--- /dev/null
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+use Test::More tests => 4;
+use Test::Exception;
+
+{
+ package Foo;
+
+ use Mouse::Util::TypeConstraints;
+
+ eval {
+ type MyRef => where { ref($_) };
+ };
+ ::ok( !$@, '... successfully exported &type to Foo package' );
+
+ eval {
+ subtype MyArrayRef => as MyRef => where { ref($_) eq 'ARRAY' };
+ };
+ ::ok( !$@, '... successfully exported &subtype to Foo package' );
+
+ Mouse::Util::TypeConstraints->export_type_constraints_as_functions();
+
+ ::ok( MyRef( {} ), '... Ref worked correctly' );
+ ::ok( MyArrayRef( [] ), '... ArrayRef worked correctly' );
+}