sdk/tests/html/event_customevent_test.dart

// Copyright (c) 2012, 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.

library EventCustomEventTest;
import '../../pkg/unittest/lib/unittest.dart';
import '../../pkg/unittest/lib/html_config.dart';
import 'dart:html';

// TODO(nweiz): Make this private to testEvents when Frog supports closures with
// optional arguments.
eventTest(String name, Event eventFn(), void validate(Event),
    [String type = 'foo']) {
  test(name, () {
    final el = new Element.tag('div');
    var fired = false;
    el.on[type].add((ev) {
      fired = true;
      validate(ev);
    });
    el.on[type].dispatch(eventFn());
    expect(fired, isTrue, reason: 'Expected event to be dispatched.');
  });
}

main() {
  useHtmlConfiguration();

  test('custom events', () {
    var provider = new EventStreamProvider<CustomEvent>('foo');
    var el = new DivElement();

    var fired = false;
    provider.forTarget(el).listen((ev) {
      fired = true;
      expect(ev.detail, 'detail');
    });

    var ev = new CustomEvent('foo', canBubble: false, cancelable: false,
        detail: 'detail');
    el.dispatchEvent(ev);
    expect(fired, isTrue);
  });
}