keyboard-lock/navigator-keyboard-lock-two-sequential-requests.https.html - external/github.com/web-platform-tests/wpt - Git at Google

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

 promise_test(() => {
   return navigator.keyboard.lock(["KeyA", "KeyB"])
       .then(() => {
         return navigator.keyboard.lock(["KeyC", "KeyD"]);
       });
 }, '[Keyboard Lock] keyboard.lock called twice sequentially');

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

	promise_test(() => {
	return navigator.keyboard.lock(["KeyA", "KeyB"])
	.then(() => {
	return navigator.keyboard.lock(["KeyC", "KeyD"]);
	});
	}, '[Keyboard Lock] keyboard.lock called twice sequentially');

	</script>