Test other branch of map

Author: MilesCranmer

src/base.jl

@@ -300,7 +300,12 @@ end
 for func in (:reduce, :foldl, :foldr, :mapfoldl, :mapfoldr)
     @eval begin
         function $func(f, tree::Node; kws...)
-            throw(error(string($func) * " not implemented for Node. Use `tree_mapreduce` instead."))
+            throw(
+                error(
+                    string($func) *
+                    " not implemented for Node. Use `tree_mapreduce` instead.",
+                ),
+            )
         end
     end
 end

test/test_base.jl

@@ -113,6 +113,8 @@ end
     @test length(unique(map(objectid, copy_node(tree; preserve_sharing=true)))) == 24 - 3
     map(t -> (t.degree == 0 && t.constant) ? (t.val *= 2) : nothing, ctree)
     @test sum(t -> t.val, filter(t -> t.degree == 0 && t.constant, ctree)) == 11.6 * 2
+    @test typeof(map(t -> t.degree, ctree, Int)) == Vector{Int}
+    @test first(map(t -> t.degree, ctree, Int)) == 2
 end
 
 @testset "in" begin