fenced-frame/deep-copy-config.https.html

<!DOCTYPE html>
<title>Test deep copying FencedFrameConfig objects</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/utils.js"></script>
<script src="/common/dispatcher/dispatcher.js"></script>
<script src="resources/utils.js"></script>
<script src="/common/get-host-info.sub.js"></script>

<body>
<script>
promise_test(async(t) => {
  const key = token();

  // Create a FencedFrameConfig from a FLEDGE auction, then deep copy it.
  let old_config = await generateURNFromFledge(
      "resources/embeddee.html", [key], [], true);
  assert_true(old_config instanceof FencedFrameConfig);
  let new_config = structuredClone(old_config);

  const fencedframe = attachFencedFrame(new_config);
  const response = await nextValueFromServer(key);
  assert_equals(response, "PASS",
      "The page should have loaded from the cloned config.");
}, 'A cloned config with a URN will navigate.');

promise_test(async(t) => {
  const key = token();

  // Create a FencedFrameConfig from a FLEDGE auction, then deep copy it.
  let old_config = new FencedFrameConfig(generateURL(
      "resources/embeddee.html", [key]));
  assert_true(old_config instanceof FencedFrameConfig);
  let new_config = structuredClone(old_config);

  const fencedframe = attachFencedFrame(new_config);
  const response = await nextValueFromServer(key);
  assert_equals(response, "PASS",
      "The page should have loaded from the cloned config.");
}, 'A cloned config with a URL will navigate.');

promise_test(async(t) => {
  const key = token();
  const fenced_url = generateURL("resources/embeddee.html", [key]);

  // Create a fenced frame once the config comes in through postMessage.
  window.addEventListener(
    "message",
    (event) => {
      attachFencedFrame(event.data);
    },
    false,
  );

  // Create an iframe that creates a FencedFrameConfig
  const frame = await attachIFrameContext(
      {origin: get_host_info().HTTPS_REMOTE_ORIGIN});
  await frame.execute(async (fenced_url) => {
    const config = await generateURNFromFledge(fenced_url, [], [], true);
    window.parent.postMessage(config, "*");
  }, [fenced_url]);

  const response = await nextValueFromServer(key);
  assert_equals(response, "PASS",
      "The page should have loaded from the postMessage'd config.");
}, 'A config received through window.postMessage will navigate.');

promise_test(async(t) => {
  // Create a FencedFrameConfig from a FLEDGE auction.
  let config = await generateURNFromFledge(
      "resources/embeddee.html", [], [], true);
  assert_true(config instanceof FencedFrameConfig);

  assert_throws_dom("DataCloneError", () => {
    history.pushState(config, "", location.href);
  }, "The write should fail for a FencedFrameConfig.");
}, 'A FencedFrameConfig cannot be written to storage.');

promise_test(async(t) => {
  const key = token();

  // Create a fenced frame once the config comes in through postMessage.
  window.addEventListener(
    "message",
    (event) => {
      attachFencedFrame(event.data);
    },
    false,
  );

  // The pop-up will generate a FencedFrameConfig from a FLEDGE auction, and
  // then pass it back into this page through postMessage(). Since config
  // mappings are only valid within the same frame tree, this page will not be
  // able to navigate a fenced frame to the config.
  window.open(generateURL("resources/postmessage-config.html", [key]), "foo");

  // Set up a timeout to ensure that there's enough time for any messages to be
  // sent from a fenced frame if it loads.
  const timeout = new Promise(resolve => t.step_timeout(resolve, 1000));
  const result = await Promise.race([nextValueFromServer(key), timeout]);
  assert_true(typeof result === "undefined",
      "The fenced frame should not have loaded.");
}, 'A FencedFrameConfig sent to a context that does not support it gracefully' +
   ' fails to load.');

</script>
</body>
</html>