<!DOCTYPE html>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<script src="resources/test-helpers.js"></script>
<script>
var worker_url = 'resources/simple-intercept-worker.js';

async_test(function(t) {
    var scope =
        'resources/unregister-controller-page.html?load-before-unregister';
    var frame_window;
    var controller;
    var registration;

    service_worker_unregister_and_register(t, worker_url, scope)
      .then(function(r) {
          registration = r;
          return wait_for_state(t, r.installing, 'activated');
        })
      .then(function() {
          return with_iframe(scope);
        })
      .then(function(frame) {
          frame_window = frame.contentWindow;
          controller = frame_window.navigator.serviceWorker.controller;
          assert_true(controller instanceof frame_window.ServiceWorker,
                      'document should load with a controller');
          return registration.unregister();
        })
      .then(function() {
          assert_equals(frame_window.navigator.serviceWorker.controller,
                        controller,
                        'unregistration should not modify controller');
          return frame_window.fetch_url('simple.txt');
        })
      .then(function(response) {
          assert_equals(response, 'intercepted by service worker',
                        'controller should intercept requests');
          t.done();
        })
      .catch(unreached_rejection(t));
  }, 'Unregister does not affect existing controller');

async_test(function(t) {
    var scope =
        'resources/unregister-controller-page.html?load-after-unregister';
    var registration;

    service_worker_unregister_and_register(t, worker_url, scope)
      .then(function(r) {
          registration = r;
          return wait_for_state(t, r.installing, 'activated');
        })
      .then(function() {
          return registration.unregister();
        })
      .then(function() {
          return with_iframe(scope);
        })
      .then(function(frame) {
          var frame_window = frame.contentWindow;
          assert_equals(frame_window.navigator.serviceWorker.controller, null,
                        'document should not have a controller');
          return frame_window.fetch_url('simple.txt');
        })
      .then(function(response) {
          assert_equals(response, 'a simple text file\n',
                        'requests should not be intercepted');
          t.done();
        })
      .catch(unreached_rejection(t));
  }, 'Unregister prevents control of subsequent navigations');

async_test(function(t) {
    var scope =
        'resources/scope/no-new-controllee-even-if-registration-is-still-used';
    var registration;

    service_worker_unregister_and_register(t, worker_url, scope)
      .then(function(r) {
          registration = r;
          return wait_for_state(t, r.installing, 'activated');
        })
      .then(function() {
          return with_iframe(scope);
        })
      .then(function(frame) {
          return registration.unregister();
        })
      .then(function() {
          return with_iframe(scope);
        })
      .then(function(frame) {
          assert_equals(frame.contentWindow.navigator.serviceWorker.controller,
                        null,
                        'document should not have a controller');
          t.done();
        })
      .catch(unreached_rejection(t));
  }, 'Unregister prevents new controllee even if registration is still in use');
</script>