| /* |
| * 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.api.function.join; |
| |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.Iterator; |
| |
| import org.apache.rya.api.model.VisibilityBindingSet; |
| import org.apache.rya.api.function.join.IterativeJoin; |
| import org.apache.rya.api.function.join.LeftOuterJoin; |
| import org.apache.rya.api.function.join.NaturalJoin; |
| import org.eclipse.rdf4j.model.ValueFactory; |
| import org.eclipse.rdf4j.model.impl.SimpleValueFactory; |
| import org.eclipse.rdf4j.query.impl.MapBindingSet; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameter; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| /** |
| * Tests the methods of {@link IterativeJoin}. |
| */ |
| @RunWith(Parameterized.class) |
| public class IterativeJoinTest { |
| |
| @Parameters |
| public static Collection<Object[]> data() { |
| return Arrays.asList(new Object[][] { |
| {new NaturalJoin()}, |
| {new LeftOuterJoin()} |
| }); |
| } |
| |
| @Parameter |
| public IterativeJoin join; |
| |
| /** |
| * This test ensures the same binding sets are created as the result of a |
| * {@link IterativeJoin} regardless of which side the notification is triggered on. |
| */ |
| @Test |
| public void naturalJoin_sideDoesNotMatter() { |
| // Create the binding sets that will be joined. |
| final ValueFactory vf = SimpleValueFactory.getInstance(); |
| |
| final MapBindingSet bs1 = new MapBindingSet(); |
| bs1.addBinding("id", vf.createLiteral("some_uid")); |
| bs1.addBinding("name", vf.createLiteral("Alice")); |
| final VisibilityBindingSet vbs1 = new VisibilityBindingSet(bs1, "a"); |
| |
| final MapBindingSet bs2 = new MapBindingSet(); |
| bs2.addBinding("id", vf.createLiteral("some_uid")); |
| bs2.addBinding("hair", vf.createLiteral("brown")); |
| final VisibilityBindingSet vbs2 = new VisibilityBindingSet(bs2, "b"); |
| |
| // new vbs1 shows up on the left, matches vbs2 on the right |
| final Iterator<VisibilityBindingSet> newLeftIt = join.newLeftResult(vbs1, Collections.singleton(vbs2).iterator()); |
| final VisibilityBindingSet newLeftResult = newLeftIt.next(); |
| |
| // new vbs2 shows up on the right, matches vbs1 on the left |
| final Iterator<VisibilityBindingSet> newRightIt = join.newRightResult(Collections.singleton(vbs1).iterator(), vbs2); |
| final VisibilityBindingSet newRightResult = newRightIt.next(); |
| |
| // Ensure those two results are the same. |
| assertEquals(newLeftResult, newRightResult); |
| } |
| } |