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|
use strict;
use warnings;
use Test::More;
use Test::Exception;
use Class::MOP;
{
package My::Meta;
use strict;
use warnings;
use metaclass;
use base 'Class::MOP::Class';
sub initialize {
shift->SUPER::initialize(
@_,
immutable_trait => 'My::Meta::Class::Immutable::Trait',
);
}
}
{
package My::Meta::Class::Immutable::Trait;
use MRO::Compat;
use base 'Class::MOP::Class::Immutable::Trait';
sub another_method { 42 }
sub superclasses {
my $orig = shift;
my $self = shift;
$self->$orig(@_);
}
}
{
package Foo;
use strict;
use warnings;
use metaclass;
__PACKAGE__->meta->add_attribute('foo');
__PACKAGE__->meta->make_immutable;
}
{
package Bar;
use strict;
use warnings;
use metaclass 'My::Meta';
use base 'Foo';
__PACKAGE__->meta->add_attribute('bar');
::lives_ok { __PACKAGE__->meta->make_immutable }
'can safely make a class immutable when it has a custom metaclass and immutable trait';
}
{
can_ok( Bar->meta, 'another_method' );
is( Bar->meta->another_method, 42, 'another_method returns expected value' );
is_deeply(
[ Bar->meta->superclasses ], ['Foo'],
'Bar->meta->superclasses returns expected value after immutabilization'
);
}
done_testing;
|
