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Test Info:
- Manifest: dom/html/test/mochitest.toml
<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<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=535043">Mozilla Bug 535043</a>
<p id="display"></p>
<div id="content">
<textarea></textarea>
<textarea maxlength="-1"></textarea>
<textarea maxlength="0"></textarea>
<textarea maxlength="2"></textarea>
</div>
<pre id="test">
<script type="text/javascript">
function checkTextArea(textArea) {
textArea.value = '';
textArea.focus();
for (var j = 0; j < 3; j++) {
sendString("x");
}
var htmlMaxLength = textArea.getAttribute('maxlength');
var domMaxLength = textArea.maxLength;
if (htmlMaxLength == null) {
is(domMaxLength, -1,
'maxlength is unset but maxLength DOM attribute is not -1');
} else if (htmlMaxLength < 0) {
// Per the HTML5 spec, out-of-range values are supposed to translate to -1,
// not 0, but they don't?
is(domMaxLength, -1,
'maxlength is out of range but maxLength DOM attribute is not -1');
} else {
is(domMaxLength, parseInt(htmlMaxLength),
'maxlength in DOM does not match provided value');
}
if (textArea.maxLength == -1) {
is(textArea.value.length, 3,
'textarea with maxLength -1 should have no length limit');
} else {
is(textArea.value.length, textArea.maxLength, 'textarea has maxLength ' +
textArea.maxLength + ' but length ' + textArea.value.length );
}
}
SimpleTest.waitForFocus(function() {
var textAreas = document.getElementsByTagName('textarea');
for (var i = 0; i < textAreas.length; i++) {
checkTextArea(textAreas[i]);
}
textArea = textAreas[0];
testNums = [-42, -1, 0, 2];
for (var i = 0; i < testNums.length; i++) {
textArea.removeAttribute('maxlength');
var caught = false;
try {
textArea.maxLength = testNums[i];
} catch (e) {
caught = true;
}
if (testNums[i] < 0) {
ok(caught, 'Setting negative maxLength should throw exception');
} else {
ok(!caught, 'Setting nonnegative maxLength should not throw exception');
}
checkTextArea(textArea);
textArea.setAttribute('maxlength', testNums[i]);
checkTextArea(textArea);
}
SimpleTest.finish();
});
SimpleTest.waitForExplicitFinish();
</script>
</pre>
</body>
</html>