public static  void main(String[] args) 
{
        TestRunner.run(ParentTest.class);
}

 public  void testDocument() throws Exception 
{
        testParentRelationship(document.getRootElement());
}

 public  void testFragment() throws Exception 
{
        DocumentFactory factory = new DocumentFactory();
        Element root = factory.createElement("root");
        Element first = root.addElement("child");
        Element second = root.addElement("child");
        testXPathNode(root, first);
        testXPathNode(root, second);
}

 protected  void testParentRelationship(Element element) 
{
        testParentRelationship(element, element.attributes());
        testParentRelationship(element, element.content());
}

 protected  void testParentRelationship(Element parent,
    List content) 
{
        for (Iterator iter = content.iterator(); iter.hasNext();) {
            Object object = iter.next();
            if (object instanceof Element) {
                testParentRelationship((Element) object);
            }
            testXPathNode(parent, (Node) object);
        }
}

 protected  void testXPathNode(Element parent,
    Node node) 
{
        if (node.supportsParent()) {
            log("Node: " + node);
            log("Parent: " + parent);
            log("getParent(): " + node.getParent());
            assertTrue("getParent() returns parent for: " + node, node
                    .getParent() == parent);
        } else {
            // lets create an XPath node
            Node xpathNode = node.asXPathResult(parent);
            assertTrue("XPath Node supports parent for: " + xpathNode,
                    xpathNode.supportsParent());
            assertTrue("getParent() returns parent for: " + xpathNode,
                    xpathNode.getParent() == parent);
        }
}