chromium/third_party/blink/web_tests/http/tests/notifications/serviceworkerregistration-service-worker-no-permission.html

<!doctype html>
<html>
  <head>
    <title>Notifications: ServiceWorkerRegistration.showNotification().</title>
    <script src="../resources/testharness.js"></script>
    <script src="../resources/testharnessreport.js"></script>
    <script src="../serviceworker/resources/test-helpers.js"></script>
    <script src="resources/test-helpers.js"></script>
  </head>
  <body>
    <script>
      // Tests that the showNotification() function when used in a Service Worker
      // rejects when no permission has been granted. This test requires the test runner.

      async_test(function(test) {
          var scope = 'resources/scope/serviceworkerregistration-service-worker-click',
              script = 'instrumentation-service-worker.js';

          getActiveServiceWorkerWithMessagePort(test, script, scope).then(function(info) {
              // (1) Tell the Service Worker to display a Web Notification.
              return sendCommand(info.port, {
                  command: 'show',

                  title: 'My Notification',
                  options: { body: 'Hello, world!' }
              });
          }).then(function(data) {
              // (2) Confirm that the service worker could not display the notification due to a
              // permission error.
              assert_false(data.success);
              assert_equals(data.message, "Failed to execute 'showNotification' on 'ServiceWorkerRegistration': No notification permission has been granted for this origin.");

              test.done();
          }).catch(unreached_rejection(test));

      }, 'showNotification() must reject if no Web Notification permission has been granted.');
    </script>
  </body>
</html>