--- a/src/test/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/core/nodeeditor/DeleteAttributeAtTest.java	Sun Aug 31 03:30:03 2014 +0900
+++ b/src/test/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/core/nodeeditor/DeleteAttributeAtTest.java	Sun Aug 31 07:46:30 2014 +0900
@@ -1,6 +1,8 @@
 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.TreeNode;
 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;
@@ -15,19 +17,19 @@
 		String key = "KEY";
 		ByteBuffer value = ByteBuffer.wrap(key.getBytes());
 		
-		DefaultTreeNode node = new DefaultTreeNode();
-		Either<Error,DefaultTreeNode> either = node.getAttributes().put(key, value);
+		TreeNode node = new DefaultTreeNode();
+		Either<Error,TreeNode> either = node.getAttributes().put(key, value);
 		if(either.isA()){
 			Assert.fail();
 		}
 		node = either.b();
 		
 		DeleteAttribute op = new DeleteAttribute(key);
-		Either<Error,DefaultTreeNode> either2 = op.edit(node);
+		Either<Error,TreeNode> either2 = op.edit(node);
 		if(either2.isA()){
 			Assert.fail();
 		}
-		DefaultTreeNode newNode = either2.b();
+		TreeNode newNode = either2.b();
 		ByteBuffer ret = newNode.getAttributes().get(key);
 		Assert.assertNull(ret);
 	}