LibTest/core/RangeError/RangeError.index_A03_t01.dart

// Copyright (c) 2016, 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 RangeError.index(int index, indexable,
///    [String name, String message, int length])
/// ...
/// The length is the length of indexable at the time of the error. If length
/// is omitted, it defaults to indexable.length.
/// ...
/// @description Checks that if If length is omitted, it defaults
/// to indexable.length.
/// @author sgrekhov@unipro.ru

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

main() {
  RangeError re1 = new RangeError.index(-1, [1, 2, 3]);
  Expect.equals(3, (re1 as IndexError).length);

  RangeError re2 = new RangeError.index(5, []);
  Expect.equals(0, (re2 as IndexError).length);

  RangeError re3 = new RangeError.index(1, [1, 2, 3, 4, 5]);
  Expect.equals(5, (re3 as IndexError).length);

  Expect.throws(() {new RangeError.index(1, null);});
}