// Copyright (c) 2017, 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

/// @assertion  void forEach(void action(K key, V value))
/// Applies [f] to each key-value pair of the map.
/// @description Checks that error is thrown when the argument is [null]
/// @author iarkh@unipro.ru


import "dart:collection";
import "../../../Utils/expect.dart";

main() {
  UnmodifiableMapView view = new UnmodifiableMapView({1 : 3, "2" : 5});
  Expect.throws(() => view.forEach(null));
}