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data/t/attributes/attribute_delegation.t  view on Meta::CPAN

use strict;
use warnings;

use Test::More;
use Test::Fatal;


# -------------------------------------------------------------------
# HASH handles
# -------------------------------------------------------------------
# the canonical form of of the 'handles'
# option is the hash ref mapping a
# method name to the delegated method name

{
    package Foo;
    use Moose;

    has 'bar' => (is => 'rw', default => 10);

    sub baz { 42 }

    package Bar;
    use Moose;

    has 'foo' => (
        is      => 'rw',
        default => sub { Foo->new },
        handles => {
            'foo_bar' => 'bar',
            foo_baz => 'baz',
            'foo_bar_to_20' => [ bar => 20 ],
        },
    );
}

my $bar = Bar->new;
isa_ok($bar, 'Bar');

ok($bar->foo, '... we have something in bar->foo');
isa_ok($bar->foo, 'Foo');

my $meth = Bar->meta->get_method('foo_bar');
isa_ok($meth, 'Moose::Meta::Method::Delegation');
is($meth->associated_attribute->name, 'foo',
   'associated_attribute->name for this method is foo');

is($bar->foo->bar, 10, '... bar->foo->bar returned the right default');

can_ok($bar, 'foo_bar');
is($bar->foo_bar, 10, '... bar->foo_bar delegated correctly');

# change the value ...

$bar->foo->bar(30);

# and make sure the delegation picks it up

is($bar->foo->bar, 30, '... bar->foo->bar returned the right (changed) value');
is($bar->foo_bar, 30, '... bar->foo_bar delegated correctly');

# change the value through the delegation ...

$bar->foo_bar(50);