package org.drools.rule;
/*
* $Id: RuleTest.java,v 1.23 2005/05/08 04:05:13 dbarnett Exp $
*
* Copyright 2002-2005 (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
* 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.
*
*/
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;
import java.util.List;
import org.drools.DroolsTestCase;
import org.drools.spi.Consequence;
import org.drools.spi.Duration;
import org.drools.spi.MockObjectType;
import org.drools.spi.Tuple;
public class RuleTest extends DroolsTestCase
{
public void testConstruct()
{
Rule rule = new Rule( "test-rule" );
assertTrue( !rule.isValid( ) );
try
{
rule.checkValidity( );
fail( "Should have thrown InvalidRuleException" );
}
catch ( InvalidRuleException e )
{
// expected and correct
}
assertLength( 0,
rule.getParameterDeclarations( ) );
assertLength( 0,
rule.getConditions( ) );
assertNull( rule.getConsequence( ) );
}
public void testParameterDeclarations() throws Exception
{
Rule rule = new Rule( "test-rule" );
Declaration paramDecl = rule.addParameterDeclaration( "paramVar",
new MockObjectType( true ) );
List paramDecls = rule.getParameterDeclarations( );
assertLength( 1,
paramDecls );
assertContains( paramDecl,
paramDecls );
assertSame( paramDecl,
rule.getParameterDeclaration( "paramVar" ) );
assertNull( rule.getParameterDeclaration( "betty" ) );
}
public void testLocalDeclarations() throws Exception
{
Rule rule = new Rule( "test-rule" );
Declaration paramDecl = rule.addParameterDeclaration( "paramVar",
new MockObjectType( true ) );
List paramDecls = rule.getParameterDeclarations( );
assertLength( 1,
paramDecls );
assertContains( paramDecl,
paramDecls );
assertNull( rule.getParameterDeclaration( "betty" ) );
}
public void testDocumentation() throws Exception
{
Rule rule = new Rule( "test-rule" );
assertNull( rule.getDocumentation( ) );
rule.setDocumentation( "the cheesiest!" );
assertEquals( "the cheesiest!",
rule.getDocumentation( ) );
}
public void testSalience() throws Exception
{
Rule rule = new Rule( "test-rule" );
assertEquals( 0,
rule.getSalience( ) );
rule.setSalience( 42 );
assertEquals( 42,
rule.getSalience( ) );
}
public void testLoadOrder() throws Exception
{
Rule rule = new Rule( "test-rule" );
assertEquals( 0,
rule.getLoadOrder( ) );
rule.setLoadOrder( 42 );
assertEquals( 42,
rule.getLoadOrder( ) );
}
public void testDeclarationOrder() throws Exception
{
Rule rule = new Rule( "test-rule" );
assertEquals( 0,
rule.addParameterDeclaration( "paramVar0",
new MockObjectType( true ) ).getIndex( ) );
assertEquals( 1,
rule.addParameterDeclaration( "paramVar1",
new MockObjectType( true ) ).getIndex( ) );
}
public void testDuration_SimpleLong() throws Exception
{
Rule rule = new Rule( "test-rule" );
rule.setDuration( 42L );
Duration dur = rule.getDuration( );
assertNotNull( dur );
assertTrue( dur instanceof FixedDuration );
assertEquals( 42L,
rule.getDuration( ).getDuration( null ) );
}
public void testDuration_WithObject() throws Exception
{
Duration dur = new FixedDuration( 42 );
Rule rule = new Rule( "test-rule" );
rule.setDuration( dur );
assertSame( dur,
rule.getDuration( ) );
}
public void testConsequence() throws Exception
{
Rule rule = new Rule( "test-rule" );
assertNull( rule.getConsequence( ) );
Consequence consequence = new Consequence( )
{
public void invoke(Tuple tuple)
{
// nothing;
}
};
rule.setConsequence( consequence );
assertSame( consequence,
rule.getConsequence( ) );
}
public void testSerializeRuleSet() throws Exception
{
Rule rule = new Rule( "test-rule" );
rule.addParameterDeclaration( "paramVar",
new MockObjectType( true ) );
// add consequence
rule.setConsequence( new org.drools.spi.InstrumentedConsequence( ) );
// add conditions
rule.addCondition( new org.drools.spi.InstrumentedCondition( ) );
rule.addCondition( new org.drools.spi.InstrumentedCondition( ) );
rule.setSalience( 42 );
rule.setLoadOrder( 22 );
// Serialize to a byte array
ByteArrayOutputStream bos = new ByteArrayOutputStream( );
ObjectOutput out = new ObjectOutputStream( bos );
out.writeObject( rule );
out.close( );
// Get the bytes of the serialized object
byte[] bytes = bos.toByteArray( );
// Deserialize from a byte array
ObjectInput in = new ObjectInputStream( new ByteArrayInputStream( bytes ) );
rule = (Rule) in.readObject( );
in.close( );
assertEquals( 42,
rule.getSalience( ) );
assertEquals( 22,
rule.getLoadOrder( ) );
assertLength( 1,
rule.getParameterDeclarations( ) );
assertLength( 2,
rule.getConditions( ) );
}
}