test for negative-length copyto! call (#30)

Discovered by #29
JuliaArrays · Apr 23, 2024 · 52e3342 · 52e3342
1 parent 9a28eb6
commit 52e3342
Showing 1 changed file with 1 addition and 0 deletions.
diff --git 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