12 has name => (is => 'rw');
13 has age => (is => 'rw');
16 my($self, $template) = @_;
17 return sprintf $template, $self->name;
26 default => sub { Person->new(age => 37, name => "Chuck") },
27 predicate => 'has_person',
29 person_name => 'name',
31 person_hello => [make_string => 'Hello, %s'],
38 default => sub { Person->new(age => 21, name => "Shawn") },
40 handles => [qw/name age/],
43 before me => sub { $before++ };
46 can_ok(Class => qw(person has_person person_name person_age name age quid));
48 my $object = Class->new;
49 ok(!$object->has_person, "don't have a person yet");
50 $object->person_name("Todd");
51 ok($object->has_person, "calling person_name instantiated person");
52 ok($object->person, "we really do have a person");
54 is($object->person_name, "Todd", "handles method");
55 is($object->person->name, "Todd", "traditional lookup");
56 is($object->person_age, 37, "handles method");
57 is($object->person->age, 37, "traditional lookup");
58 is($object->person_hello, 'Hello, Todd', 'curring');
60 my $object2 = Class->new(person => Person->new(name => "Philbert"));
61 ok($object2->has_person, "we have a person from the constructor");
62 is($object2->person_name, "Philbert", "handles method");
63 is($object2->person->name, "Philbert", "traditional lookup");
64 is($object2->person_age, undef, "no age because we didn't use the default");
65 is($object2->person->age, undef, "no age because we didn't use the default");
66 is($object2->person_hello, 'Hello, Philbert', 'currying');
68 ok($object->quid, "we have a Shawn");
69 is($object->name, "Shawn", "name handle");
70 is($object->age, 21, "age handle");
71 is $before, 2, 'delegations with method modifiers';
72 is($object->me->name, "Shawn", "me->name");
73 is($object->me->age, 21, "me->age");
76 $object->meta->get_attribute('me')->handles,
78 "correct handles layout for 'me'",
82 $object->meta->get_attribute('person')->handles,
83 { person_name => 'name', person_age => 'age', person_hello => [make_string => 'Hello, %s']},
84 "correct handles layout for 'person'",
88 $object->person(undef);
89 $object->person_name();
90 } qr/Cannot delegate person_name to name because the value of person is not defined/;
94 $object->person_age();
95 } qr/Cannot delegate person_age to age because the value of person is not an object/;
98 $object->person(undef);
99 $object->person_name();
100 } qr/Cannot delegate person_name to name because the value of person is not defined/;
104 $object->person_age();
105 } qr/Cannot delegate person_age to age because the value of person is not an object/;