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<!DOCTYPE html>
<html>
<!--
Test adapted from https://dxr.mozilla.org/chromium/source/src/third_party/WebKit/LayoutTests/fast/dom/TreeWalker/script-tests/traversal-skip-most.js
-->
<head>
<title>TreeWalker: traversal-skip-most</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="traversal-support.js"></script>
<div id=log></div>
</head>
<body>
<p>Test TreeWalker with skipping</p>
<script>
var testElement;
setup(function() {
testElement = document.createElement("div");
testElement.id = 'root';
// testElement.innerHTML='<div id="A1"><div id="B1" class="keep"></div><div id="B2">this text matters</div><div id="B3" class="keep"></div></div>';
// <div id="A1">
// <div id="B1" class="keep"></div>
// <div id="B2">this text matters</div>
// <div id="B3" class="keep"></div>
// </div>
// XXX for Servo, build the tree without using innerHTML
var a1 = document.createElement("div"); a1.id = "A1";
var b1 = document.createElement("div"); b1.id = "B1"; b1.className = "keep";
var b2 = document.createElement("div"); b2.id = "B2";
var b3 = document.createElement("div"); b3.id = "B3"; b3.className = "keep";
testElement.appendChild(a1);
a1.appendChild(b1);
a1.appendChild(b2)
.appendChild(document.createTextNode("this text matters"));
a1.appendChild(b3);
});
var filter = {
acceptNode: function(node) {
if (node.className == 'keep')
return NodeFilter.FILTER_ACCEPT;
return NodeFilter.FILTER_SKIP;
}
}
test(function()
{
var walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, filter);
assert_node(walker.firstChild(), { type: Element, id: 'B1' });
assert_node(walker.nextSibling(), { type: Element, id: 'B3' });
}, 'Testing nextSibling');
test(function()
{
var walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, filter);
walker.currentNode = testElement.querySelectorAll('#B3')[0];
assert_node(walker.previousSibling(), { type: Element, id: 'B1' });
}, 'Testing previousSibling');
</script>
</body>
</html>
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