test_bug367781.html

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<!DOCTYPE HTML>

<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=367781

-->

<head>

  <title>Test for Bug 367781</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=367781">Mozilla Bug 367781</a>

<p id="display"></p>

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

</div>

<pre id="test">

<script class="testbody" type="text/javascript">

/** Test for Bug  **/

var eventCounter = 0;

function handler(e) {

  if (e.type == "DOMNodeInserted")  {

    ++eventCounter;

function doTest() {

  var i1 = document.getElementById('i1');

  var i2 = document.getElementById('i2');

  var pre = i1.contentDocument.getElementsByTagName("pre")[0];

  pre.addEventListener("DOMNodeInserted", handler);

  pre.textContent = pre.textContent + pre.textContent;

  ok(eventCounter == 1, "DOMNodeInserted should have been dispatched");

  pre.remove();

  i2.contentDocument.adoptNode(pre);

  i2.contentDocument.body.appendChild(pre);

  ok(eventCounter == 2, "DOMNodeInserted should have been dispatched in the new document");

  SimpleTest.finish();

SimpleTest.waitForExplicitFinish();

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

</script>

</pre>

<iframe id="i1" srcdoc="&lt;html&gt;&lt;body&gt;&lt;pre&gt;Foobar&lt;/pre&gt;&lt;/body&gt;&lt;/html&gt;"></iframe>

<iframe id="i2" srcdoc="&lt;html&gt;&lt;body&gt;&lt;/body&gt;&lt;/html&gt;"></iframe>

</body>

</html>