LibTest/collection/LinkedList/firstWhere_A03_t01.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 dynamic firstWhere(bool test(E value), {Object orElse()})
/// If [orElse] is omitted, it defaults to throwing a [StateError].
/// @description Checks that a [StateError] is thrown when [orElse] is [null] and
/// none matches.
/// @author kaigorodov

import "dart:collection";
import "../../../Utils/expect.dart";
import "LinkedList.lib.dart";

check(List list0) {
  LinkedList<MyLinkedListEntry> list = toLinkedList(list0);
    Expect.throws(() {
      list.firstWhere((MyLinkedListEntry entry) => false);
    },
    (e) => e is StateError
  );
}

main() {
  check(new List.empty());
  check([]);
  check(const[]);
  check(new List.from([]));
  check([1, 2, 3]);
}