/*
Copyright 2008-2010 Gephi
Authors : Mathieu Bastian <mathieu.bastian@gephi.org>
Website : http://www.gephi.org
This file is part of Gephi.
DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
Copyright 2011 Gephi Consortium. All rights reserved.
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General Public License Version 3 only ("GPL") or the Common
Development and Distribution License("CDDL") (collectively, the
"License"). You may not use this file except in compliance with the
License. You can obtain a copy of the License at
http://gephi.org/about/legal/license-notice/
or /cddl-1.0.txt and /gpl-3.0.txt. See the License for the
specific language governing permissions and limitations under the
License. When distributing the software, include this License Header
Notice in each file and include the License files at
/cddl-1.0.txt and /gpl-3.0.txt. If applicable, add the following below the
License Header, with the fields enclosed by brackets [] replaced by
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"Portions Copyrighted [year] [name of copyright owner]"
If you wish your version of this file to be governed by only the CDDL
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"[Contributor] elects to include this software in this distribution
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However, if you add GPL Version 3 code and therefore, elected the GPL
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Contributor(s):
Portions Copyrighted 2011 Gephi Consortium.
*/
package org.gephi.statistics.plugin;
import org.gephi.graph.api.DirectedGraph;
import org.gephi.graph.api.Edge;
import org.gephi.graph.api.Graph;
import org.gephi.graph.api.GraphController;
import org.gephi.graph.api.GraphModel;
import org.gephi.graph.api.Node;
import org.gephi.project.api.ProjectController;
import org.gephi.project.impl.ProjectControllerImpl;
import org.openide.util.Lookup;
import static org.testng.Assert.*;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
/**
*
* @author Anna
*/
public class WeightedDegreeNGTest {
private ProjectController pc;
@BeforeClass
public void setUp() {
pc = Lookup.getDefault().lookup(ProjectControllerImpl.class);
}
@BeforeMethod
public void initialize() {
pc.newProject();
}
@AfterMethod
public void clean() {
pc.closeCurrentProject();
}
@Test
public void testOneNodeDegree() {
GraphModel graphModel = GraphGenerator.generateNullUndirectedGraph(1);
Graph graph = graphModel.getGraph();
Node n = graph.getNode("0");
WeightedDegree d = new WeightedDegree();
d.execute(graph);
assertEquals(n.getAttribute(WeightedDegree.WDEGREE), 0.0);
}
@Test
public void testNullGraphDegree() {
GraphModel graphModel = GraphGenerator.generateNullUndirectedGraph(5);
Graph graph = graphModel.getGraph();
Node n = graph.getNode("1");
WeightedDegree d = new WeightedDegree();
d.execute(graph);
double degree = (Double) n.getAttribute(WeightedDegree.WDEGREE);
double avDegree = d.getAverageDegree();
assertEquals(degree, 0.0);
assertEquals(avDegree, 0.0);
}
@Test
public void testCompleteGraphDegree() {
GraphModel graphModel = GraphGenerator.generateCompleteUndirectedGraph(5);
Graph graph = graphModel.getGraph();
Node n = graph.getNode("2");
WeightedDegree d = new WeightedDegree();
d.execute(graph);
assertEquals(n.getAttribute(WeightedDegree.WDEGREE), 4.0);
}
@Test
public void testSelfLoopGraphDegree() {
GraphModel graphModel = GraphGenerator.generateSelfLoopUndirectedGraph(1);
Graph graph = graphModel.getGraph();
Node n = graph.getNode("0");
WeightedDegree d = new WeightedDegree();
d.execute(graph);
assertEquals(n.getAttribute(WeightedDegree.WDEGREE), 2.0);
}
@Test
public void testSelfLoopDirectedGraphDegree() {
GraphModel graphModel = GraphGenerator.generateSelfLoopDirectedGraph(1);
DirectedGraph graph = graphModel.getDirectedGraph();
Node n = graph.getNode("0");
WeightedDegree d = new WeightedDegree();
d.execute(graph);
assertEquals(n.getAttribute(WeightedDegree.WDEGREE), 2.0);
assertEquals(n.getAttribute(WeightedDegree.WINDEGREE), 1.0);
assertEquals(n.getAttribute(WeightedDegree.WOUTDEGREE), 1.0);
}
@Test
public void testStarGraphDegree() {
GraphModel graphModel = GraphGenerator.generateStarUndirectedGraph(5);
Graph graph = graphModel.getGraph();
Node n1 = graph.getNode("0");
Node n2 = graph.getNode("1");
WeightedDegree d = new WeightedDegree();
d.execute(graph);
double degree1 = (Double) n1.getAttribute(WeightedDegree.WDEGREE);
double degree2 = (Double) n2.getAttribute(WeightedDegree.WDEGREE);
double avDegree = d.getAverageDegree();
double expectedAvDegree = 1.6667;
double diff = Math.abs(avDegree - expectedAvDegree);
assertEquals(degree1, 5.0);
assertEquals(degree2, 1.0);
assertTrue(diff < 0.001);
}
@Test
public void testCyclicGraphDegree() {
GraphModel graphModel = GraphGenerator.generateCyclicUndirectedGraph(5);
Graph graph = graphModel.getGraph();
Node n = graph.getNode("3");
WeightedDegree d = new WeightedDegree();
d.execute(graph);
double degree = (Double) n.getAttribute(WeightedDegree.WDEGREE);
double avDegree = d.getAverageDegree();
assertEquals(degree, 2.0);
assertEquals(avDegree, 2.0);
}
@Test
public void testDirectedPathGraphDegree() {
GraphModel graphModel = GraphGenerator.generatePathDirectedGraph(2);
DirectedGraph graph = graphModel.getDirectedGraph();
Node n1 = graph.getNode("0");
Node n2 = graph.getNode("1");
WeightedDegree d = new WeightedDegree();
d.execute(graph);
double inDegree1 = (Double) n1.getAttribute(WeightedDegree.WINDEGREE);
double inDegree2 = (Double) n2.getAttribute(WeightedDegree.WINDEGREE);
double outDegree1 = (Double) n1.getAttribute(WeightedDegree.WOUTDEGREE);
double avDegree = d.getAverageDegree();
assertEquals(inDegree1, 0.0);
assertEquals(inDegree2, 1.0);
assertEquals(outDegree1, 1.0);
assertEquals(avDegree, 0.5);
}
@Test
public void testDirectedCyclicGraphDegree() {
GraphModel graphModel = GraphGenerator.generateCyclicDirectedGraph(5);
DirectedGraph graph = graphModel.getDirectedGraph();
Node n1 = graph.getNode("0");
Node n3 = graph.getNode("2");
Node n5 = graph.getNode("4");
WeightedDegree d = new WeightedDegree();
d.execute(graph);
double inDegree3 = (Double) n3.getAttribute(WeightedDegree.WINDEGREE);
double degree1 = (Double) n1.getAttribute(WeightedDegree.WDEGREE);
double outDegree5 = (Double) n5.getAttribute(WeightedDegree.WOUTDEGREE);
double avDegree = d.getAverageDegree();
assertEquals(inDegree3, 1.0);
assertEquals(degree1, 2.0);
assertEquals(outDegree5, 1.0);
assertEquals(avDegree, 1.0);
}
@Test
public void testDirectedStarOutGraphDegree() {
GraphModel graphModel = Lookup.getDefault().lookup(GraphController.class).getGraphModel();
DirectedGraph directedGraph = graphModel.getDirectedGraph();
Node firstNode = graphModel.factory().newNode("0");
directedGraph.addNode(firstNode);
for (int i = 1; i <= 5; i++) {
Node currentNode = graphModel.factory().newNode(((Integer) i).toString());
directedGraph.addNode(currentNode);
Edge currentEdge = graphModel.factory().newEdge(firstNode, currentNode);
directedGraph.addEdge(currentEdge);
}
DirectedGraph graph = graphModel.getDirectedGraph();
Node n1 = graph.getNode("0");
Node n3 = graph.getNode("2");
WeightedDegree d = new WeightedDegree();
d.execute(graph);
double inDegree1 = (Double) n1.getAttribute(WeightedDegree.WINDEGREE);
double outDegree1 = (Double) n1.getAttribute(WeightedDegree.WOUTDEGREE);
double degree3 = (Double) n3.getAttribute(WeightedDegree.WDEGREE);
assertEquals(inDegree1, 0.0);
assertEquals(outDegree1, 5.0);
assertEquals(degree3, 1.0);
}
}