public void Result_replace_values_x_with_values_y_test() { List <int> x = new List <int> { 9, 8, 2, 9 }; List <int> expected = new List <int> { 7, 8, 2, 7 }; List <int> actual = arraySorter.replaceXWithY(x); CollectionAssert.AreEqual(expected, actual); }