# -*-Perl-*- Test Harness script for Bioperl
# $Id$

use strict;

BEGIN { 
    use lib '.';
	use Bio::Root::Test;
	
	test_begin(-tests => 7);
    
	use_ok('Bio::Coordinate::Graph');
}

ok my $graph = Bio::Coordinate::Graph->new();

# graph structure
my $dag = {
	   9  => [],
	   8  => [9],
	   7  => [],
	   6  => [7, 8],
	   5  => [],
	   4  => [5],
	   3  => [6],
	   2  => [3, 4, 6],
	   1  => [2]
	  };

ok $graph->hash_of_arrays($dag);


my $a = 1;
my $b = 6;
is my @a = $graph->shortest_path($a, $b), 3;

$a = 7;
$b = 8;
is @a = $graph->shortest_path($a, $b), 1;

$a = 8;
$b = 9;
is @a = $graph->shortest_path($a, $b), 2;
$b = 2;
is @a = $graph->shortest_path($a, $b), 3;