public void testDel() throws ConnectionException {
log.info("TestNestedBuffer::testDel");
BT_NBF buffer = (BT_NBF) connection.tpalloc("BT_NBF", "employee", 0);
buffer.btaddattribute("id", new Long(1234));
buffer.btaddattribute("id", new Long(1001));
buffer.btaddattribute("id", new Long(1001));
assertTrue(buffer.btdelattribute("id", 1));
log.info("delete attribute id at index 1");
assertFalse(buffer.btdelattribute("id", 1));