testtransitivegraphcache.java

Jena推理机

/******************************************************************
 * File:        TestTransitiveGraphCacheNew.java
 * Created by:  Dave Reynolds
 * Created on:  25-Nov-2004
 * 
 * (c) Copyright 2004, 2005, 2006, 2007 Hewlett-Packard Development Company, LP
 * [See end of file]
 * $Id: TestTransitiveGraphCache.java,v 1.17 2007/01/02 11:50:50 andy_seaborne Exp $
 *****************************************************************/

package com.hp.hpl.jena.reasoner.test;

import com.hp.hpl.jena.reasoner.transitiveReasoner.TransitiveGraphCache;
import com.hp.hpl.jena.reasoner.TriplePattern;
import  com.hp.hpl.jena.graph.Node;
import  com.hp.hpl.jena.graph.Triple;

import junit.framework.TestCase;
import junit.framework.TestSuite;

/**
 * A purely temporary test suite just used during development and kept
 * off the main unit test paths.
 *  
 * @author <a href="mailto:[e-mail]">Dave Reynolds</a>
 * @version $Revision: 1.17 $
 */

public class TestTransitiveGraphCache extends TestCase {
    
    /** The cache under test */
    TransitiveGraphCache cache;
    
    // Dummy predicates and nodes for the graph
    String NS = "urn:x-hp-test:ex/";
    Node directP = Node.createURI(NS+"directSubProperty");
    Node closedP = Node.createURI(NS+"subProperty");
    
    Node a = Node.createURI(NS+"a");
    Node b = Node.createURI(NS+"b");
    Node c = Node.createURI(NS+"c");
    Node d = Node.createURI(NS+"d");
    Node e = Node.createURI(NS+"e");
    Node f = Node.createURI(NS+"f");
    Node g = Node.createURI(NS+"g");
     
    /**
     * Boilerplate for junit
     */ 
    public TestTransitiveGraphCache( String name ) {
        super( name ); 
    }
    
    /**
     * Boilerplate for junit.
     * This is its own test suite
     */
    public static TestSuite suite() {
        return new TestSuite( TestTransitiveGraphCache.class ); 
//        TestSuite suite = new TestSuite();
//        suite.addTest( new TestTransitiveGraphCache("testEquivalencesSimple"));
//        return suite;
    }  

    /**
     * Test the basic functioning a Transitive closure cache.
     * Caches the graph but not the final closure.
     */
    public void testBasicCache() {
        initCache();
        cache.setCaching(false);
        doBasicTest(cache);
    }
    
    /**
     * Test the basic functioning a Transitive closure cache.
     * Caches the graph and any requested closures
     */
    public void testCachingCache() {
        initCache();
        cache.setCaching(true);
        doBasicTest(cache);
    }
    
    /**
     * Test the clone operation
     */
    public void testCloning() {
        initCache();
        TransitiveGraphCache clone = cache.deepCopy();
        // Mess with the original to check cloning
        cache.addRelation(new Triple(a, closedP, d));
        cache.addRelation(new Triple(g, closedP, a));
        doBasicTest(clone);
    }
        
    /**
     * Initialize the cache with some test data
     */
    private void initCache() {
        // Create a graph with reflexive references, cycles, redundant links
        cache = new TransitiveGraphCache(directP, closedP);        
        cache.addRelation(new Triple(a, closedP, b));
        cache.addRelation(new Triple(b, closedP, e));
        cache.addRelation(new Triple(b, closedP, c));
        cache.addRelation(new Triple(e, closedP, f));
        cache.addRelation(new Triple(c, closedP, f));
        cache.addRelation(new Triple(f, closedP, g));
        cache.addRelation(new Triple(d, closedP, c));
        cache.addRelation(new Triple(d, closedP, e));
        cache.addRelation(new Triple(d, closedP, g));  // reduntant two ways
        cache.addRelation(new Triple(a, closedP, e));  // redundant
        cache.addRelation(new Triple(d, closedP, b));  // Makes both earlier d's redundant
        
        cache.addRelation(new Triple(a, closedP, a));
        cache.addRelation(new Triple(b, closedP, b));
        cache.addRelation(new Triple(c, closedP, c));
        cache.addRelation(new Triple(d, closedP, d));
        cache.addRelation(new Triple(e, closedP, e));
        cache.addRelation(new Triple(f, closedP, f));
        cache.addRelation(new Triple(g, closedP, g));
    }
            
    public void doBasicTest(TransitiveGraphCache cache) {
         // Test forward property patterns
        TestUtil.assertIteratorValues(this, 
            cache.find(new TriplePattern(a, directP, null)),
            new Object[] {
                new Triple(a, closedP, a),
                new Triple(a, closedP, b)
            });
        TestUtil.assertIteratorValues(this, 
            cache.find(new TriplePattern(a, closedP, null)),
            new Object[] {
                new Triple(a, closedP, a),
                new Triple(a, closedP, b),
                new Triple(a, closedP, c),
                new Triple(a, closedP, e),
                new Triple(a, closedP, f),
                new Triple(a, closedP, g)
            });
        TestUtil.assertIteratorValues(this, 
            cache.find(new TriplePattern(a, closedP, g)),
            new Object[] {
                new Triple(a, closedP, g),
            });
            
        // Test backward patterns
        TestUtil.assertIteratorValues(this, 
            cache.find(new TriplePattern(null, directP, f)),
            new Object[] {
                new Triple(e, closedP, f),
                new Triple(f, closedP, f),
                new Triple(c, closedP, f)
            });
        TestUtil.assertIteratorValues(this, 
            cache.find(new TriplePattern(null, closedP, f)),
            new Object[] {
                new Triple(f, closedP, f),
                new Triple(e, closedP, f),
                new Triple(b, closedP, f),
                new Triple(c, closedP, f),
                new Triple(a, closedP, f),
                new Triple(d, closedP, f)
            });
        
        // List all cases
        TestUtil.assertIteratorValues(this, 
            cache.find(new TriplePattern(null, directP, null)),
            new Object[] {
                new Triple(a, closedP, a),
                new Triple(a, closedP, b),
                new Triple(d, closedP, d),
                new Triple(d, closedP, b),
                new Triple(b, closedP, b),
                new Triple(b, closedP, e),
                new Triple(b, closedP, c),
                new Triple(e, closedP, e),
                new Triple(e, closedP, f),
                new Triple(c, closedP, c),
                new Triple(c, closedP, f),
                new Triple(f, closedP, f),
                new Triple(f, closedP, g),
                new Triple(g, closedP, g)
            });
        TestUtil.assertIteratorValues(this, 
            cache.find(new TriplePattern(null, closedP, null)),
            new Object[] {
                new Triple(a, closedP, a),
                new Triple(a, closedP, b),
                new Triple(a, closedP, c),
                new Triple(a, closedP, e),
                new Triple(a, closedP, f),
                new Triple(a, closedP, g),
                new Triple(d, closedP, d),
                new Triple(d, closedP, b),
                new Triple(d, closedP, e),
                new Triple(d, closedP, c),
                new Triple(d, closedP, f),
                new Triple(d, closedP, g),
                new Triple(b, closedP, b),
                new Triple(b, closedP, e),
                new Triple(b, closedP, c),
                new Triple(b, closedP, f),
                new Triple(b, closedP, g),
                new Triple(e, closedP, e),
                new Triple(e, closedP, f),
                new Triple(e, closedP, g),
                new Triple(c, closedP, c),
                new Triple(c, closedP, f),
                new Triple(c, closedP, g),
                new Triple(f, closedP, f),
                new Triple(f, closedP, g),
                new Triple(g, closedP, g)
             });
        
        // Add a look in the graph and check the loop from each starting position
        cache.addRelation(new Triple(g, closedP, e));
        
        TestUtil.assertIteratorValues(this, 
                cache.find(new TriplePattern(e, directP, null)),
                new Object[] {
                    new Triple(e, closedP, e),
                    new Triple(e, closedP, f),
                    new Triple(e, closedP, g)
                });
            TestUtil.assertIteratorValues(this, 
                cache.find(new TriplePattern(f, directP, null)),
                new Object[] {
                    new Triple(f, closedP, f),
                    new Triple(f, closedP, g),
                    new Triple(f, closedP, e)
                });
            TestUtil.assertIteratorValues(this, 
                cache.find(new TriplePattern(g, directP, null)),
                new Object[] {
                    new Triple(g, closedP, g),
                    new Triple(g, closedP, e),
                    new Triple(g, closedP, f)
                });
            TestUtil.assertIteratorValues(this, 
                    cache.find(new TriplePattern(null, directP, e)),
                    new Object[] {
                        new Triple(e, closedP, e),
                        new Triple(f, closedP, e),
                        new Triple(b, closedP, e),
                        new Triple(c, closedP, e),
                        new Triple(g, closedP, e)
                    });
                TestUtil.assertIteratorValues(this, 
                    cache.find(new TriplePattern(null, directP, f)),
                    new Object[] {
                        new Triple(f, closedP, f),
                        new Triple(g, closedP, f),
                        new Triple(b, closedP, f),
                        new Triple(c, closedP, f),
                        new Triple(e, closedP, f)
                    });
                TestUtil.assertIteratorValues(this, 
                    cache.find(new TriplePattern(null, directP, g)),
                    new Object[] {
                        new Triple(g, closedP, g),
                        new Triple(e, closedP, g),
                        new Triple(b, closedP, g),
                        new Triple(c, closedP, g),
                        new Triple(f, closedP, g)
                    });
        TestUtil.assertIteratorValues(this, 
            cache.find(new TriplePattern(g, closedP, null)),
            new Object[] {
                new Triple(g, closedP, g),
                new Triple(g, closedP, e),
                new Triple(g, closedP, f)
            });
        TestUtil.assertIteratorValues(this, 
            cache.find(new TriplePattern(e, closedP, null)),
            new Object[] {
                new Triple(e, closedP, g),
                new Triple(e, closedP, e),
                new Triple(e, closedP, f)
            });
        TestUtil.assertIteratorValues(this, 
            cache.find(new TriplePattern(f, closedP, null)),
            new Object[] {
                new Triple(f, closedP, g),
                new Triple(f, closedP, e),
                new Triple(f, closedP, f)
            });
        /*        
        System.out.println("Add e-f-g-e loop");