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use Test::More tests => 74;
use Test::Exception;
use utf8;
use strict;
use warnings;
no warnings 'redefine';
use Data::Dumper;
use DBI;
use RDF::Trine;
use RDF::Trine::Model::StatementFilter;
use RDF::Trine::Namespace;
use RDF::Trine::Store::DBI;
use RDF::Trine::Node;
use RDF::Trine::Pattern;
use RDF::Trine::Statement;
use File::Temp qw(tempfile);
my $rdf = RDF::Trine::Namespace->new('http://www.w3.org/1999/02/22-rdf-syntax-ns#');
my $rdfs = RDF::Trine::Namespace->new('http://www.w3.org/2000/01/rdf-schema#');
my $foaf = RDF::Trine::Namespace->new('http://xmlns.com/foaf/0.1/');
my $kasei = RDF::Trine::Namespace->new('http://kasei.us/');
my $nil = RDF::Trine::Node::Nil->new();
my $b = RDF::Trine::Node::Blank->new();
my $p = RDF::Trine::Node::Resource->new('http://kasei.us/about/foaf.xrdf#greg');
my $st0 = RDF::Trine::Statement->new( $p, $rdf->type, $foaf->Person );
my $st1 = RDF::Trine::Statement->new( $p, $foaf->name, RDF::Trine::Node::Literal->new('Gregory Todd Williams') );
my $st1q = RDF::Trine::Statement::Quad->new( $p, $foaf->name, RDF::Trine::Node::Literal->new('Gregory Todd Williams'), $nil );
my $st2 = RDF::Trine::Statement->new( $b, $rdf->type, $foaf->Person );
my $st3 = RDF::Trine::Statement->new( $b, $foaf->name, RDF::Trine::Node::Literal->new('Eve') );
my $st3q = RDF::Trine::Statement::Quad->new( $b, $foaf->name, RDF::Trine::Node::Literal->new('Eve'), $nil );
{
my $model = model();
isa_ok( $model, 'RDF::Trine::Model' );
$model->add_statement( $_ ) for ($st0, $st1, $st2, $st3);
{
is( $model->count_statements(), 4, 'initial model size' );
$model->add_statement( $_ ) for ($st0);
is( $model->count_statements(), 4, 'model size after duplicate statements' );
is( $model->count_statements( undef, $foaf->name, undef ), 2, 'count of foaf:name statements after redundant add' );
}
{
my $stream = $model->get_statements( $p, $foaf->name, RDF::Trine::Node::Variable->new('name') );
my $st = $stream->next;
is_deeply( $st, $st1q, 'got foaf:name statement' );
is( $stream->next, undef, 'expected end-of-stream (only one foaf:name statement)' );
}
{
my $stream = $model->get_statements( $b, $foaf->name, RDF::Trine::Node::Variable->new('name') );
my $st = $stream->next;
is_deeply( $st, $st3q, 'got foaf:name statement (with bnode in triple)' );
is( $stream->next, undef, 'expected end-of-stream (only one foaf:name statement with bnode)' );
}
{
my $stream = $model->get_statements( RDF::Trine::Node::Variable->new('p'), $foaf->name, RDF::Trine::Node::Literal->new('Gregory Todd Williams') );
my $st = $stream->next;
is_deeply( $st, $st1q, 'got foaf:name statement (with literal in triple)' );
is( $stream->next, undef, 'expected end-of-stream (only one foaf:name statement with literal)' );
}
{
my $stream = $model->get_statements( RDF::Trine::Node::Variable->new('p'), $foaf->name, RDF::Trine::Node::Variable->new('name') );
my $count = 0;
while (my $st = $stream->next) {
my $subj = $st->subject;
isa_ok( $subj, 'RDF::Trine::Node' );
$count++;
}
is( $count, 2, 'got two results for triple { ?p foaf:name ?name }' );
}
{
my $p1 = RDF::Trine::Statement->new( RDF::Trine::Node::Variable->new('p'), $rdf->type, $foaf->Person );
my $p2 = RDF::Trine::Statement->new( RDF::Trine::Node::Variable->new('p'), $foaf->name, RDF::Trine::Node::Variable->new('name') );
my $pattern = RDF::Trine::Pattern->new( $p1, $p2 );
{
my $stream = $model->get_pattern( $pattern );
my $count = 0;
while (my $b = $stream->next) {
isa_ok( $b, 'HASH' );
isa_ok( $b->{p}, 'RDF::Trine::Node', 'node person' );
isa_ok( $b->{name}, 'RDF::Trine::Node::Literal', 'literal name' );
like( $b->{name}->literal_value, qr/Eve|Gregory/, 'name pattern' );
$count++;
}
is( $count, 2, 'got two results for pattern { ?p a foaf:Person ; foaf:name ?name }' );
}
{
{
my $stream = $model->get_pattern( $pattern, undef, orderby => [ 'name' => 'ASC' ] );
is_deeply( [ $stream->sorted_by ], ['name' => 'ASC'], 'results sort order (ASC)' );
my $count = 0;
my @expect = ('Eve', 'Gregory Todd Williams');
while (my $b = $stream->next) {
isa_ok( $b, 'HASH' );
isa_ok( $b->{p}, 'RDF::Trine::Node', 'node person' );
my $name = shift(@expect);
is( $b->{name}->literal_value, $name, 'name pattern' );
$count++;
}
is( $count, 2, 'got two results for ascending-ordered pattern { ?p a foaf:Person ; foaf:name ?name }' );
}
{
my $stream = $model->get_pattern( $pattern, undef, orderby => [ 'name' => 'DESC' ] );
is_deeply( [ $stream->sorted_by ], ['name' => 'DESC'], 'results sort order (DESC)' );
my $count = 0;
my @expect = ('Gregory Todd Williams', 'Eve');
while (my $b = $stream->next) {
isa_ok( $b, 'HASH' );
isa_ok( $b->{p}, 'RDF::Trine::Node', 'node person' );
my $name = shift(@expect);
is( $b->{name}->literal_value, $name, 'name pattern' );
$count++;
}
is( $count, 2, 'got two results for descending-ordered pattern { ?p a foaf:Person ; foaf:name ?name }' );
}
}
{
my $stream = $model->get_pattern( $pattern, undef, orderby => [ 'date' => 'ASC' ] );
is_deeply( [ $stream->sorted_by ], [], 'results sort order for unknown binding' );
}
{
throws_ok {
my $stream = $model->get_pattern( $pattern, undef, orderby => [ 'name' ] );
} 'Error', 'bad ordering request throws exception';
}
{
my $stream = $model->get_pattern( $st0 );
my $empty = $stream->next;
is_deeply( $empty, RDF::Trine::VariableBindings->new({}), 'empty binding on no-variable pattern' );
is( $stream->next, undef, 'end-of-stream' );
}
}
{
my $stream = $model->as_stream();
isa_ok( $stream, 'RDF::Trine::Iterator::Graph' );
my $count = 0;
while (my $st = $stream->next) {
my $p = $st->predicate;
like( $p->uri_value, qr<(#type|/name)$>, 'as_stream statement' );
$count++;
}
is( $count, 4, 'expected model statement count (4)' );
}
{
my $st5 = RDF::Trine::Statement->new( $p, $foaf->name, RDF::Trine::Node::Literal->new('グレゴリ ウィリアムス', 'jp') );
$model->add_statement( $st5 );
my $pattern = RDF::Trine::Statement->new( $p, $foaf->name, RDF::Trine::Node::Variable->new('name') );
my $stream = $model->get_pattern( $pattern );
my $count = 0;
while (my $b = $stream->next) {
isa_ok( $b, 'HASH' );
isa_ok( $b->{name}, 'RDF::Trine::Node::Literal', 'literal name' );
like( $b->{name}->literal_value, qr/Gregory|グレゴリ/, 'name pattern with language-tagged result' );
$count++;
}
is( $count, 2, 'expected result count (2 names)' );
is( $model->count_statements(), 5, 'model size' );
$model->remove_statement( $st5 );
is( $model->count_statements(), 4, 'model size after remove_statement' );
}
{
my $st6 = RDF::Trine::Statement->new( $p, $foaf->name, RDF::Trine::Node::Literal->new('Gregory Todd Williams', undef, 'http://www.w3.org/2000/01/rdf-schema#Literal') );
$model->add_statement( $st6 );
my $pattern = RDF::Trine::Statement->new( $p, $foaf->name, RDF::Trine::Node::Variable->new('name') );
my $stream = $model->get_pattern( $pattern );
my $count = 0;
my $dt = 0;
while (my $b = $stream->next) {
my $name = $b->{name};
isa_ok( $b, 'HASH' );
isa_ok( $name, 'RDF::Trine::Node::Literal', 'literal name' );
is( $name->literal_value, 'Gregory Todd Williams', 'name pattern with datatyped result' );
if (my $type = $name->literal_datatype) {
is( $type, 'http://www.w3.org/2000/01/rdf-schema#Literal', 'datatyped literal' );
$dt++;
}
$count++;
}
is( $count, 2, 'expected result count (2 names)' );
is( $dt, 1, 'expected result count (1 datatyped literal)' );
}
{
$model->remove_statements( $p );
is( $model->count_statements(), 2, 'model size after remove_statements' );
}
throws_ok {
my $pattern = RDF::Trine::Pattern->new();
my $stream = $model->get_pattern( $pattern );
} 'RDF::Trine::Error::CompilationError', 'empty GGP throws exception';
################################################################################
{
my $stream = $model->get_statements( undef, $rdf->type, $foaf->Person );
isa_ok( $stream, 'RDF::Trine::Iterator' );
my $st = $stream->next;
isa_ok( $st, 'RDF::Trine::Statement', 'got expected type statement' );
}
is( $model->count_statements(), 2, 'model size before add_rule' );
$model->add_rule( sub {
my $st = shift;
my $p = $st->predicate;
return 0 if ($p->equal( $rdf->type ));
return 1;
warn $st->as_string;
} );
is( $model->count_statements(), 1, 'model size after add_rule' );
{
my $stream = $model->get_statements( undef, $rdf->type, $foaf->person );
isa_ok( $stream, 'RDF::Trine::Iterator' );
my $st = $stream->next;
is( $st, undef, 'expected empty iterator for hidden type statement' );
}
}
sub model {
my $store = RDF::Trine::Store::DBI->new();
$store->init();
my $model = RDF::Trine::Model::StatementFilter->new( $store );
return $model;
}
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