chromium/third_party/blink/web_tests/fast/events/keydown-numlock-standard-location.html

<!DOCTYPE html>
<html>
<head>
<script src="../../resources/js-test.js"></script>
</head>
<body>
<script>
description("Checks that KeyboardEvent.location is DOM_KEY_LOCATION_STANDARD for NumLock key.");

var lastKeyboardEvent = null;
function recordKeyEvent(ev) {
    ev = ev || event;
    ev.keyCode = (ev.which || ev.keyCode);
    if (window.eventSender) {
        lastKeyboardEvent = ev;
    } else {
        debug('Type=' + ev.type + ',' +
              'keyCode=' + ev.keyCode + ',' +
              'ctrlKey=' + ev.ctrlKey + ',' +
              'shiftKey=' + ev.shiftKey + ',' +
              'altKey=' + ev.altKey + ',' +
              'metaKey=' + ev.metaKey + ',' +
              'location=' + ev.location);
    }
}

var textarea = document.createElement("textarea");
textarea.addEventListener("keydown", recordKeyEvent, false);
document.body.insertBefore(textarea, document.body.firstChild);
textarea.focus();

var VKEY_NUMLOCK = 0x90;

if (window.eventSender) {
    eventSender.keyDown("NumLock");
    shouldBeEqualToString("lastKeyboardEvent.type", "keydown");
    shouldBe("lastKeyboardEvent.keyCode", "VKEY_NUMLOCK");
    shouldBe("lastKeyboardEvent.location", "KeyboardEvent.DOM_KEY_LOCATION_STANDARD");
} else {
    debug("This test needs window.eventSender to run.");
}

</script>
</body>
</html>