<!DOCTYPE html>
<title>Service Worker: Controller on load</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/test-helpers.sub.js"></script>
<body>
<script>
promise_test(function(t) {
    var url = 'resources/empty-worker.js';
    var scope = 'resources/blank.html';
    var registration;
    var controller;
    var frame;
    return service_worker_unregister_and_register(t, url, scope)
      .then(function(swr) {
          t.add_cleanup(function() {
              return service_worker_unregister(t, scope);
            });

          registration = swr;
          return wait_for_state(t, registration.installing, 'activated');
        })
      .then(function() {
          return with_iframe(scope);
        })
      .then(function(f) {
          frame = f;
          var w = frame.contentWindow;
          controller = w.navigator.serviceWorker.controller;
          assert_true(controller instanceof w.ServiceWorker,
                      'controller should be a ServiceWorker object');
          assert_equals(controller.scriptURL, normalizeURL(url));

          // objects from different windows should not be equal
          assert_not_equals(controller, registration.active);

          return w.navigator.serviceWorker.getRegistration();
        })
      .then(function(frameRegistration) {
          // SW objects from same window should be equal
          assert_equals(frameRegistration.active, controller);
          frame.remove();
        });
}, 'controller is set for a controlled document');
</script>
</body>
