--- /dev/null
+#!/usr/bin/env perl
+use strict;
+use warnings;
+use Test::More;
+
+BEGIN {
+ eval "use Test::Output;";
+ plan skip_all => "Test::Output is required for this test" if $@;
+ plan tests => 2;
+}
+
+stderr_is(
+ sub { package main; eval 'use Mouse' },
+ "Mouse does not export its sugar to the 'main' package.\n",
+ 'Mouse warns when loaded from the main package',
+);
+
+stderr_is(
+ sub { package main; eval 'use Mouse::Role' },
+ "Mouse::Role does not export its sugar to the 'main' package.\n",
+ 'Mouse::Role warns when loaded from the main package',
+);
+