use Test::More tests => 20;

require Graph::Undirected;
require Graph::Traversal::DFS;

use lib "t";
require "simple.pl";

#
# The purpose of these tests is to check to see if particular 
# bugs have been fixed in Perl's Graph
#
my $g = Graph::Undirected->new(refvertexed => 1);

ok 1;

my $seq1 = Foo->new;
my $seq2 = Foo->new;
my $seq3 = Foo->new;
my $seq4 = Foo->new;

my $str = "ljfgouyouiyougs";

$g->add_vertices($seq1,$seq2,$seq3,$seq4);
$g->add_edges([$seq1,$seq2],[$seq3,$seq4],[$seq3,$seq2]);

my @vs = $g->vertices; # OK
ok $vs[0]->xyz($str);

my $c = $g->complete; # OK
@vs = $c->vertices;
ok $vs[0]->xyz($str);

my $comp = $g->complement; # OK
@vs = $comp->vertices;
ok $vs[0]->xyz($str);

@vs = $g->interior_vertices; # OK
ok $vs[0]->xyz($str);

my $apsp = $g->APSP_Floyd_Warshall;
@vs = $apsp->path_vertices($seq1,$seq4); # OK
ok $vs[0]->xyz($str);

my $seq = $g->random_vertex; # OK
ok $seq->xyz($str);

my @rts = $g->articulation_points;
ok @rts;

my $t = Graph::Traversal::DFS->new($g);
$t->dfs;
@vs = $t->seen;
for my $seq (@vs) {
	ok $seq->xyz($str); # NOT OK in version .73
}

@vs = $g->articulation_points; 
ok $vs[0]->xyz($str); # OK in version .70
is scalar @vs, 2;

my @cc = $g->connected_components;
for my $ref (@cc) {
	for my $seq (@$ref) {
		ok $seq->xyz($str); # OK in version .70
	}
}

my @bs = $g->bridges;
ok $bs[0][0]->xyz($str); # NOT OK in version .73

my $cg = $g->connected_graph(super_component => sub { $_[0] });
@vs = $cg->vertices;
ok $vs[0]->xyz($str); # OK in version .73

my @spd = $g->SP_Dijkstra($seq1,$seq4); # OK in version .70

my @spbf = $g->SP_Bellman_Ford($seq1,$seq4); # OK in version .70

__END__