LibTest/collection/UnmodifiableListView/insert_A01_t01.test.dart

// 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 insert(int index, E element)
/// This operation is not supported by an unmodifiable list.
/// @description Checks that [insert] method is not supported.
/// @author iarkh@unipro.ru

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

main() {
  UnmodifiableListView l =
      new UnmodifiableListView([1, 2, 3, 4, 5, "1", "2", "3"]);

  Expect.throws(() { l.insert(1, 0); }, (e) => e is UnsupportedError);
  Expect.throws(() { l.insert(null, 2); }, (e) => e is UnsupportedError);
  Expect.throws(() { l.insert(23, "12345"); }, (e) => e is UnsupportedError);
}