/**************************************************************************************
* Copyright (c) Jonas Bon?r, Alexandre Vasseur. All rights reserved. *
* http://aspectwerkz.codehaus.org *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the LGPL license *
* a copy of which has been included with this distribution in the license.txt file. *
**************************************************************************************/
package test;
import junit.framework.TestCase;
import java.io.Serializable;
import java.io.ObjectStreamClass;
import java.lang.reflect.Modifier;
import javassist.ClassPool;
import javassist.CtClass;
import javassist.CtNewMethod;
import javassist.CtField;
import javassist.CtConstructor;
import org.codehaus.aspectwerkz.transform.delegation.JavassistHelper;
import org.objectweb.asm.Constants;
/**
* Test the Javassist based SerialVerUid computation.
* See AW-244 for synthetic members bug.
*
* @author <a href="mailto:alex@gnilux.com">Alexandre Vasseur</a>
*/
public class SerialVerUidTest extends TestCase implements Serializable {
public Object[] someMethod() {return null;}
public SerialVerUidTest() {super();}
public SerialVerUidTest(Object[] foo) {;}
protected static final int someField = 32;
public void testSerialVerUid() throws Throwable {
Class javaClass = this.getClass();
long javaSerialVerUid = ObjectStreamClass.lookup(javaClass).getSerialVersionUID();
CtClass javassistClass = ClassPool.getDefault().get(this.getClass().getName());
long javassistSerialVerUid = JavassistHelper.calculateSerialVerUid(javassistClass);
assertEquals(javaSerialVerUid, javassistSerialVerUid);
}
public void testSerialVerUidSynthetic() throws Throwable {
CtClass javassistClass = ClassPool.getDefault().get(this.getClass().getName());
// build a class with synthetic method, field, ctor
javassistClass.setName(this.getClass().getName()+"Generated");
int syntheticModifier = Constants.ACC_SYNTHETIC | Modifier.PUBLIC;
javassistClass.addMethod(CtNewMethod.make(syntheticModifier, CtClass.intType, "syntheticDo", new CtClass[]{}, new CtClass[]{}, "{return 0;}", javassistClass));
CtField field = new CtField(CtClass.intType, "syntheticField", javassistClass);
field.setModifiers(syntheticModifier);
javassistClass.addField(field);
CtConstructor ctor = new CtConstructor(new CtClass[]{CtClass.intType}, javassistClass);
ctor.setModifiers(syntheticModifier);
ctor.setBody("{super();}");
javassistClass.addConstructor(ctor);
long javassistSerialVerUid = JavassistHelper.calculateSerialVerUid(javassistClass);
Class javaClassGenerated = javassistClass.toClass();
long javaSerialVerUid = ObjectStreamClass.lookup(javaClassGenerated).getSerialVersionUID();
assertEquals(javaSerialVerUid, javassistSerialVerUid);
}
}