ref: f20fbd7181f6b5b5489f0e2a0a3e214cdd9cc145 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]