public void GetFiscalYearByDateTimeRange() { var testFys = new List <string> { "20162017", "20172018", "20182019" }; var firstDate = new DateTime(2017, 1, 28); var secondDate = new DateTime(2018, 12, 28); List <string> fys = FiscalYear.GetFiscalYearByDateTimeRange(firstDate, secondDate); CollectionAssert.AreEqual(testFys, fys); }