package net.sf.javaml.core;

import static org.junit.Assert.*;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Random;

import org.junit.Test;

public class TestFold {
	@Test
	public void test(){
		List<Instance> instances = new ArrayList<Instance>();
		
		for(int i = 0; i < 100; i++)
			instances.add(new DenseInstance(new double[]{1, 2, i}));

		DefaultDataset dd = new DefaultDataset(instances);

		Fold f = new Fold(dd, new int[]{0, 1, 2});
		
		assertNotNull(f.classes());
		
		try{
			f.add(new DenseInstance(new double[]{0.0, 1.2}));
		}catch(UnsupportedOperationException uoe){}

		try{
			f.folds(0, new Random());
		}catch(UnsupportedOperationException uoe){}
		
		assertNotNull(f.instance(0));
		
		try{
			f.kNearest(1, new DenseInstance(new double[]{0.0, 1.2}), null);
		}catch(UnsupportedOperationException uoe){}

		try{
			f.add(0, new DenseInstance(new double[]{0.0, 1.2}));
		}catch(UnsupportedOperationException uoe){}

		try{
			f.addAll(instances);
		}catch(UnsupportedOperationException uoe){}

		try{
			f.addAll(0, instances);
		}catch(UnsupportedOperationException uoe){}

		try{
			f.clear();
		}catch(UnsupportedOperationException uoe){}

		try{
			f.contains(instances);
		}catch(UnsupportedOperationException uoe){}

		try{
			f.containsAll(instances);
		}catch(UnsupportedOperationException uoe){}

		assertNotNull(f.get(0));
		
		try{
			f.indexOf(instances);
		}catch(UnsupportedOperationException uoe){}

		assertFalse(f.isEmpty());
		
		Iterator<Instance> fi = f.iterator();
		
		while(fi.hasNext())
			fi.next();
		
		try{
			f.lastIndexOf(instances);
		}catch(UnsupportedOperationException uoe){}

		fi = f.listIterator();
		
		while(fi.hasNext()){
			fi.next();
			try{
				fi.remove();
			}catch(UnsupportedOperationException uoe){}
		}
		
		fi = f.listIterator(0);
		
		try{
			f.remove(instances);
		}catch(UnsupportedOperationException uoe){}

		try{
			f.removeAll(instances);
		}catch(UnsupportedOperationException uoe){}

		try{
			f.retainAll(instances);
		}catch(UnsupportedOperationException uoe){}

		try{
			f.set(0, instances.get(0));
		}catch(UnsupportedOperationException uoe){}

		assertEquals(3, f.size());
		
		try{
			f.subList(0, 5);
		}catch(UnsupportedOperationException uoe){}

		assertNotNull(f.toArray());
		assertNotNull(f.toArray(new Instance[]{}));
		
		assertEquals(3, f.noAttributes());
		
		f.classIndex(null);
		f.classValue(0);
		
		assertNotNull(f.copy());
	}
}