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git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/sandbox/graph2/trunk@144595 13f79535-47bb-0310-9956-ffa450edef68
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jvanzyl committed 2002-03-17 16:28:12 +00:00
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package org.apache.commons.graph;
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Commons" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* "Commons", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
/**
* DirGraphTest This test will ensure that we can represent a Directed Graph.
*/
import java.util.Set;
import java.util.HashSet;
import java.util.Iterator;
/**
* Description of the Class
*/
public class DirGraphTest
extends GraphTest
{
private String testName = null;
/**
* Constructor for the DirGraphTest object
*
* @param name
*/
public DirGraphTest(String name)
{
super(name);
this.testName = name;
}
/**
* A unit test for JUnit
*/
public void testDirNull()
throws Throwable
{
verifyGraph(makeDirNullGraph(), 0, 0);
}
/**
* A unit test for JUnit
*/
public void testSingleVertex()
throws Throwable
{
verifyGraph(makeDirSingleVertex(), 1, 0);
}
/**
* A unit test for JUnit
*/
public void testDoubleVertex()
throws Throwable
{
verifyGraph(makeDirDoubleVertex(), 2, 0);
}
/**
* A unit test for JUnit
*/
public void testSelfLoop()
throws Throwable
{
DirectedGraph IUT = makeSelfLoop();
try
{
verifyGraph(IUT, 1, 1);
verifyAdjVertices(IUT, V1,
makeSet(V1));
verifyAdjVertices(IUT, V1,
makeSet(V1),
makeSet(V1));
}
catch (Throwable t)
{
printGraph(t, IUT);
throw t;
}
}
/**
* A unit test for JUnit
*/
public void testDirectedEdge()
throws Throwable
{
DirectedGraph IUT = makeDirectedEdge();
try
{
verifyGraph(IUT, 2, 1);
verifyAdjVertices(IUT, V1,
makeSet(V1, V2));
verifyAdjVertices(IUT, V1,
makeSet(V1, V2));
verifyAdjVertices(IUT, V1,
makeSet(),
makeSet(V2));
verifyAdjVertices(IUT, V2,
makeSet(V1),
makeSet());
}
catch (Throwable t)
{
printGraph(t, IUT);
throw t;
}
}
/**
* A unit test for JUnit
*/
public void testDirParallelEdges()
throws Throwable
{
DirectedGraph IUT = makeDirParallelEdges();
try
{
verifyGraph(IUT, 2, 2);
verifyAdjVertices(IUT, V1,
makeSet(V1, V2));
verifyAdjVertices(IUT, V2,
makeSet(V1, V2));
verifyAdjVertices(IUT, V1,
makeSet(),
makeSet(V2));
verifyAdjVertices(IUT, V2,
makeSet(V1),
makeSet());
}
catch (Throwable t)
{
printGraph(t, IUT);
throw t;
}
}
/**
* A unit test for JUnit
*/
public void testTwoCycle()
throws Throwable
{
DirectedGraph IUT = makeTwoCycle();
try
{
verifyGraph(IUT, 2, 2);
verifyAdjVertices(IUT, V1,
makeSet(V1, V2));
verifyAdjVertices(IUT, V2,
makeSet(V1, V2));
verifyAdjVertices(IUT, V1,
makeSet(V2),
makeSet(V2));
verifyAdjVertices(IUT, V2,
makeSet(V1),
makeSet(V1));
}
catch (Throwable t)
{
printGraph(t, IUT);
throw t;
}
}
/**
* A unit test for JUnit
*/
public void testDirectedCycle()
throws Throwable
{
DirectedGraph IUT = makeDirectedCycle();
try
{
verifyGraph(IUT, 3, 3);
verifyAdjVertices(IUT, V1,
makeSet(V1, V2, V3));
verifyAdjVertices(IUT, V2,
makeSet(V1, V2, V3));
verifyAdjVertices(IUT, V3,
makeSet(V1, V2, V3));
verifyAdjVertices(IUT, V1,
makeSet(V3),
makeSet(V2));
verifyAdjVertices(IUT, V2,
makeSet(V1),
makeSet(V3));
verifyAdjVertices(IUT, V3,
makeSet(V2),
makeSet(V1));
}
catch (Throwable t)
{
printGraph(t, IUT);
throw t;
}
}
/**
* A unit test for JUnit
*/
public void testPipe()
throws Throwable
{
DirectedGraph IUT = makePipe();
try
{
verifyGraph(IUT, 3, 2);
verifyAdjVertices(IUT, V1,
makeSet(V1, V2));
verifyAdjVertices(IUT, V2,
makeSet(V1, V2, V3));
verifyAdjVertices(IUT, V3,
makeSet(V2, V3));
verifyAdjVertices(IUT, V1,
makeSet(),
makeSet(V2));
verifyAdjVertices(IUT, V2,
makeSet(V1),
makeSet(V3));
verifyAdjVertices(IUT, V3,
makeSet(V2),
makeSet());
}
catch (Throwable t)
{
printGraph(t, IUT);
throw t;
}
}
/**
* A unit test for JUnit
*/
public void testDiamond()
throws Throwable
{
DirectedGraph IUT = makeDiamond();
try
{
verifyGraph(IUT, 4, 4);
verifyAdjVertices(IUT, V1,
makeSet(V1, V2, V3));
verifyAdjVertices(IUT, V2,
makeSet(V1, V2, V4));
verifyAdjVertices(IUT, V3,
makeSet(V1, V3, V4));
verifyAdjVertices(IUT, V4,
makeSet(V2, V3, V4));
verifyAdjVertices(IUT, V1,
makeSet(),
makeSet(V2, V3));
verifyAdjVertices(IUT, V2,
makeSet(V1),
makeSet(V4));
verifyAdjVertices(IUT, V3,
makeSet(V1),
makeSet(V4));
verifyAdjVertices(IUT, V4,
makeSet(V2, V3),
makeSet());
}
catch (Throwable t)
{
printGraph(t, IUT);
throw t;
}
}
/**
* A unit test for JUnit
*/
public void testPipelessCycle()
throws Throwable
{
DirectedGraph IUT = makePipelessCycle();
try
{
verifyGraph(IUT, 4, 4);
verifyAdjVertices(IUT, V1,
makeSet(V1, V2, V3));
verifyAdjVertices(IUT, V2,
makeSet(V1, V2, V4));
verifyAdjVertices(IUT, V3,
makeSet(V1, V3, V4));
verifyAdjVertices(IUT, V4,
makeSet(V2, V3, V4));
verifyAdjVertices(IUT, V1,
makeSet(),
makeSet(V2, V3));
verifyAdjVertices(IUT, V2,
makeSet(V1, V4),
makeSet());
verifyAdjVertices(IUT, V3,
makeSet(V1, V4),
makeSet());
verifyAdjVertices(IUT, V4,
makeSet(),
makeSet(V2, V3));
}
catch (Throwable t)
{
printGraph(t, IUT);
throw t;
}
}
/**
* A unit test for JUnit
*/
public void testParentTree()
throws Throwable
{
DirectedGraph IUT = makeParentTree();
try
{
verifyGraph(IUT, 5, 4);
verifyAdjVertices(IUT, V1,
makeSet(V1, V2, V3));
verifyAdjVertices(IUT, V2,
makeSet(V1, V2));
verifyAdjVertices(IUT, V3,
makeSet(V1, V3, V4, V5));
verifyAdjVertices(IUT, V4,
makeSet(V3, V4));
verifyAdjVertices(IUT, V5,
makeSet(V3, V5));
verifyAdjVertices(IUT, V1,
makeSet(V2, V3),
makeSet());
verifyAdjVertices(IUT, V2,
makeSet(),
makeSet(V1));
verifyAdjVertices(IUT, V3,
makeSet(V4, V5),
makeSet(V1));
verifyAdjVertices(IUT, V4,
makeSet(),
makeSet(V3));
verifyAdjVertices(IUT, V5,
makeSet(),
makeSet(V3));
}
catch (Throwable t)
{
printGraph(t, IUT);
throw t;
}
}
/**
* A unit test for JUnit
*/
public void testChildTree()
throws Throwable
{
DirectedGraph IUT = makeChildTree();
try
{
verifyGraph(IUT, 5, 4);
verifyAdjVertices(IUT, V1,
makeSet(V1, V2, V3));
verifyAdjVertices(IUT, V2,
makeSet(V1, V2));
verifyAdjVertices(IUT, V3,
makeSet(V1, V3, V4, V5));
verifyAdjVertices(IUT, V4,
makeSet(V3, V4));
verifyAdjVertices(IUT, V5,
makeSet(V3, V5));
verifyAdjVertices(IUT, V1,
makeSet(),
makeSet(V2, V3));
verifyAdjVertices(IUT, V2,
makeSet(V1),
makeSet());
verifyAdjVertices(IUT, V3,
makeSet(V1),
makeSet(V4, V5));
verifyAdjVertices(IUT, V4,
makeSet(V3),
makeSet());
verifyAdjVertices(IUT, V5,
makeSet(V3),
makeSet());
}
catch (Throwable t)
{
printGraph(t, IUT);
throw t;
}
}
}
@@ -0,0 +1,952 @@
package org.apache.commons.graph;
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Commons" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* "Commons", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
/**
* GraphTest This is a superclass of other tests to provide some utilities in
* verifying graphs. This test will provide Undirected and Directed Graphs as
* well. We will implement the following graphs. Undirected Graphs
* ------------------- () No Vertex, No Edges @ One Vertex, No Edges @ @ Two
* Vertices, No Edges @-@ Two Vertices, One edge /-\ @ @ Two Vertices, Two Edges
* (Parallel Edges) \-/ @ / \ Three Vertices, Three Edges (Cycle) @---@ @--@--@
* Three Vertices, Two Edges (No Cycle) @ / \ @ @ 5 Vertices, 4 Edges (Tree) / \
* @ @ @-@ @-@ 4 Vertices, 2 Edges (Disconnected)
*/
import java.util.Set;
import java.util.Map;
import java.util.HashSet;
import java.util.HashMap;
import java.util.Iterator;
import junit.framework.*;
import org.apache.commons.graph.impl.*;
import org.apache.commons.graph.exception.*;
/**
* Description of the Class
*/
public class GraphTest extends TestCase
{
/**
* Description of the Class
*/
public class VertexImpl
implements Vertex
{
private String name = null;
/**
* Constructor for the VertexImpl object
*
* @param name
*/
public VertexImpl(String name)
{
this.name = name;
}
/**
* Description of the Method
*/
public String toString()
{
return name;
}
}
/**
* Description of the Class
*/
public class EdgeImpl
implements Edge
{
private Vertex start;
private Vertex end;
/**
* Constructor for the EdgeImpl object
*
* @param start
* @param end
*/
public EdgeImpl(Vertex start,
Vertex end)
{
this.start = start;
this.end = end;
}
/**
* Gets the otherVertex attribute of the EdgeImpl object
*/
public Vertex getOtherVertex(Vertex v)
{
if (v == start)
{
return end;
}
if (v == end)
{
return start;
}
return null;
}
/**
* Gets the vertices attribute of the EdgeImpl object
*/
public Set getVertices()
{
Set RC = new HashSet();
RC.add(start);
RC.add(end);
return RC;
}
/**
* Gets the source attribute of the EdgeImpl object
*/
public Vertex getSource()
{
return start;
}
/**
* Gets the target attribute of the EdgeImpl object
*/
public Vertex getTarget()
{
return end;
}
/**
* Description of the Method
*/
public String toString()
{
return start.toString() + " <-> " + end.toString();
}
}
/**
* Description of the Field
*/
public Vertex V1 = new VertexImpl("V1");
/**
* Description of the Field
*/
public Vertex V2 = new VertexImpl("V2");
/**
* Description of the Field
*/
public Vertex V3 = new VertexImpl("V3");
/**
* Description of the Field
*/
public Vertex V4 = new VertexImpl("V4");
/**
* Description of the Field
*/
public Vertex V5 = new VertexImpl("V5");
/**
* Description of the Field
*/
public EdgeImpl V1_V1 = new EdgeImpl(V1, V1);// For Self-Loops.
/**
* Description of the Field
*/
public EdgeImpl V1_V2 = new EdgeImpl(V1, V2);
/**
* Description of the Field
*/
public EdgeImpl V1_V2_ = new EdgeImpl(V1, V2);// For Parallel
/**
* Description of the Field
*/
public EdgeImpl V1_V2__ = new EdgeImpl(V1, V2);// For Parallel #2
/**
* Description of the Field
*/
public EdgeImpl V1_V3 = new EdgeImpl(V1, V3);
/**
* Description of the Field
*/
public EdgeImpl V1_V4 = new EdgeImpl(V1, V4);
/**
* Description of the Field
*/
public EdgeImpl V1_V5 = new EdgeImpl(V1, V5);
/**
* Description of the Field
*/
public EdgeImpl V2_V1 = new EdgeImpl(V2, V1);
/**
* Description of the Field
*/
public EdgeImpl V2_V3 = new EdgeImpl(V2, V3);
/**
* Description of the Field
*/
public EdgeImpl V2_V4 = new EdgeImpl(V2, V4);
/**
* Description of the Field
*/
public EdgeImpl V2_V5 = new EdgeImpl(V2, V5);
/**
* Description of the Field
*/
public EdgeImpl V3_V1 = new EdgeImpl(V3, V1);
/**
* Description of the Field
*/
public EdgeImpl V3_V2 = new EdgeImpl(V3, V2);
/**
* Description of the Field
*/
public EdgeImpl V3_V4 = new EdgeImpl(V3, V4);
/**
* Description of the Field
*/
public EdgeImpl V3_V5 = new EdgeImpl(V3, V5);
/**
* Description of the Field
*/
public EdgeImpl V4_V1 = new EdgeImpl(V4, V1);
/**
* Description of the Field
*/
public EdgeImpl V4_V2 = new EdgeImpl(V4, V2);
/**
* Description of the Field
*/
public EdgeImpl V4_V3 = new EdgeImpl(V4, V3);
/**
* Description of the Field
*/
public EdgeImpl V4_V5 = new EdgeImpl(V4, V5);
/**
* Description of the Field
*/
public EdgeImpl V5_V1 = new EdgeImpl(V5, V1);
/**
* Description of the Field
*/
public EdgeImpl V5_V2 = new EdgeImpl(V5, V2);
/**
* Description of the Field
*/
public EdgeImpl V5_V3 = new EdgeImpl(V5, V3);
/**
* Description of the Field
*/
public EdgeImpl V5_V4 = new EdgeImpl(V5, V4);
/**
* Constructor for the GraphTest object
*
* @param name
*/
public GraphTest(String name)
{
super(name);
this.testName = name;
}
private String testName = null;
/**
* Return this graph: ()
*/
public UndirectedGraph makeNullGraph()
throws GraphException
{
return new UndirectedGraphImpl();
}
/**
* Description of the Method
*/
public DirectedGraph makeDirNullGraph()
throws GraphException
{
return new DirectedGraphImpl();
}
/**
* Return this graph: v1
*/
public UndirectedGraph makeSingleVertex()
throws GraphException
{
UndirectedGraphImpl RC = new UndirectedGraphImpl();
RC.addVertex(V1);
return RC;
}
/**
* Description of the Method
*/
public DirectedGraph makeDirSingleVertex()
throws GraphException
{
DirectedGraphImpl RC = new DirectedGraphImpl();
RC.addVertex(V1);
return RC;
}
/**
* /--\ v1 | ^--/
*/
public DirectedGraph makeSelfLoop()
throws GraphException
{
DirectedGraphImpl RC = new DirectedGraphImpl();
RC.addVertex(V1);
RC.addEdge(V1_V1, V1, V1);
return RC;
}
/**
* v1 v2 Two Vertices, No Edges
*/
public UndirectedGraph makeDoubleVertex()
throws GraphException
{
UndirectedGraphImpl RC = new UndirectedGraphImpl();
RC.addVertex(V1);
RC.addVertex(V2);
return RC;
}
/**
* Description of the Method
*/
public DirectedGraph makeDirDoubleVertex()
throws GraphException
{
DirectedGraphImpl RC = new DirectedGraphImpl();
RC.addVertex(V1);
RC.addVertex(V2);
return RC;
}
/**
* v1-v2 Two Vertices, One edge
*/
public UndirectedGraph makeSingleEdge()
throws GraphException
{
UndirectedGraphImpl RC = new UndirectedGraphImpl();
RC.addVertex(V1);
RC.addVertex(V2);
RC.addEdge(V1_V2, V1_V2.getVertices());
return RC;
}
/**
* v1 -> v2 Directed Edge
*/
public DirectedGraph makeDirectedEdge()
throws GraphException
{
DirectedGraphImpl RC = new DirectedGraphImpl();
RC.addVertex(V1);
RC.addVertex(V2);
RC.addEdge(V1_V2,
V1, V2);
return RC;
}
/**
* /-\ v1 v2 Two Vertices, Two Edges (Parallel Edges) \-/
*/
public UndirectedGraph makeParallelEdges()
throws GraphException
{
UndirectedGraphImpl RC = new UndirectedGraphImpl();
RC.addVertex(V1);
RC.addVertex(V2);
RC.addEdge(V1_V2, V1_V2.getVertices());
RC.addEdge(V1_V2_, V1_V2_.getVertices());
return RC;
}
/**
* /--->\ @ @ \--->/
*/
public DirectedGraph makeDirParallelEdges()
throws GraphException
{
DirectedGraphImpl RC = new DirectedGraphImpl();
RC.addVertex(V1);
RC.addVertex(V2);
RC.addEdge(V1_V2, V1, V2);
// Second edge must be distinct. . .
RC.addEdge(V1_V2_, V1, V2);
return RC;
}
/**
* v1 / \ Three Vertices, Three Edges (Cycle) v2---v3
*/
public UndirectedGraph makeCycle()
throws GraphException
{
UndirectedGraphImpl RC = new UndirectedGraphImpl();
RC.addVertex(V1);
RC.addVertex(V2);
RC.addVertex(V3);
RC.addEdge(V1_V2, V1_V2.getVertices());
RC.addEdge(V2_V3, V2_V3.getVertices());
RC.addEdge(V3_V1, V3_V1.getVertices());
return RC;
}
/**
* /--->\ v1 v2 \<---/
*/
public DirectedGraph makeTwoCycle()
throws GraphException
{
DirectedGraphImpl RC = new DirectedGraphImpl();
RC.addVertex(V1);
RC.addVertex(V2);
RC.addEdge(V1_V2, V1, V2);
RC.addEdge(V2_V1, V2, V1);
return RC;
}
/**
* v1 / ^ v \ v2 ---> v3
*/
public DirectedGraph makeDirectedCycle()
throws GraphException
{
DirectedGraphImpl RC = new DirectedGraphImpl();
RC.addVertex(V1);
RC.addVertex(V2);
RC.addVertex(V3);
RC.addEdge(V1_V2, V1, V2);
RC.addEdge(V2_V3, V2, V3);
RC.addEdge(V3_V1, V3, V1);
return RC;
}
/**
* v1--v2--v3 Three Vertices, Two Edges (No Cycle)
*/
public UndirectedGraph makeNoCycle()
throws GraphException
{
UndirectedGraphImpl RC = new UndirectedGraphImpl();
RC.addVertex(V1);
RC.addVertex(V2);
RC.addVertex(V3);
RC.addEdge(V1_V2, V1_V2.getVertices());
RC.addEdge(V2_V3, V2_V3.getVertices());
return RC;
}
/**
* v1 --> v2 --> v3
*/
public DirectedGraph makePipe()
throws GraphException
{
DirectedGraphImpl RC = new DirectedGraphImpl();
RC.addVertex(V1);
RC.addVertex(V2);
RC.addVertex(V3);
RC.addEdge(V1_V2, V1, V2);
RC.addEdge(V2_V3, V2, V3);
return RC;
}
/**
* v1 / \ v v v2 v3 \ / v v v4
*/
public DirectedGraph makeDiamond()
throws GraphException
{
DirectedGraphImpl RC = new DirectedGraphImpl();
RC.addVertex(V1);
RC.addVertex(V2);
RC.addVertex(V3);
RC.addVertex(V4);
RC.addEdge(V1_V2, V1, V2);
RC.addEdge(V1_V3, V1, V3);
RC.addEdge(V2_V4, V2, V4);
RC.addEdge(V3_V4, V3, V4);
return RC;
}
/**
* v1 / \ v v v2 v3 ^ ^ \ / v4
*/
public DirectedGraph makePipelessCycle()
throws GraphException
{
DirectedGraphImpl RC = new DirectedGraphImpl();
RC.addVertex(V1);
RC.addVertex(V2);
RC.addVertex(V3);
RC.addVertex(V4);
RC.addEdge(V1_V2, V1, V2);
RC.addEdge(V1_V3, V1, V3);
RC.addEdge(V4_V2, V4, V2);
RC.addEdge(V4_V3, V4, V3);
return RC;
}
/**
* v1 / \ v2 v3 5 Vertices, 4 Edges (Tree) / \ v4 v5
*/
public UndirectedGraph makeTree()
throws GraphException
{
UndirectedGraphImpl RC = new UndirectedGraphImpl();
RC.addVertex(V1);
RC.addVertex(V2);
RC.addVertex(V3);
RC.addVertex(V4);
RC.addVertex(V5);
RC.addEdge(V1_V2, V1_V2.getVertices());
RC.addEdge(V1_V3, V1_V3.getVertices());
RC.addEdge(V3_V4, V3_V4.getVertices());
RC.addEdge(V3_V5, V3_V5.getVertices());
return RC;
}
/**
* Description of the Method
*/
public DirectedGraph makeParentTree()
throws GraphException
{
DirectedGraphImpl RC = new DirectedGraphImpl();
RC.addVertex(V1);
RC.addVertex(V2);
RC.addVertex(V3);
RC.addVertex(V4);
RC.addVertex(V5);
RC.addEdge(V2_V1, V2, V1);
RC.addEdge(V3_V1, V3, V1);
RC.addEdge(V4_V3, V4, V3);
RC.addEdge(V5_V3, V5, V3);
return RC;
}
/**
* Description of the Method
*/
public DirectedGraph makeChildTree()
throws GraphException
{
DirectedGraphImpl RC = new DirectedGraphImpl();
RC.addVertex(V1);
RC.addVertex(V2);
RC.addVertex(V3);
RC.addVertex(V4);
RC.addVertex(V5);
RC.addEdge(V1_V2, V1, V2);
RC.addEdge(V1_V3, V1, V3);
RC.addEdge(V3_V4, V3, V4);
RC.addEdge(V3_V5, V3, V5);
return RC;
}
/**
* v1-v2 v3-v4 4 Vertices, 2 Edges (Disconnected)
*/
public UndirectedGraph makeDisconnected()
throws GraphException
{
UndirectedGraphImpl RC = new UndirectedGraphImpl();
RC.addVertex(V1);
RC.addVertex(V2);
RC.addVertex(V3);
RC.addVertex(V4);
RC.addEdge(V1_V2, V1_V2.getVertices());
RC.addEdge(V3_V4, V3_V4.getVertices());
return RC;
}
/**
* A unit test for JUnit
*/
public void testNothing()
throws Throwable { }
/**
* Description of the Method
*/
public void verifyVertexEdgeCount(Graph IUT,
Vertex v,
int numEdge)
throws Throwable
{
assertEquals(v.toString() + " has wrong number of adjacent edges.",
IUT.getEdges(v).size(), numEdge);
}
/**
* Gets the outboundVertices attribute of the GraphTest object
*/
private Set getOutboundVertices(DirectedGraph IUT,
Vertex v)
{
Set RC = new HashSet();
Iterator edges = IUT.getOutbound(v).iterator();
while (edges.hasNext())
{
Edge e = (Edge) edges.next();
RC.add(IUT.getTarget(e));
}
return RC;
}
/**
* Gets the inboundVertices attribute of the GraphTest object
*/
private Set getInboundVertices(DirectedGraph IUT,
Vertex v)
{
Set RC = new HashSet();
Iterator edges = IUT.getInbound(v).iterator();
while (edges.hasNext())
{
Edge e = (Edge) edges.next();
RC.add(IUT.getSource(e));
}
return RC;
}
/**
* Gets the adjVertices attribute of the GraphTest object
*/
private Set getAdjVertices(Graph IUT,
Vertex v)
{
Set RC = new HashSet();
Iterator edges = IUT.getEdges(v).iterator();
while (edges.hasNext())
{
Edge e = (Edge) edges.next();
Set verts = IUT.getVertices(e);
RC.addAll(verts);
}
return RC;
}
/**
* Description of the Method
*/
public Set makeSet()
{
return new HashSet();
}
/**
* Description of the Method
*/
public Set makeSet(Vertex v)
{
Set RC = new HashSet();
RC.add(v);
return RC;
}
/**
* Description of the Method
*/
public Set makeSet(Vertex v1,
Vertex v2)
{
Set RC = makeSet(v1);
RC.add(v2);
return RC;
}
/**
* Description of the Method
*/
public Set makeSet(Set s1,
Set s2)
{
Set RC = new HashSet();
RC.addAll(s1);
RC.addAll(s2);
return RC;
}
/**
* Description of the Method
*/
public Set makeSet(Vertex v1,
Vertex v2,
Vertex v3)
{
return makeSet(makeSet(v1, v2),
makeSet(v3));
}
/**
* Description of the Method
*/
public Set makeSet(Vertex v1,
Vertex v2,
Vertex v3,
Vertex v4)
{
return makeSet(makeSet(v1, v2),
makeSet(v3, v4));
}
/**
* Description of the Method
*/
public void verifyAdjVertices(DirectedGraph IUT,
Vertex v,
Set inExpect,
Set outExpect)
{
Set inbound = getInboundVertices(IUT, v);
Set outbound = getOutboundVertices(IUT, v);
Iterator verts;
// inbound is a subset of inExpect
verts = inbound.iterator();
while (verts.hasNext())
{
Vertex curr = (Vertex) verts.next();
assertTrue(curr.toString() + " is not supposed to be " +
"next to " + v.toString(),
inExpect.contains(curr));
}
// inExpect is a subset of inbound
verts = inExpect.iterator();
while (verts.hasNext())
{
Vertex curr = (Vertex) verts.next();
assertTrue(curr.toString() + " is supposed to be next to " +
v.toString(),
inbound.contains(curr));
}
// outbound is a subset of outExpect
verts = outbound.iterator();
while (verts.hasNext())
{
Vertex curr = (Vertex) verts.next();
assertTrue(curr.toString() + " is not supposed to be " +
"next to " + v.toString(),
outExpect.contains(curr));
}
// outExpect is a subset of outbound
verts = outExpect.iterator();
while (verts.hasNext())
{
Vertex curr = (Vertex) verts.next();
assertTrue(curr.toString() + " is supposed to be next to " +
v.toString(),
outbound.contains(curr));
}
}
/**
* Description of the Method
*/
public void verifyAdjVertices(Graph IUT,
Vertex v,
Set expected)
throws Throwable
{
Set adjacent = getAdjVertices(IUT, v);
Iterator adjV = adjacent.iterator();
while (adjV.hasNext())
{
Vertex curr = (Vertex) adjV.next();
assertTrue(curr.toString() + " is not supposed to be " +
"next to " + v.toString(),
expected.contains(curr));
}
Iterator expect = expected.iterator();
while (expect.hasNext())
{
Vertex curr = (Vertex) expect.next();
assertTrue(curr.toString() + " is supposed to be next to " +
v.toString(),
adjacent.contains(curr));
}
}
/**
* Description of the Method
*/
public void verifyGraph(Graph g, int numVertex, int numEdge)
throws Throwable
{
assertEquals("Incorrect Number of Vertices.",
numVertex, g.getVertices().size());
assertEquals("Incorrect Number of Edges.",
numEdge, g.getEdges().size());
}
/**
* Description of the Method
*/
public void printGraph(Throwable t,
DirectedGraph IUT)
{
System.err.println(testName + ": " + t.toString());
System.err.println("VERTICES: " + IUT.getVertices());
System.err.println("EDGES: " + IUT.getEdges());
Iterator verts = IUT.getVertices().iterator();
while (verts.hasNext())
{
Vertex vert = (Vertex) verts.next();
System.err.println("[ " + vert + " ]");
Iterator inbounds = IUT.getInbound(vert).iterator();
while (inbounds.hasNext())
{
Edge inbound = (Edge) inbounds.next();
System.err.println("\tI [" + inbound + "]");
}
Iterator outbounds = IUT.getOutbound(vert).iterator();
while (outbounds.hasNext())
{
Edge outbound = (Edge) outbounds.next();
System.err.println("\tO [" + outbound + "]");
}
}
}
}
@@ -0,0 +1,379 @@
package org.apache.commons.graph;
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Commons" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* "Commons", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
/**
* GraphTest This test will ensure that we can indeed represent a graph. We will
* implement the following graphs. () No Vertex, No Edges @ One Vertex, No Edges
* @ @ Two Vertices, No Edges @-@ Two Vertices, One edge /-\ @ @ Two Vertices,
* Two Edges (Parallel Edges) \-/ @ / \ Three Vertices, Three Edges (Cycle)
* @---@ @--@--@ Three Vertices, Two Edges (No Cycle) @ / \ @ @ 5 Vertices, 4
* Edges (Tree) / \ @ @ @-@ @-@ 4 Vertices, 2 Edges (Disconnected)
*/
import java.util.Set;
import java.util.Map;
import java.util.HashSet;
import java.util.HashMap;
import java.util.Iterator;
import junit.framework.*;
/**
* Description of the Class
*/
public class UndirGraphTest extends GraphTest
{
/**
* Constructor for the UndirGraphTest object
*
* @param name
*/
public UndirGraphTest(String name)
{
super(name);
}
/**
* Test the NULL Graph.
*/
public void testNullGraph()
throws Throwable
{
verifyGraph(makeNullGraph(), 0, 0);
}
/**
* Test the Single Vertex.
*/
public void testSingleVertex()
throws Throwable
{
verifyGraph(makeSingleVertex(), 1, 0);
}
/**
* Tests Double Vertex graph.
*/
public void testDoubleVertex()
throws Throwable
{
verifyGraph(makeDoubleVertex(), 2, 0);
}
/**
* Test Single Edge Graph.
*/
public void testSingleEdge()
throws Throwable
{
Graph IUT = makeSingleEdge();
verifyGraph(IUT, 2, 1);
// Verify Edge from Vertex Count
verifyVertexEdgeCount(IUT, V1, 1);
verifyVertexEdgeCount(IUT, V2, 1);
Set expectV1 = new HashSet();
expectV1.add(V2);
verifyAdjVertices(IUT, V1, expectV1);
Set expectV2 = new HashSet();
expectV2.add(V1);
verifyAdjVertices(IUT, V2, expectV2);
}
/**
* Test Parallel Edges, make sure the representation is right.
*/
public void testParallelEdges()
throws Throwable
{
Graph IUT = makeParallelEdges();
verifyGraph(IUT, 2, 2);
// Verify Edge from Vertex Count
verifyVertexEdgeCount(IUT, V1, 2);
verifyVertexEdgeCount(IUT, V2, 2);
// Verify Adjacent Vertex
Set expectV1 = new HashSet();
Set expectV2 = new HashSet();
expectV1.add(V2);
expectV2.add(V1);
verifyAdjVertices(IUT, V1, expectV1);
verifyAdjVertices(IUT, V2, expectV2);
}
/**
* Test the Cycle Graph.
*/
public void testCycle()
throws Throwable
{
Graph IUT = makeCycle();
verifyGraph(IUT, 3, 3);
// Verify Edge from Vertex Count
verifyVertexEdgeCount(IUT, V1, 2);
verifyVertexEdgeCount(IUT, V2, 2);
verifyVertexEdgeCount(IUT, V3, 2);
// Verify Adjacent Vertex
Set expectV1 = new HashSet();
Set expectV2 = new HashSet();
Set expectV3 = new HashSet();
expectV1.add(V2);
expectV1.add(V3);
expectV2.add(V1);
expectV2.add(V3);
expectV3.add(V1);
expectV3.add(V2);
verifyAdjVertices(IUT, V1, expectV1);
verifyAdjVertices(IUT, V2, expectV2);
verifyAdjVertices(IUT, V3, expectV3);
}
/**
* Test the No Cycle Graph.
*/
public void testNoCycle()
throws Throwable
{
Graph IUT = makeNoCycle();
verifyGraph(IUT, 3, 2);
// Verify Edge from Vertex Count
verifyVertexEdgeCount(IUT, V1, 1);
verifyVertexEdgeCount(IUT, V2, 2);
verifyVertexEdgeCount(IUT, V3, 1);
// Verify Adjacent Vertex
Set expectV1 = new HashSet();
Set expectV2 = new HashSet();
Set expectV3 = new HashSet();
expectV1.add(V2);
expectV2.add(V1);
expectV2.add(V3);
expectV3.add(V2);
verifyAdjVertices(IUT, V1, expectV1);
verifyAdjVertices(IUT, V2, expectV2);
verifyAdjVertices(IUT, V3, expectV3);
}
/**
* Test the Tree Graph.
*/
public void testTree()
throws Throwable
{
Graph IUT = makeTree();
verifyGraph(IUT, 5, 4);
// Verify Edge from Vertex Count
verifyVertexEdgeCount(IUT, V1, 2);
verifyVertexEdgeCount(IUT, V2, 1);
verifyVertexEdgeCount(IUT, V3, 3);
verifyVertexEdgeCount(IUT, V4, 1);
verifyVertexEdgeCount(IUT, V5, 1);
// Verify Adjacent Vertex
Set expectV1 = new HashSet();
Set expectV2 = new HashSet();
Set expectV3 = new HashSet();
Set expectV4 = new HashSet();
Set expectV5 = new HashSet();
expectV1.add(V2);
expectV1.add(V3);
expectV2.add(V1);
expectV3.add(V1);
expectV3.add(V4);
expectV3.add(V5);
expectV4.add(V3);
expectV5.add(V3);
verifyAdjVertices(IUT, V1, expectV1);
verifyAdjVertices(IUT, V2, expectV2);
verifyAdjVertices(IUT, V3, expectV3);
verifyAdjVertices(IUT, V4, expectV4);
verifyAdjVertices(IUT, V5, expectV5);
}
/**
* Test the Disconnected Graph.
*/
public void testDisconnected()
throws Throwable
{
Graph IUT = makeDisconnected();
verifyGraph(IUT, 4, 2);
// Verify Edge from Vertex Count
verifyVertexEdgeCount(IUT, V1, 1);
verifyVertexEdgeCount(IUT, V2, 1);
verifyVertexEdgeCount(IUT, V3, 1);
verifyVertexEdgeCount(IUT, V4, 1);
// Verify Adjacent Vertex
Set expectV1 = new HashSet();
Set expectV2 = new HashSet();
Set expectV3 = new HashSet();
Set expectV4 = new HashSet();
expectV1.add(V2);
expectV2.add(V1);
expectV3.add(V4);
expectV4.add(V3);
verifyAdjVertices(IUT, V1, expectV1);
verifyAdjVertices(IUT, V2, expectV2);
verifyAdjVertices(IUT, V3, expectV3);
verifyAdjVertices(IUT, V4, expectV4);
}
/**
* Description of the Method
*/
public void verifyVertexEdgeCount(Graph IUT,
Vertex v,
int numEdge)
throws Throwable
{
assertEquals(v.toString() + " has wrong number of adjacent edges.",
IUT.getEdges(v).size(), numEdge);
}
/**
* Gets the adjVertices attribute of the UndirGraphTest object
*/
private Set getAdjVertices(Graph IUT,
Vertex v)
{
Set RC = new HashSet();
Iterator edges = IUT.getEdges(v).iterator();
while (edges.hasNext())
{
Edge e = (Edge) edges.next();
Set verts = IUT.getVertices(e);
verts.remove(v);
RC.addAll(verts);
}
return RC;
}
/**
* Description of the Method
*/
public void verifyAdjVertices(Graph IUT,
Vertex v,
Set expected)
throws Throwable
{
Set adjacent = getAdjVertices(IUT, v);
Iterator adjV = adjacent.iterator();
while (adjV.hasNext())
{
Vertex curr = (Vertex) adjV.next();
assertTrue(curr.toString() + " is not supposed to be " +
"next to " + v.toString(),
expected.contains(curr));
}
Iterator expect = expected.iterator();
while (expect.hasNext())
{
Vertex curr = (Vertex) expect.next();
assertTrue(curr.toString() + " is supposed to be next to " +
v.toString(),
adjacent.contains(curr));
}
}
/**
* Description of the Method
*/
public void verifyGraph(Graph g, int numVertex, int numEdge)
throws Throwable
{
assertEquals("Incorrect Number of Vertices.",
g.getVertices().size(), numVertex);
assertEquals("Incorrect Number of Edges.",
g.getEdges().size(), numEdge);
}
}
@@ -0,0 +1,567 @@
package org.apache.commons.graph;
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Commons" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* "Commons", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
/**
* WeightedGraphTest This class will test Weighted Graphs, and make sure they
* are possible.
*/
import org.apache.commons.graph.impl.*;
import org.apache.commons.graph.exception.*;
/**
* Description of the Class
*/
public class WeightedGraphTest
extends DirGraphTest
{
/**
* Constructor for the WeightedGraphTest object
*
* @param name
*/
public WeightedGraphTest(String name)
{
super(name);
}
/**
* 5.0
*
* @---------> @
*/
public DirectedGraphImpl makeWDirectedEdge()
throws GraphException
{
DirectedGraphImpl RC =
(DirectedGraphImpl) makeDirectedEdge();
RC.setWeight(V1_V2, 5.0);
return RC;
}
/**
* A unit test for JUnit
*/
public void testWDirectedEdge()
throws Throwable
{
DirectedGraphImpl IUT = makeWDirectedEdge();
verifyGraph(IUT, 2, 1);
assertEquals("Wrong Weight on V1->V2",
5.0, IUT.getWeight(V1_V2), 0.00001);
}
/**
* /----\ / 5.0 \ @ | \ / \----/
*/
public DirectedGraphImpl makeWSelfLoop()
throws GraphException
{
DirectedGraphImpl RC =
(DirectedGraphImpl) makeSelfLoop();
RC.setWeight(V1_V1, 5.0);
return RC;
}
/**
* A unit test for JUnit
*/
public void testWSelfLoop()
throws Throwable
{
DirectedGraphImpl IUT = makeWSelfLoop();
verifyGraph(IUT, 1, 1);
assertEquals("Wrong Weight on V1->V1",
5.0, IUT.getWeight(V1_V1), 0.00001);
}
/**
* v1 / ^ 2.0 / \ 1.5 v \ v2------->v3 4.0
*/
public DirectedGraphImpl makePositiveCycle()
throws GraphException
{
DirectedGraphImpl RC =
(DirectedGraphImpl) makeDirectedCycle();
RC.setWeight(V1_V2, 2.0);
RC.setWeight(V2_V3, 4.0);
RC.setWeight(V3_V1, 1.5);
return RC;
}
/**
* A unit test for JUnit
*/
public void testPositiveCycle()
throws Throwable
{
DirectedGraphImpl IUT = makePositiveCycle();
verifyGraph(IUT, 3, 3);
assertEquals("Wrong Weight on V1->V2",
IUT.getWeight(V1_V2), 2.0, 0.00001);
assertEquals("Wrong Weight on V2->V3",
IUT.getWeight(V2_V3), 4.0, 0.00001);
assertEquals("Wrong Weight on V1->V2",
IUT.getWeight(V3_V1), 1.5, 0.00001);
}
/**
* v1 / ^ 2.0 / \ - 1.5 v \ v2------->v3 4.0
*/
public DirectedGraphImpl makePositivePartNegCycle()
throws GraphException
{
DirectedGraphImpl RC =
(DirectedGraphImpl) makeDirectedCycle();
RC.setWeight(V1_V2, 2.0);
RC.setWeight(V2_V3, 4.0);
RC.setWeight(V3_V1, -1.5);
return RC;
}
/**
* A unit test for JUnit
*/
public void testPositivePartNegCycle()
throws Throwable
{
DirectedGraphImpl IUT = makePositivePartNegCycle();
verifyGraph(IUT, 3, 3);
assertEquals("Wrong Weight on V1->V2",
IUT.getWeight(V1_V2), 2.0, 0.00001);
assertEquals("Wrong Weight on V2->V3",
IUT.getWeight(V2_V3), 4.0, 0.00001);
assertEquals("Wrong Weight on V1->V2",
IUT.getWeight(V3_V1), -1.5, 0.00001);
}
/**
* v1 / ^ - 2.0 / \ - 1.5 v \ v2------->v3 - 4.0
*/
public DirectedGraphImpl makeNegativeCycle()
throws GraphException
{
DirectedGraphImpl RC =
(DirectedGraphImpl) makeDirectedCycle();
RC.setWeight(V1_V2, -2.0);
RC.setWeight(V2_V3, -4.0);
RC.setWeight(V3_V1, -1.5);
return RC;
}
/**
* A unit test for JUnit
*/
public void testNegativeCycle()
throws Throwable
{
DirectedGraphImpl IUT = makeNegativeCycle();
verifyGraph(IUT, 3, 3);
assertEquals("Wrong Weight on V1->V2",
IUT.getWeight(V1_V2), -2.0, 0.00001);
assertEquals("Wrong Weight on V2->V3",
IUT.getWeight(V2_V3), -4.0, 0.00001);
assertEquals("Wrong Weight on V1->V2",
IUT.getWeight(V3_V1), -1.5, 0.00001);
}
/**
* v1 / ^ - 2.0 / \ 1.5 v \ v2------->v3 - 4.0
*/
public DirectedGraphImpl makeNegativePartPosCycle()
throws GraphException
{
DirectedGraphImpl RC =
(DirectedGraphImpl) makeDirectedCycle();
RC.setWeight(V1_V2, -2.0);
RC.setWeight(V2_V3, -4.0);
RC.setWeight(V3_V1, 1.5);
return RC;
}
/**
* A unit test for JUnit
*/
public void testNegativePartPosCycle()
throws Throwable
{
DirectedGraphImpl IUT = makeNegativePartPosCycle();
verifyGraph(IUT, 3, 3);
assertEquals("Wrong Weight on V1->V2",
IUT.getWeight(V1_V2), -2.0, 0.00001);
assertEquals("Wrong Weight on V2->V3",
IUT.getWeight(V2_V3), -4.0, 0.00001);
assertEquals("Wrong Weight on V1->V2",
IUT.getWeight(V3_V1), 1.5, 0.00001);
}
/**
* 1.5 3.5 v1 ---> v2 --->v3
*/
public DirectedGraphImpl makePositivePipe()
throws GraphException
{
DirectedGraphImpl RC =
(DirectedGraphImpl) makePipe();
RC.setWeight(V1_V2, 1.5);
RC.setWeight(V2_V3, 3.5);
return RC;
}
/**
* A unit test for JUnit
*/
public void testPositivePipe()
throws Throwable
{
DirectedGraphImpl IUT = makePositivePipe();
verifyGraph(IUT, 3, 2);
assertEquals("Wrong Weight on V1->V2",
IUT.getWeight(V1_V2), 1.5, 0.00001);
assertEquals("Wrong Weight on V2->V3",
IUT.getWeight(V2_V3), 3.5, 0.00001);
}
/**
* -1.5 3.5 v1 ---> v2 --->v3
*/
public DirectedGraphImpl makePositivePartNegPipe()
throws GraphException
{
DirectedGraphImpl RC =
(DirectedGraphImpl) makePipe();
RC.setWeight(V1_V2, -1.5);
RC.setWeight(V2_V3, 3.5);
return RC;
}
/**
* A unit test for JUnit
*/
public void testPositivePartNegPipe()
throws Throwable
{
DirectedGraphImpl IUT = makePositivePartNegPipe();
verifyGraph(IUT, 3, 2);
assertEquals("Wrong Weight on V1->V2",
IUT.getWeight(V1_V2), -1.5, 0.00001);
assertEquals("Wrong Weight on V2->V3",
IUT.getWeight(V2_V3), 3.5, 0.00001);
}
/**
* -1.5 -3.5 v1 ---> v2 --->v3
*/
public DirectedGraphImpl makeNegativePipe()
throws GraphException
{
DirectedGraphImpl RC =
(DirectedGraphImpl) makePipe();
RC.setWeight(V1_V2, -1.5);
RC.setWeight(V2_V3, -3.5);
return RC;
}
/**
* A unit test for JUnit
*/
public void testNegativePipe()
throws Throwable
{
DirectedGraphImpl IUT = makeNegativePipe();
verifyGraph(IUT, 3, 2);
assertEquals("Wrong Weight on V1->V2",
IUT.getWeight(V1_V2), -1.5, 0.0001);
assertEquals("Wrong Weight on V2->V3",
IUT.getWeight(V2_V3), -3.5, 0.0001);
}
/**
* 1.5 -3.5 v1 ---> v2 --->v3
*/
public DirectedGraphImpl makeNegativePartPosPipe()
throws GraphException
{
DirectedGraphImpl RC =
(DirectedGraphImpl) makePipe();
RC.setWeight(V1_V2, 1.5);
RC.setWeight(V2_V3, -3.5);
return RC;
}
/**
* A unit test for JUnit
*/
public void testNegativePartPosPipe()
throws Throwable
{
DirectedGraphImpl IUT = makeNegativePartPosPipe();
verifyGraph(IUT, 3, 2);
assertEquals("Wrong Weight on V1->V2",
IUT.getWeight(V1_V2), 1.5, 0.0001);
assertEquals("Wrong Weight on V2->V3",
IUT.getWeight(V2_V3), -3.5, 0.0001);
}
/**
* v1 1.5 / \ 2.5 v v v2 v3 1.5 \ / 2.5 vv v4
*/
public DirectedGraphImpl makeMultiplePathL()
throws GraphException
{
DirectedGraphImpl RC =
(DirectedGraphImpl) makeDiamond();
RC.setWeight(V1_V2, 1.5);
RC.setWeight(V2_V4, 1.5);
RC.setWeight(V1_V3, 2.5);
RC.setWeight(V3_V4, 2.5);
return RC;
}
/**
* A unit test for JUnit
*/
public void testMultiplePathL()
throws Throwable
{
DirectedGraphImpl IUT = makeMultiplePathL();
verifyGraph(IUT, 4, 4);
assertEquals("Wrong Weight on V1->V2",
IUT.getWeight(V1_V2), 1.5, 0.0001);
assertEquals("Wrong Weight on V2->V4",
IUT.getWeight(V2_V4), 1.5, 0.0001);
assertEquals("Wrong Weight on V1->V3",
IUT.getWeight(V1_V3), 2.5, 0.0001);
assertEquals("Wrong Weight on V3->V4",
IUT.getWeight(V3_V4), 2.5, 0.0001);
}
/**
* v1 2.5 / \ 1.5 v v v2 v3 2.5 \ / 1.5 vv v4
*/
public DirectedGraphImpl makeMultiplePathR()
throws GraphException
{
DirectedGraphImpl RC =
(DirectedGraphImpl) makeDiamond();
RC.setWeight(V1_V2, 2.5);
RC.setWeight(V2_V4, 2.5);
RC.setWeight(V1_V3, 1.5);
RC.setWeight(V3_V4, 1.5);
return RC;
}
/**
* A unit test for JUnit
*/
public void testMultiplePathR()
throws Throwable
{
DirectedGraphImpl IUT = makeMultiplePathR();
verifyGraph(IUT, 4, 4);
assertEquals("Wrong Weight on V1->V2",
IUT.getWeight(V1_V2), 2.5, 0.0001);
assertEquals("Wrong Weight on V2->V4",
IUT.getWeight(V2_V4), 2.5, 0.0001);
assertEquals("Wrong Weight on V1->V3",
IUT.getWeight(V1_V3), 1.5, 0.0001);
assertEquals("Wrong Weight on V3->V4",
IUT.getWeight(V3_V4), 1.5, 0.0001);
}
/**
* v1 10.0 / \ 0.5 v v v2 v3 10.0 \ / 10.5 vv v4
*/
public DirectedGraphImpl makeMultiplePathEarlyLow()
throws GraphException
{
DirectedGraphImpl RC =
(DirectedGraphImpl) makeDiamond();
RC.setWeight(V1_V2, 10.0);
RC.setWeight(V2_V4, 10.0);
RC.setWeight(V1_V3, 0.5);
RC.setWeight(V3_V4, 10.5);
return RC;
}
/**
* A unit test for JUnit
*/
public void testMultiplePathEarlyLow()
throws Throwable
{
DirectedGraphImpl IUT = makeMultiplePathEarlyLow();
verifyGraph(IUT, 4, 4);
assertEquals("Wrong Weight on V1->V2",
IUT.getWeight(V1_V2), 10.0, 0.0001);
assertEquals("Wrong Weight on V2->V4",
IUT.getWeight(V2_V4), 10.0, 0.0001);
assertEquals("Wrong Weight on V1->V3",
IUT.getWeight(V1_V3), 0.5, 0.0001);
assertEquals("Wrong Weight on V3->V4",
IUT.getWeight(V3_V4), 10.5, 0.0001);
}
/**
* v1 10.0 / \ 10.5 v v v2 v3 10.0 \ / 0.5 vv v4
*/
public DirectedGraphImpl makeMultiplePathEarlyHigh()
throws GraphException
{
DirectedGraphImpl RC =
(DirectedGraphImpl) makeDiamond();
RC.setWeight(V1_V2, 10.0);
RC.setWeight(V2_V4, 10.0);
RC.setWeight(V1_V3, 10.5);
RC.setWeight(V3_V4, 0.5);
return RC;
}
/**
* A unit test for JUnit
*/
public void testMultiplePathEarlyHigh()
throws Throwable
{
DirectedGraphImpl IUT = makeMultiplePathEarlyHigh();
verifyGraph(IUT, 4, 4);
assertEquals("Wrong Weight on V1->V2",
IUT.getWeight(V1_V2), 10.0, 0.0001);
assertEquals("Wrong Weight on V2->V4",
IUT.getWeight(V2_V4), 10.0, 0.0001);
assertEquals("Wrong Weight on V1->V3",
IUT.getWeight(V1_V3), 10.5, 0.0001);
assertEquals("Wrong Weight on V3->V4",
IUT.getWeight(V3_V4), 0.5, 0.0001);
}
}
@@ -0,0 +1,461 @@
package org.apache.commons.graph.contract;
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Commons" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* "Commons", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
import org.apache.commons.graph.*;
import org.apache.commons.graph.exception.*;
/**
* Description of the Class
*/
public class AcyclicContractTest
extends GraphTest
{
/**
* Constructor for the AcyclicContractTest object
*
* @param name
*/
public AcyclicContractTest(String name)
{
super(name);
}
/**
* A unit test for JUnit
*/
public void testDirNullGraph()
throws Throwable
{
AcyclicContract IUT =
new AcyclicContract();
IUT.setImpl(makeDirNullGraph());
IUT.verify();
}
/**
* A unit test for JUnit
*/
public void testDirSingleVertex()
throws Throwable
{
AcyclicContract IUT =
new AcyclicContract();
IUT.setImpl(makeDirSingleVertex());
IUT.verify();
try
{
IUT.addEdge(V1_V1, V1, V1);
fail("No GraphException thrown when Self-Cycle introduced.");
}
catch (CycleException ex)
{}
}
/**
* A unit test for JUnit
*/
public void testSelfLoop()
throws Throwable
{
AcyclicContract IUT =
new AcyclicContract();
IUT.setImpl(makeSelfLoop());
try
{
IUT.verify();
fail("No CycleException thrown on Verification.");
}
catch (CycleException ex)
{}
}
/**
* A unit test for JUnit
*/
public void testDirDoubleVertex()
throws Throwable
{
AcyclicContract IUT =
new AcyclicContract();
IUT.setImpl(makeDirDoubleVertex());
IUT.verify();
try
{
IUT.addEdge(V1_V1, V1, V1);
fail("No GraphException thrown when Self-Cycle introduced.");
}
catch (CycleException ex)
{}
try
{
IUT.addEdge(V1_V2, V1, V2);
}
catch (GraphException ex)
{
fail("Contract prevented adding of valid edge. V1->V2");
}
}
/**
* A unit test for JUnit
*/
public void testDirectedEdge()
throws Throwable
{
AcyclicContract IUT =
new AcyclicContract();
IUT.setImpl(makeDirectedEdge());
IUT.verify();
try
{
IUT.addEdge(V1_V1, V1, V1);
fail("No GraphException thrown when Self-Cycle introduced.");
}
catch (CycleException ex)
{}
try
{
IUT.addEdge(V1_V2_, V1, V2);
}
catch (GraphException ex)
{
fail("Contract prevented adding of valid edge. V1->V2'");
}
try
{
IUT.addEdge(V2_V1, V2, V1);
fail("Contract allowed cycle to be introduced.");
}
catch (CycleException ex)
{}
}
/**
* A unit test for JUnit
*/
public void testDirParallelEdges()
throws Throwable
{
AcyclicContract IUT =
new AcyclicContract();
IUT.setImpl(makeDirParallelEdges());
IUT.verify();
try
{
IUT.addEdge(V1_V1, V1, V1);
fail("No GraphException thrown when Self-Cycle introduced.");
}
catch (CycleException ex)
{}
try
{
IUT.addEdge(V1_V2__, V1, V2);
}
catch (GraphException ex)
{
fail("Contract prevented adding of valid edge. V1->V2'");
}
try
{
IUT.addEdge(V2_V1, V2, V1);
fail("Contract allowed cycle to be introduced.");
}
catch (CycleException ex)
{}
}
/**
* A unit test for JUnit
*/
public void testTwoCycle()
throws Throwable
{
AcyclicContract IUT =
new AcyclicContract();
IUT.setImpl(makeTwoCycle());
try
{
IUT.verify();
fail("No CycleException thrown on Verification.");
}
catch (CycleException ex)
{}
}
/**
* A unit test for JUnit
*/
public void testDirectedCycle()
throws Throwable
{
AcyclicContract IUT =
new AcyclicContract();
IUT.setImpl(makeDirectedCycle());
try
{
IUT.verify();
fail("No CycleException thrown on Verification.");
}
catch (CycleException ex)
{}
}
/**
* A unit test for JUnit
*/
public void testPipe()
throws Throwable
{
AcyclicContract IUT =
new AcyclicContract();
IUT.setImpl(makePipe());
IUT.verify();
try
{
IUT.addEdge(V1_V1, V1, V1);
fail("No GraphException thrown when Self-Cycle introduced.");
}
catch (CycleException ex)
{}
try
{
IUT.addEdge(V1_V2_, V1, V2);
}
catch (GraphException ex)
{
fail("Contract prevented adding of valid edge. V1->V2'");
}
try
{
IUT.addEdge(V3_V1, V3, V1);
fail("Contract allowed cycle to be introduced.");
}
catch (CycleException ex)
{}
}
/**
* A unit test for JUnit
*/
public void testDiamond()
throws Throwable
{
AcyclicContract IUT =
new AcyclicContract();
IUT.setImpl(makeDiamond());
IUT.verify();
try
{
IUT.addEdge(V1_V1, V1, V1);
fail("No GraphException thrown when Self-Cycle introduced.");
}
catch (CycleException ex)
{}
try
{
IUT.addEdge(V2_V3, V2, V3);
}
catch (GraphException ex)
{
fail("Contract prevented adding of valid edge. V2->V3");
}
try
{
IUT.addEdge(V4_V1, V4, V1);
fail("Contract allowed cycle to be introduced.");
}
catch (CycleException ex)
{}
}
/**
* A unit test for JUnit
*/
public void testPipelessCycle()
throws Throwable
{
AcyclicContract IUT =
new AcyclicContract();
IUT.setImpl(makePipelessCycle());
IUT.verify();
try
{
IUT.addEdge(V1_V1, V1, V1);
fail("No GraphException thrown when Self-Cycle introduced.");
}
catch (CycleException ex)
{}
try
{
IUT.addEdge(V2_V3, V2, V3);
}
catch (GraphException ex)
{
fail("Contract prevented adding of valid edge. V2->V3");
}
try
{
IUT.addEdge(V3_V4, V3, V4);
fail("Contract allowed cycle to be introduced.");
}
catch (CycleException ex)
{}
}
/**
* A unit test for JUnit
*/
public void testParentTree()
throws Throwable
{
System.err.println("---- PARENT TREE ----");
AcyclicContract IUT =
new AcyclicContract();
IUT.setImpl(makeParentTree());
IUT.verify();
try
{
IUT.addEdge(V1_V1, V1, V1);
fail("No GraphException thrown when Self-Cycle introduced.");
}
catch (CycleException ex)
{}
try
{
IUT.addEdge(V2_V3, V2, V3);
}
catch (GraphException ex)
{
fail("Contract prevented adding of valid edge. V2->V3");
}
try
{
IUT.addEdge(V1_V5, V1, V5);
fail("Contract allowed cycle to be introduced.");
}
catch (CycleException ex)
{}
}
/**
* A unit test for JUnit
*/
public void testChildTree()
throws Throwable
{
AcyclicContract IUT =
new AcyclicContract();
IUT.setImpl(makeChildTree());
IUT.verify();
try
{
IUT.addEdge(V1_V1, V1, V1);
fail("No GraphException thrown when Self-Cycle introduced.");
}
catch (CycleException ex)
{}
try
{
IUT.addEdge(V2_V3, V2, V3);
}
catch (GraphException ex)
{
fail("Contract prevented adding of valid edge. V2->V3");
}
try
{
IUT.addEdge(V5_V1, V5, V1);
fail("Contract allowed cycle to be introduced.");
}
catch (CycleException ex)
{}
}
}
@@ -0,0 +1,275 @@
package org.apache.commons.graph.contract;
/**
* DAGTest This test looks to verify that yes indeed contracts are being called
* when created through the GraphFactory.
*/
import org.apache.commons.graph.*;
import org.apache.commons.graph.impl.*;
import org.apache.commons.graph.contract.*;
import org.apache.commons.graph.exception.*;
/**
* Description of the Class
*/
public class DAGTest
extends GraphTest
{
private Contract[] dagContracts = new Contract[1];
private GraphFactory factory = new GraphFactory();
private String testName = null;
/**
* Constructor for the DAGTest object
*
* @param name
*/
public DAGTest(String name)
{
super(name);
this.testName = name;
}
/**
* The JUnit setup method
*/
public void setUp()
{
dagContracts[0] = new AcyclicContract();
}
/**
* A unit test for JUnit
*/
public void testDAGSelfLoop()
throws Throwable
{
DirectedGraph dg = null;
try
{
try
{
dg = factory.makeDirectedGraph(dagContracts,
true,
makeSelfLoop());
fail("Should not have created DAG.");
}
catch (CycleException ex)
{}
}
catch (Throwable ex)
{
printGraph(ex, dg);
throw ex;
}
}
/**
* A unit test for JUnit
*/
public void testDAGTwoLoop()
throws Throwable
{
DirectedGraph dg = null;
try
{
try
{
dg = factory.makeDirectedGraph(dagContracts,
true,
makeTwoCycle());
fail("Should not have created DAG.");
}
catch (CycleException ex)
{}
}
catch (Throwable ex)
{
printGraph(ex, dg);
throw ex;
}
}
/**
* A unit test for JUnit
*/
public void testMakeDAGDirCycle()
throws Throwable
{
MutableDirectedGraph mdg = null;
try
{
mdg = factory.makeMutableDirectedGraph(dagContracts,
true,
null);
mdg.addVertex(V1);
mdg.addVertex(V2);
mdg.addEdge(V1_V2, V1, V2);
mdg.addVertex(V3);
mdg.addEdge(V2_V3, V2, V3);
try
{
mdg.addEdge(V3_V1, V3, V1);
fail("No CycleException thrown on introduction of cycle.");
}
catch (CycleException ex)
{}
}
catch (Throwable t)
{
printGraph(t, mdg);
}
}
/**
* A unit test for JUnit
*/
public void testDAGDirCycle()
throws Throwable
{
DirectedGraph dg = null;
try
{
try
{
dg = factory.makeDirectedGraph(dagContracts,
true,
makeDirectedCycle());
fail("Should not have created DAG.");
}
catch (CycleException ex)
{}
}
catch (Throwable ex)
{
printGraph(ex, dg);
throw ex;
}
}
/**
* A unit test for JUnit
*/
public void testDAGAddCycleToPipe()
throws Throwable
{
MutableDirectedGraph mdg = null;
try
{
try
{
mdg = factory.makeMutableDirectedGraph(dagContracts,
true,
makePipe());
mdg.addEdge(V3_V1, V3, V1);
fail("No Exception thrown on adding of invalid edge.");
}
catch (CycleException e)
{}
}
catch (Throwable ex)
{
printGraph(ex, mdg);
throw ex;
}
}
/**
* A unit test for JUnit
*/
public void testDAGAddCycleToDirEdge()
throws Throwable
{
MutableDirectedGraph mdg = null;
try
{
try
{
mdg = factory.makeMutableDirectedGraph(dagContracts,
true,
makeDirectedEdge());
mdg.addEdge(V2_V1, V2, V1);
fail("Failed to throw exception on introducing Cycle.");
}
catch (CycleException ex)
{}
}
catch (Throwable ex)
{
printGraph(ex, mdg);
throw ex;
}
}
/**
* A unit test for JUnit
*/
public void testDAGAddSelfLoop()
throws Throwable
{
MutableDirectedGraph mdg = null;
try
{
try
{
mdg = factory.makeMutableDirectedGraph(dagContracts,
true,
makeDirSingleVertex());
mdg.addEdge(V1_V1, V1, V1);
fail("Failed to throw exception on introducing Self Loop.");
}
catch (CycleException ex)
{}
}
catch (Throwable ex)
{
printGraph(ex, mdg);
throw ex;
}
}
/**
* A unit test for JUnit
*/
public void testDAGValidEdge()
throws Throwable
{
MutableDirectedGraph mdg = null;
try
{
mdg = factory.makeMutableDirectedGraph(dagContracts,
true,
makeParentTree());
mdg.addEdge(V2_V3, V2, V3);
}
catch (Throwable ex)
{
printGraph(ex, mdg);
throw ex;
}
}
/**
* A unit test for JUnit
*/
public void testDAGValidEdge2()
throws Throwable
{
MutableDirectedGraph mdg = null;
try
{
mdg = factory.makeMutableDirectedGraph(dagContracts,
true,
makeDirDoubleVertex());
mdg.addEdge(V1_V2, V1, V2);
}
catch (Throwable ex)
{
printGraph(ex, mdg);
throw ex;
}
}
}
@@ -0,0 +1,21 @@
package org.apache.commons.graph.decorator;
import org.apache.commons.graph.*;
/**
* Description of the Class
*/
public class ShortestPathTest
extends WeightedGraphTest
{
/**
* Constructor for the ShortestPathTest object
*
* @param name
*/
public ShortestPathTest(String name)
{
super(name);
}
}
@@ -0,0 +1,122 @@
package org.apache.commons.graph.decorator;
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Commons" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* "Commons", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
import java.util.Set;
import java.util.Map;
import java.util.HashSet;
import java.util.HashMap;
import java.util.Iterator;
import org.apache.commons.graph.*;
/**
* Description of the Class
*/
public class TransposeTest
extends GraphTest
{
/**
* Constructor for the TransposeTest object
*
* @param name
*/
public TransposeTest(String name)
{
super(name);
}
/**
* A unit test for JUnit
*/
public void testParentTree()
throws Throwable
{
DDirectedGraph graph =
DDirectedGraph.decorateGraph(makeParentTree());
DirectedGraph IUT = graph.transpose();
// Copied from DirGraphTest.testChildTree
verifyGraph(IUT, 5, 4);
verifyAdjVertices(IUT, V1,
makeSet(V1, V2, V3));
verifyAdjVertices(IUT, V2,
makeSet(V1, V2));
verifyAdjVertices(IUT, V3,
makeSet(V1, V3, V4, V5));
verifyAdjVertices(IUT, V4,
makeSet(V3, V4));
verifyAdjVertices(IUT, V5,
makeSet(V3, V5));
verifyAdjVertices(IUT, V1,
makeSet(),
makeSet(V2, V3));
verifyAdjVertices(IUT, V2,
makeSet(V1),
makeSet());
verifyAdjVertices(IUT, V3,
makeSet(V1),
makeSet(V4, V5));
verifyAdjVertices(IUT, V4,
makeSet(V3),
makeSet());
verifyAdjVertices(IUT, V5,
makeSet(V3),
makeSet());
}
}
@@ -0,0 +1,269 @@
package org.apache.commons.graph.dependency;
import java.util.Set;
import java.util.List;
import java.util.HashSet;
import org.apache.commons.graph.*;
import org.apache.commons.graph.dependency.exception.*;
/**
* Description of the Class
*/
public class DependencyTest
extends GraphTest
{
private DependencyGraph IUT = null;
/**
* Constructor for the DependencyTest object
*
* @param name
*/
public DependencyTest(String name)
{
super(name);
}
/**
* The JUnit setup method
*/
public void setUp()
{
IUT = new DependencyGraph();
}
/**
* Description of the Class
*/
private class Task
{
private String name;
/**
* Constructor for the Task object
*
* @param name
*/
public Task(String name)
{
this.name = name;
}
/**
* Description of the Method
*/
public String toString()
{
return name;
}
}
/**
* Description of the Field
*/
public Task T1 = new Task("T1");
/**
* Description of the Field
*/
public Task T2 = new Task("T2");
/**
* Description of the Field
*/
public Task T3 = new Task("T3");
/**
* Description of the Field
*/
public Task T4 = new Task("T4");
/**
* Description of the Field
*/
public Task T5 = new Task("T5");
/**
* A unit test for JUnit
*/
public void testNoDeps()
throws Throwable
{
Set deps = new HashSet();
IUT.addDependencies(T1, deps);
}
/**
* A unit test for JUnit
*/
public void testTwoTasksNoDeps()
throws Throwable
{
Set deps = new HashSet();
IUT.addDependencies(T1, deps);
IUT.addDependencies(T2, deps);
}
/**
* A unit test for JUnit
*/
public void testSelfDep()
throws Throwable
{
Set deps = new HashSet();
deps.add(T1);
try
{
IUT.addDependencies(T1, deps);
fail("Self Dependency added without exception.");
}
catch (CircularDependencyException ex)
{}
}
/**
* A unit test for JUnit
*/
public void testTwoCyclicDeps()
throws Throwable
{
Set t1Deps = new HashSet();
t1Deps.add(T2);
Set t2Deps = new HashSet();
t2Deps.add(T1);
IUT.addDependencies(T1, t1Deps);
try
{
IUT.addDependencies(T2, t2Deps);
fail("No CircularDependencyException thrown.");
}
catch (CircularDependencyException ex)
{}
}
/**
* A unit test for JUnit
*/
public void testThreeCyclicDeps()
throws Throwable
{
Set t1Deps = new HashSet();
t1Deps.add(T2);
Set t2Deps = new HashSet();
t2Deps.add(T3);
Set t3Deps = new HashSet();
t3Deps.add(T1);
IUT.addDependencies(T1, t1Deps);
IUT.addDependencies(T2, t2Deps);
try
{
IUT.addDependencies(T3, t3Deps);
fail("No CircularDependencyException Thrown.");
}
catch (CircularDependencyException ex)
{}
}
/**
* A unit test for JUnit
*/
public void testSortedDepsEasy()
throws Throwable
{
Set t1Deps = new HashSet();
t1Deps.add(T2);
Set t2Deps = new HashSet();
t2Deps.add(T3);
IUT.addDependencies(T1, t1Deps);
IUT.addDependencies(T2, t2Deps);
IUT.addDependencies(T3, new HashSet());
// T3
List t3SDeps =
IUT.getSortedDependencies(T3);
assertEquals("T3: Wrong number of Deps for T3",
1, t3SDeps.size());
assertEquals("T3: Wrong thing at pos 0",
T3, t3SDeps.get(0));
// T2
List t2SDeps =
IUT.getSortedDependencies(T2);
assertEquals("T2: Wrong number of Deps for T2",
2, t2SDeps.size());
try
{
assertEquals("T2: Wrong thing at pos 0",
T3, t2SDeps.get(0));
assertEquals("T2: Wrong thing at pos 1",
T2, t2SDeps.get(1));
}
catch (Throwable ex)
{
System.err.println(t2SDeps);
throw ex;
}
// T1
List t1SDeps =
IUT.getSortedDependencies(T1);
assertEquals("T1: Wrong number of Deps for T1",
3, t1SDeps.size());
assertEquals("T1: Wrong thing at pos 0",
T3, t1SDeps.get(0));
assertEquals("T1: Wrong thing at pos 1",
T2, t1SDeps.get(1));
assertEquals("T1: Wrong thing at pos 2",
T1, t1SDeps.get(2));
}
/**
* A unit test for JUnit
*/
public void testSortedDepsHard()
{
Set t1Deps = new HashSet();
t1Deps.add(T2);
t1Deps.add(T3);
t1Deps.add(T5);
Set t2Deps = new HashSet();
t2Deps.add(T4);
t2Deps.add(T5);
IUT.addDependencies(T1, t1Deps);
IUT.addDependencies(T2, t2Deps);
List t1SDeps = IUT.getSortedDependencies(T1);
assertEquals("T1: Wrong number of dependents.",
5, t1SDeps.size());
List t2SDeps = IUT.getSortedDependencies(T2);
assertEquals("T2: Wrong number of dependents.",
3, t2SDeps.size());
List t3SDeps = IUT.getSortedDependencies(T3);
assertEquals("T1: Wrong number of dependents.",
1, t3SDeps.size());
List t4SDeps = IUT.getSortedDependencies(T4);
assertEquals("T4: Wrong number of dependents.",
1, t4SDeps.size());
List t5SDeps = IUT.getSortedDependencies(T5);
assertEquals("T5: Wrong number of dependents.",
1, t5SDeps.size());
}
}
@@ -0,0 +1,567 @@
package org.apache.commons.graph.impl;
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Commons" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* "Commons", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
/**
* AllPathsTest This tests the All Pairs Shortest Path solution.
*/
import org.apache.commons.graph.*;
import org.apache.commons.graph.exception.*;
import java.util.List;
import java.util.Iterator;
import junit.framework.*;
/**
* Description of the Class
*/
public class AllPathsTest
extends WeightedGraphTest
{
/**
* Constructor for the AllPathsTest object
*
* @param name
*/
public AllPathsTest(String name)
{
super(name);
}
/**
* A unit test for JUnit
*/
public void testAPWDirectedEdge()
throws Throwable
{
DirectedGraph g = makeWDirectedEdge();
AllPaths IUT = new AllPaths(g);
verifyPath(g, IUT.getShortestPath(V1, V1),
V1, V1, V1,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V2, V2),
V2, V2, V2,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V1, V2),
V1, V2, V1, V1_V2,
5.0, 2, 1);
try
{
IUT.getShortestPath(V2, V1);
fail("NoPathException not thrown.");
}
catch (NoPathException ex)
{}
}
/**
* A unit test for JUnit
*/
public void testAPPositiveCycle()
throws Throwable
{
DirectedGraph g = makePositiveCycle();
AllPaths IUT = new AllPaths(g);
verifyPath(g, IUT.getShortestPath(V1, V1),
V1, V1, V1,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V2, V2),
V2, V2, V2,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V3, V3),
V3, V3, V3,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V1, V2),
V1, V2, V1, V1_V2,
2.0, 2, 1);
verifyPath(g, IUT.getShortestPath(V2, V3),
V2, V3, V2, V2_V3,
4.0, 2, 1);
verifyPath(g, IUT.getShortestPath(V3, V1),
V3, V1, V3, V3_V1,
1.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V1, V3),
V1, V3, V2, V1_V2,
6.0, 3, 2);
verifyPath(g, IUT.getShortestPath(V2, V1),
V2, V1, V3, V2_V3,
5.5, 3, 2);
verifyPath(g, IUT.getShortestPath(V3, V2),
V3, V2, V1, V1_V2,
3.5, 3, 2);
}
/**
* A unit test for JUnit
*/
public void testAPPositivePartNegCycle()
throws Throwable
{
DirectedGraph g = makePositivePartNegCycle();
AllPaths IUT = new AllPaths(g);
verifyPath(g, IUT.getShortestPath(V1, V1),
V1, V1, V1,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V2, V2),
V2, V2, V2,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V3, V3),
V3, V3, V3,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V1, V2),
V1, V2, V1, V1_V2,
2.0, 2, 1);
verifyPath(g, IUT.getShortestPath(V2, V3),
V2, V3, V2, V2_V3,
4.0, 2, 1);
verifyPath(g, IUT.getShortestPath(V3, V1),
V3, V1, V3, V3_V1,
-1.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V1, V3),
V1, V3, V2, V2_V3,
6.0, 3, 2);
verifyPath(g, IUT.getShortestPath(V2, V1),
V2, V1, V3, V2_V3,
2.5, 3, 2);
verifyPath(g, IUT.getShortestPath(V3, V2),
V3, V2, V1, V1_V2,
0.5, 3, 2);
}
/**
* A unit test for JUnit
*/
public void testAPNegativeCycle()
throws Throwable
{
try
{
AllPaths IUT = new AllPaths(makeNegativeCycle());
fail("NegativeCycleException not thrown.");
}
catch (NegativeCycleException ex)
{}
}
/**
* A unit test for JUnit
*/
public void testAPNegativePartPosCycle()
throws Throwable
{
try
{
AllPaths IUT = new AllPaths(makeNegativePartPosCycle());
fail("NegativeCycleException not thrown.");
}
catch (NegativeCycleException ex)
{}
}
/*
* Test Pipes now. . .
*/
/**
* A unit test for JUnit
*/
public void testAPPositivePipe()
throws Throwable
{
DirectedGraph g = makePositivePipe();
AllPaths IUT = new AllPaths(g);
verifyPath(g, IUT.getShortestPath(V1, V1),
V1, V1, V1,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V2, V2),
V2, V2, V2,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V3, V3),
V3, V3, V3,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V1, V2),
V1, V2, V1, V1_V2,
1.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V2, V3),
V2, V3, V2, V2_V3,
3.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V1, V3),
V1, V3, V2, V1_V2,
5.0, 3, 2);
}
/**
* A unit test for JUnit
*/
public void testAPPositivePartNegPipe()
throws Throwable
{
DirectedGraph g = makePositivePartNegPipe();
AllPaths IUT = new AllPaths(g);
verifyPath(g, IUT.getShortestPath(V1, V1),
V1, V1, V1,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V2, V2),
V2, V2, V2,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V3, V3),
V3, V3, V3,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V1, V2),
V1, V2, V1, V1_V2,
-1.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V2, V3),
V2, V3, V2, V2_V3,
3.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V1, V3),
V1, V3, V2, V2_V3,
2.0, 3, 2);
}
/**
* A unit test for JUnit
*/
public void testAPNegativePipe()
throws Throwable
{
DirectedGraph g = makeNegativePipe();
AllPaths IUT = new AllPaths(g);
verifyPath(g, IUT.getShortestPath(V1, V1),
V1, V1, V1,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V2, V2),
V2, V2, V2,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V3, V3),
V3, V3, V3,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V1, V2),
V1, V2, V1, V1_V2,
-1.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V2, V3),
V2, V3, V2, V2_V3,
-3.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V1, V3),
V1, V3, V2, V1_V2,
-5.0, 3, 2);
}
/**
* A unit test for JUnit
*/
public void testAPNegativePartPosPipe()
throws Throwable
{
DirectedGraph g = makeNegativePartPosPipe();
AllPaths IUT = new AllPaths(g);
verifyPath(g, IUT.getShortestPath(V1, V1),
V1, V1, V1,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V2, V2),
V2, V2, V2,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V3, V3),
V3, V3, V3,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V1, V2),
V1, V2, V1, V1_V2,
1.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V2, V3),
V2, V3, V2, V2_V3,
-3.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V1, V3),
V1, V3, V2, V1_V2,
-2.0, 3, 2);
}
/**
* A unit test for JUnit
*/
public void testMultiplePathL()
throws Throwable
{
DirectedGraph g = makeMultiplePathL();
AllPaths IUT = new AllPaths(g);
verifyPath(g, IUT.getShortestPath(V1, V1),
V1, V1, V1,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V2, V2),
V2, V2, V2,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V3, V3),
V3, V3, V3,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V4, V4),
V4, V4, V4,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V1, V2),
V1, V2, V1, V1_V2,
1.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V1, V3),
V1, V3, V1, V1_V3,
2.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V2, V4),
V2, V4, V2, V2_V4,
1.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V3, V4),
V3, V4, V3, V3_V4,
2.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V1, V4),
V1, V4, V2, V1_V2,
3.0, 3, 2);
}
/**
* A unit test for JUnit
*/
public void testMultiplePathR()
throws Throwable
{
DirectedGraph g = makeMultiplePathR();
AllPaths IUT = new AllPaths(g);
verifyPath(g, IUT.getShortestPath(V1, V1),
V1, V1, V1,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V2, V2),
V2, V2, V2,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V3, V3),
V3, V3, V3,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V4, V4),
V4, V4, V4,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V1, V2),
V1, V2, V1, V1_V2,
2.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V1, V3),
V1, V3, V1, V1_V3,
1.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V2, V4),
V2, V4, V2, V2_V4,
2.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V3, V4),
V3, V4, V3, V3_V4,
1.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V1, V4),
V1, V4, V3, V1_V3,
3.0, 3, 2);
}
/**
* A unit test for JUnit
*/
public void testMultiplePathEarlyLow()
throws Throwable
{
DirectedGraph g = makeMultiplePathEarlyLow();
AllPaths IUT = new AllPaths(g);
verifyPath(g, IUT.getShortestPath(V1, V1),
V1, V1, V1,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V2, V2),
V2, V2, V2,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V3, V3),
V3, V3, V3,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V4, V4),
V4, V4, V4,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V1, V2),
V1, V2, V1, V1_V2,
10.0, 2, 1);
verifyPath(g, IUT.getShortestPath(V1, V3),
V1, V3, V1, V1_V3,
0.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V2, V4),
V2, V4, V2, V2_V4,
10.0, 2, 1);
verifyPath(g, IUT.getShortestPath(V3, V4),
V3, V4, V3, V3_V4,
10.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V1, V4),
V1, V4, V3, V3_V4,
11.0, 3, 2);
}
/**
* A unit test for JUnit
*/
public void testMultiplePathEarlyHigh()
throws Throwable
{
DirectedGraph g = makeMultiplePathEarlyHigh();
AllPaths IUT = new AllPaths(g);
verifyPath(g, IUT.getShortestPath(V1, V1),
V1, V1, V1,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V2, V2),
V2, V2, V2,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V3, V3),
V3, V3, V3,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V4, V4),
V4, V4, V4,
0.0, 1, 0);
verifyPath(g, IUT.getShortestPath(V1, V2),
V1, V2, V1, V1_V2,
10.0, 2, 1);
verifyPath(g, IUT.getShortestPath(V1, V3),
V1, V3, V1, V1_V3,
10.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V2, V4),
V2, V4, V2, V2_V4,
10.0, 2, 1);
verifyPath(g, IUT.getShortestPath(V3, V4),
V3, V4, V3, V3_V4,
0.5, 2, 1);
verifyPath(g, IUT.getShortestPath(V1, V4),
V1, V4, V3, V1_V3,
11.0, 3, 2);
}
/**
* Description of the Method
*/
public void verifyPath(DirectedGraph g, WeightedPath wp,
Vertex start, Vertex end, Vertex mid,
double cost, int vertexCount, int edgeCount)
throws Throwable
{
verifyPath(g, wp, start, end, mid,
null, cost, vertexCount, edgeCount);
}
/**
* Description of the Method
*/
public void verifyPath(DirectedGraph g, WeightedPath wp,
Vertex start, Vertex end, Vertex mid, Edge midE,
double cost, int vertexCount, int edgeCount)
throws Throwable
{
assertEquals("Wrong Start",
start, wp.getStart());
assertEquals("Wrong End",
end, wp.getEnd());
assertEquals("Wrong Cost of Path: " + start + "->" + end,
cost, wp.getWeight(), 0.0001);
assertEquals("Wrong number of Vertices in " + start + "->" + end,
vertexCount, wp.getVertices().size());
assertEquals("Wrong number of Edges in " + start + "->" + end,
edgeCount, wp.getEdges().size());
assertTrue("Path " + start + "->" + end + " doesn't contain: " + mid,
wp.getVertices().contains(mid));
if (midE != null)
{
assertTrue("Path " + start + "-> " + end + " doesn't contain edge: " + midE,
wp.getEdges().contains(midE));
}
List edgeList = wp.getEdges();
List vertList = wp.getVertices();
for (int i = 0; i < edgeList.size(); i++)
{
assertEquals("Edge: " + edgeList.get(i) + " doesn't use " +
vertList.get(i) + " as source.",
g.getSource((Edge) edgeList.get(i)),
(Vertex) vertList.get(i));
assertEquals("Edge: " + edgeList.get(i) + " doesn't use " +
vertList.get(i) + " as target.",
g.getTarget((Edge) edgeList.get(i)),
(Vertex) vertList.get(i + 1));
}
}
}
@@ -0,0 +1,10 @@
package org.apache.commons.graph.impl;
/**
* Dummy This is a dummy interface with no methods to ensure that things are
* getting built by the Factory properly.
*/
public interface Dummy
{
}
@@ -0,0 +1,120 @@
package org.apache.commons.graph.impl;
import java.util.Set;
import java.util.HashSet;
import org.apache.commons.graph.*;
import org.apache.commons.graph.contract.*;
import org.apache.commons.graph.exception.*;
/**
* Description of the Class
*/
public class DummyContract
implements Contract
{
/**
* Description of the Field
*/
public DirectedGraph impl = null;
/**
* Description of the Field
*/
public boolean doVerify = false;
/**
* Description of the Field
*/
public Set acceptAddEdges = new HashSet();
/**
* Description of the Field
*/
public Set acceptAddVertices = new HashSet();
/**
* Description of the Field
*/
public Set acceptDelEdges = new HashSet();
/**
* Description of the Field
*/
public Set acceptDelVertices = new HashSet();
/**
* Sets the impl attribute of the DummyContract object
*/
public void setImpl(DirectedGraph impl)
{
this.impl = impl;
}
/**
* Gets the interface attribute of the DummyContract object
*/
public Class getInterface()
{
return org.apache.commons.graph.impl.Dummy.class;
}
/**
* Description of the Method
*/
public void verify()
throws GraphException
{
if (!doVerify)
{
throw new GraphException("Verify Failed.");
}
}
/**
* Adds a feature to the Edge attribute of the DummyContract object
*/
public void addEdge(Edge e,
Vertex start,
Vertex end)
throws GraphException
{
if (acceptAddEdges.contains(e))
{
throw new GraphException("Edge " + e + " not on list.");
}
}
/**
* Adds a feature to the Vertex attribute of the DummyContract object
*/
public void addVertex(Vertex v)
throws GraphException
{
if (acceptAddVertices.contains(v))
{
throw new GraphException("Vertex " + v + " not on list.");
}
}
/**
* Description of the Method
*/
public void removeEdge(Edge e)
throws GraphException
{
if (acceptDelEdges.contains(e))
{
throw new GraphException("Edge " + e + " not on list.");
}
}
/**
* Description of the Method
*/
public void removeVertex(Vertex v)
throws GraphException
{
if (acceptDelVertices.contains(v))
{
throw new GraphException("Vertex " + v + " not on list.");
}
}
}
@@ -0,0 +1,217 @@
package org.apache.commons.graph.impl;
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Commons" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* "Commons", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
import org.apache.commons.graph.*;
import org.apache.commons.graph.contract.*;
import org.apache.commons.graph.exception.*;
/**
* Description of the Class
*/
public class GraphFactoryTest extends GraphTest
{
private GraphFactory IUT = null;
/**
* Constructor for the GraphFactoryTest object
*
* @param name
*/
public GraphFactoryTest(String name)
{
super(name);
}
/**
* The JUnit setup method
*/
public void setUp()
{
IUT = new GraphFactory();
}
// Are the Interfaces right?
/**
* A unit test for JUnit
*/
public void testInterfaceNoWeight()
throws Throwable
{
Contract contracts[] =
new Contract[1];
DummyContract c0 = new DummyContract();
c0.doVerify = true;
contracts[0] = c0;
DirectedGraph dg =
IUT.makeDirectedGraph(contracts,
false,
makeTwoCycle());
assertTrue("Graph should implement Dummy.",
dg instanceof Dummy);
assertTrue("Graph should not implement WeightedGraph.",
!(dg instanceof WeightedGraph));
}
/**
* A unit test for JUnit
*/
public void testInterfaceWeight()
throws Throwable
{
Contract contracts[] =
new Contract[1];
DummyContract c0 = new DummyContract();
c0.doVerify = true;
contracts[0] = c0;
DirectedGraph dg =
IUT.makeDirectedGraph(contracts,
true,
makeTwoCycle());
assertTrue("Graph should implement Dummy.",
dg instanceof Dummy);
assertTrue("Graph should implement WeightedGraph.",
dg instanceof WeightedGraph);
}
/**
* A unit test for JUnit
*/
public void testMInterfaceNoWeight()
throws Throwable
{
Contract contracts[] =
new Contract[1];
DummyContract c0 = new DummyContract();
c0.doVerify = true;
contracts[0] = c0;
MutableDirectedGraph dg =
IUT.makeMutableDirectedGraph(contracts,
false,
makeTwoCycle());
assertTrue("Graph should implement Dummy.",
dg instanceof Dummy);
assertTrue("Graph should not implement WeightedGraph.",
!(dg instanceof WeightedGraph));
}
/**
* A unit test for JUnit
*/
public void testMInterfaceWeight()
throws Throwable
{
Contract contracts[] =
new Contract[1];
DummyContract c0 = new DummyContract();
c0.doVerify = true;
contracts[0] = c0;
MutableDirectedGraph dg =
IUT.makeMutableDirectedGraph(contracts,
true,
makeTwoCycle());
assertTrue("Graph should implement Dummy.",
dg instanceof Dummy);
assertTrue("Graph should implement WeightedGraph.",
dg instanceof WeightedGraph);
}
// Does it utilize the Contracts?
/**
* A unit test for JUnit
*/
public void testInvalidContract()
throws Throwable
{
Contract contracts[] =
new Contract[1];
DummyContract c0 = new DummyContract();
c0.doVerify = false;
contracts[0] = c0;
try
{
DirectedGraph dg =
IUT.makeDirectedGraph(contracts,
false,
makeTwoCycle());
fail("GraphException not thrown.");
}
catch (GraphException e)
{}
}
/**
* A unit test for JUnit
*/
public void testValidContract()
throws Throwable
{
Contract contracts[] =
new Contract[1];
DummyContract c0 = new DummyContract();
c0.doVerify = true;
contracts[0] = c0;
DirectedGraph dg =
IUT.makeDirectedGraph(contracts,
false,
makeTwoCycle());
}
}