payment-allowed-by-container-policy.html

<!DOCTYPE html>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="resources/helper.js"></script>
<iframe allow="payment"></iframe>
<iframe allow="payment" allowpaymentrequest></iframe>
<script>
var srcs = [
  "resources/feature-policy-payment.html",
  "http://localhost:8000/feature-policy/resources/feature-policy-payment.html"
];

function loadFrame(iframe, src) {
  var allowpaymentrequest = iframe.hasAttribute('allowpaymentrequest');
  promise_test(function() {
    iframe.src = src;
    return new Promise(function(resolve, reject) {
      window.addEventListener('message', function(e) {
        resolve(e.data);
      }, { once: true });
    }).then(function(data) {
      assert_true(data.enabled, 'Paymentrequest():');
    });
  }, 'Paymentrequest enabled by container policy on URL: ' + src +
  ' with allowpaymentrequest = ' + allowpaymentrequest);
}

window.onload = function() {
  loadIframes(srcs);
}
</script>

chromium/third_party/blink/web_tests/http/tests/feature-policy/payment-allowed-by-container-policy.html