test_bug611182.html

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<!DOCTYPE HTML>

<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=611182

-->

<head>

  <title>Test for Bug 611182</title>

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

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

  <script src="/tests/SimpleTest/WindowSnapshot.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=611182">Mozilla Bug 611182</a>

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

<div id="content">

  <iframe></iframe>

  <iframe id="ref" src="./file_bug611182.html"></iframe>

</div>

<pre id="test">

<script type="application/javascript">

/** Test for Bug 611182 **/

SimpleTest.waitForExplicitFinish();

SimpleTest.waitForFocus(function() {

  var iframe = document.querySelector("iframe");

  var refElem = document.querySelector("#ref");

  var ref = snapshotWindow(refElem.contentWindow, false);

  function findTextNode(doc) {

    var body = doc.documentElement;

    var result = findTextNodeWorker(body);

    ok(result, "Failed to find the text node");

    return result;

  function findTextNodeWorker(root) {

    if (root.isContentEditable) {

      root.focus();

    for (var i = 0; i < root.childNodes.length; ++i) {

      var node = root.childNodes[i];

      if (node.nodeType == node.TEXT_NODE &&

          node.nodeValue == "fooz bar") {

        return node;

      if (node.nodeType == node.ELEMENT_NODE) {

        node = findTextNodeWorker(node);

        if (node) {

          return node;

    return null;

  function testBackspace(src, callback) {

    ok(true, "Testing " + src);

    iframe.addEventListener("load", function() {

      var doc = iframe.contentDocument;

      var win = iframe.contentWindow;

      doc.body.setAttribute("spellcheck", "false");

      iframe.focus();

      var textNode = findTextNode(doc);

      var sel = win.getSelection();

      sel.collapse(textNode, 4);

      synthesizeKey("KEY_Backspace");

      is(textNode.textContent, "foo bar", "Backspace should work correctly");

      var snapshot = snapshotWindow(win, false);

      ok(compareSnapshots(snapshot, ref, true)[0],

         "No padding <br> element should exist in the document");

      callback();

    }, {once: true});

    iframe.src = src;

  var totalTests = 0;

  var currentTest = 0;

  function runAllTests() {

    if (currentTest == totalTests) {

      SimpleTest.finish();

      return;

    testBackspace("file_bug611182.sjs?" + currentTest, runAllTests);

    currentTest++;

  // query total number of tests to be run from the server and

  // start running all tests.

  var myXHR = new XMLHttpRequest();

  myXHR.open("GET", "file_bug611182.sjs?queryTotalTests");

  myXHR.onload = function() {

    totalTests = myXHR.responseText;

    runAllTests();

};

  myXHR.send();

});

</script>

</pre>

</body>

</html>