pkg/polymer/test/publish_attributes_test.dart

// Copyright (c) 2013, 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.

import 'dart:html';
import 'package:unittest/unittest.dart';
import 'package:unittest/html_config.dart';
import 'package:polymer/polymer.dart';

// Dart note: unlike JS, you can't publish something that doesn't
// have a corresponding field because we can't dynamically add properties.
// So we define XFoo and XBar types here.
@CustomTag('x-foo')
class XFoo extends PolymerElement {
  XFoo.created() : super.created();

  @observable var Foo;
  @observable var baz;
}

@CustomTag('x-bar')
class XBar extends XFoo {
  XBar.created() : super.created();

  @observable var Bar;
}

@CustomTag('x-zot')
class XZot extends XBar {
  XZot.created() : super.created();

  @published int zot = 3;
}

@CustomTag('x-squid')
class XSquid extends XZot {
  XSquid.created() : super.created();

  @published int baz = 13;
  @published int zot = 5;
  @published int squid = 7;
}

main() {
  initPolymer();
  useHtmlConfiguration();

  setUp(() => Polymer.onReady);

  test('published properties', () {
    published(tag) =>
        query('polymer-element[name=$tag]').publishedProperties;

    print(published('x-foo'));
    print(published('x-bar'));
    print(published('x-zot'));
    print(published('x-squid'));

    expect(published('x-foo'), ['Foo', 'baz']);
    expect(published('x-bar'), ['Foo', 'baz', 'Bar']);
    expect(published('x-zot'), ['Foo', 'baz', 'Bar', 'zot']);
    expect(published('x-squid'), ['Foo', 'baz', 'Bar', 'zot', 'squid']);
  });
}