--- /dev/null
+#!/usr/bin/env perl
+use strict;
+use warnings;
+use Test::More tests => 7;
+use lib 't/lib';
+
+do {
+ package MouseX::AttributeHelpers::Number;
+ use Mouse;
+ extends 'Mouse::Meta::Attribute';
+
+ has provides => (
+ is => 'rw',
+ isa => 'HashRef',
+ );
+
+ after 'install_accessors' => sub{
+ my ($attr) = @_;
+
+ my %provides = %{$attr->{provides}};
+ my $method_constructors = {
+ add => sub {
+ my ($attr, $name) = @_;
+ return sub {
+ $_[0]->$name( $_[0]->$name() + $_[1])
+ };
+ },
+ };
+ while (my ($name, $aliased) = each %provides) {
+ $attr->associated_class->add_method(
+ $aliased => $method_constructors->{$name}->($attr, $attr->name)
+ );
+ }
+ return $attr;
+ };
+
+ package
+ Mouse::Meta::Attribute::Custom::MyNumber;
+ sub register_implementation { 'MouseX::AttributeHelpers::Number' }
+
+ 1;
+
+ package Foo;
+ use Mouse::Role;
+
+ has 'i' => (
+ metaclass => 'MyNumber',
+ is => 'rw',
+ isa => 'Int',
+ provides => {
+ 'add' => 'add_number'
+ },
+ );
+ sub f_m {}
+
+ package Bar;
+ use Mouse::Role;
+
+ has 'j' => (
+ metaclass => 'MyNumber',
+ is => 'rw',
+ isa => 'Int',
+ provides => {
+ 'add' => 'add_number_j'
+ },
+ );
+ sub b_m {}
+
+ package Klass1;
+ use Mouse;
+ with 'Foo';
+
+ package Klass2;
+ use Mouse;
+ with 'Foo', 'Bar';
+
+};
+
+{
+ # normal
+ can_ok 'Klass1', 'add_number';
+ my $k = Klass1->new(i=>3);
+ $k->add_number(4);
+ is $k->i, 7;
+}
+
+{
+ # combine
+ can_ok 'Klass2', 'f_m';
+ can_ok 'Klass2', 'b_m';
+ can_ok 'Klass2', 'add_number';
+ can_ok 'Klass2', 'add_number_j';
+ my $k = Klass2->new(i=>3);
+ $k->add_number(4);
+ is $k->i, 7;
+}
+
+