make check_metaclass_compatibility private

[gitmo/Class-MOP.git] / t / 071_immutable_w_custom_metaclass.t

use strict;
use warnings;

use FindBin;
use File::Spec::Functions;

use Test::More tests => 14;
use Test::Exception;
use Scalar::Util;

use Class::MOP;

use lib catdir($FindBin::Bin, 'lib');

{
    package Foo;

    use strict;
    use warnings;
    use metaclass;

    __PACKAGE__->meta->make_immutable;

    package Bar;

    use strict;
    use warnings;
    use metaclass;

    __PACKAGE__->meta->make_immutable;

    package Baz;

    use strict;
    use warnings;
    use metaclass 'MyMetaClass';

    sub mymetaclass_attributes{
      shift->meta->mymetaclass_attributes;
    }

    ::lives_ok {
        Baz->meta->superclasses('Bar');
    } '... we survive the metaclass incompatibility test';
}

{
    my $meta = Baz->meta;
    ok($meta->is_mutable, '... Baz is mutable');
    isnt(Scalar::Util::blessed(Foo->meta), Scalar::Util::blessed(Bar->meta),
         'Foo and Bar immutable metaclasses do not match');
    is(Scalar::Util::blessed($meta), 'MyMetaClass', 'Baz->meta blessed as MyMetaClass');
    ok(Baz->can('mymetaclass_attributes'), '... Baz can do method before immutable');
    ok($meta->can('mymetaclass_attributes'), '... meta can do method before immutable');
    lives_ok { $meta->make_immutable } "Baz is now immutable";
    ok($meta->is_immutable, '... Baz is immutable');
    isa_ok($meta, 'MyMetaClass', 'Baz->meta');
    ok(Baz->can('mymetaclass_attributes'), '... Baz can do method after imutable');
    ok($meta->can('mymetaclass_attributes'), '... meta can do method after immutable');
    isnt(Scalar::Util::blessed(Baz->meta), Scalar::Util::blessed(Bar->meta), 'Baz and Bar immutable metaclasses are different');
    lives_ok { $meta->make_mutable } "Baz is now mutable";
    ok($meta->is_mutable, '... Baz is mutable again');
}