/* ToString.java -- Tests which checks that the toString method on a proxy is
correctly forwarded to the InvocationHandler
Copyright (C) 2006 olivier jolly <olivier.jolly@pcedev.com>
This file is part of Mauve.
Mauve is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
Mauve is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with Mauve; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
*/
// Tags: JDK1.3
package gnu.testlet.wonka.lang.reflect.Proxy;
import gnu.testlet.TestHarness;
import gnu.testlet.Testlet;
import java.io.Serializable;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
/**
* Test which ensure that the toString method is properly forwarded to the
* InvocationHandler. This tests notably fails with cacao 0.94
* (http://b2.complang.tuwien.ac.at/cgi-bin/bugzilla/show_bug.cgi?id=17)
* @author olivier jolly <olivier.jolly@pcedev.com>
* @see java.lang.reflect.InvocationHandler
*/
public class ToString implements Testlet
{
public void test(TestHarness harness)
{
InvocationHandler handler = new FacadeInvocationHandler(new Foo());
Object proxy = Proxy.newProxyInstance(this.getClass().getClassLoader(),
new Class[] { Serializable.class },
handler);
harness.check(proxy.toString(), "foo toString() result", "toString() test");
}
/**
* Very simple facade which delegates all calls to a target object.
*/
private static class FacadeInvocationHandler implements InvocationHandler
{
Object facaded;
public FacadeInvocationHandler(Object facaded)
{
this.facaded = facaded;
}
public Object invoke(Object proxy, Method method, Object[] args)
throws Throwable
{
return method.invoke(facaded, args);
}
}
/**
* Very simple class with a predictable toString() result.
*/
private static class Foo
{
public String toString()
{
return "foo toString() result";
}
}
}