gecko-dev/dom/html/test/test_bug839371.html

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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=839371
-->
<head>
<title>Test for Bug 839371</title>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="application/javascript" src="reflect.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=839371">Mozilla Bug 839371</a>
<p id="display"></p>
<div id="content" style="display: none">
<div itemscope>
<data id="d1" itemprop="product-id" value="9678AOU879">The Instigator 2000</data>
</div>
</div>
<pre id="test">
<script type="application/javascript">
/** Test for Bug 839371 **/
var d1 = document.getElementById("d1"),
d2 = document.createElement("data");
// .value IDL
is(d1.value, "9678AOU879", "value property reflects content attribute");
d1.value = "123";
is(d1.value, "123", "value property can be set via setter");
// .itemValue getter for <data>'s microdata
var data = document.getItems()[0];
is(data.properties["product-id"][0].itemValue, "123", "itemValue getter reflects value attribute");
// .itemValue setter uses value
data.properties["product-id"][0].itemValue = "456";
is(data.properties["product-id"][0].value, "456", "setting itemValue updates value");
is(data.properties["product-id"][0].itemValue, "456", "setting itemValue updates itemValue");
// .value reflects value attribute
reflectString({
element: d2,
attribute: "value"
});
</script>
</pre>
</body>
</html>