package tjg.testing;

import java.util.ArrayList;
import java.util.List;

import junit.framework.TestCase;

public class PermutationsIteratorTest extends TestCase
{

	public void testIntegerPermutations() throws Exception
	{
		List<Integer> list = new ArrayList<Integer>();
		list.add( new Integer(1));
		list.add( new Integer(2));
		list.add( new Integer(3));
		list.add( new Integer(4));
		
		PermutationsIterator<Integer> lpr = new PermutationsIterator<Integer>(list);
		
		while( lpr.hasNext())
		{
			List<Integer> r = lpr.next();
			printIntegerList(r);
		}
		
		// write your own assertion
	}
	
	private void printIntegerList( List<Integer> list)
	{
		StringBuilder sb = new StringBuilder();
		for( Integer i : list )
		{
			sb.append(" "). append( i );
		}
		
		System.out.println(sb.toString());
	}
}