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/*******************************************************************************
* Copyright (c) 2015 Obeo.
* 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.utils;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Lists;
import java.util.Set;
import org.eclipse.emf.compare.internal.utils.Graph;
import org.junit.Test;
/**
* We will use this to test the utility methods exposed by the {@link Graph}.
*
* @author <a href="mailto:axel.richard@obeo.fr">Axel Richard</a>
*/
@SuppressWarnings("nls")
public class GraphTest {
@Test
public void testBuildSubGraph() {
Graph<String> graph = new Graph<String>();
//@formatter:off
/*
* Add the following graph:
* e f
* | |
* b c d
* \ | /
* \ | /
* ---------
* |
* a
*/
//@formatter:on
graph.addChildren("a", ImmutableSet.of("b", "c", "d"));
graph.addChildren("c", ImmutableSet.of("e"));
graph.addChildren("d", ImmutableSet.of("f"));
Set<String> subgraph = graph.getSubgraphContaining("d", ImmutableSet.of("c"));
assertEquals(4, subgraph.size());
assertTrue(subgraph.containsAll(Lists.newArrayList("a", "b", "d", "f")));
}
}
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