/**
* Do not use directly - use $this->setTimezone('xx', $tz) instead in your test case.
* @param string $tz valid timezone name
*/
public static function phpunit_override_default_php_timezone($tz)
{
if (!defined('PHPUNIT_TEST')) {
throw new coding_exception('core_date::phpunit_override_default_php_timezone() must be used only from unit tests');
}
$result = timezone_open($tz);
// This triggers error if $tz invalid.
if ($result !== false) {
self::$defaultphptimezone = $tz;
} else {
self::$defaultphptimezone = 'Australia/Perth';
}
}
