test_bug536895.html

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<!DOCTYPE HTML>

<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=536895

-->

<head>

  <title>Test for Bug 536895</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=536895">Mozilla Bug 536895</a>

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

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

<textarea id="t"></textarea>

<input id="i" type="text">

<input id="p" type="password">

</div>

<pre id="test">

<script type="application/javascript">

/** Test for Bug 536895 **/

function checkNegativeMaxLengthException(element)

  caught = false;

  try {

    element.setAttribute('maxLength', -10);

  } catch(e) {

    caught = true;

  ok(!caught, "Setting maxLength attribute to a negative value shouldn't throw an exception");

  caught = false;

  try {

    element.maxLength = -20;

  } catch(e) {

    is(e.name, "IndexSizeError", "Should be an IndexSizeError exception");

    caught = true;

  ok(caught, "Setting negative maxLength from the DOM should throw an exception");

  is(element.getAttribute('maxLength'), "-10", "When the exception is raised, the maxLength attribute shouldn't change");

/* TODO: correct behavior may be checked for email, telephone, url and search input types */

checkNegativeMaxLengthException(document.getElementById('t'));

checkNegativeMaxLengthException(document.getElementById('i'));

checkNegativeMaxLengthException(document.getElementById('p'));

</script>

</pre>

</body>

</html>