<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/utils.js"></script>
<script src="/common/get-host-info.sub.js"></script>
<script src="resources/utils.js"></script>
<title>Test installing a config with empty url to a navigated fenced frame
  unloads the original document</title>

<body>

<script>
promise_test(async () => {
  const fenced_frame_loaded_key = token();

  // Create a fenced frame and install a config constructed with an empty url.
  const fenced_frame = document.createElement('fencedframe');
  document.body.append(fenced_frame);

  // Specify the fenced frame's src attribute to an url.
  const url = generateURL('resources/fenced-frame-loaded.html',
                          [fenced_frame_loaded_key]);
  fenced_frame.config = new FencedFrameConfig(url);

  // The fenced frame should navigate to the src url.
  const load_expected = "fenced frame loaded";
  const load_actual = await nextValueFromServer(fenced_frame_loaded_key);
  assert_equals(load_actual, load_expected,
    "Fenced frame successfully loaded by specifying its src attribute.");

  // Create a config with an empty url.
  const empty_url_config = new FencedFrameConfig('');
  fenced_frame.config = empty_url_config;

  // Installing a config with an empty url to the fenced frame should unload the
  // original document.
  const server_value = await readValueFromServer(fenced_frame_loaded_key);
  assert_false(server_value.status);

}, 'Installing a config with empty url to a navigated fenced unloads ',
  'the original document.');
</script>

</body>
