 #include <signal.h>
  22
  23 #include "testutils.h"
  24 #include "virlog.h"
  25
  26 #include "virtime.h"
  27
  28 #define VIR_FROM_THIS VIR_FROM_RPC
  29
  30 VIR_LOG_INIT("tests.timetest");
  31
  32 struct testTimeFieldsData {
  33     unsigned long long when;
  34     struct tm fields;
  35 };
  36
  37 static int testTimeFields(const void *args)
  38 {
  39     const struct testTimeFieldsData *data = args;
  40     struct tm actual;
  41
  42     virTimeFieldsThen(data->when, &actual);
  43
  44 #define COMPARE(field) \
  45     do { \
  46         if (data->fields.field != actual.field) { \
  47             VIR_DEBUG("Expect " #field " %d got %d", \
  48                       data->fields.field, actual.field); \
  49             return -1; \
  50         } \
  51     } while (0)
  52
  53     /* tm_year value 0 is based off epoch 1900 */
  54     actual.tm_year += 1900;
  55     /* tm_mon is range 0-11, but we want 1-12 */
  56     actual.tm_mon += 1;
  57
  58     COMPARE(tm_year);
  59     COMPARE(tm_mon);
  60     COMPARE(tm_mday);
  61     COMPARE(tm_hour);
  62     COMPARE(tm_min);
  63     COMPARE(tm_sec);
  64
  65     return 0;
  66 }
  67
  68
  69 typedef struct {
  70     const char *zone;
  71     long offset;
  72 } testTimeLocalOffsetData;
  73
  74 static int
  75 testTimeLocalOffset(const void *args)
  76 {
  77     const testTimeLocalOffsetData *data = args;
  78     long actual;
  79
  80     if (g_setenv("TZ", data->zone, TRUE) == FALSE) {
  81         perror("g_setenv");
  82         return -1;
  83     }
  84     tzset();
  85
  86     if (virTimeLocalOffsetFromUTC(&actual) < 0)
  87         return -1;
  88
  89     if (data->offset != actual) {
  90         VIR_DEBUG("Expect Offset %ld got %ld",
  91                   data->offset, actual);
  92         return -1;
  93     }
  94     return 0;
  95 }
  96
  97
  98 /* return true if the date is Jan 1 or Dec 31 (localtime) */
  99 static bool
 100 isNearYearEnd(void)
 101 {
 102     g_autoptr(GDateTime) now = g_date_time_new_now_local();
 103
 104     return ((g_date_time_get_month(now) == 1 &&
 105              g_date_time_get_day_of_month(now) == 1) ||
 106             (g_date_time_get_month(now) == 12 &&
 107              g_date_time_get_day_of_month(now) == 31));
 108 }
 109
 110
 111 static int
 112 mymain(void)
 113 {
 114     int ret = 0;
 115
 116 #ifndef WIN32
 117     signal(SIGPIPE, SIG_IGN);
 118 #endif /* WIN32 */
 119
 120 #define TEST_FIELDS(ts, year, mon, day, hour, min, sec) \
 121     do { \
 122         struct testTimeFieldsData data = { \
 123             .when = ts, \
 124             .fields = { \
 125                 .tm_year = year, \
 126                 .tm_mon = mon, \
 127                 .tm_mday = day, \
 128                 .tm_hour = hour, \
 129                 .tm_min = min, \
 130                 .tm_sec = sec, \
 131                 .tm_wday = 0, \
 132                 .tm_yday = 0, \
 133                 .tm_isdst = 0, \
 134             }, \
 135         }; \
 136         if (virTestRun("Test fields " #ts " " #year " ", testTimeFields, &data) < 0) \
 137             ret = -1; \
 138     } while (0)
 139
 140     TEST_FIELDS(0ull,           1970,  1,  1,  0,  0,  0);
 141     TEST_FIELDS(5000ull,        1970,  1,  1,  0,  0,  5);
 142     TEST_FIELDS(3605000ull,     1970,  1,  1,  1,  0,  5);
 143     TEST_FIELDS(86405000ull,    1970,  1,  2,  0,  0,  5);
 144     TEST_FIELDS(31536000000ull, 1971,  1,  1,  0,  0,  0);
 145
 146     TEST_FIELDS(30866399000ull,  1970, 12, 24,  5, 59, 59);
 147     TEST_FIELDS(123465599000ull, 1973, 11, 29, 23, 59, 59);
 148     TEST_FIELDS(155001599000ull, 1974, 11, 29, 23, 59, 59);
 149
 150     TEST_FIELDS(186537599000ull,  1975, 11, 29, 23, 59, 59);
 151     TEST_FIELDS(344390399000ull,  1980, 11, 29, 23, 59, 59);
 152     TEST_FIELDS(1203161493000ull, 2008,  2, 16, 11, 31, 33);
 153     TEST_FIELDS(1234567890000ull, 2009,  2, 13, 23, 31, 30);
 154
 155     TEST_FIELDS(1322524800000ull, 2011, 11, 29,  0,  0,  0);
 156     TEST_FIELDS(1322611199000ull, 2011, 11, 29, 23, 59, 59);
 157
 158     TEST_FIELDS(2147483648000ull, 2038,  1, 19,  3, 14,  8);
 159
 160 #define TEST_LOCALOFFSET(tz, off) \
 161     do { \
 162        testTimeLocalOffsetData data = { \
 163            .zone =  tz, \
 164            .offset = off, \
 165         }; \
 166         if (virTestRun("Test localtime offset for " #tz, \
 167                        testTimeLocalOffset, &data) < 0) \
 168             ret = -1; \
 169     } while (0)
 170
 171     TEST_LOCALOFFSET("VIR00:30", -30 * 60);
 172     TEST_LOCALOFFSET("VIR01:30", -90 * 60);
 173     TEST_LOCALOFFSET("VIR05:00", (-5 * 60) * 60);
 174     TEST_LOCALOFFSET("UTC", 0);
 175     TEST_LOCALOFFSET("VIR-00:30", 30 * 60);
 176     TEST_LOCALOFFSET("VIR-01:30", 90 * 60);
 177
 178     /* experiments have shown that the following tests will fail
 179      * during certain hours of Dec 31 or Jan 1 (depending on the
 180      * TZ setting in the shell running the test, but in general
 181      * for a period that apparently starts at 00:00:00 UTC Jan 1
 182      * and continues for 1 - 2 hours). We've determined this is
 183      * due to our inability to specify a timezone with DST on/off
 184      * settings that make it truly *always* on DST - i.e. it is a
 185      * failing of the test data, *not* of the function we are
 186      * testing. So to test as much as possible, we still run these
 187      * tests, except on Dec 31 and Jan 1.
 188      */
 189     if (!isNearYearEnd()) {
 190         /* test DST processing with timezones that always
 191          * have DST in effect; what's more, cover a zone with
 192          * with an unusual DST different than a usual one hour
 193          *
 194          * These tests originally used '0' as the first day,
 195          * but changed to '1' due to GLib GTimeZone parsing bug:
 196          *  https://gitlab.gnome.org/GNOME/glib/issues/1999
 197          *
 198          * Once we depend on a new enough GLib (>= 2.63.4), we
 199          * can put them back to 0 again.
 200          */
 201         TEST_LOCALOFFSET("VIR-00:30VID,1/00:00:00,364/23:59:59",
 202                 ((1 * 60) + 30) * 60);
 203         TEST_LOCALOFFSET("VIR-02:30VID,1/00:00:00,364/23:59:59",
 204                 ((3 * 60) + 30) * 60);
 205         TEST_LOCALOFFSET("VIR-02:30VID-04:30,1/00:00:00,364/23:59:59",
 206                 ((4 * 60) + 30) * 60);
 207         TEST_LOCALOFFSET("VIR-12:00VID-13:00,1/00:00:00,364/23:59:59",
 208                 ((13 * 60) +  0) * 60);
 209         TEST_LOCALOFFSET("VIR02:45VID00:45,1/00:00:00,364/23:59:59",
 210                          -45 * 60);
 211         TEST_LOCALOFFSET("VIR05:00VID04:00,1/00:00:00,364/23:59:59",
 212                          ((-4 * 60) +  0) * 60);
 213         TEST_LOCALOFFSET("VIR11:00VID10:00,1/00:00:00,364/23:59:59",
 214                          ((-10 * 60) +  0) * 60);
 215     }
 216
 217     return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
 218 }
 219
 220 VIR_TEST_MAIN(mymain)