dart-sdk/tests/lib/html/shadowroot_test.dart
Srujan Gaddam a925f4770f [dart:html] Remove 2.7 annotation from lib/html
Strips out the temporary annotation so all the tests without
NNBD related changes can run in strong mode.

Change-Id: I88f18916f0c5a45a80eddb73941db19984f0bfcf
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/140652
Commit-Queue: Srujan Gaddam <srujzs@google.com>
Reviewed-by: Bob Nystrom <rnystrom@google.com>
2020-04-06 20:41:14 +00:00

26 lines
792 B
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.
import 'dart:html';
import 'package:expect/minitest.dart';
main() {
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 div = new DivElement();
var shadowRoot = div.createShadowRoot();
expect(shadowRoot, isShadowRoot);
expect(div.shadowRoot, shadowRoot);
} else {
expect(() => new DivElement().createShadowRoot(), throws);
}
});
}