add test for filtering empty iterator (JuliaLang#22528)

IntelLabs · Jun 26, 2017 · a7fd042 · a7fd042
1 parent 2fa4aa4
commit a7fd042
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/test/iterators.jl b/test/iterators.jl
@@ -406,3 +406,9 @@ end
 @testset "product iterator infinite loop" begin
     @test collect(product(1:1, (1, "2"))) == [(1, 1) (1, "2")]
 end
+
+@testset "filter empty iterable #16704" begin
+    arr = filter(n -> true, 1:0)
+    @test length(arr) == 0
+    @test eltype(arr) == Int
+end