#!/usr/bin/perl
use strict;
use warnings;
use Test::More;
use Test::Fatal;
use Moose::Util::TypeConstraints;
{
package Some::Class;
use Moose::Util::TypeConstraints;
subtype 'MySubType' => as 'Int' => where { 1 };
}
like( exception {
package Some::Other::Class;
use Moose::Util::TypeConstraints;
subtype 'MySubType' => as 'Int' => where { 1 };
}, qr/cannot be created again/, 'Trying to create same type twice throws' );
done_testing;