<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/utils.js"></script>
<script src="/common/utils.js"></script>
<title>history-length-outer-page-navigation-not-reflected-in-fenced</title>

<body>
<script>
const fenced_history_length_key = token();
const outer_page_ready_for_next_navigation_key = token();

async function runTest(embed_scope_reporting) {
  const kAssertionDesc =  "history.length Should never reflect the length " +
                          "of joint session history that occured outside " +
                          "of the fenced frame tree. history.length will " +
                          "always return 1."

  ////////////// BEGIN NAVIGATIONS
  // This block performs a sequence of 'kNavigationLimit' navigations in:
  // -- the outer page
  const kNavigationLimit = 5

  const url = new URL(location.href);

  // First, perform some real navigations as well as history.pushState to this
  // same page. Normally this would increase `history.length`.
  if (url.searchParams.get("navigationCount") == null)
    url.searchParams.append("navigationCount", 1);

  let navigationCount = parseInt(url.searchParams.get("navigationCount"));

  if (navigationCount <= kNavigationLimit) {
    url.searchParams.set('navigationCount', ++navigationCount);
    location.href = url;
    history.pushState({} , "");
    return;
  }
  ////////////// END

  // Append an iframe to the outer page for subsequent navigations within
  // the iframe
  const iframe = document.createElement('iframe');
  const embed_scope_iframe = "outer_page::iframe";
  iframe.src = generateURL("resources/history-length-outer-page-navigation-" +
      "not-reflected-in-fenced-inner.html",
      [fenced_history_length_key, outer_page_ready_for_next_navigation_key,
       embed_scope_iframe, null]);
  document.body.append(iframe);

  await nextValueFromServer(outer_page_ready_for_next_navigation_key);

  // Append a fenced frame to observe 'history.length' and report it back
  // to the outer page
  const embed_scope_fenced_frame = "outer_page::fenced_frame";
  attachFencedFrame(generateURL(
      "resources/history-length-outer-page-navigation-" +
      "not-reflected-in-fenced-inner.html",
      [fenced_history_length_key, outer_page_ready_for_next_navigation_key,
       embed_scope_fenced_frame, embed_scope_reporting])
  );

  // Wait for the 'embed_scope_reporting' to report 'history.length'
  let result = await nextValueFromServer(fenced_history_length_key);
  assert_equals(result, "PASS > " + " history.length: 1", kAssertionDesc);
}

promise_test(async () => {
  await runTest("outer_page::fenced_frame");
}, "history.length should not reflect navigations within outer page in " +
  "fenced frame");

promise_test(async () => {
  await runTest("outer_page::fenced_frame::iframe");
}, "history.length should not reflect navigations within outer page in " +
  "fenced frame nexted iframe");
</script>
</body>
