package org.red5.server.service;

/*
 * RED5 Open Source Flash Server - http://www.osflash.org/red5
 *
 * Copyright (c) 2006-2009 by respective authors. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License as published by the Free Software
 * Foundation; either version 2.1 of the License, or (at your option) any later
 * version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along
 * with this library; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/

import static junit.framework.Assert.assertEquals;
import static junit.framework.Assert.assertNull;
import static junit.framework.Assert.fail;

import java.util.ArrayList;
import java.util.Set;

import org.apache.commons.beanutils.ConversionException;
import org.junit.Test;

/**
 * @author The Red5 Project (red5@osflash.org)
 * @author Luke Hubbard, Codegent Ltd (luke@codegent.com)
 */
public class ConversionUtilsTest {

	class TestJavaBean {

	}

	//private static final Logger log = LoggerFactory.getLogger(ConversionUtilsTest.class);

	@Test
	public void testBasic() {
		Object result = ConversionUtils.convert(new Integer(42), String.class);
		if (!(result instanceof String)) {
			fail("Should be a string");
		}
		String str = (String) result;
		assertEquals("42", str);
	}

	@Test
	public void testConvertListToStringArray() {
		ArrayList<String> source = new ArrayList<String>();

		source.add("Testing 1");
		source.add("Testing 2");
		source.add("Testing 3");

		Class<? extends String[]> target = (new String[0]).getClass();

		Object result = ConversionUtils.convert(source, target);
		if (!(result.getClass().isArray() && result.getClass()
				.getComponentType().equals(String.class))) {
			fail("Should be String[]");
		}
		String[] results = (String[]) result;

		assertEquals(results.length, source.size());
		assertEquals(results[2], source.get(2));

	}

	@Test
	public void testConvertObjectArrayToStringArray() {
		Object[] source = new Object[3];

		source[0] = new Integer(21);
		source[1] = Boolean.FALSE;
		source[2] = "Woot";

		Class<? extends String[]> target = (new String[0]).getClass();

		Object result = ConversionUtils.convert(source, target);
		if (!(result.getClass().isArray() && result.getClass()
				.getComponentType().equals(String.class))) {
			fail("Should be String[]");
		}
		String[] results = (String[]) result;

		assertEquals(results.length, source.length);
		assertEquals(results[2], source[2]);

	}

	@Test
	public void testConvertToSet() {
		Object[] source = new Object[3];
		source[0] = new Integer(21);
		source[1] = Boolean.FALSE;
		source[2] = "Woot";
		Object result = ConversionUtils.convert(source, Set.class);
		if (!(result instanceof Set)) {
			fail("Should be a set");
		}
		Set<?> results = (Set<?>) result;
		assertEquals(results.size(), source.length);

	}

	@Test
	public void testNoOppConvert() {
		TestJavaBean source = new TestJavaBean();
		Object result = ConversionUtils.convert(source, TestJavaBean.class);
		assertEquals(result, source);
	}

	@Test
	public void testNullConvert() {
		Object result = ConversionUtils.convert(null, TestJavaBean.class);
		assertNull(result);
	}
	
	@Test(expected=ConversionException.class)
	public void testNullConvertNoClass() {
		// should throw exception
		ConversionUtils.convert(new TestJavaBean(), null);
	}

}