JarJarTest.java

/*******************************************************************************
 * Copyright (c) 2001, 2010 Mathew A. Nelson and Robocode contributors
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://robocode.sourceforge.net/license/epl-v10.html
 *
 * Contributors:
 *     Pavel Savara
 *     - Initial implementation
 *******************************************************************************/
package net.sf.robocode.host.jarjar;


import org.junit.Test;
import org.junit.Assert;

import java.net.URL;
import java.net.URLConnection;
import java.net.URLClassLoader;
import java.io.InputStream;
import java.io.IOException;
import java.io.InputStreamReader;

import net.sf.robocode.io.URLJarCollector;
import net.sf.robocode.io.JarJar;


/**
 * @author Pavel Savara (original)
 */
public class JarJarTest {
	static {
		JarJarURLConnection.register();
	}

	@Test
	public void run() throws IOException {

		String clas = "Hello.class";
		String inner = "Inner.jar";
		String outer = "file:src/test/resources/Outer.jar";

		final String separ = "!/";
		URL u = new URL("jar:jarjar:" + outer + JarJar.SEPARATOR + inner + separ + clas);
		final URLConnection urlConnection = URLJarCollector.openConnection(u);
		final InputStream inputStream = urlConnection.getInputStream();
		InputStreamReader isr = new InputStreamReader(inputStream);
		char[] c = new char[4];

		int len = isr.read(c);

		Assert.assertEquals(len, 4);
		Assert.assertEquals('T', c[0]);
		Assert.assertEquals('e', c[1]);
		Assert.assertEquals('s', c[2]);
		Assert.assertEquals('t', c[3]);
		Assert.assertFalse(isr.ready());
		isr.close();
		inputStream.close();
	}

	@Test
	public void runClassLoader() throws IOException, ClassNotFoundException {
		String clas = "tested.robots.Ahead";
		String inner = "Inner.jar";
		String outer = "file:src/test/resources/Outer.jar";
		final String separ = "!/";
		final String root = "jar:jarjar:" + outer + JarJar.SEPARATOR + inner + separ;
		URL u = new URL(root);

		ClassLoader ucl = new URLClassLoader(new URL[] { u});

		ucl.loadClass(clas);
	}
}