/***
* ASM tests
* Copyright (c) 2002-2005 France Telecom
* 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
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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package org.ow2.asm.commons;
import java.io.InputStream;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.lang.instrument.ClassFileTransformer;
import java.lang.instrument.IllegalClassFormatException;
import java.lang.instrument.Instrumentation;
import java.security.ProtectionDomain;
import junit.framework.TestSuite;
import org.ow2.asm.AbstractTest;
import org.ow2.asm.ClassAdapter;
import org.ow2.asm.ClassReader;
import org.ow2.asm.ClassVisitor;
import org.ow2.asm.ClassWriter;
import org.ow2.asm.MethodVisitor;
import org.ow2.asm.util.TraceClassVisitor;
/**
* LocalVariablesSorter tests.
*
* @author Eric Bruneton
*/
public class LocalVariablesSorterTest2 extends AbstractTest {
public static void premain(
final String agentArgs,
final Instrumentation inst)
{
inst.addTransformer(new ClassFileTransformer() {
public byte[] transform(
final ClassLoader loader,
final String className,
final Class<?> classBeingRedefined,
final ProtectionDomain domain,
final byte[] classFileBuffer)
throws IllegalClassFormatException
{
String n = className.replace('/', '.');
if (agentArgs.length() == 0 || n.indexOf(agentArgs) != -1) {
return transformClass(classFileBuffer);
} else {
return null;
}
}
});
}
static byte[] transformClass(final byte[] clazz) {
ClassReader cr = new ClassReader(clazz);
ClassWriter cw = new ClassWriter(0);
cr.accept(new ClassAdapter(cw) {
@Override
public MethodVisitor visitMethod(
final int access,
final String name,
final String desc,
final String signature,
final String[] exceptions)
{
return new LocalVariablesSorter(access,
desc,
cv.visitMethod(access,
name,
desc,
signature,
exceptions));
}
}, ClassReader.EXPAND_FRAMES);
return cw.toByteArray();
}
public static TestSuite suite() throws Exception {
return new LocalVariablesSorterTest2().getSuite();
}
@Override
public void test() throws Exception {
try {
Class.forName(n, true, getClass().getClassLoader());
} catch (NoClassDefFoundError ncdfe) {
// ignored
} catch (UnsatisfiedLinkError ule) {
// ignored
} catch (ClassFormatError cfe) {
fail(cfe.getMessage());
} catch (VerifyError ve) {
String s = n.replace('.', '/') + ".class";
InputStream is = getClass().getClassLoader().getResourceAsStream(s);
ClassReader cr = new ClassReader(is);
byte[] b = transformClass(cr.b);
StringWriter sw1 = new StringWriter();
StringWriter sw2 = new StringWriter();
sw2.write(ve.toString() + "\n");
ClassVisitor cv1 = new TraceClassVisitor(new PrintWriter(sw1));
ClassVisitor cv2 = new TraceClassVisitor(new PrintWriter(sw2));
cr.accept(cv1, 0);
new ClassReader(b).accept(cv2, 0);
String s1 = sw1.toString();
String s2 = sw2.toString();
assertEquals("different data", s1, s2);
}
}
}