chromium/third_party/blink/web_tests/fast/forms/ValidityState-rangeUnderflow.html

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<html>
<head>
<script src="../../resources/js-test.js"></script>
</head>
<body>
<p id="description"></p>
<div id="console"></div>
<script>
description('This test aims to check for rangeUnderflow flag with input fields');

var input = document.createElement('input');

function checkNotUnderflow(value, min, disabled)
{
    input.value = value;
    input.min = min;
    input.disabled = !!disabled;
    var underflow = input.validity.rangeUnderflow;
    var resultText = 'The value "' + input.value + '" ' +
        (underflow ? 'underflows' : 'doesn\'t underflow') +
        ' the minimum value "' + input.min + '"' + (disabled ? ' when disabled.' : '.');
    if (underflow)
        testFailed(resultText);
    else
        testPassed(resultText);
}

// ----------------------------------------------------------------
debug('Type=text');
input.type = 'text';  // No underflow for type=text.
checkNotUnderflow('99', '100');
</script>
</body>
</html>