// 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

// @dart = 2.9

import 'dart:html';

import 'package:expect/minitest.dart';

main() {
  var isUnknownElement =
      predicate((x) => x is UnknownElement, 'is an UnknownELement');

  dynamic foo = new Element.tag('foo');
  foo.id = 'foo';
  var bar = new Element.tag('bar');
  bar.id = 'bar';
  document.body.nodes.addAll(<Node>[foo, bar]);

  test('type-check', () {
    expect(foo, isUnknownElement);
    expect(bar, isUnknownElement);
    expect(querySelector('#foo'), equals(foo));
    expect(querySelector('#bar'), equals(bar));
  });

  test('dispatch-fail', () {
    expect(() => foo.method1(), throwsNoSuchMethodError);
    expect(() => foo.field1, throwsNoSuchMethodError);
    expect(() {
      foo.field1 = 42;
    }, throwsNoSuchMethodError);
  });
}