src/third_party/WebKit/LayoutTests/http/tests/serviceworker/postmessage.html

   1 <!DOCTYPE html>
   2 <title>Service Worker: postMessage</title>
   3 <script src="../resources/testharness.js"></script>
   4 <script src="../resources/testharnessreport.js"></script>
   5 <script src="resources/test-helpers.js"></script>
   6 <script>
   7 async_test(function(t) {
   8     var scope = 'resources/blank.html';
   9     var registration;
  10     var worker;
  11     service_worker_unregister_and_register(
  12         t, 'resources/postmessage-worker.js', scope)
  13       .then(function(r) {
  14           registration = r;
  15           return get_newest_worker(registration);
  16         })
  17       .then(function(sw) {
  18           worker = sw;
  19           var messageChannel = new MessageChannel();
  20           messageChannel.port1.onmessage = t.step_func(onMessage);
  21           sw.postMessage({port: messageChannel.port2}, [messageChannel.port2]);
  22           sw.postMessage({value: 1});
  23           sw.postMessage({value: 2});
  24           sw.postMessage({done: true});
  25         })
  26       .catch(unreached_rejection(t));
  27
  28     var result = [];
  29     var expected = [
  30       'Acking value: 1',
  31       'Acking value: 2',
  32     ];
  33
  34     function onMessage(e) {
  35       var message = e.data;
  36       if (message === 'quit') {
  37         assert_array_equals(result, expected,
  38                             'Worker should post back expected values.');
  39         postMessageToRedundantWorker();
  40       } else {
  41         result.push(message);
  42       }
  43     };
  44
  45     function postMessageToRedundantWorker() {
  46       registration.unregister(scope)
  47         .then(function() {
  48             return wait_for_state(t, worker, 'redundant');
  49           })
  50         .then(function() {
  51             assert_equals(worker.state, 'redundant');
  52             assert_throws(
  53               {name:'InvalidStateError'},
  54               function() { worker.postMessage(''); },
  55               'Calling postMessage on a redundant ServiceWorker should ' +
  56                   'throw InvalidStateError.');
  57             t.done();
  58           })
  59         .catch(unreached_rejection(t));
  60     }
  61   }, 'postMessage to a ServiceWorker (and back via MessagePort)');
  62 </script>