LayoutTests/traversal/stay-within-root.html - WebKit - Git at Google

 <html>
 <head>
 <script language="JavaScript">
 if (window.testRunner)
     testRunner.dumpAsText();

 function log(message) {
     var console = document.getElementById("console");
     var li = document.createElement("li");
     var text = document.createTextNode(message);
     li.appendChild(text);
     console.appendChild(li);
 }

 function iteratorTest() {
     log("NodeIterator: testing nextNode() (5 should be null)");
     var iterator = document.createNodeIterator(divB, NodeFilter.SHOW_ELEMENT, null, false);
     iterator.root = divB;
     for (i=0; i < 4; i++)
         log(iterator.nextNode());

     log("NodeIterator: testing previousNode() (7 should be null)");
     iterator = document.createNodeIterator(divB, NodeFilter.SHOW_ELEMENT, null, false);
     log(iterator.previousNode());

     log("TreeWalker: testing nextNode() (11 should be null)");
     iterator = document.createTreeWalker(divB, NodeFilter.SHOW_ELEMENT, null, false);
     for (i=0; i < 3; i++)
         log(iterator.nextNode());

     log("TreeWalker: testing previousNode() (13 should be null)");
     iterator = document.createTreeWalker(divB, NodeFilter.SHOW_ELEMENT, null, false);
     log(iterator.previousNode());
 }
 </script>
 </head>

 <body>
 <div id="divA">
 This test checks that the NodeIterator and TreeWalker functions do not go past the root element that they are supposed to stay within.
 <div id="divB">
 <div id="divC">
 </div>
 <div id="divD">
 </div>

 </div>
 </div>

 <ol id="console" > </ol>

 <script>
 iteratorTest();
 </script>

 </body>

 </html>
	<html>
	<head>
	<script language="JavaScript">
	if (window.testRunner)
	testRunner.dumpAsText();

	function log(message) {
	var console = document.getElementById("console");
	var li = document.createElement("li");
	var text = document.createTextNode(message);
	li.appendChild(text);
	console.appendChild(li);
	}

	function iteratorTest() {
	log("NodeIterator: testing nextNode() (5 should be null)");
	var iterator = document.createNodeIterator(divB, NodeFilter.SHOW_ELEMENT, null, false);
	iterator.root = divB;
	for (i=0; i < 4; i++)
	log(iterator.nextNode());

	log("NodeIterator: testing previousNode() (7 should be null)");
	iterator = document.createNodeIterator(divB, NodeFilter.SHOW_ELEMENT, null, false);
	log(iterator.previousNode());

	log("TreeWalker: testing nextNode() (11 should be null)");
	iterator = document.createTreeWalker(divB, NodeFilter.SHOW_ELEMENT, null, false);
	for (i=0; i < 3; i++)
	log(iterator.nextNode());

	log("TreeWalker: testing previousNode() (13 should be null)");
	iterator = document.createTreeWalker(divB, NodeFilter.SHOW_ELEMENT, null, false);
	log(iterator.previousNode());
	}
	</script>
	</head>

	<body>
	<div id="divA">
	This test checks that the NodeIterator and TreeWalker functions do not go past the root element that they are supposed to stay within.
	<div id="divB">
	<div id="divC">
	</div>
	<div id="divD">
	</div>

	</div>
	</div>

	<ol id="console" > </ol>

	<script>
	iteratorTest();
	</script>

	</body>

	</html>