public void GetMinYearOfEra()
        {
            LocalDate date = new LocalDate(1, 1, 1);

            Assert.AreEqual(date.YearOfEra, Iso.GetMinYearOfEra(Era.Common));
            Assert.AreEqual(Era.Common, date.Era);
            date = new LocalDate(0, 1, 1);
            Assert.AreEqual(date.YearOfEra, Iso.GetMinYearOfEra(Era.BeforeCommon));
            Assert.AreEqual(Era.BeforeCommon, date.Era);
        }