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           worker = registration.installing;
  16           var messageChannel = new MessageChannel();
  17           messageChannel.port1.onmessage = t.step_func(onMessage);
  18           worker.postMessage({port: messageChannel.port2},
  19                               [messageChannel.port2]);
  20           worker.postMessage({value: 1});
  21           worker.postMessage({value: 2});
  22           worker.postMessage({done: true});
  23         })
  24       .catch(unreached_rejection(t));
  25
  26     var result = [];
  27     var expected = [
  28       'Acking value: 1',
  29       'Acking value: 2',
  30     ];
  31
  32     function onMessage(e) {
  33       var message = e.data;
  34       if (message === 'quit') {
  35         assert_array_equals(result, expected,
  36                             'Worker should post back expected values.');
  37         postMessageToRedundantWorker();
  38       } else {
  39         result.push(message);
  40       }
  41     };
  42
  43     function postMessageToRedundantWorker() {
  44       registration.unregister(scope)
  45         .then(function() {
  46             return wait_for_state(t, worker, 'redundant');
  47           })
  48         .then(function() {
  49             assert_equals(worker.state, 'redundant');
  50             assert_throws(
  51               {name:'InvalidStateError'},
  52               function() { worker.postMessage(''); },
  53               'Calling postMessage on a redundant ServiceWorker should ' +
  54                   'throw InvalidStateError.');
  55             t.done();
  56           })
  57         .catch(unreached_rejection(t));
  58     }
  59   }, 'postMessage to a ServiceWorker (and back via MessagePort)');
  60 </script>