gecko-dev/dom/xbl/test/test_bug400705.xhtml

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<html xmlns="http://www.w3.org/1999/xhtml">
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=400705
-->
<head>
<title>Test for Bug 400705</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<bindings xmlns="http://www.mozilla.org/xbl">
<binding id="test">
<implementation>
<field name="a">XPCNativeWrapper.unwrap(window).countera++</field>
<field name="b">XPCNativeWrapper.unwrap(window).counterb++</field>
</implementation>
</binding>
</bindings>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=400705">Mozilla Bug 400705</a>
<p id="display" style="-moz-binding: url(#test)"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script class="testbody" type="text/javascript">
<![CDATA[
/** Test for Bug 400705 **/
SimpleTest.waitForExplicitFinish();
addLoadEvent(function() {
window.countera = 0;
window.counterb = 0;
var d = $("display");
// Control to make sure fields are lazy and all
d.a;
is(window.countera, 1, "Should have evaluated field");
d.remove();
is(window.counterb, 0, "Should not evaluate field on binding teardown");
SimpleTest.finish();
});
]]>
</script>
</pre>
</body>
</html>