test_bug536891.html

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<!DOCTYPE HTML>

<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=536891

-->

<head>

  <title>Test for Bug 536891</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=536891">Mozilla Bug 536891</a>

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

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

<textarea id="t" maxlength="-2" minlength="-2"></textarea>

<input id="i" type="text" maxlength="-2" minlength="-2">

<input id="p" type="password" maxlength="-2" minlength="-2">

</div>

<pre id="test">

<script type="application/javascript">

/** Test for Bug 536891 **/

function checkNegativeMinMaxLength(element)

  for(let type of ["min", "max"]) {

    /* value is set to -2 initially in the document, see above */

    is(element[type + "Length"], -1, "negative " + type + "Length should be considered invalid and represented as -1");

    // changing the property to an negative value should throw (see bug 536895).

    for(let value of [-15, -2147483648]) { // PR_INT32_MIN

      let threw = false;

      try {

        element[type + "Length"] = value;

      } catch(e) {

        threw = true;

      is(threw, true, "setting " + type + "Length property to " + value + " should throw");

    element[type + "Length"] = "non-numerical value";

    is(element[type + "Length"], 0, "setting " + type + "Length property to a non-numerical value should set it to zero");

    element.setAttribute(type + 'Length', -15);

    is(element[type + "Length"], -1, "negative " + type + "Length is not processed correctly when set dynamically");

    is(element.getAttribute(type + 'Length'), "-15", type + "Length attribute doesn't return the correct value");

    element.setAttribute(type + 'Length', 0);

    is(element[type + "Length"], 0, "zero " + type + "Length is not processed correctly");

    element.setAttribute(type + 'Length', 2147483647); // PR_INT32_MAX

    is(element[type + "Length"], 2147483647, "negative " + type + "Length is not processed correctly");

    element.setAttribute(type + 'Length', -2147483648);  // PR_INT32_MIN

    is(element[type + "Length"], -1, "negative " + type + "Length is not processed correctly");

    element.setAttribute(type + 'Length', 'non-numerical-value');

    is(element[type + "Length"], -1, "non-numerical value should be considered invalid and represented as -1");

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

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

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

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

</script>

</pre>

</body>

</html>