reducedim/test reductions over region: (2, 3, 4) @test #= /cache/build/tester-amdci4-15/julialang/julia-master/julia-333391feb8/share/julia/test/reducedim.jl:88 =# @inferred(count(!, Breduc, dims = region)) ≈ safe_count(.!(Breduc), region)