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[gitmo/Class-MOP.git] / t / 014_attribute_introspection.t

#!/usr/bin/perl

use strict;
use warnings;

use Test::More tests => 60;
use Test::Exception;

BEGIN {
    use_ok('Class::MOP');
}

{
    my $attr = Class::MOP::Attribute->new('$test');
    is($attr->meta, Class::MOP::Attribute->meta, '... instance and class both lead to the same meta');
}

{
    my $meta = Class::MOP::Attribute->meta();
    isa_ok($meta, 'Class::MOP::Class');

    my @methods = qw(
        meta
        new clone

        initialize_instance_slot

        name
        has_accessor  accessor
        has_writer    writer     get_write_method get_write_method_ref
        has_reader    reader     get_read_method  get_read_method_ref
        has_predicate predicate
        has_clearer   clearer
        has_builder   builder
        has_init_arg  init_arg
        has_default   default    is_default_a_coderef
        has_initializer initializer

        slots
        get_value
        set_value
        set_initial_value
        has_value
        clear_value

        associated_class
        attach_to_class detach_from_class

        accessor_metaclass

        associated_methods
        associate_method

        process_accessors
        install_accessors
        remove_accessors
        );

    is_deeply(
        [ sort $meta->get_method_list ],
        [ sort @methods ],
        '... our method list matches');

    foreach my $method_name (@methods) {
        ok($meta->has_method($method_name), '... Class::MOP::Attribute->has_method(' . $method_name . ')');
    }

    my @attributes = (
        '$!name',
        '$!accessor',
        '$!reader',
        '$!writer',
        '$!predicate',
        '$!clearer',
        '$!builder',
        '$!init_arg',
        '$!initializer',
        '$!default',
        '$!associated_class',
        '@!associated_methods',
    );

    is_deeply(
        [ sort $meta->get_attribute_list ],
        [ sort @attributes ],
        '... our attribute list matches');

    foreach my $attribute_name (@attributes) {
        ok($meta->has_attribute($attribute_name), '... Class::MOP::Attribute->has_attribute(' . $attribute_name . ')');
    }

    # We could add some tests here to make sure that
    # the attribute have the appropriate
    # accessor/reader/writer/predicate combinations,
    # but that is getting a little excessive so I
    # wont worry about it for now. Maybe if I get
    # bored I will do it.
}