<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
'use strict';

promise_test((t) => {
  const p1 = navigator.keyboard.lock(["KeyA", "KeyB"]);
  const p2 = navigator.keyboard.lock(["KeyC", "KeyD"]);
  return Promise.all([promise_rejects_dom(t, "AbortError", p1), p2]);
}, '[Keyboard Lock] keyboard.lock twice in parallel');

</script>
