/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hp.hpl.jena.graph.query.test;
import com.hp.hpl.jena.graph.*;
import com.hp.hpl.jena.graph.query.Query;
import com.hp.hpl.jena.util.iterator.ExtendedIterator;
import com.hp.hpl.jena.vocabulary.RDF;
import junit.framework.*;
public class TestQueryReification extends QueryTestBase
{
public TestQueryReification( String name )
{ super( name ); }
public static TestSuite suite()
{ return new TestSuite( TestQueryReification.class ); }
public Graph getGraph()
{ return Factory.createDefaultGraph(); }
public Graph getGraph( String triples )
{ return graphAdd( getGraph(), triples ); }
public void testS()
{
Graph g = geGraphSPO();
Query q = new Query().addMatch( Query.X, RDF.Nodes.subject, Query.S );
ExtendedIterator<Node> it = q.executeBindings( g, new Node[] {Query.X, Query.S} ).mapWith( select(1) );
assertEquals( nodeSet( "S" ), it.toSet() );
}
public void testP()
{
Graph g = geGraphSPO();
Query q = new Query().addMatch( Query.X, RDF.Nodes.predicate, Query.P );
ExtendedIterator<Node> it = q.executeBindings( g, new Node[] {Query.X, Query.P} ).mapWith( select(1) );
assertEquals( nodeSet( "P" ), it.toSet() );
}
public void testO()
{
Graph g = geGraphSPO();
Query q = new Query().addMatch( Query.X, RDF.Nodes.object, Query.O );
ExtendedIterator<Node> it = q.executeBindings( g, new Node[] {Query.X, Query.O} ).mapWith( select(1) );
assertEquals( nodeSet( "O" ), it.toSet() );
}
protected Graph geGraphSPO()
{
return getGraph( "_x rdf:subject S; _x rdf:predicate P; _x rdf:object O; _x rdf:type rdf:Statement" );
}
}