ref: 1929d9a39b6ac8a8f7a275bca6a755e558e74ca4 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]