reducedim/don't map over initial values not provided @test (mapreduce((x->(#= /cache/build/tester-amdci5-9/julialang/julia-master/julia-0c0dfc4f00/share/julia/test/reducedim.jl:568 =# x + 1)), *, [1], dims = 1))[1] === mapreduce((x->begin #= /cache/build/tester-amdci5-9/julialang/julia-master/julia-0c0dfc4f00/share/julia/test/reducedim.jl:568 =# x + 1 end), *, [1]) === 2