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|
#!/usr/bin/env perl
use strict;
use warnings;
no warnings 'redefine';
use utf8;
use Test::More tests => 35;
use Test::Exception;
use Scalar::Util qw(reftype blessed);
use RDF::Query;
{
my $sparql = <<"END";
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX dc: <http://purl.org/dc/elements/1.1/>
SELECT ?name
WHERE {
[
a foaf:PersonalProfileDocument ;
foaf:maker [
a foaf:Person ;
foaf:name ?name
]
] .
}
END
my $query = RDF::Query->new( $sparql );
my $pattern = $query->pattern;
isa_ok( $pattern, 'RDF::Query::Algebra' );
is_deeply( [ $pattern->referenced_variables ], ['name'], 'ppd: referenced_variables' );
is_deeply( [ $pattern->definite_variables ], ['name'], 'ppd: definite_variables' );
is_deeply( [ $pattern->referenced_blanks ], ['a1', 'a2'], 'ppd: referenced_blanks' );
}
{
my $sparql = <<"END";
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX dc: <http://purl.org/dc/elements/1.1/>
SELECT ?name
WHERE {
?p a foaf:Person ;
foaf:name ?name .
OPTIONAL {
?p foaf:homepage ?page .
}
}
END
my $query = RDF::Query->new( $sparql );
my $pattern = $query->pattern;
isa_ok( $pattern, 'RDF::Query::Algebra' );
is_deeply( [ sort $pattern->referenced_variables ], [qw(name p page)], 'foaf-simple: referenced_variables' );
is_deeply( [ sort $pattern->definite_variables ], [qw(name p)], 'foaf-simple: definite_variables' );
is_deeply( [ sort $pattern->referenced_blanks ], [], 'foaf-simple: referenced_blanks' );
}
{
my $sparql = <<"END";
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX dc: <http://purl.org/dc/elements/1.1/>
SELECT ?name
WHERE {
{
?p a foaf:Person ;
foaf:name ?name .
OPTIONAL {
?p foaf:homepage ?page .
}
} UNION {
?d a foaf:Document ;
dc:title ?name .
}
}
END
my $query = RDF::Query->new( $sparql );
my $pattern = $query->pattern;
isa_ok( $pattern, 'RDF::Query::Algebra' );
is_deeply( [ sort $pattern->referenced_variables ], [qw(d name p page)], 'union: referenced_variables' );
is_deeply( [ sort $pattern->definite_variables ], [qw(name)], 'union: definite_variables' );
is_deeply( [ sort $pattern->referenced_blanks ], [], 'union: referenced_blanks' );
}
{
# SORTING
my $bz = RDF::Query::Node::Blank->new( 'z' );
my $bb = RDF::Query::Node::Blank->new( 'b' );
my $ba = RDF::Query::Node::Blank->new( 'a' );
my $lb = RDF::Query::Node::Literal->new( 'b' );
my $la = RDF::Query::Node::Literal->new( 'a' );
my $lal = RDF::Query::Node::Literal->new( 'a', 'en' );
my $l2d = RDF::Query::Node::Literal->new( '2.0', undef, 'http://www.w3.org/2001/XMLSchema#float' );
my $l1d = RDF::Query::Node::Literal->new( '1', undef, 'http://www.w3.org/2001/XMLSchema#integer' );
my $l01d = RDF::Query::Node::Literal->new( '01', undef, 'http://www.w3.org/2001/XMLSchema#integer' );
my $rea = RDF::Query::Node::Resource->new( 'http://example.org/a' );
my $reb = RDF::Query::Node::Resource->new( 'http://example.org/b' );
my $lea = RDF::Query::Node::Literal->new( 'http://example.org/a' );
{
cmp_ok( $ba, '<', $bb, 'blank less-than' );
cmp_ok( $bb, '>', $ba, 'blank greater-than' );
cmp_ok( $ba, '!=', $bb, 'blank not-eq' );
cmp_ok( $ba, '==', $ba, 'blank eq' );
}
{
cmp_ok( $la, '<', $lb, 'literal less-than' );
cmp_ok( $lb, '>', $la, 'literal greater-than' );
cmp_ok( $la, '!=', $lb, 'literal not-eq' );
cmp_ok( $la, '==', $la, 'literal eq' );
# cmp_ok( $la, '<', $lal, 'same-valued plain- and language-literals are unsortable' );
throws_ok {
$la <=> $l1d
} 'RDF::Query::Error::TypeError', 'different-valued plain- and datatype-literals are sortable';
cmp_ok( $l1d, '==', $l01d, 'numeric-datatype-literals are sortable (equal, but not sameTerm)' );
cmp_ok( $l2d, '>', $l1d, 'numeric-datatype-literals are sortable (greater-than, but different numeric type)' );
}
{
cmp_ok( $rea, '<', $reb, 'resource less-than' );
cmp_ok( $reb, '>', $rea, 'resource greater-than' );
cmp_ok( $rea, '!=', $reb, 'resource not-eq' );
cmp_ok( $rea, '==', $rea, 'resource eq' );
}
{
cmp_ok( $bz, '<', $la, 'blank less-than resource (different value)' );
cmp_ok( $rea, '<', $lea, 'resource less-than literal (same value)' );
cmp_ok( $rea, '<', $la, 'resource less-than literal (different value)' );
}
}
{
# Accessing Subpatterns
{
my $sparql = <<"END";
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
SELECT ?name
WHERE { [ a foaf:PersonalProfileDocument ; foaf:maker [ a foaf:Person ; foaf:name ?name ] ] }
END
my $query = RDF::Query->new( $sparql );
my $pattern = $query->pattern;
my @triples = $pattern->subpatterns_of_type('RDF::Query::Algebra::Triple');
is( scalar(@triples), 4, 'count of triple subpatterns' );
}
{
my $sparql = <<"END";
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX ex: <http://example.org/things#>
SELECT ?name ?plan ?dept ?img
WHERE
{
?person foaf:name ?name
{ ?person ex:healthplan ?plan } UNION { ?person ex:department ?dept }
OPTIONAL {
?person a foaf:Person
GRAPH ?g {
[] foaf:name ?name;
foaf:depiction ?img
}
}
}
END
my $query = RDF::Query->new( $sparql );
my $pattern = $query->pattern;
my @bgps = $pattern->subpatterns_of_type('RDF::Query::Algebra::BasicGraphPattern');
is( scalar(@bgps), 5, 'count of bgp subpatterns' );
is_deeply(
$bgps[3],
bless( [
bless([
bless( ['person'], 'RDF::Query::Node::Variable' ),
bless( ['URI','http://www.w3.org/1999/02/22-rdf-syntax-ns#type'], 'RDF::Query::Node::Resource' ),
bless( ['URI','http://xmlns.com/foaf/0.1/Person'], 'RDF::Query::Node::Resource' )
], 'RDF::Query::Algebra::Triple' )
], 'RDF::Query::Algebra::BasicGraphPattern' ),
'RDF::Query::Algebra::BasicGraphPattern'
);
my ($optional) = $pattern->subpatterns_of_type('RDF::Query::Algebra::Optional');
my @obgps = $optional->subpatterns_of_type('RDF::Query::Algebra::BasicGraphPattern');
is( scalar(@obgps), 5, 'count of bgp subpatterns under optional' );
my ($graph) = $pattern->subpatterns_of_type('RDF::Query::Algebra::NamedGraph');
is_deeply(
$graph,
bless( [ 'GRAPH',
bless( ['g'], 'RDF::Query::Node::Variable' ),
bless( [
bless( [
bless( [
bless( ['BLANK','a1'], 'RDF::Query::Node::Blank' ),
bless( ['URI','http://xmlns.com/foaf/0.1/name'], 'RDF::Query::Node::Resource' ),
bless( ['name'], 'RDF::Query::Node::Variable' ),
], 'RDF::Query::Algebra::Triple' ),
bless( [
bless( ['BLANK','a1'], 'RDF::Query::Node::Blank' ),
bless( ['URI','http://xmlns.com/foaf/0.1/depiction'], 'RDF::Query::Node::Resource' ),
bless( ['img'], 'RDF::Query::Node::Variable' ),
], 'RDF::Query::Algebra::Triple' )
], 'RDF::Query::Algebra::BasicGraphPattern' )
], 'RDF::Query::Algebra::GroupGraphPattern' )
], 'RDF::Query::Algebra::NamedGraph' ),
'deep comparison on GRAPH subpattern'
);
}
}
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