package org.drools.reteoo;
/*
* $Id: ConditionNodeTest.java,v 1.19 2005/05/08 04:05:13 dbarnett Exp $
*
* Copyright 2003-2005 (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 bob@werken.com.
*
* 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
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*/
import java.util.List;
import java.util.Set;
import junit.framework.TestCase;
import org.drools.AssertionException;
import org.drools.RuleBase;
import org.drools.rule.Declaration;
import org.drools.rule.Rule;
import org.drools.spi.FalseCondition;
import org.drools.spi.MockObjectType;
import org.drools.spi.TrueCondition;
public class ConditionNodeTest extends TestCase
{
private RuleBase ruleBase;
private Rule rule;
private ReteTuple tuple;
public ConditionNodeTest(String name)
{
super( name );
}
public void setUp()
{
this.ruleBase = new RuleBaseImpl( new Rete( ) );
this.rule = new Rule( "test-rule 1" );
//add consequence
this.rule.setConsequence( new org.drools.spi.InstrumentedConsequence( ) );
//add condition
rule.addCondition( new org.drools.spi.InstrumentedCondition( ) );
this.tuple = new ReteTuple( (WorkingMemoryImpl) ruleBase.newWorkingMemory( ) );
}
/**
* If a condition allows an incoming Object, then the Object MUST be
* propagated.
*/
public void testAllowed()
{
ConditionNode node = new ConditionNode( rule, null, new TrueCondition( ) );
InstrumentedTupleSink sink = new InstrumentedTupleSink( );
node.addTupleSink( sink );
try
{
RuleBase ruleBase = new RuleBaseImpl( new Rete( ) );
node.assertTuple( this.tuple, ( WorkingMemoryImpl ) ruleBase.newWorkingMemory( ) );
List asserted = sink.getAssertedTuples( );
assertEquals( 1, asserted.size( ) );
ReteTuple tuple = ( ReteTuple ) asserted.get( 0 );
assertSame( this.tuple, tuple );
}
catch ( AssertionException e )
{
fail( e.toString( ) );
}
}
/**
* If a Condition does not allow an incoming Object, then the object MUST
* NOT be propagated.
*/
public void testNotAllowed()
{
ConditionNode node = new ConditionNode( rule, null, new FalseCondition( ) );
InstrumentedTupleSink sink = new InstrumentedTupleSink( );
node.addTupleSink( sink );
try
{
node.assertTuple( this.tuple, ( WorkingMemoryImpl ) this.ruleBase.newWorkingMemory( ) );
List asserted = sink.getAssertedTuples( );
assertEquals( 0, asserted.size( ) );
}
catch ( AssertionException e )
{
fail( e.toString( ) );
}
}
/**
* A FilterNode MUST delegate to its input source for getTupleDeclarations()
* since it does not alter the structure of the Tuples.
*/
public void testGetTupleDeclarations() throws Exception
{
Declaration decl = this.rule.addParameterDeclaration( "object", new MockObjectType( Object.class ) );
ParameterNode paramNode = new ParameterNode( null, decl );
ConditionNode condNode = new ConditionNode( rule, paramNode, null );
Set decls = condNode.getTupleDeclarations( );
assertEquals( 1, decls.size( ) );
assertTrue( decls.contains( decl ) );
}
}