test_bug726364.html

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<!DOCTYPE HTML>

<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=726364

-->

<head>

  <meta charset="utf-8">

  <title>Test for Bug 726364</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=726364">Mozilla Bug 726364</a>

<p id="display"><div id="v">ABC</div></p>

<div id="content" style="display: none">

</div>

<pre id="test">

<script type="application/javascript">

/** Test for Bug 726364 **/

function boom()

  var v = document.getElementById("v");

  var t = v.firstChild;

  is(v.childNodes.length,1, "child count");

  var f = function(event) {

    window.removeEventListener("DOMCharacterDataModified", f, true);

    is(v.childNodes[0],t, "first child is the same");

    is(v.childNodes.length,2, "child count");

    r.setEnd(v, 0);

    SimpleTest.finish();

};

  window.addEventListener("DOMCharacterDataModified", f, true);

  var r = document.createRange();

  r.setStart(t, 2);

  t.splitText(1);

SimpleTest.waitForExplicitFinish();

addLoadEvent(() => SpecialPowers.pushPrefEnv({"set": [["dom.mutation_events.enabled", true]]}, boom));

</script>

</pre>

</body>

</html>