<!DOCTYPE html>
<title>Service Worker: Controller on reload</title>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<script src="resources/test-helpers.js"></script>
<body>
<script>
promise_test(function(t) {
    var scope = 'resources/blank.html';
    var frame;
    return service_worker_unregister(t, scope)
      .then(function() {
          return with_iframe(scope);
        })
      .then(function(f) {
          frame = f;
          return frame.contentWindow.navigator.serviceWorker.register(
              'empty-worker.js', {scope: 'blank.html'});
        })
      .then(function(registration) {
          return wait_for_state(t, registration.installing, 'activated');
        })
      .then(function() {
          var w = frame.contentWindow;
          assert_equals(w.navigator.serviceWorker.controller, null,
                        'controller should be null until the document is ' +
                        'reloaded');
          return new Promise(function(resolve) {
              frame.onload = function() { resolve(); }
              w.location.reload();
            });
        })
      .then(function() {
          var w = frame.contentWindow;
          assert_true(
              w.navigator.serviceWorker.controller instanceof w.ServiceWorker,
              'controller should be a ServiceWorker object upon reload');
          frame.remove();
          service_worker_unregister_and_done(t, scope);
        });
  }, 'controller is set upon reload after registration');
</script>
</body>