test_bug332636.html

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<!DOCTYPE HTML>

<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=332636

-->

<head>

  <title>Test for Bug 332636</title>

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

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

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

</head>

<body>

<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=332636">Mozilla Bug 332636</a>

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

<div id="content">

  <div id="edit0" contenteditable="true">axb</div><!-- reference: plane 0 base character -->

  <div id="edit1" contenteditable="true">a&#x0308;b</div><!-- reference: plane 0 diacritic -->

  <div id="edit2" contenteditable="true">a&#x10400;b</div><!-- plane 1 base character -->

  <div id="edit3" contenteditable="true">a&#x10a0f;b</div><!-- plane 1 diacritic -->

  <div id="edit0b" contenteditable="true">axb</div><!-- reference: plane 0 base character -->

  <div id="edit1b" contenteditable="true">a&#x0308;b</div><!-- reference: plane 0 diacritic -->

  <div id="edit2b" contenteditable="true">a&#x10400;b</div><!-- plane 1 base character -->

  <div id="edit3b" contenteditable="true">a&#x10a0f;b</div><!-- plane 1 diacritic -->

</div>

<pre id="test">

<script type="application/javascript">

/** Test for Bug 332636 **/

SimpleTest.waitForExplicitFinish();

addLoadEvent(runTest);

function test(edit) {

  edit.focus();

  var sel = window.getSelection();

  sel.collapse(edit.childNodes[0], edit.textContent.length - 1);

  synthesizeKey("KEY_Backspace");

  is(edit.textContent, "ab", "The backspace key should delete the UTF-16 surrogate pair correctly");

function testWithMove(edit, offset) {

  edit.focus();

  var sel = window.getSelection();

  sel.collapse(edit.childNodes[0], 0);

  var i;

  for (i = 0; i < offset; ++i) {

    synthesizeKey("KEY_ArrowRight");

    synthesizeKey("KEY_ArrowLeft");

    synthesizeKey("KEY_ArrowRight");

  synthesizeKey("KEY_Backspace");

  is(edit.textContent, "ab", "The backspace key should delete the UTF-16 surrogate pair correctly");

function runTest() {

  /* test backspace-deletion of the middle character */

  test(document.getElementById("edit0"));

  test(document.getElementById("edit1"));

  test(document.getElementById("edit2"));

  test(document.getElementById("edit3"));

  /* extra tests with the use of RIGHT and LEFT to get to the right place */

  testWithMove(document.getElementById("edit0b"), 2);

  testWithMove(document.getElementById("edit1b"), 1);

  testWithMove(document.getElementById("edit2b"), 2);

  testWithMove(document.getElementById("edit3b"), 1);

  SimpleTest.finish();

</script>

</pre>

</body>

</html>