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|
#!./perl
use strict;
use warnings;
use utf8;
use open qw( :utf8 :std );
require q(./test.pl); plan(tests => 4);
=pod
This tests the classic diamond inheritance pattern.
<A>
/ \
<B> <C>
\ /
<D>
=cut
{
package Ｄiᚪၚd_A;
sub hèllò { 'Ｄiᚪၚd_A::hèllò' }
}
{
package Ｄiᚪၚd_B;
use base 'Ｄiᚪၚd_A';
}
{
package Ｄiᚪၚd_C;
use base 'Ｄiᚪၚd_A';
sub hèllò { 'Ｄiᚪၚd_C::hèllò' }
}
{
package Ｄiᚪၚd_D;
use base ('Ｄiᚪၚd_B', 'Ｄiᚪၚd_C');
use mro 'c3';
}
ok(eq_array(
mro::get_linear_isa('Ｄiᚪၚd_D'),
[ qw(Ｄiᚪၚd_D Ｄiᚪၚd_B Ｄiᚪၚd_C Ｄiᚪၚd_A) ]
), '... got the right MRO for Ｄiᚪၚd_D');
is(Ｄiᚪၚd_D->hèllò, 'Ｄiᚪၚd_C::hèllò', '... method resolved itself as expected');
is(Ｄiᚪၚd_D->can('hèllò')->(), 'Ｄiᚪၚd_C::hèllò', '... can(method) resolved itself as expected');
is(UNIVERSAL::can("Ｄiᚪၚd_D", 'hèllò')->(), 'Ｄiᚪၚd_C::hèllò', '... can(method) resolved itself as expected');
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