package jp.ac.u_ryukyu.ie.cr.shoshi.jungle.core.nodeeditor;

import java.nio.ByteBuffer;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.EditableNodeWrapper;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.trasnformer.DeleteAttribute;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.DefaultTreeNode;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Either;
import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Error;
import junit.framework.Assert;
import junit.framework.TestCase;

public class DeleteAttributeAtTest extends TestCase
{
	public void testEdit()
	{
		String key = "KEY";
		ByteBuffer value = ByteBuffer.wrap(key.getBytes());
		
		DefaultTreeNode node = new DefaultTreeNode();
		Either<Error,DefaultTreeNode> either = node.getAttributes().put(key, value);
		if(either.isA()){
			Assert.fail();
		}
		node = either.b();
		
		DeleteAttribute op = new DeleteAttribute(key);
		EditableNodeWrapper<DefaultTreeNode> wrapper = new EditableNodeWrapper<DefaultTreeNode>(node);
		Either<Error, EditableNodeWrapper<DefaultTreeNode>> either2 = op.edit(wrapper);
		if(either2.isA()){
			Assert.fail();
		}
		DefaultTreeNode newNode = either2.b().getWrap();
		ByteBuffer ret = newNode.getAttributes().get(key);
		Assert.assertNull(ret);
	}
}