From a976a0ab8ec1cc38627835d13d8372d5300c758e Mon Sep 17 00:00:00 2001
From: N5N3 <2642243996@qq.com>
Date: Tue, 11 Jan 2022 16:28:15 +0800
Subject: [PATCH] Add test

---
 test/reducedim.jl | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/test/reducedim.jl b/test/reducedim.jl
index e3179084990a4f..080926018e6730 100644
--- a/test/reducedim.jl
+++ b/test/reducedim.jl
@@ -544,3 +544,11 @@ end
 @testset "type stability (issue #43461)" begin
     @test (@inferred maximum(Float64, reshape(1:4,2,:); dims = 2)) == reshape([3,4],2,1)
 end
+
+@testset "Min/Max initialization test" begin
+    A = Vector{Union{Missing,Int}}(1:4)
+    A[2] = missing
+    @test @inferred(minimum(exp, A; dims = 1))[1] === missing
+    @test @inferred(maximum(exp, A; dims = 1))[1] === missing
+    @test @inferred(extrema(exp, A; dims = 1))[1] === (missing, missing)
+end
\ No newline at end of file