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#!/usr/bin/env perl
use strict;
use warnings;
no warnings 'redefine';
use Test::More;
use lib qw(. t);
require "models.pl";
my @files = map { "data/$_" } qw(about.xrdf foaf.xrdf);
my @models = test_models( @files );
my $tests = 1 + (scalar(@models) * 31);
plan tests => $tests;
use_ok( 'RDF::Query' );
foreach my $model (@models) {
print "\n#################################\n";
print "### Using model: $model\n\n";
{
my $query = new RDF::Query ( <<"END", undef, undef, 'sparql' );
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
SELECT ?person ?nick
WHERE {
?person foaf:name "Lauren B" .
OPTIONAL { ?person foaf:nick ?nick }
}
END
my $stream = $query->execute( $model );
isa_ok( $stream, 'RDF::Trine::Iterator' );
my $row = $stream->next;
isa_ok( $row, "HASH" );
my ($p,$n) = @{ $row }{qw(person nick)};
ok( $p->isa('RDF::Trine::Node'), 'isa_node' );
is( $n, undef, 'missing nick' );
}
{
my $query = new RDF::Query ( <<"END", undef, undef, 'sparql' );
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
SELECT ?person ?nick
WHERE {
?person foaf:name "Gregory Todd Williams" .
OPTIONAL { ?person foaf:nick ?nick }
}
END
my $stream = $query->execute( $model );
isa_ok( $stream, 'RDF::Trine::Iterator' );
while (my $row = $stream->next) {
isa_ok( $row, "HASH" );
my ($p,$n) = @{ $row }{qw(person nick)};
ok( $p->isa('RDF::Trine::Node'), 'isa_node' );
ok( $n->isa('RDF::Trine::Node::Literal'), 'isa_literal(nick)' );
like( ($n and $n->as_string), qr/kasei|The Samo Fool/, ($n and $n->as_string) );
last;
}
}
{
print "# optional with trailing triples\n";
my $query = new RDF::Query ( <<"END", undef, undef, 'sparql' );
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
SELECT ?person ?nick ?page
WHERE {
?person foaf:name "Gregory Todd Williams" .
OPTIONAL { ?person foaf:nick ?nick } .
?person foaf:homepage ?page
}
END
my $stream = $query->execute( $model );
isa_ok( $stream, 'RDF::Trine::Iterator' );
while (my $row = $stream->next) {
isa_ok( $row, "HASH" );
my ($p,$n,$h) = @{ $row }{qw(person nick page)};
ok( $p->isa('RDF::Trine::Node'), 'isa_node' );
ok( $n->isa('RDF::Trine::Node::Literal'), 'isa_literal(nick)' );
ok( $h->isa('RDF::Trine::Node::Resource'), 'isa_resource(homepage)' );
is( $h->uri_value, 'http://kasei.us/' );
like( ($n and $n->as_string), qr/kasei|The Samo Fool/, ($n and $n->as_string) );
last;
}
}
{
print "# 1-triple optional\n";
my $query = new RDF::Query ( <<"END", undef, undef, 'sparql' );
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX dc: <http://purl.org/dc/elements/1.1/>
SELECT ?person ?h
WHERE {
?person foaf:name "Gregory Todd Williams" .
OPTIONAL {
?person foaf:homepage ?h .
}
}
END
my $stream = $query->execute( $model );
isa_ok( $stream, 'RDF::Trine::Iterator' );
my $row = $stream->next;
isa_ok( $row, "HASH" );
my ($p,$h) = @{ $row }{qw(person h)};
ok( $p->isa('RDF::Trine::Node'), 'isa_node(person)' );
ok( $h->isa('RDF::Trine::Node'), 'isa_node(homepage)' );
}
{
print "# 2-triple optional\n";
my $query = new RDF::Query ( <<"END", undef, undef, 'sparql' );
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX dc: <http://purl.org/dc/elements/1.1/>
SELECT ?person ?h ?title
WHERE {
?person foaf:name "Gregory Todd Williams" .
OPTIONAL {
?person foaf:homepage ?h .
?h dc:title ?title
}
}
END
my $stream = $query->execute( $model );
isa_ok( $stream, 'RDF::Trine::Iterator' );
my $row = $stream->next;
isa_ok( $row, "HASH" );
my ($p,$h,$t) = @{ $row }{qw(person h title)};
ok( $p->isa('RDF::Trine::Node'), 'isa_node' );
is( $h, undef, 'no homepage' );
is( $t, undef, 'no homepage title' );
}
{
my $query = new RDF::Query ( <<"END", undef, undef, 'sparql' );
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
SELECT ?person ?nick
WHERE {
?person foaf:name "Lauren B" .
OPTIONAL { ?person foaf:nick ?nick } .
FILTER BOUND(?nick) .
}
END
my $stream = $query->execute( $model );
isa_ok( $stream, 'RDF::Trine::Iterator' );
my $row = $stream->next;
ok( not($row), 'no results: successful BOUND() filter' );
}
{
my $query = new RDF::Query ( <<"END", undef, undef, 'sparql' );
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
SELECT ?school
WHERE {
?person a foaf:Person ; foaf:nick "kasei" .
OPTIONAL {
?person foaf:schoolHomepage ?school .
} .
}
END
my $stream = $query->execute( $model );
isa_ok( $stream, 'RDF::Trine::Iterator' );
my $count = 0;
while (my $row = $stream->next) {
my $school = $row->{school};
my $str = $school->as_string;
like( $str, qr<(smmusd|wheatonma)>, "exected school: $str" );
$count++;
}
is( $count, 2, 'expected result count' );
}
}
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