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/*******************************************************************************
* Copyright (c) 2015 Obeo and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.emf.compare.tests.match;
import static java.util.Collections.emptyIterator;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import com.google.common.collect.Lists;
import java.io.IOException;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.compare.Match;
import org.eclipse.emf.compare.match.eobject.IdentifierEObjectMatcher;
import org.eclipse.emf.compare.tests.nodes.Node;
import org.eclipse.emf.compare.tests.nodes.NodesFactory;
import org.eclipse.emf.ecore.EObject;
import org.junit.Test;
/**
* Test class for {@link IdentifierEObjectMatcher}.
*
* @author <a href="mailto:axel.richard@obeo.fr">Axel Richard</a>
*/
@SuppressWarnings("nls")
public class IdentifierEObjectMatcherTest {
/**
* Test the matchPerId function, especially the containment between matches.
*
* @throws IOException
*/
@Test
public void testMatchPerIdFunction() throws IOException {
Node root = NodesFactory.eINSTANCE.createNode();
root.setName("root");
Node nodeLevel1 = NodesFactory.eINSTANCE.createNode();
nodeLevel1.setName("nodeLevel1");
Node nodeLevel2 = NodesFactory.eINSTANCE.createNode();
nodeLevel2.setName("nodeLevel2");
Node nodeLevel3 = NodesFactory.eINSTANCE.createNode();
nodeLevel3.setName("nodeLevel3");
root.getContainmentRef1().add(nodeLevel1);
nodeLevel1.getContainmentRef1().add(nodeLevel2);
nodeLevel2.getContainmentRef1().add(nodeLevel3);
// Give the eObjects to matchPerId function in opposite containment order, to force the matchPerId
// method to reorganize matches.
Collection<Node> nodes = Lists.newArrayList(nodeLevel3, nodeLevel2, nodeLevel1, root);
MockIdentifierEObjectMatcher matcher = new MockIdentifierEObjectMatcher();
Iterator<? extends EObject> leftEObjects = nodes.iterator();
Iterator<? extends EObject> rightEObjects = nodes.iterator();
Iterator<? extends EObject> originEObjects = emptyIterator();
List<EObject> leftEObjectsNoID = Lists.newArrayList();
List<EObject> rightEObjectsNoID = Lists.newArrayList();
List<EObject> originEObjectsNoID = Lists.newArrayList();
Set<Match> matches = matcher.matchPerId(leftEObjects, rightEObjects, originEObjects, leftEObjectsNoID,
rightEObjectsNoID, originEObjectsNoID);
assertEquals(1, matches.size());
Match rootMatch = matches.iterator().next();
assertEquals(root, rootMatch.getLeft());
EList<Match> rootSubMatches = rootMatch.getSubmatches();
assertEquals(1, rootSubMatches.size());
Match nodeLevel1Match = rootSubMatches.iterator().next();
assertEquals(nodeLevel1, nodeLevel1Match.getLeft());
EList<Match> nodeLevel1SubMatches = nodeLevel1Match.getSubmatches();
assertEquals(1, nodeLevel1SubMatches.size());
Match nodeLevel2Match = nodeLevel1SubMatches.iterator().next();
assertEquals(nodeLevel2, nodeLevel2Match.getLeft());
EList<Match> nodeLevel2SubMatches = nodeLevel2Match.getSubmatches();
assertEquals(1, nodeLevel2SubMatches.size());
Match nodeLevel3Match = nodeLevel2SubMatches.iterator().next();
assertEquals(nodeLevel3, nodeLevel3Match.getLeft());
EList<Match> nodeLevel3SubMatches = nodeLevel3Match.getSubmatches();
assertTrue(nodeLevel3SubMatches.isEmpty());
}
/**
* Mock {@link IdentifierEObjectMatcher} to test matchPerId method.
*
* @author <a href="mailto:axel.richard@obeo.fr">Axel Richard</a>
*/
private class MockIdentifierEObjectMatcher extends IdentifierEObjectMatcher {
@Override
public Set<Match> matchPerId(Iterator<? extends EObject> leftEObjects,
Iterator<? extends EObject> rightEObjects, Iterator<? extends EObject> originEObjects,
List<EObject> leftEObjectsNoID, List<EObject> rightEObjectsNoID,
List<EObject> originEObjectsNoID) {
return super.matchPerId(leftEObjects, rightEObjects, originEObjects, leftEObjectsNoID,
rightEObjectsNoID, originEObjectsNoID);
}
}
}
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