chromium/third_party/blink/web_tests/fast/forms/text/input-text-self-emptying-click.html

<input type="text" onfocus="this.value=''" value="click to edit">
<p>Tests clicking on an input element that has a value that self-destructs. If the test succeeds, there should be a blinking caret in the text field.</p>
<script>
if (window.eventSender) {
    eventSender.mouseMoveTo(15, 15);
    eventSender.mouseDown();
    eventSender.mouseUp();
}
</script>