LibTest/html/Element/addEventListener_A01_t02.dart

// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

/**
 * @assertion void addEventListener(String type, EventListener listener,
 * [bool useCapture])
 * Register an event handler of a specific event type on the EventTarget.
 * @description Checks that listener for custom event can be added
 */
import "dart:html";
import "../../../Utils/expect.dart";

main() {
  var type = 'my_event';
  var x = new ButtonElement();
  document.body?.append(x);

  asyncStart();
  x.addEventListener(type, (e) {
    Expect.equals(type, e.type);
    asyncEnd();
  });

  var event = new Event(type);
  x.dispatchEvent(event);
}