Test Transducer(::Reduction)

JuliaFolds · Jan 13, 2019 · 0fdd763 · 0fdd763
1 parent bbcc477
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diff --git a/test/preamble.jl b/test/preamble.jl
@@ -3,7 +3,7 @@ using Random
 using SparseArrays: issparse, sparse
 using Statistics: mean
 using Transducers
-using Transducers: simple_transduce, Reduced, isexpansive,
+using Transducers: Transducer, simple_transduce, Reduced, isexpansive,
     TeeZip, GetIndex, SetIndex, Inject
 
 inc(x) = x + oneunit(x)

diff --git a/test/test_processes.jl b/test/test_processes.jl
@@ -155,6 +155,18 @@ end
     end
 end
 
+@testset "Transducer(::Reduction)" begin
+    # testing Transducer(::Eduction) which calls Transducer(::Reduction)
+    @testset for xf in [
+            Map(sin),
+            TeeZip(Filter(isfinite) |> Map(tan)),
+            Map(sin) |> TeeZip(Filter(isfinite) |> Map(tan)) |>
+                Map(cos),
+            ]
+        @test Transducer(eduction(xf, 1:1)) === xf
+    end
+end
+
 @testset "isexpansive" begin
     expansives = [
         Cat()