/* *******************************************************************
 * Copyright (c) 2002 Palo Alto Research Center, Incorporated (PARC).
 * 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 
 *  
 * Contributors: 
 *     PARC     initial implementation 
 * ******************************************************************/


package org.aspectj.weaver.patterns;

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

import org.aspectj.weaver.VersionedDataInputStream;
import org.aspectj.weaver.patterns.NamePattern;

import junit.framework.TestCase;

/**
 * @author hugunin
 *
 * To change this generated comment edit the template variable "typecomment":
 * Window>Preferences>Java>Templates.
 * To enable and disable the creation of type comments go to
 * Window>Preferences>Java>Code Generation.
 */
public class NamePatternTestCase extends TestCase {
	static String[] matchAll = new String[] {
		"*****",
		"*"
	};

	
	static String[] match1 = new String[] {
		"abcde", "abc*", "abcd*", "abcde*",
		"*e", "*cde", "*abcde",
		"a*e", "ab*e", "abc*de",
		"*a*b*c*d*e*", "a*c*e", "a***bcde",
		"*d*",
		};
	
	static String[] match2 = new String[] {
		"abababab",
		"aba*", "abab*", "abababab*",
		"*b", "*ab", "*ababab", "*abababab",
		"a*b", "ab*b", "abab*abab",
		"*a*b*a*b*a*b*a*b*", "a*****b", "a**b", "ab*b*b",
		};
		
	/**
	 * Constructor for PatternTestCase.
	 * @param name
	 */
	public NamePatternTestCase(String name) {
		super(name);
	}
	
	public void testMatch() {
		checkMatch("abcde", matchAll, true);
		checkMatch("abcde", match1, true);
		checkMatch("abcde", match2, false);
		
		checkMatch("abababab", matchAll, true);
		checkMatch("abababab", match1, false);
		checkMatch("abababab", match2, true);
		
	}

	/**
	 * Method checkMatch.
	 * @param string
	 * @param matchAll
	 * @param b
	 */
	private void checkMatch(String string, String[] patterns, boolean shouldMatch) {
		for (int i=0, len=patterns.length; i < len; i++) {
			NamePattern p = new NamePattern(patterns[i]);
			checkMatch(string, p, shouldMatch);
		}
	}

	private void checkMatch(String string, NamePattern p, boolean shouldMatch) {
		String msg = "matching " + string + " to " + p;
		assertEquals(msg, shouldMatch, p.matches(string));
	}
	
	
	public void testSerialization() throws IOException {
		checkSerialization(matchAll);
		checkSerialization(match1);
		checkSerialization(match2);
	}
	
	private void checkSerialization(String[] patterns) throws IOException {
		for (int i=0, len=patterns.length; i < len; i++) {
			NamePattern p = new NamePattern(patterns[i]);
			checkSerialization(p);
		}
	}
	
	
	private void checkSerialization(NamePattern p) throws IOException {
		ByteArrayOutputStream bo = new ByteArrayOutputStream();
		DataOutputStream out = new DataOutputStream(bo);
		p.write(out);
		out.close();
		
		ByteArrayInputStream bi = new ByteArrayInputStream(bo.toByteArray());
		VersionedDataInputStream in = new VersionedDataInputStream(bi);
		NamePattern newP = NamePattern.read(in);
		
		assertEquals("write/read", p, newP);	
	}

}