Should be sorted: [1, 2, 3, 4, 5, 6, 7, 8]
Should be sorted backwards: [8, 7, 6, 5, 4, 3, 2, 1]
Should be sorted: [C, R, d, e, e, e, g, h, l, l, o, o, s]
Should be sorted backwards: [s, o, o, l, l, h, g, e, e, e, d, R, C]
Should be sorted, ignoring case: [C, d, e, e, e, g, h, l, l, o, o, R, s]