| /* |
| * 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 org.apache.rya.indexing.external.tupleSet; |
| |
| import static org.junit.Assert.assertTrue; |
| |
| import org.eclipse.rdf4j.query.MalformedQueryException; |
| import org.eclipse.rdf4j.query.algebra.Projection; |
| import org.eclipse.rdf4j.query.parser.ParsedQuery; |
| import org.eclipse.rdf4j.query.parser.sparql.SPARQLParser; |
| import org.junit.Test; |
| |
| import com.google.common.base.Optional; |
| |
| /** |
| * Tests the methods of {@link ParsedQueryUtil}. |
| */ |
| public class ParsedQueryUtilTest { |
| |
| @Test |
| public void findProjection_distinctIsTopNode() throws MalformedQueryException { |
| // A SPARQL query that uses the DISTINCT keyword. |
| String sparql = |
| "SELECT DISTINCT ?a ?b " + |
| "WHERE {" + |
| "?a <http://talksTo> ?b" + |
| "}"; |
| |
| // Run the test. |
| SPARQLParser parser = new SPARQLParser(); |
| ParsedQuery query = parser.parseQuery(sparql, null); |
| Optional<Projection> projection = new ParsedQueryUtil().findProjection(query); |
| assertTrue(projection.isPresent()); |
| } |
| |
| @Test |
| public void findProjection_projectionIsTopNode() throws MalformedQueryException { |
| // A SPARQL query that will result in the Projection node being the top node. |
| String sparql = |
| "SELECT ?a ?b " + |
| "WHERE {" + |
| "?a <http://talksTo> ?b" + |
| "}"; |
| |
| // Run the test. |
| SPARQLParser parser = new SPARQLParser(); |
| ParsedQuery query = parser.parseQuery(sparql, null); |
| Optional<Projection> projection = new ParsedQueryUtil().findProjection(query); |
| assertTrue(projection.isPresent()); |
| } |
| } |