chromium/third_party/blink/web_tests/external/wpt/fedcm/fedcm-pending-call-rejected.https.html

<!DOCTYPE html>
<title>Federated Credential Management API network request tests.</title>
<link rel="help" href="https://fedidcg.github.io/FedCM">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>

<script type="module">
import {request_options_with_mediation_required,
        alt_request_options_with_mediation_required,
        fedcm_test,
        fedcm_get_and_select_first_account} from './support/fedcm-helper.sub.js';

fedcm_test(async t => {
  const first = fedcm_get_and_select_first_account(t, request_options_with_mediation_required());
  const second = navigator.credentials.get(alt_request_options_with_mediation_required());

  // We have to call promise_rejects_dom here, because if we call it after
  // the promise gets rejected, the unhandled rejection event handler is called
  // and fails the test even if we handle the rejection later.
  const rej = promise_rejects_dom(t, 'NotAllowedError', second);

  const first_cred = await first;
  assert_equals(first_cred.token, "token");

  return rej;
}, "When there's a pending request, a second `get` call should be rejected.");
</script>