lib/tests/date_test.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle 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
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * Tests core_date class.
  19  *
  20  * @package   core
  21  * @copyright 2015 Totara Learning Solutions Ltd {@link http://www.totaralms.com/}
  22  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  * @author    Petr Skoda <petr.skoda@totaralms.com>
  24  */
  25
  26 defined('MOODLE_INTERNAL') || die();
  27
  28 /**
  29  * Tests core_date class.
  30  *
  31  * @package   core
  32  * @copyright 2015 Totara Learning Solutions Ltd {@link http://www.totaralms.com/}
  33  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  34  * @author    Petr Skoda <petr.skoda@totaralms.com>
  35  */
  36 class core_date_testcase extends advanced_testcase {
  37     public function test_get_default_php_timezone() {
  38         $this->resetAfterTest();
  39
  40         $origtz = core_date::get_default_php_timezone();
  41         $this->assertNotEmpty($origtz);
  42
  43         $this->setTimezone('Pacific/Auckland', 'Europe/Prague');
  44         $this->assertSame('Europe/Prague', core_date::get_default_php_timezone());
  45
  46         $this->setTimezone('Pacific/Auckland', 'UTC');
  47         $this->assertSame('UTC', core_date::get_default_php_timezone());
  48
  49         $this->setTimezone('Pacific/Auckland', 'GMT');
  50         $this->assertSame('GMT', core_date::get_default_php_timezone());
  51     }
  52
  53     public function test_normalise_timezone() {
  54         $this->resetAfterTest();
  55
  56         $this->setTimezone('Pacific/Auckland');
  57         $this->assertSame('Pacific/Auckland', core_date::normalise_timezone('Pacific/Auckland'));
  58         $this->assertSame('Pacific/Auckland', core_date::normalise_timezone('99'));
  59         $this->assertSame('Pacific/Auckland', core_date::normalise_timezone(99));
  60         $this->assertSame('GMT', core_date::normalise_timezone('GMT'));
  61         $this->assertSame('UTC', core_date::normalise_timezone('UTC'));
  62         $this->assertSame('Pacific/Auckland', core_date::normalise_timezone('xxxxxxxx'));
  63         $this->assertSame('Europe/Berlin', core_date::normalise_timezone('Central European Time'));
  64         $this->assertSame('Etc/GMT', core_date::normalise_timezone('0'));
  65         $this->assertSame('Etc/GMT', core_date::normalise_timezone('0.0'));
  66         $this->assertSame('Etc/GMT-2', core_date::normalise_timezone(2));
  67         $this->assertSame('Etc/GMT-2', core_date::normalise_timezone('2.0'));
  68         $this->assertSame('Etc/GMT+2', core_date::normalise_timezone(-2));
  69         $this->assertSame('Etc/GMT+2', core_date::normalise_timezone('-2.0'));
  70         $this->assertSame('Etc/GMT+4', core_date::normalise_timezone(-4));
  71         $this->assertSame('Etc/GMT-2', core_date::normalise_timezone('UTC+2'));
  72         $this->assertSame('Etc/GMT+2', core_date::normalise_timezone('UTC-2'));
  73         $this->assertSame('Etc/GMT-2', core_date::normalise_timezone('GMT+2'));
  74         $this->assertSame('Etc/GMT+2', core_date::normalise_timezone('GMT-2'));
  75         $this->assertSame('Etc/GMT+12', core_date::normalise_timezone(-12));
  76         $this->assertSame('Pacific/Auckland', core_date::normalise_timezone(-13));
  77         $this->assertSame('Pacific/Auckland', core_date::normalise_timezone(-14));
  78         $this->assertSame('Etc/GMT-12', core_date::normalise_timezone(12));
  79         $this->assertSame('Etc/GMT-13', core_date::normalise_timezone(13));
  80         $this->assertSame('Pacific/Auckland', core_date::normalise_timezone(14));
  81
  82         $this->assertSame('Asia/Kabul', core_date::normalise_timezone(4.5));
  83         $this->assertSame('Asia/Kolkata', core_date::normalise_timezone(5.5));
  84         $this->assertSame('Asia/Rangoon', core_date::normalise_timezone(6.5));
  85         $this->assertSame('Australia/Darwin', core_date::normalise_timezone('9.5'));
  86
  87         $this->setTimezone('99', 'Pacific/Auckland');
  88         $this->assertSame('Pacific/Auckland', core_date::normalise_timezone('Pacific/Auckland'));
  89         $this->assertSame('Pacific/Auckland', core_date::normalise_timezone('99'));
  90         $this->assertSame('Pacific/Auckland', core_date::normalise_timezone(99));
  91         $this->assertSame('GMT', core_date::normalise_timezone('GMT'));
  92         $this->assertSame('UTC', core_date::normalise_timezone('UTC'));
  93         $this->assertSame('Pacific/Auckland', core_date::normalise_timezone('xxxxxxxx'));
  94         $this->assertSame('Europe/Berlin', core_date::normalise_timezone('Central European Time'));
  95         $this->assertSame('Etc/GMT', core_date::normalise_timezone('0'));
  96         $this->assertSame('Etc/GMT', core_date::normalise_timezone('0.0'));
  97         $this->assertSame('Etc/GMT-2', core_date::normalise_timezone(2));
  98         $this->assertSame('Etc/GMT-2', core_date::normalise_timezone('2.0'));
  99         $this->assertSame('Etc/GMT+2', core_date::normalise_timezone(-2));
 100         $this->assertSame('Etc/GMT+2', core_date::normalise_timezone('-2.0'));
 101         $this->assertSame('Etc/GMT-2', core_date::normalise_timezone('UTC+2'));
 102         $this->assertSame('Etc/GMT+2', core_date::normalise_timezone('UTC-2'));
 103         $this->assertSame('Etc/GMT-2', core_date::normalise_timezone('GMT+2'));
 104         $this->assertSame('Etc/GMT+2', core_date::normalise_timezone('GMT-2'));
 105         $this->assertSame('Etc/GMT+12', core_date::normalise_timezone(-12));
 106         $this->assertSame('Pacific/Auckland', core_date::normalise_timezone(-13));
 107         $this->assertSame('Pacific/Auckland', core_date::normalise_timezone(-14));
 108         $this->assertSame('Etc/GMT-12', core_date::normalise_timezone(12));
 109         $this->assertSame('Etc/GMT-13', core_date::normalise_timezone(13));
 110         $this->assertSame('Pacific/Auckland', core_date::normalise_timezone(14));
 111
 112         $this->setTimezone('Pacific/Auckland', 'Pacific/Auckland');
 113         $tz = new DateTimeZone('Pacific/Auckland');
 114         $this->assertSame('Pacific/Auckland', core_date::normalise_timezone($tz));
 115     }
 116
 117     public function test_windows_conversion() {
 118         $file = __DIR__ . '/fixtures/timezonewindows.xml';
 119
 120         $contents = file_get_contents($file);
 121         preg_match_all('/<mapZone other="([^"]+)" territory="001" type="([^"]+)"\/>/', $contents, $matches, PREG_SET_ORDER);
 122
 123         $this->assertCount(104, $matches); // NOTE: If the file contents change edit the core_date class and update this.
 124
 125         foreach ($matches as $match) {
 126             $result = core_date::normalise_timezone($match[1]);
 127             if ($result == $match[2]) {
 128                 $this->assertSame($match[2], $result);
 129             } else {
 130                 $data = new DateTime('now', new DateTimeZone($match[2]));
 131                 $expectedoffset = $data->getOffset();
 132                 $data = new DateTime('now', new DateTimeZone($result));
 133                 $resultoffset = $data->getOffset();
 134                 $this->assertSame($expectedoffset, $resultoffset, "$match[1] is expected to be converted to $match[2] not $result");
 135             }
 136         }
 137     }
 138
 139     /**
 140      * Sanity test for PHP stuff.
 141      */
 142     public function test_php_gmt_offsets() {
 143         $this->resetAfterTest();
 144
 145         $this->setTimezone('Pacific/Auckland', 'Pacific/Auckland');
 146
 147         for ($i = -12; $i < 0; $i++) {
 148             $date = new DateTime('now', new DateTimeZone("Etc/GMT{$i}"));
 149             $this->assertSame(- $i * 60 * 60, $date->getOffset());
 150             $date = new DateTime('now', new DateTimeZone(core_date::normalise_timezone("GMT{$i}")));
 151             $this->assertSame($i * 60 * 60, $date->getOffset());
 152             $date = new DateTime('now', new DateTimeZone(core_date::normalise_timezone("UTC{$i}")));
 153             $this->assertSame($i * 60 * 60, $date->getOffset());
 154         }
 155
 156         $date = new DateTime('now', new DateTimeZone('Etc/GMT'));
 157         $this->assertSame(0, $date->getOffset());
 158
 159         for ($i = 1; $i <= 12; $i++) {
 160             $date = new DateTime('now', new DateTimeZone("Etc/GMT+{$i}"));
 161             $this->assertSame(- $i * 60 * 60, $date->getOffset());
 162             $date = new DateTime('now', new DateTimeZone(core_date::normalise_timezone("GMT+{$i}")));
 163             $this->assertSame($i * 60 * 60, $date->getOffset());
 164             $date = new DateTime('now', new DateTimeZone(core_date::normalise_timezone("UTC+{$i}")));
 165             $this->assertSame($i * 60 * 60, $date->getOffset());
 166         }
 167     }
 168
 169     public function test_get_localised_timezone() {
 170         $this->resetAfterTest();
 171
 172         $this->setTimezone('Pacific/Auckland', 'Pacific/Auckland');
 173
 174         $result = core_date::get_localised_timezone('Pacific/Auckland');
 175         $this->assertSame('Pacific/Auckland', $result);
 176
 177         $result = core_date::get_localised_timezone('99');
 178         $this->assertSame('Server timezone (Pacific/Auckland)', $result);
 179
 180         $result = core_date::get_localised_timezone(99);
 181         $this->assertSame('Server timezone (Pacific/Auckland)', $result);
 182
 183         $result = core_date::get_localised_timezone('Etc/GMT-1');
 184         $this->assertSame('UTC+1', $result);
 185
 186         $result = core_date::get_localised_timezone('Etc/GMT+2');
 187         $this->assertSame('UTC-2', $result);
 188
 189         $result = core_date::get_localised_timezone('GMT');
 190         $this->assertSame('UTC', $result);
 191
 192         $result = core_date::get_localised_timezone('Etc/GMT');
 193         $this->assertSame('UTC', $result);
 194     }
 195
 196     public function test_get_list_of_timezones() {
 197         $this->resetAfterTest();
 198
 199         $this->setTimezone('Pacific/Auckland', 'Pacific/Auckland');
 200
 201         $phpzones = DateTimeZone::listIdentifiers();
 202
 203         $zones = core_date::get_list_of_timezones();
 204         $this->assertSame(count($phpzones), count($zones));
 205         foreach ($zones as $zone => $zonename) {
 206             $this->assertSame($zone, $zonename); // The same in English!
 207             $this->assertContains($zone, $phpzones); // No extras expected.
 208         }
 209
 210         $this->assertSame($zones, core_date::get_list_of_timezones(null, false));
 211
 212         $nnzones = core_date::get_list_of_timezones(null, true);
 213         $last = $nnzones['99'];
 214         $this->assertSame('Server timezone (Pacific/Auckland)', $last);
 215         unset($nnzones['99']);
 216         $this->assertSame($zones, $nnzones);
 217
 218         $nnzones = core_date::get_list_of_timezones('99', false);
 219         $last = $nnzones['99'];
 220         $this->assertSame('Server timezone (Pacific/Auckland)', $last);
 221         unset($nnzones['99']);
 222         $this->assertSame($zones, $nnzones);
 223
 224         $xxzones = core_date::get_list_of_timezones('xx', false);
 225         $xx = $xxzones['xx'];
 226         $this->assertSame('Invalid timezone "xx"', $xx);
 227         unset($xxzones['xx']);
 228         $this->assertSame($zones, $xxzones);
 229
 230         $xxzones = core_date::get_list_of_timezones('1', false);
 231         $xx = $xxzones['1'];
 232         $this->assertSame('Invalid timezone "UTC+1.0"', $xx);
 233         unset($xxzones['1']);
 234         $this->assertSame($zones, $xxzones);
 235
 236         $xxzones = core_date::get_list_of_timezones('-1.5', false);
 237         $xx = $xxzones['-1.5'];
 238         $this->assertSame('Invalid timezone "UTC-1.5"', $xx);
 239         unset($xxzones['-1.5']);
 240         $this->assertSame($zones, $xxzones);
 241
 242     }
 243
 244     public function test_get_server_timezone() {
 245         global $CFG;
 246         $this->resetAfterTest();
 247
 248         $this->setTimezone('Pacific/Auckland', 'Pacific/Auckland');
 249         $this->assertSame('Pacific/Auckland', core_date::get_server_timezone());
 250
 251         $this->setTimezone('Pacific/Auckland', 'Europe/Prague');
 252         $this->assertSame('Pacific/Auckland', core_date::get_server_timezone());
 253
 254         $this->setTimezone('99', 'Pacific/Auckland');
 255         $this->assertSame('Pacific/Auckland', core_date::get_server_timezone());
 256
 257         $this->setTimezone(99, 'Pacific/Auckland');
 258         $this->assertSame('Pacific/Auckland', core_date::get_server_timezone());
 259
 260         $this->setTimezone('Pacific/Auckland', 'Pacific/Auckland');
 261         unset($CFG->timezone);
 262         $this->assertSame('Pacific/Auckland', core_date::get_server_timezone());
 263
 264         // Admin should fix the settings.
 265         $this->setTimezone('xxx/zzzz', 'Europe/Prague');
 266         $this->assertSame('Europe/Prague', core_date::get_server_timezone());
 267     }
 268
 269     public function test_get_server_timezone_object() {
 270         $this->resetAfterTest();
 271
 272         $zones = core_date::get_list_of_timezones();
 273         foreach ($zones as $zone) {
 274             $this->setTimezone($zone, 'Pacific/Auckland');
 275             $tz = core_date::get_server_timezone_object();
 276             $this->assertInstanceOf('DateTimeZone', $tz);
 277             $this->assertSame($zone, $tz->getName());
 278         }
 279     }
 280
 281     public function test_set_default_server_timezone() {
 282         global $CFG;
 283         $this->resetAfterTest();
 284
 285         $this->setTimezone('Europe/Prague', 'Pacific/Auckland');
 286         unset($CFG->timezone);
 287         date_default_timezone_set('UTC');
 288         core_date::set_default_server_timezone();
 289         $this->assertSame('Pacific/Auckland', date_default_timezone_get());
 290
 291         $this->setTimezone('', 'Pacific/Auckland');
 292         date_default_timezone_set('UTC');
 293         core_date::set_default_server_timezone();
 294         $this->assertSame('Pacific/Auckland', date_default_timezone_get());
 295
 296         $this->setTimezone('99', 'Pacific/Auckland');
 297         date_default_timezone_set('UTC');
 298         core_date::set_default_server_timezone();
 299         $this->assertSame('Pacific/Auckland', date_default_timezone_get());
 300
 301         $this->setTimezone(99, 'Pacific/Auckland');
 302         date_default_timezone_set('UTC');
 303         core_date::set_default_server_timezone();
 304         $this->assertSame('Pacific/Auckland', date_default_timezone_get());
 305
 306         $this->setTimezone('Europe/Prague', 'Pacific/Auckland');
 307         $CFG->timezone = 'UTC';
 308         core_date::set_default_server_timezone();
 309         $this->assertSame('UTC', date_default_timezone_get());
 310
 311         $this->setTimezone('Europe/Prague', 'Pacific/Auckland');
 312         $CFG->timezone = 'Australia/Perth';
 313         core_date::set_default_server_timezone();
 314         $this->assertSame('Australia/Perth', date_default_timezone_get());
 315
 316         $this->setTimezone('0', 'Pacific/Auckland');
 317         date_default_timezone_set('UTC');
 318         core_date::set_default_server_timezone();
 319         $this->assertSame('Etc/GMT', date_default_timezone_get());
 320
 321         $this->setTimezone('1', 'Pacific/Auckland');
 322         date_default_timezone_set('UTC');
 323         core_date::set_default_server_timezone();
 324         $this->assertSame('Etc/GMT-1', date_default_timezone_get());
 325
 326         $this->setTimezone(1, 'Pacific/Auckland');
 327         date_default_timezone_set('UTC');
 328         core_date::set_default_server_timezone();
 329         $this->assertSame('Etc/GMT-1', date_default_timezone_get());
 330
 331         $this->setTimezone('1.0', 'Pacific/Auckland');
 332         date_default_timezone_set('UTC');
 333         core_date::set_default_server_timezone();
 334         $this->assertSame('Etc/GMT-1', date_default_timezone_get());
 335     }
 336
 337     public function test_get_user_timezone() {
 338         global $CFG, $USER;
 339         $this->resetAfterTest();
 340
 341         // Null parameter.
 342
 343         $this->setTimezone('Europe/Prague', 'Pacific/Auckland');
 344         $USER->timezone = 'Pacific/Auckland';
 345         $CFG->forcetimezone = '99';
 346         $this->assertSame('Pacific/Auckland', core_date::get_user_timezone(null));
 347         $this->assertSame('Pacific/Auckland', core_date::get_user_timezone());
 348
 349         $this->setTimezone('Europe/Prague', 'Pacific/Auckland');
 350         $USER->timezone = 'Pacific/Auckland';
 351         $CFG->forcetimezone = 'Europe/Berlin';
 352         $this->assertSame('Europe/Berlin', core_date::get_user_timezone(null));
 353         $this->assertSame('Europe/Berlin', core_date::get_user_timezone());
 354
 355         $this->setTimezone('Europe/Prague', 'Pacific/Auckland');
 356         $USER->timezone = 'Pacific/Auckland';
 357         $CFG->forcetimezone = 'xxx/yyy';
 358         $this->assertSame('Europe/Prague', core_date::get_user_timezone(null));
 359         $this->assertSame('Europe/Prague', core_date::get_user_timezone());
 360
 361         $this->setTimezone('Europe/Prague', 'Pacific/Auckland');
 362         $USER->timezone = 'abc/def';
 363         $CFG->forcetimezone = '99';
 364         $this->assertSame('Europe/Prague', core_date::get_user_timezone(null));
 365         $this->assertSame('Europe/Prague', core_date::get_user_timezone());
 366
 367         $this->setTimezone('xxx/yyy', 'Europe/London');
 368         $USER->timezone = 'abc/def';
 369         $CFG->forcetimezone = 'Europe/Berlin';
 370         $this->assertSame('Europe/Berlin', core_date::get_user_timezone(null));
 371         $this->assertSame('Europe/Berlin', core_date::get_user_timezone());
 372
 373         $this->setTimezone('xxx/yyy', 'Europe/London');
 374         $USER->timezone = 'abc/def';
 375         $CFG->forcetimezone = 99;
 376         $this->assertSame('Europe/London', core_date::get_user_timezone(null));
 377         $this->assertSame('Europe/London', core_date::get_user_timezone());
 378
 379         // User object parameter.
 380         $admin = get_admin();
 381
 382         $this->setTimezone('Europe/London');
 383         $USER->timezone = 'Pacific/Auckland';
 384         $CFG->forcetimezone = '99';
 385         $admin->timezone = 'Australia/Perth';
 386         $this->assertSame('Australia/Perth', core_date::get_user_timezone($admin));
 387
 388         $this->setTimezone('Europe/Prague');
 389         $USER->timezone = 'Pacific/Auckland';
 390         $CFG->forcetimezone = '99';
 391         $admin->timezone = '99';
 392         $this->assertSame('Europe/Prague', core_date::get_user_timezone($admin));
 393
 394         $this->setTimezone('99', 'Europe/London');
 395         $USER->timezone = 'Pacific/Auckland';
 396         $CFG->forcetimezone = '99';
 397         $admin->timezone = '99';
 398         $this->assertSame('Europe/London', core_date::get_user_timezone($admin));
 399
 400         $this->setTimezone('Europe/Prague');
 401         $USER->timezone = 'Pacific/Auckland';
 402         $CFG->forcetimezone = '99';
 403         $admin->timezone = 'xx/zz';
 404         $this->assertSame('Europe/Prague', core_date::get_user_timezone($admin));
 405
 406         $this->setTimezone('Europe/Prague');
 407         $USER->timezone = 'Pacific/Auckland';
 408         $CFG->forcetimezone = '99';
 409         unset($admin->timezone);
 410         $this->assertSame('Europe/Prague', core_date::get_user_timezone($admin));
 411
 412         $this->setTimezone('Europe/Prague');
 413         $USER->timezone = 'Pacific/Auckland';
 414         $CFG->forcetimezone = 'Europe/Berlin';
 415         $admin->timezone = 'Australia/Perth';
 416         $this->assertSame('Europe/Berlin', core_date::get_user_timezone($admin));
 417
 418         // Other scalar parameter.
 419
 420         $this->setTimezone('Europe/Prague');
 421         $CFG->forcetimezone = '99';
 422
 423         $USER->timezone = 'Pacific/Auckland';
 424         $this->assertSame('Pacific/Auckland', core_date::get_user_timezone('99'));
 425         $this->assertSame('Etc/GMT-1', core_date::get_user_timezone('1'));
 426         $this->assertSame('Etc/GMT+1', core_date::get_user_timezone(-1));
 427         $this->assertSame('Europe/London', core_date::get_user_timezone('Europe/London'));
 428         $USER->timezone = '99';
 429         $this->assertSame('Europe/Prague', core_date::get_user_timezone('99'));
 430         $this->assertSame('Europe/London', core_date::get_user_timezone('Europe/London'));
 431         $this->assertSame('Europe/Prague', core_date::get_user_timezone('xxx/zzz'));
 432         $USER->timezone = 'xxz/zzz';
 433         $this->assertSame('Europe/Prague', core_date::get_user_timezone('99'));
 434
 435         $this->setTimezone('99', 'Europe/Prague');
 436         $CFG->forcetimezone = '99';
 437
 438         $USER->timezone = 'Pacific/Auckland';
 439         $this->assertSame('Pacific/Auckland', core_date::get_user_timezone('99'));
 440         $this->assertSame('Europe/London', core_date::get_user_timezone('Europe/London'));
 441         $USER->timezone = '99';
 442         $this->assertSame('Europe/Prague', core_date::get_user_timezone('99'));
 443         $this->assertSame('Europe/London', core_date::get_user_timezone('Europe/London'));
 444         $this->assertSame('Europe/Prague', core_date::get_user_timezone('xxx/zzz'));
 445         $USER->timezone = 99;
 446         $this->assertSame('Europe/London', core_date::get_user_timezone('Europe/London'));
 447         $this->assertSame('Europe/Prague', core_date::get_user_timezone('xxx/zzz'));
 448         $USER->timezone = 'xxz/zzz';
 449         $this->assertSame('Europe/Prague', core_date::get_user_timezone('99'));
 450
 451         $this->setTimezone('xxx', 'Europe/Prague');
 452         $CFG->forcetimezone = '99';
 453         $USER->timezone = 'xxx';
 454         $this->assertSame('Europe/Prague', core_date::get_user_timezone('99'));
 455         $this->assertSame('Europe/Prague', core_date::get_user_timezone(99));
 456         $this->assertSame('Etc/GMT-1', core_date::get_user_timezone(1));
 457
 458         $this->setTimezone('Europe/Prague');
 459         $CFG->forcetimezone = 'Pacific/Auckland';
 460         $USER->timezone = 'Europe/London';
 461         $this->assertSame('Pacific/Auckland', core_date::get_user_timezone(99));
 462         $this->assertSame('Europe/Berlin', core_date::get_user_timezone('Europe/Berlin'));
 463
 464         // TZ object param.
 465
 466         $this->setTimezone('UTC');
 467         $USER->timezone = 'Europe/London';
 468         $CFG->forcetimezone = 99;
 469         $tz = new DateTimeZone('Pacific/Auckland');
 470         $this->assertSame('Pacific/Auckland', core_date::get_user_timezone($tz));
 471     }
 472
 473     public function test_get_user_timezone_object() {
 474         global $CFG, $USER;
 475         $this->resetAfterTest();
 476
 477         $this->setTimezone('Pacific/Auckland');
 478         $CFG->forcetimezone = '99';
 479
 480         $zones = core_date::get_list_of_timezones();
 481         foreach ($zones as $zone) {
 482             $USER->timezone = $zone;
 483             $tz = core_date::get_user_timezone_object();
 484             $this->assertInstanceOf('DateTimeZone', $tz);
 485             $this->assertSame($zone, $tz->getName());
 486         }
 487     }
 488 }