Current File : //proc/self/root/usr/share/doc/perl-Moose-2.1005/t/roles/apply_role.t
#!/usr/bin/perl
use strict;
use warnings;
use Test::More;
use Test::Fatal;
{
package FooRole;
use Moose::Role;
our $VERSION = 23;
has 'bar' => ( is => 'rw', isa => 'FooClass' );
has 'baz' => ( is => 'ro' );
sub goo {'FooRole::goo'}
sub foo {'FooRole::foo'}
override 'boo' => sub { 'FooRole::boo -> ' . super() };
around 'blau' => sub {
my $c = shift;
'FooRole::blau -> ' . $c->();
};
}
{
package BarRole;
use Moose::Role;
sub woot {'BarRole::woot'}
}
{
package BarClass;
use Moose;
sub boo {'BarClass::boo'}
sub foo {'BarClass::foo'} # << the role overrides this ...
}
{
package FooClass;
use Moose;
extends 'BarClass';
::like( ::exception { with 'FooRole' => { -version => 42 } }, qr/FooRole version 42 required--this is only version 23/, 'applying role with unsatisfied version requirement' );
::is( ::exception { with 'FooRole' => { -version => 13 } }, undef, 'applying role with satisfied version requirement' );
sub blau {'FooClass::blau'} # << the role wraps this ...
sub goo {'FooClass::goo'} # << overrides the one from the role ...
}
{
package FooBarClass;
use Moose;
extends 'FooClass';
with 'FooRole', 'BarRole';
}
{
package PlainJane;
sub new { return bless {}, __PACKAGE__; }
}
my $foo_class_meta = FooClass->meta;
isa_ok( $foo_class_meta, 'Moose::Meta::Class' );
my $foobar_class_meta = FooBarClass->meta;
isa_ok( $foobar_class_meta, 'Moose::Meta::Class' );
isnt( exception {
$foo_class_meta->does_role();
}, undef, '... does_role requires a role name' );
isnt( exception {
$foo_class_meta->add_role();
}, undef, '... apply_role requires a role' );
isnt( exception {
$foo_class_meta->add_role( bless( {} => 'Fail' ) );
}, undef, '... apply_role requires a role' );
ok( $foo_class_meta->does_role('FooRole'),
'... the FooClass->meta does_role FooRole' );
ok( !$foo_class_meta->does_role('OtherRole'),
'... the FooClass->meta !does_role OtherRole' );
ok( $foobar_class_meta->does_role('FooRole'),
'... the FooBarClass->meta does_role FooRole' );
ok( $foobar_class_meta->does_role('BarRole'),
'... the FooBarClass->meta does_role BarRole' );
ok( !$foobar_class_meta->does_role('OtherRole'),
'... the FooBarClass->meta !does_role OtherRole' );
foreach my $method_name (qw(bar baz foo boo blau goo)) {
ok( $foo_class_meta->has_method($method_name),
'... FooClass has the method ' . $method_name );
ok( $foobar_class_meta->has_method($method_name),
'... FooBarClass has the method ' . $method_name );
}
ok( !$foo_class_meta->has_method('woot'),
'... FooClass lacks the method woot' );
ok( $foobar_class_meta->has_method('woot'),
'... FooBarClass has the method woot' );
foreach my $attr_name (qw(bar baz)) {
ok( $foo_class_meta->has_attribute($attr_name),
'... FooClass has the attribute ' . $attr_name );
ok( $foobar_class_meta->has_attribute($attr_name),
'... FooBarClass has the attribute ' . $attr_name );
}
can_ok( 'FooClass', 'does' );
ok( FooClass->does('FooRole'), '... the FooClass does FooRole' );
ok( !FooClass->does('BarRole'), '... the FooClass does not do BarRole' );
ok( !FooClass->does('OtherRole'), '... the FooClass does not do OtherRole' );
can_ok( 'FooBarClass', 'does' );
ok( FooBarClass->does('FooRole'), '... the FooClass does FooRole' );
ok( FooBarClass->does('BarRole'), '... the FooBarClass does FooBarRole' );
ok( !FooBarClass->does('OtherRole'),
'... the FooBarClass does not do OtherRole' );
my $foo = FooClass->new();
isa_ok( $foo, 'FooClass' );
my $foobar = FooBarClass->new();
isa_ok( $foobar, 'FooBarClass' );
is( $foo->goo, 'FooClass::goo', '... got the right value of goo' );
is( $foobar->goo, 'FooRole::goo', '... got the right value of goo' );
is( $foo->boo, 'FooRole::boo -> BarClass::boo',
'... got the right value from ->boo' );
is( $foobar->boo, 'FooRole::boo -> FooRole::boo -> BarClass::boo',
'... got the right value from ->boo (double wrapped)' );
is( $foo->blau, 'FooRole::blau -> FooClass::blau',
'... got the right value from ->blau' );
is( $foobar->blau, 'FooRole::blau -> FooRole::blau -> FooClass::blau',
'... got the right value from ->blau' );
foreach my $foo ( $foo, $foobar ) {
can_ok( $foo, 'does' );
ok( $foo->does('FooRole'), '... an instance of FooClass does FooRole' );
ok( !$foo->does('OtherRole'),
'... and instance of FooClass does not do OtherRole' );
can_ok( $foobar, 'does' );
ok( $foobar->does('FooRole'),
'... an instance of FooBarClass does FooRole' );
ok( $foobar->does('BarRole'),
'... an instance of FooBarClass does BarRole' );
ok( !$foobar->does('OtherRole'),
'... and instance of FooBarClass does not do OtherRole' );
for my $method (qw/bar baz foo boo goo blau/) {
can_ok( $foo, $method );
}
is( $foo->foo, 'FooRole::foo', '... got the right value of foo' );
ok( !defined( $foo->baz ), '... $foo->baz is undefined' );
ok( !defined( $foo->bar ), '... $foo->bar is undefined' );
isnt( exception {
$foo->baz(1);
}, undef, '... baz is a read-only accessor' );
isnt( exception {
$foo->bar(1);
}, undef, '... bar is a read-write accessor with a type constraint' );
my $foo2 = FooClass->new();
isa_ok( $foo2, 'FooClass' );
is( exception {
$foo->bar($foo2);
}, undef, '... bar is a read-write accessor with a type constraint' );
is( $foo->bar, $foo2, '... got the right value for bar now' );
}
{
{
package MRole;
use Moose::Role;
sub meth { }
}
{
package MRole2;
use Moose::Role;
sub meth2 { }
}
{
use Moose::Meta::Class;
use Moose::Object;
use Moose::Util qw(apply_all_roles);
my $class = Moose::Meta::Class->create( 'Class' => (
superclasses => [ 'Moose::Object' ],
));
apply_all_roles($class, MRole->meta, MRole2->meta);
ok(Class->can('meth'), "can meth");
ok(Class->can('meth2'), "can meth2");
}
}
{
ok(!Moose::Util::find_meta('PlainJane'), 'not initialized');
Moose::Util::apply_all_roles('PlainJane', 'BarRole');
ok(Moose::Util::find_meta('PlainJane'), 'initialized');
ok(Moose::Util::find_meta('PlainJane')->does_role('BarRole'), 'does BarRole');
my $pj = PlainJane->new();
ok($pj->can('woot'), 'can woot');
}
done_testing;
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