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Test Info:

<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<title>Test for Bug 559526</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=559526">Mozilla Bug 559526</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
<div id="nodes" style="display:none">
<div id="child1"></div>
<div id="child2"></div>
<div id="child3"></div>
<div id="child4"></div>
<div id="child5"></div>
<div id="child6"></div>
<div id="child7"></div>
<div id="child8"></div>
</div>
<script type="application/javascript">
/** Test for Bug 559526 **/
var it;
var recurse = false;
var testCount = 0;
function filter(node) {
if (node.id == "child3" && ! recurse) {
recurse = true;
var ex = null;
try {
var foo = it.nextNode();
} catch(e) {
ex = e;
}
++testCount;
is(ex.name, "InvalidStateError", "Should have thrown an exception!");
is(ex.code, DOMException.INVALID_STATE_ERR, "Should have thrown an exception!");
recurse = false;
}
return NodeFilter.FILTER_ACCEPT;
}
(function testNodeIterator() {
it = document.createNodeIterator(
document.getElementById("nodes"),
NodeFilter.SHOW_ELEMENT,
filter
);
while (it.nextNode());
})();
(function testTreeWalker() {
it = document.createTreeWalker(
document.getElementById("nodes"),
NodeFilter.SHOW_ELEMENT,
filter
);
while(it.nextNode());
it = document.createTreeWalker(
document.getElementById("nodes"),
NodeFilter.SHOW_ELEMENT,
filter
);
it.firstChild();
while(it.nextSibling());
it = document.createTreeWalker(
document.getElementById("nodes"),
NodeFilter.SHOW_ELEMENT,
filter
);
it.lastChild();
while(it.previousSibling());
})();
is(testCount, 4, "Should have tests 3 filter calls!");
</script>
</pre>
</body>
</html>