LayoutTests/fast/forms/input-appearance-spinbutton-up.html

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<html>
<head>
<style>
</style>
</head>
<body>
<p>Test appearances of outer-spin-button with its up button highlighted.</p>
<div id=console></div>
<input type=number style="font-size: 18px;" id=number value=0>

<script>
onload = async () => {
    testRunner?.waitUntilDone();
    if (window.eventSender) {
        var input = document.getElementById('number');
        await eventSender.asyncMouseMoveTo(input.offsetLeft + input.offsetWidth - 8, input.offsetTop + 6);
        await eventSender.asyncMouseDown();
    } else {
        document.getElementById('console').innerHTML = '<p>Manual test: Press the primary button of the pointing device on the upper button.  Check if the upper button is correctly highlighted.</p>';
    }
    testRunner?.notifyDone();
}
</script>
</body>
</html>