blob: 1084a22d7aeda80eec6bc94bf7b03c1511dbbcea [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 Iterable<E> where(bool f(E element))
/// Returns a lazy Iterable with all elements that satisfy the predicate f.
/// @description Checks that nested invocations of where() on the same collection
/// does not cause any errors.
/// @author pagolubev
library where_A01_t08;
import "../../../Utils/expect.dart";
test(Iterable create([Iterable content])) {
Iterable l = create([1, -3, 10, 17]);
List l1 = new List.empty(growable: true);
Iterable outer = l.where((var x) {
List l2 = new List.empty(growable: true);
Iterable inner = l.where((var y) {
return true;
Iterator it = inner.iterator;
while(it.moveNext()) {}
Expect.iterableEquals(l, l2);
return true;
Iterator it = outer.iterator;
while(it.moveNext()) {}
Expect.iterableEquals(l, l1);