public void Listener_BirthdayThisYear()
{
Listener dummy = CreateValidListener();
DateTime birthdayThisYear = dummy.BirthdayThisYear();
Assert.AreEqual(DateTime.Now.Year, birthdayThisYear.Year);
Assert.AreEqual(dummy.Birthday.Value.Month, birthdayThisYear.Month);
Assert.AreEqual(dummy.Birthday.Value.Day, birthdayThisYear.Day);
}