testing/web-platform/mozilla/tests/service-workers/service-worker/postmessage.https.html
author James Graham <james@hoppipolla.co.uk>
Thu, 25 Jun 2015 16:10:50 -0700
changeset 250330 a03152790896f9304cf6b79e48de91cc0388cc64
permissions -rw-r--r--
Bug 1120505 - Add Blink service-worker tests to local wpt tests, rs=Ms2ger

<!DOCTYPE html>
<title>Service Worker: postMessage</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/test-helpers.sub.js"></script>
<script>
async_test(function(t) {
    var scope = 'resources/blank.html';
    var registration;
    var worker;
    service_worker_unregister_and_register(
        t, 'resources/postmessage-worker.js', scope)
      .then(function(r) {
          registration = r;
          worker = registration.installing;
          var messageChannel = new MessageChannel();
          messageChannel.port1.onmessage = t.step_func(onMessage);
          worker.postMessage({port: messageChannel.port2},
                              [messageChannel.port2]);
          worker.postMessage({value: 1});
          worker.postMessage({value: 2});
          worker.postMessage({done: true});
        })
      .catch(unreached_rejection(t));

    var result = [];
    var expected = [
      'Acking value: 1',
      'Acking value: 2',
    ];

    function onMessage(e) {
      var message = e.data;
      if (message === 'quit') {
        assert_array_equals(result, expected,
                            'Worker should post back expected values.');
        postMessageToRedundantWorker();
      } else {
        result.push(message);
      }
    };

    function postMessageToRedundantWorker() {
      registration.unregister(scope)
        .then(function() {
            return wait_for_state(t, worker, 'redundant');
          })
        .then(function() {
            assert_equals(worker.state, 'redundant');
            assert_throws(
              {name:'InvalidStateError'},
              function() { worker.postMessage(''); },
              'Calling postMessage on a redundant ServiceWorker should ' +
                  'throw InvalidStateError.');
            t.done();
          })
        .catch(unreached_rejection(t));
    }
  }, 'postMessage to a ServiceWorker (and back via MessagePort)');
</script>