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::Method::Overload');
  27     use_ok('Class::MOP::Instance');
  28     use_ok('Class::MOP::Object');
  29 }
  30
  31 # make sure we are tracking metaclasses correctly
  32
  33 my %METAS = (
  34     'Class::MOP::Attribute'         => Class::MOP::Attribute->meta,
  35     'Class::MOP::Method::Inlined' => Class::MOP::Method::Inlined->meta,
  36     'Class::MOP::Method::Generated' => Class::MOP::Method::Generated->meta,
  37     'Class::MOP::Method::Accessor'  => Class::MOP::Method::Accessor->meta,
  38     'Class::MOP::Method::Constructor' => Class::MOP::Method::Constructor->meta,
  39     'Class::MOP::Method::Meta' => Class::MOP::Method::Meta->meta,
  40     'Class::MOP::Method::Overload' => Class::MOP::Method::Overload->meta,
  41     'Class::MOP::Mixin'   => Class::MOP::Mixin->meta,
  42     'Class::MOP::Mixin::AttributeCore'   => Class::MOP::Mixin::AttributeCore->meta,
  43     'Class::MOP::Mixin::HasAttributes'   => Class::MOP::Mixin::HasAttributes->meta,
  44     'Class::MOP::Mixin::HasMethods'      => Class::MOP::Mixin::HasMethods->meta,
  45     'Class::MOP::Package'         => Class::MOP::Package->meta,
  46     'Class::MOP::Module'          => Class::MOP::Module->meta,
  47     'Class::MOP::Class'           => Class::MOP::Class->meta,
  48     'Class::MOP::Method'          => Class::MOP::Method->meta,
  49     'Class::MOP::Method::Wrapped' => Class::MOP::Method::Wrapped->meta,
  50     'Class::MOP::Instance'        => Class::MOP::Instance->meta,
  51     'Class::MOP::Object'          => Class::MOP::Object->meta,
  52     'Class::MOP::Class::Immutable::Trait' => Class::MOP::class_of('Class::MOP::Class::Immutable::Trait'),
  53     'Class::MOP::Class::Immutable::Class::MOP::Class' => Class::MOP::Class::Immutable::Class::MOP::Class->meta,
  54     'UNIVERSAL' => Class::MOP::class_of('UNIVERSAL'),
  55 );
  56
  57 ok( is_class_loaded($_), '... ' . $_ . ' is loaded' )
  58     for keys %METAS;
  59
  60 # The trait shouldn't be made immutable, it doesn't actually do anything, and
  61 # it doesn't even matter because it's not a class that will be
  62 # instantiated. Making UNIVERSAL immutable just seems like a bad idea.
  63 my %expect_mutable = map { $_ => 1 } qw( Class::MOP::Class::Immutable::Trait UNIVERSAL );
  64
  65 for my $meta (values %METAS) {
  66     if ( $expect_mutable{$meta->name} ) {
  67         ok( $meta->is_mutable(), '... ' . $meta->name . ' is mutable' );
  68     }
  69     else {
  70         ok( $meta->is_immutable(), '... ' . $meta->name . ' is immutable' );
  71     }
  72 }
  73
  74 is_deeply(
  75     {Class::MOP::get_all_metaclasses},
  76     \%METAS,
  77     '... got all the metaclasses'
  78 );
  79
  80 is_deeply(
  81     [
  82         sort { $a->name cmp $b->name } Class::MOP::get_all_metaclass_instances
  83     ],
  84     [
  85         Class::MOP::Attribute->meta,
  86         Class::MOP::Class->meta,
  87         Class::MOP::Class::Immutable::Class::MOP::Class->meta,
  88         Class::MOP::class_of('Class::MOP::Class::Immutable::Trait'),
  89         Class::MOP::Instance->meta,
  90         Class::MOP::Method->meta,
  91         Class::MOP::Method::Accessor->meta,
  92         Class::MOP::Method::Constructor->meta,
  93         Class::MOP::Method::Generated->meta,
  94         Class::MOP::Method::Inlined->meta,
  95         Class::MOP::Method::Meta->meta,
  96         Class::MOP::Method::Overload->meta,
  97         Class::MOP::Method::Wrapped->meta,
  98         Class::MOP::Mixin->meta,
  99         Class::MOP::Mixin::AttributeCore->meta,
 100         Class::MOP::Mixin::HasAttributes->meta,
 101         Class::MOP::Mixin::HasMethods->meta,
 102         Class::MOP::Module->meta,
 103         Class::MOP::Object->meta,
 104         Class::MOP::Package->meta,
 105         Class::MOP::class_of('UNIVERSAL'),
 106     ],
 107     '... got all the metaclass instances'
 108 );
 109
 110 is_deeply(
 111     [ sort { $a cmp $b } Class::MOP::get_all_metaclass_names() ],
 112     [
 113         sort qw/
 114             Class::MOP::Attribute
 115             Class::MOP::Class
 116             Class::MOP::Class::Immutable::Class::MOP::Class
 117             Class::MOP::Class::Immutable::Trait
 118             Class::MOP::Mixin
 119             Class::MOP::Mixin::AttributeCore
 120             Class::MOP::Mixin::HasAttributes
 121             Class::MOP::Mixin::HasMethods
 122             Class::MOP::Instance
 123             Class::MOP::Method
 124             Class::MOP::Method::Accessor
 125             Class::MOP::Method::Constructor
 126             Class::MOP::Method::Generated
 127             Class::MOP::Method::Inlined
 128             Class::MOP::Method::Wrapped
 129             Class::MOP::Method::Meta
 130             Class::MOP::Method::Overload
 131             Class::MOP::Module
 132             Class::MOP::Object
 133             Class::MOP::Package
 134             UNIVERSAL
 135             /,
 136     ],
 137     '... got all the metaclass names'
 138 );
 139
 140 # testing the meta-circularity of the system
 141
 142 is(
 143     Class::MOP::Class->meta->meta, Class::MOP::Class->meta->meta->meta,
 144     '... Class::MOP::Class->meta->meta == Class::MOP::Class->meta->meta->meta'
 145 );
 146
 147 is(
 148     Class::MOP::Class->meta->meta->meta, Class::MOP::Class->meta->meta->meta->meta,
 149     '... Class::MOP::Class->meta->meta->meta == Class::MOP::Class->meta->meta->meta->meta'
 150 );
 151
 152 is(
 153     Class::MOP::Class->meta->meta, Class::MOP::Class->meta->meta->meta->meta,
 154     '... Class::MOP::Class->meta->meta == Class::MOP::Class->meta->meta->meta->meta'
 155 );
 156
 157 is(
 158     Class::MOP::Class->meta->meta, Class::MOP::Class->meta->meta->meta->meta->meta,
 159     '... Class::MOP::Class->meta->meta == Class::MOP::Class->meta->meta->meta->meta->meta'
 160 );
 161
 162 isa_ok(Class::MOP::Class->meta, 'Class::MOP::Class');
 163
 164 done_testing;