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

   1 <!DOCTYPE html>
   2 <title>ServiceWorkerGlobalScope: 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
   8 promise_test(function(t) {
   9     var script = 'resources/postmessage-loopback-worker.js';
  10     var scope = 'resources/scope/postmessage-loopback';
  11     var registration;
  12
  13     return service_worker_unregister_and_register(t, script, scope)
  14       .then(function(r) {
  15           registration = r;
  16           return wait_for_state(t, registration.installing, 'activated');
  17         })
  18       .then(function() {
  19           var channel = new MessageChannel();
  20           var saw_message = new Promise(function(resolve) {
  21               channel.port1.onmessage = function(event) {
  22                 resolve(event.data);
  23               };
  24             });
  25           registration.active.postMessage({port: channel.port2},
  26                                           [channel.port2]);
  27           return saw_message;
  28         })
  29       .then(function(result) {
  30           assert_equals(result, 'OK');
  31           return service_worker_unregister_and_done(t, scope);
  32         });
  33   }, 'Post loopback messages');
  34
  35 promise_test(function(t) {
  36     var script1 = 'resources/postmessage-ping-worker.js';
  37     var script2 = 'resources/postmessage-pong-worker.js';
  38     var scope = 'resources/scope/postmessage-pingpong';
  39     var registration;
  40     var frame;
  41
  42     return service_worker_unregister_and_register(t, script1, scope)
  43       .then(function(r) {
  44           registration = r;
  45           return wait_for_state(t, registration.installing, 'activated');
  46         })
  47       .then(function() {
  48           // A controlled frame is necessary for keeping a waiting worker.
  49           return with_iframe(scope);
  50         })
  51       .then(function(f) {
  52           frame = f;
  53           return navigator.serviceWorker.register(script2, {scope: scope});
  54         })
  55       .then(function(r) {
  56           return wait_for_state(t, r.installing, 'installed');
  57         })
  58       .then(function() {
  59           var channel = new MessageChannel();
  60           var saw_message = new Promise(function(resolve) {
  61               channel.port1.onmessage = function(event) {
  62                 resolve(event.data);
  63               };
  64             });
  65           registration.active.postMessage({port: channel.port2},
  66                                           [channel.port2]);
  67           return saw_message;
  68         })
  69       .then(function(result) {
  70           assert_equals(result, 'OK');
  71           frame.remove();
  72           return service_worker_unregister_and_done(t, scope);
  73         });
  74   }, 'Post messages among service workers');
  75
  76 </script>