src/test/test-time.c

   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
  20 #include "strv.h"
  21 #include "time-util.h"
  22
  23 static void test_parse_sec(void) {
  24         usec_t u;
  25
  26         assert_se(parse_sec("5s", &u) >= 0);
  27         assert_se(u == 5 * USEC_PER_SEC);
  28         assert_se(parse_sec("5s500ms", &u) >= 0);
  29         assert_se(u == 5 * USEC_PER_SEC + 500 * USEC_PER_MSEC);
  30         assert_se(parse_sec(" 5s 500ms  ", &u) >= 0);
  31         assert_se(u == 5 * USEC_PER_SEC + 500 * USEC_PER_MSEC);
  32         assert_se(parse_sec(" 5.5s  ", &u) >= 0);
  33         assert_se(u == 5 * USEC_PER_SEC + 500 * USEC_PER_MSEC);
  34         assert_se(parse_sec(" 5.5s 0.5ms ", &u) >= 0);
  35         assert_se(u == 5 * USEC_PER_SEC + 500 * USEC_PER_MSEC + 500);
  36         assert_se(parse_sec(" .22s ", &u) >= 0);
  37         assert_se(u == 220 * USEC_PER_MSEC);
  38         assert_se(parse_sec(" .50y ", &u) >= 0);
  39         assert_se(u == USEC_PER_YEAR / 2);
  40         assert_se(parse_sec("2.5", &u) >= 0);
  41         assert_se(u == 2500 * USEC_PER_MSEC);
  42         assert_se(parse_sec(".7", &u) >= 0);
  43         assert_se(u == 700 * USEC_PER_MSEC);
  44         assert_se(parse_sec("infinity", &u) >= 0);
  45         assert_se(u == USEC_INFINITY);
  46         assert_se(parse_sec(" infinity ", &u) >= 0);
  47         assert_se(u == USEC_INFINITY);
  48
  49         assert_se(parse_sec(" xyz ", &u) < 0);
  50         assert_se(parse_sec("", &u) < 0);
  51         assert_se(parse_sec(" . ", &u) < 0);
  52         assert_se(parse_sec(" 5. ", &u) < 0);
  53         assert_se(parse_sec(".s ", &u) < 0);
  54         assert_se(parse_sec(" infinity .7", &u) < 0);
  55         assert_se(parse_sec(".3 infinity", &u) < 0);
  56 }
  57
  58 static void test_parse_time(void) {
  59         usec_t u;
  60
  61         assert_se(parse_time("5", &u, 1) >= 0);
  62         assert_se(u == 5);
  63
  64         assert_se(parse_time("5", &u, USEC_PER_MSEC) >= 0);
  65         assert_se(u == 5 * USEC_PER_MSEC);
  66
  67         assert_se(parse_time("5", &u, USEC_PER_SEC) >= 0);
  68         assert_se(u == 5 * USEC_PER_SEC);
  69
  70         assert_se(parse_time("5s", &u, 1) >= 0);
  71         assert_se(u == 5 * USEC_PER_SEC);
  72
  73         assert_se(parse_time("5s", &u, USEC_PER_SEC) >= 0);
  74         assert_se(u == 5 * USEC_PER_SEC);
  75
  76         assert_se(parse_time("5s", &u, USEC_PER_MSEC) >= 0);
  77         assert_se(u == 5 * USEC_PER_SEC);
  78 }
  79
  80 static void test_parse_nsec(void) {
  81         nsec_t u;
  82
  83         assert_se(parse_nsec("5s", &u) >= 0);
  84         assert_se(u == 5 * NSEC_PER_SEC);
  85         assert_se(parse_nsec("5s500ms", &u) >= 0);
  86         assert_se(u == 5 * NSEC_PER_SEC + 500 * NSEC_PER_MSEC);
  87         assert_se(parse_nsec(" 5s 500ms  ", &u) >= 0);
  88         assert_se(u == 5 * NSEC_PER_SEC + 500 * NSEC_PER_MSEC);
  89         assert_se(parse_nsec(" 5.5s  ", &u) >= 0);
  90         assert_se(u == 5 * NSEC_PER_SEC + 500 * NSEC_PER_MSEC);
  91         assert_se(parse_nsec(" 5.5s 0.5ms ", &u) >= 0);
  92         assert_se(u == 5 * NSEC_PER_SEC + 500 * NSEC_PER_MSEC + 500 * NSEC_PER_USEC);
  93         assert_se(parse_nsec(" .22s ", &u) >= 0);
  94         assert_se(u == 220 * NSEC_PER_MSEC);
  95         assert_se(parse_nsec(" .50y ", &u) >= 0);
  96         assert_se(u == NSEC_PER_YEAR / 2);
  97         assert_se(parse_nsec("2.5", &u) >= 0);
  98         assert_se(u == 2);
  99         assert_se(parse_nsec(".7", &u) >= 0);
 100         assert_se(u == 0);
 101         assert_se(parse_nsec("infinity", &u) >= 0);
 102         assert_se(u == NSEC_INFINITY);
 103         assert_se(parse_nsec(" infinity ", &u) >= 0);
 104         assert_se(u == NSEC_INFINITY);
 105
 106         assert_se(parse_nsec(" xyz ", &u) < 0);
 107         assert_se(parse_nsec("", &u) < 0);
 108         assert_se(parse_nsec(" . ", &u) < 0);
 109         assert_se(parse_nsec(" 5. ", &u) < 0);
 110         assert_se(parse_nsec(".s ", &u) < 0);
 111         assert_se(parse_nsec(" infinity .7", &u) < 0);
 112         assert_se(parse_nsec(".3 infinity", &u) < 0);
 113 }
 114
 115 static void test_format_timespan_one(usec_t x, usec_t accuracy) {
 116         char *r;
 117         char l[FORMAT_TIMESPAN_MAX];
 118         usec_t y;
 119
 120         log_info(USEC_FMT"     (at accuracy "USEC_FMT")", x, accuracy);
 121
 122         r = format_timespan(l, sizeof(l), x, accuracy);
 123         assert_se(r);
 124
 125         log_info(" = <%s>", l);
 126
 127         assert_se(parse_sec(l, &y) >= 0);
 128
 129         log_info(" = "USEC_FMT, y);
 130
 131         if (accuracy <= 0)
 132                 accuracy = 1;
 133
 134         assert_se(x / accuracy == y / accuracy);
 135 }
 136
 137 static void test_format_timespan(usec_t accuracy) {
 138         test_format_timespan_one(0, accuracy);
 139         test_format_timespan_one(1, accuracy);
 140         test_format_timespan_one(1*USEC_PER_SEC, accuracy);
 141         test_format_timespan_one(999*USEC_PER_MSEC, accuracy);
 142         test_format_timespan_one(1234567, accuracy);
 143         test_format_timespan_one(12, accuracy);
 144         test_format_timespan_one(123, accuracy);
 145         test_format_timespan_one(1234, accuracy);
 146         test_format_timespan_one(12345, accuracy);
 147         test_format_timespan_one(123456, accuracy);
 148         test_format_timespan_one(1234567, accuracy);
 149         test_format_timespan_one(12345678, accuracy);
 150         test_format_timespan_one(1200000, accuracy);
 151         test_format_timespan_one(1230000, accuracy);
 152         test_format_timespan_one(1230000, accuracy);
 153         test_format_timespan_one(1234000, accuracy);
 154         test_format_timespan_one(1234500, accuracy);
 155         test_format_timespan_one(1234560, accuracy);
 156         test_format_timespan_one(1234567, accuracy);
 157         test_format_timespan_one(986087, accuracy);
 158         test_format_timespan_one(500 * USEC_PER_MSEC, accuracy);
 159         test_format_timespan_one(9*USEC_PER_YEAR/5 - 23, accuracy);
 160         test_format_timespan_one(USEC_INFINITY, accuracy);
 161 }
 162
 163 static void test_timezone_is_valid(void) {
 164         assert_se(timezone_is_valid("Europe/Berlin"));
 165         assert_se(timezone_is_valid("Australia/Sydney"));
 166         assert_se(!timezone_is_valid("Europe/Do not exist"));
 167 }
 168
 169 static void test_get_timezones(void) {
 170         _cleanup_strv_free_ char **zones = NULL;
 171         int r;
 172         char **zone;
 173
 174         r = get_timezones(&zones);
 175         assert_se(r == 0);
 176
 177         STRV_FOREACH(zone, zones)
 178                 assert_se(timezone_is_valid(*zone));
 179 }
 180
 181 static void test_usec_add(void) {
 182         assert_se(usec_add(0, 0) == 0);
 183         assert_se(usec_add(1, 4) == 5);
 184         assert_se(usec_add(USEC_INFINITY, 5) == USEC_INFINITY);
 185         assert_se(usec_add(5, USEC_INFINITY) == USEC_INFINITY);
 186         assert_se(usec_add(USEC_INFINITY-5, 2) == USEC_INFINITY-3);
 187         assert_se(usec_add(USEC_INFINITY-2, 2) == USEC_INFINITY);
 188         assert_se(usec_add(USEC_INFINITY-1, 2) == USEC_INFINITY);
 189         assert_se(usec_add(USEC_INFINITY, 2) == USEC_INFINITY);
 190 }
 191
 192 static void test_usec_sub(void) {
 193         assert_se(usec_sub(0, 0) == 0);
 194         assert_se(usec_sub(4, 1) == 3);
 195         assert_se(usec_sub(4, 4) == 0);
 196         assert_se(usec_sub(4, 5) == 0);
 197         assert_se(usec_sub(USEC_INFINITY-3, -3) == USEC_INFINITY);
 198         assert_se(usec_sub(USEC_INFINITY-3, -3) == USEC_INFINITY);
 199         assert_se(usec_sub(USEC_INFINITY-3, -4) == USEC_INFINITY);
 200         assert_se(usec_sub(USEC_INFINITY-3, -5) == USEC_INFINITY);
 201         assert_se(usec_sub(USEC_INFINITY, 5) == USEC_INFINITY);
 202 }
 203
 204 int main(int argc, char *argv[]) {
 205         uintmax_t x;
 206
 207         test_parse_sec();
 208         test_parse_time();
 209         test_parse_nsec();
 210         test_format_timespan(1);
 211         test_format_timespan(USEC_PER_MSEC);
 212         test_format_timespan(USEC_PER_SEC);
 213         test_timezone_is_valid();
 214         test_get_timezones();
 215         test_usec_add();
 216         test_usec_sub();
 217
 218         /* Ensure time_t is signed */
 219         assert_cc((time_t) -1 < (time_t) 1);
 220
 221         /* Ensure TIME_T_MAX works correctly */
 222         x = (uintmax_t) TIME_T_MAX;
 223         x++;
 224         assert((time_t) x < 0);
 225
 226         return 0;
 227 }