// 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.

/// @assertion void insertAll(int index, Iterable<E> iterable)
/// Inserts all objects of iterable at position [index] in the list.
/// This increases the length of the list by the length of iterable and shifts
/// all later elements towards the end of the list.
/// ...
/// An UnsupportedError occurs if the list is fixed-length.
/// @description Checks that [UnsupportedError] is thrown since [Uint64List] is
/// a fixed-length list.
/// @author msyabro

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

main() {
  var l = new Uint64List(10);
  Expect.throws(() { l.insertAll(0, [1, 2, 3]); }, (e) => e is UnsupportedError);
  Expect.equals(10, l.length);

  l = new Uint64List(0);
  Expect.throws(() { l.insertAll(0, [1, 1, 1]); }, (e) => e is UnsupportedError);
  Expect.equals(0, l.length);
}
