blob: cabde2d1d774a3462691a002babb4915429345e0 [file] [log] [blame]
// Copyright (c) 2013, 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> takeWhile(bool test(E value))
/// ...
/// The filtering happens lazily.
/// @description Checks that [test] is not invoked until returned [Iterable]
/// is not iterated.
/// @author msyabro
import "dart:typed_data";
import "../../../Utils/expect.dart";
main() {
var count = 0;
test(e) {
return true;
var list = new Int8List.fromList([1, 2, 3]);
var res = list.takeWhile(test);
Expect.equals(0, count);
Expect.equals(1, count);