Package ch3.sec2

Source Code of ch3.sec2.AddTimerAdapterTest

/***
* 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.Field;
import java.lang.reflect.Method;

import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.util.CheckClassAdapter;

import util.AbstractTestCase;

/**
* ASM Guide example test class.
*
* @author Eric Bruneton
*/
public class AddTimerAdapterTest extends AbstractTestCase {

  public void test() throws Exception {
    ClassWriter cw = new ClassWriter(0);
    CheckClassAdapter ca = new CheckClassAdapter(cw);
    ClassVisitor cv = getClassAdapter(ca);
    generateBasicClass(cv);
    checkClass(defineClass("C", cw.toByteArray()));
  }

  protected void checkClass(Class c) throws Exception {
    Object o = c.newInstance();
    Method m = c.getMethod("m");
    m.invoke(o);
    Field f = c.getField("timer");
    assertTrue(f.getLong(null) > 0);
  }

  @Override
  protected ClassVisitor getClassAdapter(ClassVisitor cv) {
    return new AddTimerAdapter(cv);
  }
}
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