LibTest/math/Rectangle/hashCode_A01_t02.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.

/**
 * @assertion int hashCode
 * The hash code for this object.
 * A hash code is a single integer which represents the state of the object that
 * affects == comparisons.
 * All objects have hash codes. The default hash code represents only the
 * identity of the object, the same way as the default == implementation only
 * considers objects equal if they are identical (see identityHashCode).
 * @description Checks that [hashCode] is read-only and can't be set.
 * @author ngl@unipro.ru
 */
import "dart:math";
import "../../../Utils/expect.dart";

main() {
  dynamic r = new Rectangle(1, 2, 3, 4);
  try {
    r.hashCode = 1;
    Expect.fail("[hashCode] should be read-only");
  } on NoSuchMethodError {}
}