<!DOCTYPE html>
<title>ServiceWorkerGlobalScope: Error event error message</title>
<script src='/resources/testharness.js'></script>
<script src='/resources/testharnessreport.js'></script>
<script src='../resources/test-helpers.sub.js'></script>
<script>
promise_test(t => {
    var script = 'resources/error-worker.js';
    var scope = 'resources/scope/service-worker-error-event';
    var error_name = 'testError'
    return service_worker_unregister_and_register(t, script, scope)
      .then(registration => {
          var worker = registration.installing;
          add_completion_callback(() => { registration.unregister(); });
          return new Promise(function(resolve) {
              navigator.serviceWorker.onmessage = resolve;
              worker.postMessage('');
            });
        })
      .then(e => {
          assert_equals(e.data.error, error_name, 'error type');
          assert_greater_than(
            e.data.message.indexOf(error_name), -1, 'error message');
          assert_greater_than(
            e.data.filename.indexOf(script), -1, 'filename');
          assert_equals(e.data.lineno, 5, 'error line number');
          assert_equals(e.data.colno, 3, 'error column number');
        });
  }, 'Error handlers inside serviceworker should see the attributes of ' +
     'ErrorEvent');
</script>