<!doctype html>
<title>expected interface objects/constructors</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
async_test(t => {
  const expected = 'XMLHttpRequest WebSocket EventSource MessageChannel Worker'.split(' ');
  const supported = [];
  for (let i = 0; i < expected.length; ++i) {
  if (expected[i] in window)
     supported.push(expected[i]);
  }
  const worker = new SharedWorker('interface-objects.js');
  worker.port.start();
  worker.port.postMessage(supported);
  worker.port.onmessage = t.step_func_done(e => {
    assert_equals(e.data, 'These were missing: ');
  });
}, 'Test if interface objects exist in a shared worker');
</script>
