ref: d3c2b26e200148d7e5861f80e6c66ff7e9eca2b8 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]