| // Copyright (c) 2011, 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 Future<T> elementAt(int index) |
| /// If a done event occurs before the value is found, the future completes with a |
| /// RangeError. |
| /// @description Checks that if a done event occurs before the value is found, |
| /// the future completes with a RangeError. |
| /// @author kaigorodov |
| |
| library elementAt_A03_t01; |
| import "../../../Utils/expect.dart"; |
| |
| void test(CreateStreamFunction create) { |
| AsyncExpect.error((e) => e is RangeError, create([]).elementAt(1)); |
| for (int k = 1; k < 10; k++) { |
| Iterable<int> it = new Iterable<int>.generate(k - 1, (int index) => index); |
| AsyncExpect.error((e) => e is RangeError, create(it).elementAt(k)); |
| } |
| } |