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

   1 <!DOCTYPE html>
   2 <script src="../resources/testharness.js"></script>
   3 <script src="../resources/testharnessreport.js"></script>
   4 <script src="resources/test-helpers.js"></script>
   5 <body>
   6 <script>
   7 (function () {
   8     var t = async_test('Service Worker state property and "statechange" event');
   9     var currentState = 'test-is-starting';
  10     var scope = '/state/*';
  11
  12     service_worker_unregister_and_register(
  13         t, 'resources/worker-no-op.js', scope, onRegister);
  14
  15     function onRegister(sw) {
  16         sw.addEventListener('statechange', t.step_func(onStateChange(sw)));
  17         assert_in_array(sw.state, ['parsed', 'installing'],
  18                         'the service worker should be in a state up to ' +
  19                         '"installing".');
  20         checkStateTransition(sw.state);
  21     }
  22
  23     function checkStateTransition(newState) {
  24         switch (currentState) {
  25         case 'test-is-starting':
  26             break; // anything goes
  27         case 'parsed':
  28             assert_equals(newState, 'installing');
  29             break;
  30         case 'installing':
  31             assert_in_array(newState, ['installed', 'deactivated']);
  32             break;
  33         case 'installed':
  34             assert_in_array(newState, ['activating', 'deactivated']);
  35             break;
  36         case 'activating':
  37             assert_in_array(newState, ['active', 'deactivated']);
  38             break;
  39         case 'active':
  40             assert_equals(newState, 'deactivated');
  41             break;
  42         case 'deactivated':
  43             assert_unreached('a ServiceWorker should not transition out of ' +
  44                              'the "deactivated" state');
  45             break;
  46         default:
  47             assert_unreached('should not transition into unknown state "' +
  48                              newState + '"');
  49             break;
  50         }
  51         currentState = newState;
  52     }
  53
  54     function onStateChange(expectedTarget) {
  55         return function(event) {
  56             assert_true(event.target instanceof ServiceWorker,
  57                         'the target of the statechange event should be a ' +
  58                         'ServiceWorker.');
  59             assert_equals(event.target, expectedTarget,
  60                           'the target of the statechange event should be ' +
  61                           'the installing ServiceWorker');
  62             assert_equals(event.type, 'statechange',
  63                           'the type of the event should be "statechange".');
  64
  65             checkStateTransition(event.target.state);
  66
  67             if (event.target.state == 'active')
  68                 service_worker_unregister_and_done(t, scope);
  69         };
  70     }
  71 }());
  72 </script>