From d02cf2ac7a7bf04a847f806e0f6399a190c75b1f Mon Sep 17 00:00:00 2001
From: Neven Sajko <s@purelymail.com>
Date: Tue, 23 Apr 2024 14:47:13 +0200
Subject: [PATCH] test for negative-length `copyto!` call

Discovered by #29
---
 test/runtests.jl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/test/runtests.jl b/test/runtests.jl
index a0a5c3f..5ed7073 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -193,6 +193,7 @@ end
                 @test copyto!(d, s) == 1:5
                 @test copyto!(d, 1, s, 1, length(s)) isa D{Float64}
                 @test copyto!(d, 1, s, 1, length(s)) == 1:5
+                @test_throws ArgumentError copyto!(d, 1, s, 1, -1)
             end
         end
     end