<!DOCTYPE html>
<title>Service Worker: Dynamic import() on ServiceWorkerGlobalScope</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/test-helpers.js"></script>
<script>

// This test should not be upstreamed to WPT because this tests Chrome-specific
// behavior.

promise_test(t => {
  const kScope = 'resources/dynamic-import.html';
  const kScriptURL = 'resources/dynamic-import-worker.js';
  return service_worker_unregister_and_register(t, kScriptURL, kScope)
      .then(registration => {
          const promise = new Promise(resolve => {
              navigator.serviceWorker.onmessage = resolve;
          });
          registration.installing.postMessage('');
          return promise;
        })
      .then(msg_event => {
          assert_equals(msg_event.data.name, 'TypeError');
          assert_equals(
              msg_event.data.message,
              'Module scripts are not supported on WorkerGlobalScope yet ' +
              '(see https://crbug.com/680046).');
        });
}, 'Dynamic import() on ServiceWorkerGlobalScope should reject the promise.');

</script>