chromium/third_party/blink/web_tests/fast/events/focus-event-source-device-from-keyboard.html

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<script src="../../resources/js-test.js"></script>
<body>
<script src="script-tests/focus-event-input-device.js"></script>
<script type="text/javascript">
description("Test that focus events from keyboard taps should have a sourceCapabilities and its firesTouchEvents should be false.");
function sendKeyboardTabEvent() {
    if (window.eventSender) {
        eventSender.keyDown('\t');
    }
}
runFocusTestWithEventGenerator(sendKeyboardTabEvent, "false");
</script>
</body>