| /* |
| * 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 abstract Iterable<E> getRange(int start, int end) |
| * Returns an Iterable that iterators over the elements in the range start to |
| * end exclusive. The result of this function is backed by this. |
| * @description Checks lists with valid ranges. |
| * @author vasya |
| */ |
| library getRange_A01_t01; |
| |
| import "../../../Utils/expect.dart"; |
| |
| test(List<E> create<E>([int length, E fill])) { |
| |
| void check(List src, int start, int length) { |
| List a = create(); |
| a.addAll(src); |
| Iterator dst = a.getRange(start, start+length).iterator; |
| for(int i = 0; dst.moveNext(); i++) { |
| Expect.equals(a[i+start], dst.current); |
| Expect.identical(a[i+start], dst.current); |
| } |
| } |
| |
| List l = new List.filled(100, 0); |
| for (var i = 0; i < l.length; i++){ |
| l[i] = i; |
| } |
| check(l, 0, 100); |
| check(l, 0, 1); |
| check(l, 99, 1); |
| check(l, 90, 9); |
| |
| l = []; |
| for (var i = 0; i < 100; i++){ |
| l.add(i); |
| } |
| check(l, 0, 100); |
| check(l, 0, 1); |
| check(l, 99, 1); |
| check(l, 90, 9); |
| |
| l = new List.from([]); |
| for (var i = 0; i < 100; i++){ |
| l.add(i); |
| } |
| check(l, 0, 100); |
| check(l, 0, 1); |
| check(l, 99, 1); |
| check(l, 90, 9); |
| } |