ref: c7a159441ad12b25e7d3b6ad6d5c93c01cdea4a0 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]