DOMVAfter customerVisitor = new DOMVAfter();
DOMVAfter itemsVisitor = new DOMVAfter();
smooks.addVisitor(customerVisitor, "customer");
smooks.addVisitor(customerVisitor, "customer/**");
smooks.addVisitor(itemsVisitor, "items");
smooks.addVisitor(itemsVisitor, "items/**");
smooks.filterSource(new StreamSource(getClass().getResourceAsStream("order.xml")));
assertEquals("user-x-fname-lname-customer-", customerVisitor.stringBuilder.toString());
assertEquals("units-name-price-item-units-name-price-item-items-", itemsVisitor.stringBuilder.toString());