Examples/test-suite/perl5/director_nested_runme.pl

use strict;
use warnings;
use Test::More tests => 9;
BEGIN { use_ok 'director_nested' }
require_ok 'director_nested';

{
  package A;
  use base 'director_nested::FooBar_int';
  sub do_step { 'A::do_step;' }
  sub get_value { 'A::get_value' }
}

my $a = A->new();
isa_ok $a, 'A';

is $a->step(), "Bar::step;Foo::advance;Bar::do_advance;A::do_step;",
   'A virtual resolution';

{
  package B;
  use base 'director_nested::FooBar_int';
  sub do_advance { my($self) = @_;
    return "B::do_advance;" . $self->do_step();
  }
  sub do_step { "B::do_step;" }
  sub get_value { 1 }
}

my $b = B->new();
isa_ok $b, 'B';
is $b->step(), "Bar::step;Foo::advance;B::do_advance;B::do_step;",
   'B virtual resolution';

{
  package C;
  use base 'director_nested::FooBar_int';
  our $in_do_advance = 0;
  sub do_advance { my($self) = @_;
    # found a case where upcall didn't happen right in a perl space
    # SUPER:: call.
    die "SUPERCALL RESOLVE FAILURE" if $in_do_advance;
    local $in_do_advance = 1;
    return "C::do_advance;" .
      $self->SUPER::do_advance();
  }
  sub do_step { "C::do_step;" }
  sub get_value { 2 }
  sub get_name { my($self) = @_;
    return $self->director_nested::FooBar_int::get_name() . " hello";
  }
}

my $cc = C->new();
isa_ok $cc, 'C';
my $c = director_nested::FooBar_int::get_self($cc);
$c->advance();
is $c->get_name(), "FooBar::get_name hello";
is $c->name(), "FooBar::get_name hello";