test_bug850043.html

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<!DOCTYPE html>

<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=850043

-->

<head>

  <title>Test for Bug 850043</title>

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

  <script src="/tests/SimpleTest/EventUtils.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=850043">Mozilla Bug 850043</a>

<div id="display">

<textarea id="textarea">b&#x9080;&#xe010f;&#x8fba;&#xe0101;</textarea>

<div contenteditable id="edit">b&#x9080;&#xe010f;&#x8fba;&#xe0101;</div>

</div>

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

</div>

<pre id="test">

</pre>

<script>

SimpleTest.waitForExplicitFinish();

SimpleTest.waitForFocus(() => {

  let fm = SpecialPowers.Services.focus;

  let element = document.getElementById("textarea");

  element.setSelectionRange(element.value.length, element.value.length);

  element.focus();

  is(SpecialPowers.unwrap(fm.focusedElement), element, "failed to move focus");

  synthesizeKey("KEY_End");

  sendString("a");

  is(element.value, "b\u{9080}\u{e010f}\u{8fba}\u{e0101}a", "a isn't last character");

  synthesizeKey("KEY_Backspace", {repeat: 3});

  is(element.value, "b", "cannot remove all IVS characters");

  element = document.getElementById("edit");

  element.focus();

  is(SpecialPowers.unwrap(fm.focusedElement), element, "failed to move focus");

  let sel = window.getSelection();

  sel.collapse(element.childNodes[0], element.textContent.length);

  sendString("a");

  is(element.textContent, "b\u{9080}\u{e010f}\u{8fba}\u{e0101}a", "a isn't last character");

  synthesizeKey("KEY_Backspace", {repeat: 3});

  is(element.textContent, "b", "cannot remove all IVS characters");

  SimpleTest.finish();

});

</script>

</body>

</html>