LibTest/async/Stream/elementAt_A03_t01.test.dart

// 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.

/**
 * @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));
  }
}