public void Can_get_user_timeZone_with_customTimeZones_enabled()
{
_dateTimeSettings.AllowUsersToSetTimeZone = true;
_dateTimeSettings.DefaultTimeZoneId = _gmtPlus2MinskTimeZoneId;
var user = new User {
Id = 10
};
_genericAttributeService.Setup(x => x.GetAttributeAsync <string>(user, UserDefaults.TimeZoneIdAttribute, 0))
.ReturnsAsync(_gmtPlus3MoscowTimeZoneId);
var timeZone = _dateTimeHelper.GetUserTimeZone(user).Result;
timeZone.ShouldNotBeNull();
timeZone.Id.ShouldEqual(_gmtPlus3MoscowTimeZoneId);
}