chromium/third_party/blink/web_tests/external/wpt/permissions-policy/reporting/encrypted-media-reporting.https.html

<!DOCTYPE html>
<html>
  <head>
    <script src='/resources/testharness.js'></script>
    <script src='/resources/testharnessreport.js'></script>
  </head>
  <body>
    <script>
var check_report_format = (reports, observer) => {
  let report = reports[0];
  assert_equals(report.type, "permissions-policy-violation");
  assert_equals(report.url, document.location.href);
  assert_equals(report.body.featureId, "encrypted-media");
  assert_equals(report.body.disposition, "enforce");
  assert_equals(report.body.sourceFile, document.location.href);
  assert_equals(typeof report.body.lineNumber, "number");
  assert_equals(typeof report.body.columnNumber, "number");
};

promise_test(async t => {
  const report = new Promise(resolve => {
    new ReportingObserver((reports, observer) => resolve([reports, observer]),
                          {types: ['permissions-policy-violation']}).observe();
  });
  await promise_rejects_dom(t, "SecurityError",
    navigator.requestMediaKeySystemAccess("org.w3.clearkey",
      [{
        initDataTypes: ["webm"],
        videoCapabilities: [{contentType: 'video/webm;codecs="vp8"'}],
      }]),
      "requestMediaKeySystemAccess() should not be allowed in this document.");
  const [reports, observer] = await report;
  check_report_format(reports, observer);
}, "Encrypted Media report format");
    </script>
  </body>
</html>