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| 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 class ListIteratorsTest { | |
| 6 static void checkListIterator(List a) { | |
| 7 Iterator it = a.iterator(); | |
| 8 Expect.equals(false, it.hasNext() == a.isEmpty()); | |
| 9 for (int i = 0; i < a.length; i++) { | |
| 10 Expect.equals(true, it.hasNext()); | |
| 11 var elem = it.next(); | |
| 12 } | |
| 13 Expect.equals(false, it.hasNext()); | |
| 14 bool exceptionCaught = false; | |
| 15 try { | |
| 16 var eleme = it.next(); | |
| 17 } catch (NoMoreElementsException e) { | |
| 18 exceptionCaught = true; | |
| 19 } | |
| 20 Expect.equals(true, exceptionCaught); | |
| 21 } | |
| 22 | |
| 23 static testMain() { | |
| 24 checkListIterator([]); | |
| 25 checkListIterator([1, 2]); | |
| 26 checkListIterator(new List(0)); | |
| 27 checkListIterator(new List(10)); | |
| 28 checkListIterator(new List()); | |
| 29 List g = new List(); | |
| 30 g.addAll([1, 2]); | |
| 31 checkListIterator(g); | |
| 32 | |
| 33 Iterator it = g.iterator(); | |
| 34 Expect.equals(true, it.hasNext()); | |
| 35 g.removeLast(); | |
| 36 Expect.equals(true, it.hasNext()); | |
| 37 g.removeLast(); | |
| 38 Expect.equals(false, it.hasNext()); | |
| 39 | |
| 40 g.addAll([10, 20]); | |
| 41 int sum = 0; | |
| 42 for (var elem in g) { | |
| 43 sum += elem; | |
| 44 // Iterator must realize that g has no more elements. | |
| 45 g.removeLast(); | |
| 46 } | |
| 47 Expect.equals(10, sum); | |
| 48 } | |
| 49 } | |
| 50 | |
| 51 main() { | |
| 52 ListIteratorsTest.testMain(); | |
| 53 } | |
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