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|
use Test::More tests => 32;
use strict;
use warnings;
# use lib qw(. t);
# BEGIN { require "models.pl"; }
#
# my @files = map { "data/$_" } qw(foaf.xrdf);
# my @models = test_models( @files );
use RDF::Query;
use RDF::Query::Node qw(iri);
################################################################################
# Log::Log4perl::init( \q[
# log4perl.category.rdf.query.plan.path = TRACE, Screen
#
# log4perl.appender.Screen = Log::Log4perl::Appender::Screen
# log4perl.appender.Screen.stderr = 0
# log4perl.appender.Screen.layout = Log::Log4perl::Layout::SimpleLayout
# ] );
################################################################################
{
my $model = RDF::Trine::Model->temporary_model;
RDF::Query->new(<<"END", { update => 1 })->execute($model);
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
INSERT DATA {
<listpointer> <mylist> <list1> .
<list1> rdf:first 1 ;
rdf:rest <list2> .
<list2> rdf:first 2 ;
rdf:rest <list3> .
<list3> rdf:first 3 ;
rdf:rest rdf:nil .
}
END
RDF::Query->new(<<"END", { update => 1 })->execute($model);
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
INSERT DATA {
<bob> foaf:name "Bob" .
<alice> foaf:name "Alice" .
<eve> foaf:knows <alice>, <bob> .
}
END
{
print "# /-path\n";
my $query = RDF::Query->new( <<"END", { lang => 'sparql11' } );
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
SELECT ?name
WHERE {
?p foaf:knows/foaf:name ?name
}
END
my $count = 0;
my $iter = $query->execute( $model );
isa_ok( $iter, 'RDF::Trine::Iterator' );
while (my $row = $iter->next) {
isa_ok( $row->{name}, 'RDF::Query::Node::Literal' );
like($row->{name}->literal_value, qr/Alice|Bob/, 'expected person name');
$count++;
}
is( $count, 2, 'expected result count' );
}
{
print "# rdf:List +-path\n";
my $query = RDF::Query->new( <<"END", { lang => 'sparql11' } );
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX test: <http://kasei.us/e/ns/test#>
SELECT *
WHERE {
<listpointer> <mylist> ?list .
?list rdf:rest+/rdf:first ?value .
}
END
my $count = 0;
my $iter = $query->execute( $model );
isa_ok( $iter, 'RDF::Trine::Iterator' );
my @got;
while (my $row = $iter->next) {
my $value = $row->{value};
isa_ok( $value, 'RDF::Query::Node::Literal' );
like($value->literal_value, qr/^[123]$/, 'expected list value');
$got[ $value->literal_value - 1 ] = $value->literal_value;
$count++;
}
is_deeply( \@got, [undef, 2, 3], 'all expected values seen' );
}
{
print "# rdf:List *-path\n";
my $query = RDF::Query->new( <<"END", { lang => 'sparql11' } );
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX test: <http://kasei.us/e/ns/test#>
SELECT *
WHERE {
<listpointer> <mylist> ?list .
?list rdf:rest*/rdf:first ?value .
}
END
my $count = 0;
my $iter = $query->execute( $model );
isa_ok( $iter, 'RDF::Trine::Iterator' );
my @got;
while (my $row = $iter->next) {
my $value = $row->{value};
isa_ok( $value, 'RDF::Query::Node::Literal' );
like($value->literal_value, qr/^[123]$/, 'expected list value');
$got[ $value->literal_value - 1 ] = $value->literal_value;
$count++;
}
is_deeply( \@got, [1, 2, 3], 'all expected values seen' );
}
}
{
print "# property path in GRAPH\n";
my $model = RDF::Trine::Model->temporary_model;
my $insert = RDF::Query->new(<<"END", { update => 1 });
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
INSERT DATA {
GRAPH <g1> {
<eve> foaf:knows <alice>, <bob> .
<alice> foaf:name "Alice" .
<bob> foaf:name "Bob" .
}
GRAPH <g2> {
_:x foaf:knows <eve> .
<eve> foaf:name "Eve" .
}
}
END
my ($p, $c) = $insert->prepare( $model );
$insert->execute_plan( $p, $c );
{
my $query = RDF::Query->new( <<"END", { lang => 'sparql11' } );
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
SELECT *
WHERE {
GRAPH <g1> {
?p foaf:knows/foaf:name ?name .
}
}
END
my ($p, $c) = $query->prepare( $model );
my $iter = $query->execute_plan( $p, $c );
isa_ok( $iter, 'RDF::Trine::Iterator' );
my @got;
while (my $row = $iter->next) {
like( $row->{name}, qr/Bob|Alice/, 'expected property path value restricted to graph' );
}
is( $iter->seen_count, 2, 'expected result count' );
}
{
my $query = RDF::Query->new( <<"END", { lang => 'sparql11' } );
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
SELECT *
WHERE {
GRAPH ?g {
?p foaf:knows/foaf:name ?name .
}
}
END
my ($p, $c) = $query->prepare( $model );
# warn $query->pattern->sse;
# warn $p->sse;
my $iter = $query->execute_plan( $p, $c );
isa_ok( $iter, 'RDF::Trine::Iterator' );
my @got;
my %expect = (
'g1' => qr/Alice|Bob/,
'g2' => qr/Eve/,
);
while (my $row = $iter->next) {
my $g = $row->{g}->uri_value;
like( $g, qr/^g[12]$/, 'expected graph binding' );
my $pat = $expect{ $g };
like( $row->{name}, $pat, 'expected property path value for graph ' . $g );
}
is( $iter->seen_count, 3, 'expected result count' );
}
}
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