test_anonymousContent_insert.html

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<!DOCTYPE HTML>

<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=1020244

-->

<meta charset="utf-8">

<title>Test for Bug 1020244 - Insert content using the AnonymousContent API, several times, and don't remove it</title>

<script src="/tests/SimpleTest/SimpleTest.js"></script>

<link rel="stylesheet" href="/tests/SimpleTest/test.css"/>

<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1020244">Mozilla Bug 1020244</a>

<div>

  <div id="id" class="test">text content</div>

</div>

  <script>

  const INSERTED_NB = 5;

  // Insert the same content several times

  let chromeDocument = SpecialPowers.wrap(document);

  let testElement = document.querySelector("div");

  let anonymousContents = [];

  for (let i = 0; i < INSERTED_NB; i ++) {

    let content = chromeDocument.insertAnonymousContent();

    content.root.appendChild(testElement.cloneNode(true));

    // Adding an expando pointing to the document to make sure this doesn't

    // cause leaks.

    content.dummyExpando = testElement.ownerDocument;

    anonymousContents.push(content);

  // Make sure that modifying one of the inserted elements does not modify the

  // other ones.

  anonymousContents[0].root.getElementById("id").className = "updated";

  for (let i = 1; i < INSERTED_NB; i ++) {

is(

      anonymousContents[i].root.getElementById("id").className,

      "test",

      "Element " + i + " didn't change when element 0 was changed"

);

  // Do not remove inserted elements on purpose to test for potential leaks too.

</script>