packagerendertest.java

jboss规则引擎

package org.drools.decisiontable.model;

/*
 * Copyright 2005 JBoss Inc
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import junit.framework.TestCase;

/**
 * @author <a href="mailto:[e-mail]"> Michael Neale</a>
 * 
 * Test rendering and running a whole sample ruleset, from the model classes
 * down.
 */
public class PackageRenderTest extends TestCase {

    public Rule buildRule() {
        final Rule rule = new Rule( "myrule",
                              new Integer( 42 ),
                              1 );
        rule.setComment( "rule comments" );

        final Condition cond = new Condition();
        cond.setComment( "cond comment" );
        cond.setSnippet( "cond snippet" );
        rule.addCondition( cond );

        final Consequence cons = new Consequence();
        cons.setComment( "cons comment" );
        cons.setSnippet( "cons snippet" );
        rule.addConsequence( cons );

        return rule;
    }

    public void testRulesetRender() {
        final Package ruleSet = new Package( "my ruleset" );
        ruleSet.addFunctions( "my functions" );
        ruleSet.addRule( buildRule() );

        final Rule rule = buildRule();
        rule.setName( "other rule" );
        ruleSet.addRule( rule );

        final Import imp = new Import();
        imp.setClassName( "clazz name" );
        imp.setComment( "import comment" );
        ruleSet.addImport( imp );

        final DRLOutput out = new DRLOutput();
        ruleSet.renderDRL( out );

        final String drl = out.getDRL();
        assertNotNull( drl );
        System.out.println( drl );
        assertTrue( drl.indexOf( "rule \"myrule\"" ) > -1 );
        assertTrue( drl.indexOf( "salience 42" ) > -1 );
        assertTrue( drl.indexOf( "#rule comments" ) > -1 );
        assertTrue( drl.indexOf( "my functions" ) > -1 );
        assertTrue( drl.indexOf( "package my_ruleset;" ) > -1 );
        assertTrue( drl.indexOf( "rule \"other rule\"" ) > drl.indexOf( "rule \"myrule\"" ) );

    }

}