TestNewDemoFormat.java

/*
  TestNewDemoFormat.java

  (c) 2012-2013 Edward Swartz

  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://www.eclipse.org/legal/epl-v10.html
 */
package v9t9.engine.demos.test;

import static org.junit.Assert.assertEquals;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;

import org.junit.Test;

import v9t9.common.events.NotifyException;
import v9t9.engine.demos.format.DemoInputBuffer;
import v9t9.engine.demos.format.DemoOutputBuffer;

/**
 * @author ejs
 *
 */
public class TestNewDemoFormat {

	private ByteArrayOutputStream bos = new ByteArrayOutputStream(256);
	private DemoOutputBuffer out = new DemoOutputBuffer(bos, "test", 1);
	private ByteArrayInputStream bis;
	private DemoInputBuffer in;

	protected void readIt() throws IOException {
		out.flush();
		bis = new ByteArrayInputStream(bos.toByteArray());
		in = new DemoInputBuffer(bis, 1, "test"); 
		bis.read();
		in.refill();
	}
	@Test
	public void testVarEncodeSmall() throws IOException {
		exercise(new int[] { 0, 1, 127, 128, 128, 255, -1, -19, -128 });
	}
	
	@Test
	public void testVarEncodeBig() throws IOException {
		exercise(new int[] { 0x12345, -0xfeed, 0, 0, -1, 0x12345678, 0xfedbcda1, 0xffffffff, 0x7fffeeee });
	}
	/**
	 * @param is
	 * @throws NotifyException 
	 * @throws IOException 
	 */
	private void exercise(int[] is) throws IOException {
		out.flush();
		for (int idx = 0; idx < is.length; idx++) {
			out.pushVar(is[idx]);
		}
		
		readIt();

		for (int idx = 0; idx < is.length; idx++) {
			String message = "idx:"+idx;
			assertEquals(message, is[idx], in.readVar());
		}		
	}
}