// 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 E elementAt(int index)
/// If [this] has fewer than [index] elements throws a RangeError.
/// @description Checks that a [RangeError] is thrown if [this]
/// has fewer than [index] elements.
/// @author msyabro

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

check(string) {
  var runes = new Runes(string);
  Expect.throws(() {runes.elementAt(runes.length + 1);},
      (e) => e is RangeError);
  Expect.throws(() {runes.elementAt(- 1);}, (e) => e is RangeError);
}

main() {
  check('');
  check('a');
  check('abcdefghijklmnopqrstuvwxyz');
}