tests/html/shadowroot_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 ShadowRootTest;
import '../../pkg/unittest/lib/unittest.dart';
import '../../pkg/unittest/lib/html_config.dart';
import 'dart:html';

main() {
  useHtmlConfiguration();

  var isShadowRoot =
      predicate((x) => x is ShadowRoot, 'is a ShadowRoot');

  test('ShadowRoot supported', () {
    var isSupported = ShadowRoot.supported;

    // If it's supported, then it should work. Otherwise should fail.
    if (isSupported) {
      var shadowRoot = new DivElement().createShadowRoot();
      expect(shadowRoot, isShadowRoot);
    } else {
      expect(() => new DivElement().createShadowRoot(), throws);
    }
  });
}