use strict; use warnings; use Test::More; use Test::Exception; use Class::MOP; { package Foo; use metaclass; Foo->meta->add_attribute('bar' => (reader => 'bar')); sub new { (shift)->meta->new_object(@_) } package Bar; use metaclass; use base 'Foo'; Bar->meta->add_attribute('baz' => (reader => 'baz', default => 'BAZ')); } # normal ... { my $foo = Foo->new(bar => 'BAR'); isa_ok($foo, 'Foo'); is($foo->bar, 'BAR', '... got the expect value'); ok(!$foo->can('baz'), '... no baz method though'); lives_ok { Bar->meta->rebless_instance($foo) } '... this works'; is($foo->bar, 'BAR', '... got the expect value'); ok($foo->can('baz'), '... we have baz method now'); is($foo->baz, 'BAZ', '... got the expect value'); lives_ok { Foo->meta->rebless_instance_back($foo) } '... this works'; is($foo->bar, 'BAR', '... got the expect value'); ok(!$foo->can('baz'), '... no baz method though'); } # with extra params ... { my $foo = Foo->new(bar => 'BAR'); isa_ok($foo, 'Foo'); is($foo->bar, 'BAR', '... got the expect value'); ok(!$foo->can('baz'), '... no baz method though'); lives_ok { Bar->meta->rebless_instance($foo, (baz => 'FOO-BAZ')) } '... this works'; is($foo->bar, 'BAR', '... got the expect value'); ok($foo->can('baz'), '... we have baz method now'); is($foo->baz, 'FOO-BAZ', '... got the expect value'); lives_ok { Foo->meta->rebless_instance_back($foo) } '... this works'; is($foo->bar, 'BAR', '... got the expect value'); ok(!$foo->can('baz'), '... no baz method though'); ok(!exists($foo->{baz}), '... and the baz attribute was deinitialized'); } # with extra params ... { my $foo = Foo->new(bar => 'BAR'); isa_ok($foo, 'Foo'); is($foo->bar, 'BAR', '... got the expect value'); ok(!$foo->can('baz'), '... no baz method though'); lives_ok { Bar->meta->rebless_instance($foo, (bar => 'FOO-BAR', baz => 'FOO-BAZ')) } '... this works'; is($foo->bar, 'FOO-BAR', '... got the expect value'); ok($foo->can('baz'), '... we have baz method now'); is($foo->baz, 'FOO-BAZ', '... got the expect value'); lives_ok { Foo->meta->rebless_instance_back($foo) } '... this works'; is($foo->bar, 'FOO-BAR', '... got the expect value'); ok(!$foo->can('baz'), '... no baz method though'); ok(!exists($foo->{baz}), '... and the baz attribute was deinitialized'); } done_testing;