ref: 1d4e3f132caed9dcbe4ffa99345be1f2fd2b8a73 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]