1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
#!/usr/bin/perl
use strict;
use warnings;
use Graph::Directed;
use Graph::MoreUtils qw( line );
use List::Util qw( all );
use Test::More tests => 7;
my( $g, $l );
$g = Graph::Directed->new;
$g->add_edge( 0, 0 );
$g->add_edge( 0, 1 );
$g->add_edge( 1, 0 );
$g->add_edge( 1, 1 );
is $g->edges, 4;
$l = line( $g );
is $l->vertices, 4;
is $l->edges, 8;
ok all { $l->in_degree( $_ ) == 2 && $l->out_degree( $_ ) == 2 } $l->vertices;
$l = line( $l );
is $l->vertices, 8;
is $l->edges, 16;
ok all { $l->in_degree( $_ ) == 2 && $l->out_degree( $_ ) == 2 } $l->vertices;
|
