t/cmop/load.t

   1 use strict;
   2 use warnings;
   3
   4 use Test::More;
   5
   6 use Class::Load qw(is_class_loaded);
   7
   8 BEGIN {
   9     use_ok('Class::MOP');
  10     use_ok('Class::MOP::Mixin');
  11     use_ok('Class::MOP::Mixin::AttributeCore');
  12     use_ok('Class::MOP::Mixin::HasAttributes');
  13     use_ok('Class::MOP::Mixin::HasMethods');
  14     use_ok('Class::MOP::Package');
  15     use_ok('Class::MOP::Module');
  16     use_ok('Class::MOP::Class');
  17     use_ok('Class::MOP::Class::Immutable::Trait');
  18     use_ok('Class::MOP::Method');
  19     use_ok('Class::MOP::Method');
  20     use_ok('Class::MOP::Method::Wrapped');
  21     use_ok('Class::MOP::Method::Inlined');
  22     use_ok('Class::MOP::Method::Generated');
  23     use_ok('Class::MOP::Method::Accessor');
  24     use_ok('Class::MOP::Method::Constructor');
  25     use_ok('Class::MOP::Method::Meta');
  26     use_ok('Class::MOP::Instance');
  27     use_ok('Class::MOP::Object');
  28 }
  29
  30 # make sure we are tracking metaclasses correctly
  31
  32 my %METAS = (
  33     'Class::MOP::Attribute'         => Class::MOP::Attribute->meta,
  34     'Class::MOP::Method::Inlined' => Class::MOP::Method::Inlined->meta,
  35     'Class::MOP::Method::Generated' => Class::MOP::Method::Generated->meta,
  36     'Class::MOP::Method::Accessor'  => Class::MOP::Method::Accessor->meta,
  37     'Class::MOP::Method::Constructor' => Class::MOP::Method::Constructor->meta,
  38     'Class::MOP::Method::Meta' => Class::MOP::Method::Meta->meta,
  39     'Class::MOP::Mixin'   => Class::MOP::Mixin->meta,
  40     'Class::MOP::Mixin::AttributeCore'   => Class::MOP::Mixin::AttributeCore->meta,
  41     'Class::MOP::Mixin::HasAttributes'   => Class::MOP::Mixin::HasAttributes->meta,
  42     'Class::MOP::Mixin::HasMethods'      => Class::MOP::Mixin::HasMethods->meta,
  43     'Class::MOP::Package'         => Class::MOP::Package->meta,
  44     'Class::MOP::Module'          => Class::MOP::Module->meta,
  45     'Class::MOP::Class'           => Class::MOP::Class->meta,
  46     'Class::MOP::Method'          => Class::MOP::Method->meta,
  47     'Class::MOP::Method::Wrapped' => Class::MOP::Method::Wrapped->meta,
  48     'Class::MOP::Instance'        => Class::MOP::Instance->meta,
  49     'Class::MOP::Object'          => Class::MOP::Object->meta,
  50     'Class::MOP::Class::Immutable::Trait' => Class::MOP::class_of('Class::MOP::Class::Immutable::Trait'),
  51     'Class::MOP::Class::Immutable::Class::MOP::Class' => Class::MOP::Class::Immutable::Class::MOP::Class->meta,
  52     'UNIVERSAL' => Class::MOP::class_of('UNIVERSAL'),
  53 );
  54
  55 ok( is_class_loaded($_), '... ' . $_ . ' is loaded' )
  56     for keys %METAS;
  57
  58 # The trait shouldn't be made immutable, it doesn't actually do anything, and
  59 # it doesn't even matter because it's not a class that will be
  60 # instantiated. Making UNIVERSAL immutable just seems like a bad idea.
  61 my %expect_mutable = map { $_ => 1 } qw( Class::MOP::Class::Immutable::Trait UNIVERSAL );
  62
  63 for my $meta (values %METAS) {
  64     if ( $expect_mutable{$meta->name} ) {
  65         ok( $meta->is_mutable(), '... ' . $meta->name . ' is mutable' );
  66     }
  67     else {
  68         ok( $meta->is_immutable(), '... ' . $meta->name . ' is immutable' );
  69     }
  70 }
  71
  72 is_deeply(
  73     {Class::MOP::get_all_metaclasses},
  74     \%METAS,
  75     '... got all the metaclasses'
  76 );
  77
  78 is_deeply(
  79     [
  80         sort { $a->name cmp $b->name } Class::MOP::get_all_metaclass_instances
  81     ],
  82     [
  83         Class::MOP::Attribute->meta,
  84         Class::MOP::Class->meta,
  85         Class::MOP::Class::Immutable::Class::MOP::Class->meta,
  86         Class::MOP::class_of('Class::MOP::Class::Immutable::Trait'),
  87         Class::MOP::Instance->meta,
  88         Class::MOP::Method->meta,
  89         Class::MOP::Method::Accessor->meta,
  90         Class::MOP::Method::Constructor->meta,
  91         Class::MOP::Method::Generated->meta,
  92         Class::MOP::Method::Inlined->meta,
  93         Class::MOP::Method::Meta->meta,
  94         Class::MOP::Method::Wrapped->meta,
  95         Class::MOP::Mixin->meta,
  96         Class::MOP::Mixin::AttributeCore->meta,
  97         Class::MOP::Mixin::HasAttributes->meta,
  98         Class::MOP::Mixin::HasMethods->meta,
  99         Class::MOP::Module->meta,
 100         Class::MOP::Object->meta,
 101         Class::MOP::Package->meta,
 102         Class::MOP::class_of('UNIVERSAL'),
 103     ],
 104     '... got all the metaclass instances'
 105 );
 106
 107 is_deeply(
 108     [ sort { $a cmp $b } Class::MOP::get_all_metaclass_names() ],
 109     [
 110         sort qw/
 111             Class::MOP::Attribute
 112             Class::MOP::Class
 113             Class::MOP::Class::Immutable::Class::MOP::Class
 114             Class::MOP::Class::Immutable::Trait
 115             Class::MOP::Mixin
 116             Class::MOP::Mixin::AttributeCore
 117             Class::MOP::Mixin::HasAttributes
 118             Class::MOP::Mixin::HasMethods
 119             Class::MOP::Instance
 120             Class::MOP::Method
 121             Class::MOP::Method::Accessor
 122             Class::MOP::Method::Constructor
 123             Class::MOP::Method::Generated
 124             Class::MOP::Method::Inlined
 125             Class::MOP::Method::Wrapped
 126             Class::MOP::Method::Meta
 127             Class::MOP::Module
 128             Class::MOP::Object
 129             Class::MOP::Package
 130             UNIVERSAL
 131             /,
 132     ],
 133     '... got all the metaclass names'
 134 );
 135
 136 # testing the meta-circularity of the system
 137
 138 is(
 139     Class::MOP::Class->meta->meta, Class::MOP::Class->meta->meta->meta,
 140     '... Class::MOP::Class->meta->meta == Class::MOP::Class->meta->meta->meta'
 141 );
 142
 143 is(
 144     Class::MOP::Class->meta->meta->meta, Class::MOP::Class->meta->meta->meta->meta,
 145     '... Class::MOP::Class->meta->meta->meta == Class::MOP::Class->meta->meta->meta->meta'
 146 );
 147
 148 is(
 149     Class::MOP::Class->meta->meta, Class::MOP::Class->meta->meta->meta->meta,
 150     '... Class::MOP::Class->meta->meta == Class::MOP::Class->meta->meta->meta->meta'
 151 );
 152
 153 is(
 154     Class::MOP::Class->meta->meta, Class::MOP::Class->meta->meta->meta->meta->meta,
 155     '... Class::MOP::Class->meta->meta == Class::MOP::Class->meta->meta->meta->meta->meta'
 156 );
 157
 158 isa_ok(Class::MOP::Class->meta, 'Class::MOP::Class');
 159
 160 done_testing;