dart-sdk/tests/dart2js/regress_32069_test.dart
Joshua Litt f9f1ca6171 [dart2js] Create tests/dart2js for nnbd.
Change-Id: Ib8721cf976803d8d1b9d723b7e691e344c768b67
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149881
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Commit-Queue: Joshua Litt <joshualitt@google.com>
2020-06-09 16:53:15 +00:00

16 lines
513 B
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 'package:expect/expect.dart';
main() {
var m1 = {
'hello': <String>['hi', 'howdy'],
'bye': <String>[]
};
var m = new Map<String, List<String>>.unmodifiable(m1);
print(m);
Expect.isTrue(m is Map<String, List<String>>);
Expect.isFalse(m is Map<List<String>, String>);
}