File: basic_05_dfs_utf8.t

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#!./perl

use strict;
use warnings;

use utf8;
use open qw( :utf8 :std );

require q(./test.pl); plan(tests => 2);

=pod

This tests a strange bug found by Matt S. Trout 
while building DBIx::Class. Thanks Matt!!!! 

   <A>
  /   \
<C>   <B>
  \   /
   <D>

=cut

{
    package Diᚪၚd_A;
    use mro 'dfs'; 

    sub ᕘ { 'Diᚪၚd_A::ᕘ' }
}
{
    package Diᚪၚd_B;
    use base 'Diᚪၚd_A';
    use mro 'dfs';     

    sub ᕘ { 'Diᚪၚd_B::ᕘ => ' . (shift)->SUPER::ᕘ }
}
{
    package Diᚪၚd_C;
    use mro 'dfs';    
    use base 'Diᚪၚd_A';     

}
{
    package Diᚪၚd_D;
    use base ('Diᚪၚd_C', 'Diᚪၚd_B');
    use mro 'dfs';    
    
    sub ᕘ { 'Diᚪၚd_D::ᕘ => ' . (shift)->SUPER::ᕘ }    
}

ok(eq_array(
    mro::get_linear_isa('Diᚪၚd_D'),
    [ qw(Diᚪၚd_D Diᚪၚd_C Diᚪၚd_A Diᚪၚd_B) ]
), '... got the right MRO for Diᚪၚd_D');

is(Diᚪၚd_D->ᕘ, 
   'Diᚪၚd_D::ᕘ => Diᚪၚd_A::ᕘ', 
   '... got the right next::method dispatch path');