gecko-dev/dom/base/test/test_bug698384.html

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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=698384
-->
<head>
<title>Test for Bug 698384</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/EventUtils.js"
type="text/javascript"></script>
<link rel="stylesheet" type="text/css"
href="/tests/SimpleTest/test.css" />
</head>
<body onload="runTests();">
<a target="_blank"
href="https://bugzilla.mozilla.org/show_bug.cgi?id=698384">
Mozilla Bug 698384</a>
<p id="display"></p>
<div id="content" style="display: none"></div>
<pre id="test">
<script type="text/javascript">
/*
Checks to see if default parameter handling is correct when 0, 1
or 2 parameters are passed.
If one is only passed, aFilter should default to null
If none are passed, aFilter should be null and aWhatToShow should
be NodeFilter.SHOW_ALL
*/
SimpleTest.waitForExplicitFinish();
var content = $('content'),
ni;
content.innerHTML = ('<span id="A"><\/span><span id="B"><\/span>'
+ '<span id="C"><\/span>');
function runTests() {
// Test NodeIterator when no optional arguments are given
ni = document.createNodeIterator(content);
is(ni.whatToShow, NodeFilter.SHOW_ALL, "whatToShow should be " +
"NodeFilter.SHOW_ALL when both " +
" optionals are not given");
is(ni.filter, null, "filter should be defaulted to null when both " +
" optionals are not given");
// Test NodeIterator when first optional is passed
ni = document.createNodeIterator(content, NodeFilter.SHOW_ELEMENT);
is(ni.filter, null, "filter should be defaulted to null when only " +
" first argument is passed");
is(ni.whatToShow, NodeFilter.SHOW_ELEMENT, "whatToShow should " +
"properly be set to NodeFilter.SHOW_ELEMENT when whatToShow is " +
"provided and filter is not");
SimpleTest.finish();
}
</script>
</pre>
</body>
</html>