public void ParseMonthTest() { ParseQuarterTest(1, 1); ParseQuarterTest(2019, 1); ParseQuarterTest(0001, 1); ParseQuarterTest(2000, 2); ParseQuarterTest(2020, 4); ParseQuarterTest(9999, 4); Assert.IsFalse(Quarter.TryParse("0000-Q1", out Quarter quarter)); Assert.AreEqual(default, quarter);