ref: 8a836cd7c2c7f07ca8bb12bff6dab08d1bc4ed62 dir: /tests/Enum.ref/
[1,2,3,4,5] [1] [] [1,3,5,7,9] [1,-1,-3,-5] [1,2,3,4,5] [1,3,5,7,9]