buildertest.java

来自「drools 一个开放源码的规则引擎」· Java 代码 · 共 223 行

package org.drools.reteoo;

/*
 * $Id: BuilderTest.java,v 1.27 2005/05/08 04:05:13 dbarnett Exp $
 *
 * Copyright 2001-2005 (C) The Werken Company. All Rights Reserved.
 *
 * Redistribution and use of this software and associated documentation
 * ("Software"), with or without modification, are permitted provided that the
 * following conditions are met:
 *
 * 1. Redistributions of source code must retain copyright statements and
 * notices. Redistributions must also contain a copy of this document.
 *
 * 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 name "drools" must not be used to endorse or promote products derived
 * from this Software without prior written permission of The Werken Company.
 * For written permission, please contact [e-mail].
 *
 * 4. Products derived from this Software may not be called "drools" nor may
 * "drools" appear in their names without prior written permission of The Werken
 * Company. "drools" is a registered trademark of The Werken Company.
 *
 * 5. Due credit should be given to The Werken Company.
 * (http://drools.werken.com/).
 *
 * THIS SOFTWARE IS PROVIDED BY THE WERKEN COMPANY AND CONTRIBUTORS ``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 WERKEN COMPANY 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
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import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;

import junit.framework.TestCase;

import org.drools.rule.Declaration;
import org.drools.rule.Rule;
import org.drools.spi.InstrumentedCondition;
import org.drools.spi.MockObjectType;
import org.drools.spi.ObjectType;

public class BuilderTest extends TestCase
{
    private Builder     builder;

    private ObjectType  stringType;

    private ObjectType  objectType;

    private Declaration stringDecl;

    private Declaration objectDecl;

    private Rule        rule1;

    public void setUp() throws Exception
    {
        this.builder = new Builder( );

        this.stringType = new MockObjectType( true );
        this.objectType = new MockObjectType( true );

        this.rule1 = new Rule( "cheese" );

        this.stringDecl = this.rule1.addParameterDeclaration( "string", this.stringType );

        this.objectDecl = this.rule1.addParameterDeclaration( "object", this.objectType );
    }

    public void testCreateParameterNodesSameIdDifferentRules() throws Exception
    { 
        Rule rule_1 = new Rule( "rule-1" );
        rule_1.addParameterDeclaration("p1", stringType);
        
        Rule rule_2 = new Rule( "rule-2" );
        rule_2.addParameterDeclaration("p1", stringType);

        List nodes_1 = this.builder.createParameterNodes( rule_1 );
        List nodes_2 = this.builder.createParameterNodes( rule_1 );
        
        assertEquals(1, nodes_1.size());
        assertEquals(1, nodes_2.size());
        assertSame(nodes_1.get(0), nodes_2.get(0));
    }
    
    public void testCreateParameterNodesDifferentIdsSameTypes() throws Exception
    { 
        Rule rule_1 = new Rule( "rule-1" );
        rule_1.addParameterDeclaration("p1", stringType);
        
        Rule rule_2 = new Rule( "rule-2" );
        rule_2.addParameterDeclaration("p2", stringType);

        List nodes_1 = this.builder.createParameterNodes( rule_1 );
        List nodes_2 = this.builder.createParameterNodes( rule_2 );
        
        assertEquals(1, nodes_1.size());
        assertEquals(1, nodes_2.size());
        assertNotSame(nodes_1.get(0), nodes_2.get(0));
    }
    
    public void testCreateParameterNodes()
    {
        List nodes = this.builder.createParameterNodes( this.rule1 );

        assertEquals( 2, nodes.size( ) );

        Set decls = new HashSet( );

        Iterator nodeIter = nodes.iterator( );
        ParameterNode eachNode;

        while ( nodeIter.hasNext( ) )
        {
            eachNode = ( ParameterNode ) nodeIter.next( );

            decls.add( eachNode.getDeclaration( ) );
        }

        assertEquals( 2, decls.size( ) );

        assertTrue( decls.contains( this.stringDecl ) );
        assertTrue( decls.contains( this.objectDecl ) );
    }

    public void testMatches()
    {
        Set decls = new HashSet( );

        InstrumentedCondition cond = new InstrumentedCondition( );

        cond.addDeclaration( this.stringDecl );
        cond.addDeclaration( this.objectDecl );

        assertTrue( !this.builder.matches( cond, decls ) );

        decls.add( this.stringDecl );

        assertTrue( !this.builder.matches( cond, decls ) );

        decls.add( this.objectDecl );

        assertTrue( this.builder.matches( cond, decls ) );
    }

    public void testFindMatchingTupleSourceForCondition()
    {
        List sources = new LinkedList( );

        MockTupleSource source;

        // ----------------------------------------
        // ----------------------------------------

        source = new MockTupleSource( );

        source.addTupleDeclaration( this.stringDecl );

        sources.add( source );

        InstrumentedCondition cond = new InstrumentedCondition( );

        cond.addDeclaration( this.stringDecl );

        TupleSource found;

        found = this.builder.findMatchingTupleSourceForCondition( cond, sources );

        assertNotNull( found );

        assertSame( source, found );

        // ----------------------------------------
        // ----------------------------------------

        sources.clear( );

        source = new MockTupleSource( );

        source.addTupleDeclaration( this.objectDecl );

        found = this.builder.findMatchingTupleSourceForCondition( cond, sources );

        assertNull( found );

        // ----------------------------------------
        // ----------------------------------------

        cond.addDeclaration( this.objectDecl );

        sources.clear( );

        source = new MockTupleSource( );

        source.addTupleDeclaration( this.objectDecl );
        source.addTupleDeclaration( this.stringDecl );

        sources.add( source );

        found = this.builder.findMatchingTupleSourceForCondition( cond, sources );

        assertNotNull( found );

        assertSame( source, found );
    }
}