Add test

Author: jishnub

test/symmetric.jl

@@ -1343,4 +1343,11 @@ end
     @test_throws msg LinearAlgebra.fillband!(Symmetric(A), 2, 0, 1)
 end
 
+@testset "uplo" begin
+    S = Symmetric([1 2; 3 4], :U)
+    @test LinearAlgebra.uplo(S) == :U
+    H = Hermitian([1 2; 3 4], :L)
+    @test LinearAlgebra.uplo(H) == :L
+end
+
 end # module TestSymmetric