From Code to Community: Sponsoring The Perl and Raku Conference 2025 Learn more

ETJ / Graph-0.9735 / t / 26_multiedged.t 

            

              
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
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140

              
use strict; use warnings;
use Test::More tests => 61;
use Graph;
my $g = Graph->new(multiedged => 1);
is( $g->get_edge_count('a', 'b'), 0 );
ok( $g->add_edge_by_id('a', 'b', 'red') );
is( $g->get_edge_count('a', 'b'), 1 );
is $g, "a-b";
ok( $g->has_edge_by_id('a', 'b', 'red') );
ok(!$g->has_edge_by_id('a', 'b', 'blue') );
ok( $g->has_edge_by_id('a', 'b', 'red') );
ok(!$g->has_edge_by_id('a', 'b', 'blue') );
$g->add_edge_by_id('a', 'b', 'blue');
is( $g->get_edge_count('a', 'b'), 2 );
ok( $g->has_edge_by_id('a', 'b', 'blue') );
ok( $g->has_edge_by_id('a', 'b', 'red') );
$g->add_edge('a', 'b');
is $g, "a-b";
is( $g->get_edge_count('a', 'b'), 3 );
is( $g->add_edge_get_id('a', 'b'), 1);
is( $g->add_edge_get_id('a', 'b'), 2);
is( $g->add_edge_get_id('a', 'b'), 3);
is( $g->get_edge_count('a', 'b'), 6 );
ok( $g->delete_edge_by_id('a', 'b', 'blue') );
ok(!$g->has_edge_by_id('a', 'b', 'blue') );
ok( $g->has_edge_by_id('a', 'b', 'red') );
ok(!$g->delete_edge_by_id('a', 'b', 'green') );
ok(!$g->has_edge_by_id('a', 'b', 'blue') );
ok( $g->has_edge_by_id('a', 'b', 'red') );
ok(!$g->has_edge_by_id('a', 'b', 'green') );
ok( $g->delete_edge_by_id('a', 'b', 'red') );
my @i = sort $g->get_multiedge_ids('a', 'b');
is("@i", "0 1 2 3");
ok( $g->has_edge_by_id('a', 'b', '0') );
ok( $g->has_edge_by_id('a', 'b', '1') );
ok( $g->has_edge_by_id('a', 'b', '2') );
ok( $g->has_edge_by_id('a', 'b', '3') );
is( $g->get_edge_count('a', 'b'), 4 );
is( $g->delete_edge('a', 'b'), 'a,b' );
ok(!$g->has_edge_by_id('a', 'b', '0') );
ok(!$g->has_edge_by_id('a', 'b', '1') );
ok(!$g->has_edge_by_id('a', 'b', '2') );
ok(!$g->has_edge_by_id('a', 'b', '3') );
is( $g->get_multiedge_ids('a', 'b'), undef );
is( $g->add_edge_get_id('a', 'b'), 0);
ok( $g->delete_edge_by_id('a', 'b', 0) ); # exercise deleting last one
my $h = Graph->new;
eval { $h->add_edge_by_id("b", "c", "black") };
like($@, qr/add_edge_by_id: expected multiedged/);
eval { $h->has_edge_by_id("b", "c", "black") };
like($@, qr/has_edge_by_id: expected multiedged/);
eval { $h->get_multiedge_ids() };
like($@, qr/get_multiedge_ids: expected multiedged/);
eval { $h->delete_edge_by_id("b", "c", "black") };
like($@, qr/delete_edge_by_id: expected multiedged/);
$h = Graph->new(multiedged => 1, hyperedged => 1, directed => 0);
ok( $h->add_edge_by_id('u', 'v', 'w', 'genghis') );
ok( $h->add_edge_by_id('u', 'khan') );
ok( $h->has_edge('u' ,'v', 'w') );
ok(!$h->has_edge('u' ,'v') );
ok( $h->any_edge('u' ,'v') );
ok( $h->any_edge('u' ,'w') );
ok( $h->any_edge('v' ,'w') );
ok( $h->has_edge('u') );
ok(!$h->has_edge('v') );
ok(!$h->has_edge() );
ok( $h->has_edge_by_id('u', 'v', 'w', 'genghis') );
ok( $h->has_edge_by_id('u', 'khan') );
eval { Graph->new( multiedged => 1, countedged => 1 ) };
like ( $@, qr/both countedged and multiedged/ );
{
  my $g4a = Graph->new(undirected => 1, multiedged => 1);
  $g4a->add_edge_get_id("a1","s1");
  $g4a->add_edge_get_id("a2","s2");
  $g4a->add_edge_get_id("a2","a1"); # Last.
  my @e = $g4a->edges;
  is(@e, 3);
  my $g4b = Graph->new(undirected => 1, multiedged => 1);
  $g4b->add_edge_get_id("a2","a1");  # First.
  $g4b->add_edge_get_id("a1","s1");
  $g4b->add_edge_get_id("a2","s2");
  @e = $g4b->edges;
  is(@e, 3);
}
{
    # rt.cpan.org 107567 edges() missing on undirected multiedged graph
    my $graph = Graph->new(undirected => 1, multiedged => 1);
    $graph->add_vertex(0);
    $graph->add_vertex(1);
    $graph->add_edge(1,0);
    is($graph, "0=1");
    my @edges = $graph->edges;
    is_deeply(@edges, [0, 1]) or diag explain \@edges;
    is($graph->edges, 1);
}