public void GetAbsoluteYear_InvalidEra()
 {
     TestHelper.AssertInvalid(Iso.GetAbsoluteYear, 1, Era.AnnoPersico);
 }
 public void GetMaxYearOfEra_InvalidEra()
 {
     TestHelper.AssertInvalid(Iso.GetMaxYearOfEra, Era.AnnoPersico);
 }