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use Test::More tests => 74;
use Graph;
my $g = Graph->new(multiedged => 1);
$g->add_edge_by_id("a", "b", "hot");
ok( !$g->has_edge_attributes_by_id("a", "b", "hot") );
ok( !$g->has_edge_attributes_by_id("a", "b", "hot") );
ok( $g->set_edge_attribute_by_id("a", "b", "hot", "color", "red") );
ok( $g->has_edge_attribute_by_id("a", "b", "hot", "color") );
ok( $g->has_edge_attribute_by_id("a", "b", "hot", "color") );
ok( $g->has_edge_attributes_by_id("a", "b", "hot") );
ok( $g->has_edge_attributes_by_id("a", "b", "hot") );
is( $g->get_edge_attribute_by_id("a", "b", "hot", "color"), "red" );
is( $g->get_edge_attribute_by_id("a", "b", "hot", "color"), "red" );
is( $g->get_edge_attribute_by_id("a", "b", "hot", "colour"), undef );
is( $g->get_edge_attribute_by_id("a", "b", "hot", "colour"), undef );
ok( $g->set_edge_attribute_by_id("a", "b", "hot", "color", "green") );
ok( $g->has_edge_attributes_by_id("a", "b", "hot") );
ok( $g->has_edge_attributes_by_id("a", "b", "hot") );
is( $g->get_edge_attribute_by_id("a", "b", "hot", "color"), "green" );
is( $g->get_edge_attribute_by_id("a", "b", "hot", "color"), "green" );
my $attr = $g->get_edge_attributes_by_id("a", "b", "hot");
my @name = $g->get_edge_attribute_names_by_id("a", "b", "hot");
my @val = $g->get_edge_attribute_values_by_id("a", "b", "hot");
is( scalar keys %$attr, 1 );
is( scalar @name, 1 );
is( scalar @val, 1 );
is( $attr->{color}, "green" );
is( $name[0], "color" );
is( $val[0], "green" );
ok( $g->set_edge_attribute_by_id("a", "b", "hot", "taste", "rhubarb") );
ok( $g->has_edge_attributes_by_id("a", "b", "hot") );
ok( $g->has_edge_attributes_by_id("a", "b", "hot") );
is( $g->get_edge_attribute_by_id("a", "b", "hot", "taste"), "rhubarb" );
is( $g->get_edge_attribute_by_id("a", "b", "hot", "taste"), "rhubarb" );
is( $g->get_edge_attribute_by_id("a", "b", "hot", "color"), "green" );
is( $g->get_edge_attribute_by_id("a", "b", "hot", "taste"), "rhubarb" );
$attr = $g->get_edge_attributes_by_id("a", "b", "hot");
@name = sort $g->get_edge_attribute_names_by_id("a", "b", "hot");
@val = sort $g->get_edge_attribute_values_by_id("a", "b", "hot");
is( scalar keys %$attr, 2 );
is( scalar @name, 2 );
is( scalar @val, 2 );
is( $attr->{color}, "green" );
is( $attr->{taste}, "rhubarb" );
is( $name[0], "color" );
is( $val[0], "green" );
is( $name[1], "taste" );
is( $val[1], "rhubarb" );
ok( $g->delete_edge_attribute_by_id("a", "b", "hot", "color" ) );
ok( !$g->has_edge_attribute_by_id("a", "b", "hot", "color" ) );
ok( $g->has_edge_attributes_by_id("a", "b", "hot") );
is( $g->get_edge_attribute_by_id("a", "b", "hot", "taste"), "rhubarb" );
ok( $g->delete_edge_attributes_by_id("a", "b", "hot") );
ok( !$g->has_edge_attributes_by_id("a", "b", "hot") );
is( $g->get_edge_attribute_by_id("a", "b", "hot", "taste"), undef );
ok( !$g->delete_edge_attribute_by_id("a", "b", "hot", "taste" ) );
ok( !$g->delete_edge_attributes_by_id("a", "b", "hot") );
$attr = $g->get_edge_attributes_by_id("a", "b", "hot");
@name = $g->get_edge_attribute_names_by_id("a", "b", "hot");
@val = $g->get_edge_attribute_values_by_id("a", "b", "hot");
is( scalar keys %$attr, 0 );
is( scalar @name, 0 );
is( scalar @val, 0 );
is( $g->edges, 0 ); # No "a", "b" anymore.
$g->add_weighted_edge_by_id("c", "d", "hot", 42);
ok( $g->has_edge_by_id("c", "d", "hot") );
is( $g->get_edge_attribute_by_id("c", "d", "hot", "weight"), 42 );
is( $g->edges, 1 );
$g->add_weighted_edges_by_id("c", "d", 43, "e", "f", 44, "hot");
is( $g->get_edge_weight_by_id("c", "d", "hot"), 43 );
is( $g->get_edge_weight_by_id("e", "f", "hot"), 44 );
is( $g->edges, 2 );
$g->add_weighted_path_by_id("c", 45, "d", 46, "e", "hot");
is( $g->get_edge_weight_by_id("c", "d", "hot"), 45 );
is( $g->get_edge_weight_by_id("d", "e", "hot"), 46 );
is( $g->edges, 3 );
use Graph::Undirected;
my $u = Graph::Undirected->new(multiedged => 1);
$u->add_weighted_edge_by_id('a', 'b', 'hot', 123);
is($u->get_edge_weight_by_id('a', 'b', 'hot'), 123);
is($u->get_edge_weight_by_id('b', 'a', 'hot'), 123);
ok($u->set_edge_attributes_by_id('a', 'b', 'hot',
{ 'color' => 'pearl', 'weight' => 'heavy' }));
$attr = $u->get_edge_attributes_by_id('a', 'b', 'hot');
is(scalar keys %$attr, 2);
is($attr->{color}, 'pearl');
is($attr->{weight}, 'heavy');
ok( $g->set_edge_weight_by_id("a", "b", "hot", 42));
is( $g->get_edge_weight_by_id("a", "b", "hot"), 42);
ok( $g->has_edge_weight_by_id("a", "b", "hot"));
ok(!$g->has_edge_weight_by_id("a", "c", "hot"));
ok( $g->delete_edge_weight_by_id("a", "b", "hot"));
ok(!$g->has_edge_weight_by_id("a", "b", "hot"));
is( $g->get_edge_weight_by_id("a", "b", "hot"), undef);
my $h = Graph->new(multiedged => 1);
eval '$h->set_edge_attribute("foo", "bar", "color", "gold")';
like($@, qr/set_edge_attribute: expected non-multiedged/);
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