public void Result_is_descending_test() { List <int> arrayNum = new List <int> { 1, 8, 2, }; List <int> arrayNumExpected = new List <int> { 8, 2, 1 }; List <int> sortAsc = arraySorter.sortDescending(arrayNum); CollectionAssert.AreEqual(sortAsc, arrayNumExpected); Assert.That(sortAsc, Is.Ordered.Descending); }