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


import java.nio.ByteBuffer;

import jp.ac.u_ryukyu.ie.cr.jungle.DefaultJungle;
import jp.ac.u_ryukyu.ie.cr.jungle.Jungle;
import jp.ac.u_ryukyu.ie.cr.jungle.JungleTree;
import jp.ac.u_ryukyu.ie.cr.jungle.JungleTreeEditor;
import jp.ac.u_ryukyu.ie.cr.jungle.store.impl.DefaultNodePath;
import jp.ac.u_ryukyu.ie.cr.jungle.store.impl.DefaultTreeEditor;
import jp.ac.u_ryukyu.ie.cr.jungle.store.impl.TreeNode;
import jp.ac.u_ryukyu.ie.cr.jungle.traverser.DefaultTraverser;
import jp.ac.u_ryukyu.ie.cr.jungle.util.Either;
import org.junit.Test;

import jp.ac.u_ryukyu.ie.cr.jungle.util.Error;
import junit.framework.Assert;

public class GetOldTreeTest {

  @Test
  public void getOldTreeTest() {
    Jungle jungle = new DefaultJungle(null, "hogehoge", new DefaultTreeEditor(new DefaultTraverser()));
    jungle.createNewTree("tree");
    JungleTree tree = jungle.getTreeByName("tree");
    JungleTreeEditor editor = tree.getTreeEditor();
    DefaultNodePath path = new DefaultNodePath();
   
    for (int num = 0; num < 10; num++) {
      JungleTreeEditor addChildEditor = editor.addNewChildAt(path, num).b();
      JungleTreeEditor putAttributeEditor = addChildEditor.putAttribute(path.add(num), "test", ByteBuffer.wrap("data".getBytes())).b();
      Either<Error, JungleTreeEditor> successEither = putAttributeEditor.success();
      Assert.assertFalse(successEither.isA());
      editor = successEither.b();
    }
    System.out.println(tree.revision());
    TreeNode root = tree.getRootNode();
    Assert.assertTrue(root.getChildren().at(9).isB());
    
    JungleTree oldTree = tree.getOldTree(9).b();
    System.out.println(oldTree.revision());
    TreeNode oldRoot = oldTree.getRootNode();
    Assert.assertTrue(oldRoot.getChildren().at(9).isA());
  }
}