Tests to make sure the DataFlow works.

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package org.apache.commons.graph.algorithm.dataflow;
/* ====================================================================
* 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 java.util.BitSet;
import junit.framework.*;
public class DataFlowSolutionsTest extends GraphTest {
private static BitSet BS_000 = null;
private static BitSet BS_001 = null;
private static BitSet BS_010 = null;
private static BitSet BS_011 = null;
private static BitSet BS_100 = null;
private static BitSet BS_101 = null;
private static BitSet BS_110 = null;
private static BitSet BS_111 = null;
static {
BS_000 = new BitSet();
BS_001 = new BitSet();
BS_010 = new BitSet();
BS_011 = new BitSet();
BS_100 = new BitSet();
BS_101 = new BitSet();
BS_110 = new BitSet();
BS_111 = new BitSet();
BS_001.set( 3 );
BS_011.set( 3 );
BS_101.set( 3 );
BS_111.set( 3 );
BS_010.set( 2 );
BS_011.set( 2 );
BS_110.set( 2 );
BS_111.set( 2 );
BS_100.set( 1 );
BS_101.set( 1 );
BS_110.set( 1 );
BS_111.set( 1 );
}
public DataFlowSolutionsTest( String name ) {
super( name );
}
public void testBitSetEquals() throws Throwable {
BitSet one = new BitSet();
BitSet two = new BitSet();
one.set( 15 );
two.set( 15 );
assertTrue( one.equals( two ));
}
/**
* Test a single Vertex.
*
* @ [ gen (1) ] --> [ leaves(1) ]
*
* @ [ gen (1) kill(1) ] --> [ ]
*
* @ [ ] --> [ ]
*/
public void testOneGraph() throws Throwable {
DirectedGraph graph = makeDirSingleVertex();
BitSet clear = new BitSet();
BitSet gen = new BitSet();
BitSet kill = new BitSet();
BitSet leaves = new BitSet();
DataFlowSolutions IUT = null;
MockDataFlowEq dfe = null;
dfe = new MockDataFlowEq();
dfe.addVertex( V1, BS_100, BS_000 );
IUT = new DataFlowSolutions( graph, dfe );
assertEquals( "Expected nothing to reach V1.",
BS_000, IUT.reaches( V1 ));
assertEquals( "Expected 1 to leave V1.",
BS_100, IUT.leaves( V1 ) );
dfe = new MockDataFlowEq();
dfe.addVertex( V1, BS_100, BS_100 );
IUT = new DataFlowSolutions( graph, dfe );
assertEquals( "Expected nothing to reach V1.",
BS_000, IUT.reaches( V1 ));
assertEquals( "Expected nothing to leave V1.",
BS_000, IUT.leaves( V1 ) );
dfe = new MockDataFlowEq();
dfe.addVertex( V1, BS_000, BS_100 );
IUT = new DataFlowSolutions( graph, dfe );
assertEquals( "Expected nothing to leave V1.",
BS_000, IUT.leaves( V1 ) );
assertEquals( "Expected nothing to reach V1.",
BS_000, IUT.reaches( V1 ) );
}
/**
* Test two vertices
*
* gen(V1) = (1,2)
* kill(V2) = (1,2)
* leaves(V1) = (1,2)
* reaches(V1) = ()
* leaves(V2) = ()
* reaches(V2) = (1,2)
*/
public void testTwoVerts0()
throws Throwable
{
DirectedGraph graph = makeDirectedEdge();
MockDataFlowEq dfe = new MockDataFlowEq();
BitSet genV1 = new BitSet();
genV1.set( 1 );
genV1.set( 2 );
dfe.addVertex( V1, BS_110, BS_000 );
dfe.addVertex( V2, BS_000, BS_110 );
DataFlowSolutions IUT = new DataFlowSolutions( graph, dfe );
assertEquals( "Expected 1 and 2 to leave V1",
BS_110, IUT.leaves( V1 ));
assertEquals( "Expected nothing to reach V1",
BS_000, IUT.reaches( V1 ));
assertEquals( "Expected 1 and 2 to reach V2",
BS_110, IUT.reaches( V2 ));
assertEquals( "Expected nothing to leave V2",
BS_000, IUT.leaves( V2 ));
}
/**
* Test two vertices
*
* gen(V1) = (1,2)
* kill(V2) = (1)
* leaves(V1) = (1,2)
* reaches(V1) = ()
* leaves(V2) = (2)
* reaches(V2) = (1,2)
*/
public void testTwoVerts1()
throws Throwable
{
DirectedGraph graph = makeDirectedEdge();
MockDataFlowEq dfe = new MockDataFlowEq();
dfe.addVertex( V1, BS_110, BS_000 );
dfe.addVertex( V2, BS_000, BS_100 );
DataFlowSolutions IUT = new DataFlowSolutions( graph, dfe );
assertEquals( "Expected 1 and 2 to leave V1",
BS_110, IUT.leaves( V1 ));
assertEquals( "Expected nothing to reach V1",
BS_000, IUT.reaches( V1 ));
assertEquals( "Expected 1 and 2 to reach V2",
BS_110, IUT.reaches( V2 ));
assertEquals( "Expected 2 to leave V2",
BS_010, IUT.leaves( V2 ));
}
/**
* Test two vertices
*
* gen(V1) = (1)
* kill(v1) = ()
*
* gen(V2) = (2)
* kill(V2) = (1)
*
* leaves(V1) = (1)
* reaches(V1) = ()
*
* leaves(V2) = (2)
* reaches(V2) = (1)
*/
public void testTwoVerts2()
throws Throwable
{
DirectedGraph graph = makeDirectedEdge();
MockDataFlowEq dfe = new MockDataFlowEq();
BitSet genV1 = new BitSet();
genV1.set( 1 );
dfe.addVertex( V1, BS_100, BS_000 );
dfe.addVertex( V2, BS_010, BS_100 );
DataFlowSolutions IUT = new DataFlowSolutions( graph, dfe );
assertEquals( "Expected 1 to leave V1",
BS_100, IUT.leaves( V1 ));
assertEquals( "Expected nothing to reach V1",
BS_000, IUT.reaches( V1 ));
assertEquals( "Expected 1 to reach V2",
BS_100, IUT.reaches( V2 ));
assertEquals( "Expected 2 to leave V2",
BS_010, IUT.leaves( V2 ));
}
/**
* Test with a Cycle:
*
* * +1
* / \
* +2 *---* +3
*
* 1, 2, 3 reach all and leave all.
*/
public void testCycle0()
throws Throwable
{
DirectedGraph graph = makeDirectedCycle();
MockDataFlowEq dfe = new MockDataFlowEq();
dfe.addVertex( V1, BS_100, BS_000);
dfe.addVertex( V2, BS_010, BS_000);
dfe.addVertex( V3, BS_001, BS_000);
DataFlowSolutions IUT = new DataFlowSolutions( graph, dfe );
assertEquals("Expecting all to reach V1",
BS_111, IUT.reaches( V1 ));
assertEquals("Expecting all to reach V2",
BS_111, IUT.reaches( V2 ));
assertEquals("Expecting all to reach V3",
BS_111, IUT.reaches( V3 ));
assertEquals("Expecting all to leave V1",
BS_111, IUT.leaves( V1 ));
assertEquals("Expecting all to leave V2",
BS_111, IUT.leaves( V2 ));
assertEquals("Expecting all to leave V3",
BS_111, IUT.leaves( V3 ));
}
/**
* Test with a Cycle:
*
* * +1 -3
* / \
* +2 -1 *---* +3 -2
*
*/
public void testCycle1()
throws Throwable
{
DirectedGraph graph = makeDirectedCycle();
MockDataFlowEq dfe = new MockDataFlowEq();
dfe.addVertex( V1, BS_100, BS_001);
dfe.addVertex( V2, BS_010, BS_100);
dfe.addVertex( V3, BS_001, BS_010);
DataFlowSolutions IUT = new DataFlowSolutions( graph, dfe );
assertEquals("Expecting 3 to reach V1",
BS_001, IUT.reaches( V1 ));
assertEquals("Expecting 1 to reach V2",
BS_100, IUT.reaches( V2 ));
assertEquals("Expecting 2 to reach V3",
BS_010, IUT.reaches( V3 ));
assertEquals("Expecting 1 to leave V1",
BS_100, IUT.leaves( V1 ));
assertEquals("Expecting 2 to leave V2",
BS_010, IUT.leaves( V2 ));
assertEquals("Expecting 3 to leave V3",
BS_001, IUT.leaves( V3 ));
}
}
@@ -0,0 +1,83 @@
package org.apache.commons.graph.algorithm.dataflow;
/* ====================================================================
* 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.Map;
import java.util.BitSet;
import java.util.HashMap;
import org.apache.commons.graph.*;
public class MockDataFlowEq
implements DataFlowEquations
{
private Map generates = new HashMap(); // VERTEX X BITSET
private Map kills = new HashMap(); // VERTEX X BITSET
public MockDataFlowEq() { }
public void addVertex( Vertex v, BitSet generate, BitSet kill ) {
generates.put( v, generate );
kills.put( v, kill );
}
public BitSet generates( Vertex v ) {
return (BitSet) generates.get( v );
}
public BitSet kills( Vertex v ) {
return (BitSet) kills.get( v );
}
}