use Test::More tests => 10;

BEGIN {

if ($ENV{PERL_CORE}) {

chdir('t') if -d 't';

@INC = qw(../lib);

}

}

BEGIN { use_ok('NEXT') };

my $order = 0;

package A;

@ISA = qw/B C D/;

sub test { ++$order; ::ok($order==1,"test A"); $_[0]->NEXT::ACTUAL::test;}

package B;

@ISA = qw/D C/;

sub test { ++$order; ::ok($order==2,"test B"); $_[0]->NEXT::ACTUAL::test;}

package C;

@ISA = qw/D/;

sub test {

++$order; ::ok($order==4||$order==6,"test C");

$_[0]->NEXT::ACTUAL::test;

}

package D;

sub test {

++$order; ::ok($order==3||$order==5||$order==7||$order==8,"test D");

$_[0]->NEXT::ACTUAL::test;

}

package main;

my $foo = {};

bless($foo,"A");

eval{ $foo->test }

? fail("Didn't die on missing ancestor")

: pass("Correctly dies after full traversal");