blob: 990b892e00c5e4d007c4f57c32f5d7bc7f899595 [file] [log] [blame]
// 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 dynamic firstWhere(bool test(E value), {Object orElse()})
/// By default, when [orElse] is [null], a StateError is thrown.
/// @description Checks that a StateError is thrown when orElse is null and none
/// matches.
/// @author kaigorodov
import "dart:collection";
import "../../../Utils/expect.dart";
check(List list) {
DoubleLinkedQueue queue = new DoubleLinkedQueue.from(list);
Expect.throws(() { queue.firstWhere((var value) => false); },
(e) => e is StateError
main() {
check(new List.empty());
check(new List.from([]));
check([1, 2, 3]);