| // Copyright (c) 2020, 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 'package:expect/expect.dart'; | |
| // Regression test for https://github.com/dart-lang/sdk/issues/43281. | |
| void main() { | |
| const s = {1, 2, 3, null}; | |
| Expect.equals(4, s.length); | |
| Expect.isTrue(s is Set<int?>); | |
| } |