/***
* ASM Guide
* Copyright (c) 2007 Eric Bruneton
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 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. Neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS 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 COPYRIGHT OWNER OR 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.
*/
package ch3.sec2;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.Type;
import org.objectweb.asm.util.CheckClassAdapter;
import util.AbstractTestCase;
/**
* ASM Guide example test class.
*
* @author Eric Bruneton
*/
public class ProxyGeneratorTest extends AbstractTestCase {
private Object p;
private Method m;
private Object[] args;
public void test() throws Throwable {
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
CheckClassAdapter ca = new CheckClassAdapter(cw);
ProxyGenerator pg = new ProxyGenerator(Comparable.class);
pg.generate(Type.getType("LC;"), ca);
InvocationHandler handler = new InvocationHandler() {
public Object invoke(Object proxy, Method method, Object[] args)
throws Throwable {
ProxyGeneratorTest.this.p = proxy;
ProxyGeneratorTest.this.m = method;
ProxyGeneratorTest.this.args = args;
return 1;
}
};
Class c = defineClass("C", cw.toByteArray());
Constructor ct = c.getConstructor(InvocationHandler.class);
Comparable o = (Comparable) ct.newInstance(handler);
int result = o.compareTo(new Integer(123));
assertEquals(o, p);
assertEquals(Comparable.class.getMethod("compareTo", Object.class),
m);
assertNotNull(args);
assertEquals(1, args.length);
assertEquals(new Integer(123), args[0]);
assertEquals(1, result);
}
}