public void ReturnCorrectTaxYear() { string expected1 = "2019-20 Tax Year"; DateTime invDate1 = new DateTime(2019, 5, 28); string actual1 = AnalyserTools.IdentifyTaxYear(invDate1); string expected2 = "2019-20 Tax Year"; DateTime invDate2 = new DateTime(2019, 4, 6); string actual2 = AnalyserTools.IdentifyTaxYear(invDate2); string expected3 = "2018-19 Tax Year"; DateTime invDate3 = new DateTime(2019, 4, 4); string actual3 = AnalyserTools.IdentifyTaxYear(invDate3); Assert.Equal(expected1, actual1); Assert.Equal(expected2, actual2); Assert.Equal(expected3, actual3); }