LayoutTests/fast/forms/input-text-option-delete.html

<input id="input" type="text" value="word another">
<p>Tests option-deleting a word. If the test succeeds, the word "word" should end up with a space after it.</p>
<script>
var input = document.getElementById("input");
input.focus();
input.setSelectionRange(12, 12);
if (window.eventSender) {
    eventSender.keyDown(String.fromCharCode(127), ["altKey"]);
}
</script>