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// 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 abstract E reduce(E combine(E value, E element))
/// The iterable must have at least one element.
/// @description Checks that error state exception is thrown if queue is empty.
/// @author
import "dart:collection";
import "../../../Utils/expect.dart";
class MyIterable extends Object with IterableMixin {
List _content;
MyIterable(List list): _content = list;
Iterator get iterator {
return _content.iterator;
test (combine, element) {
return combine + element;
main() {
IterableMixin iterable = new MyIterable([]);
Expect.throws(() { iterable.reduce(test); }, (e) => e is StateError);