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Side by Side Diff: tests/corelib/src/ListIteratorsTest.dart

Issue 10244009: test rename overhaul: step 7 - corelib tests (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 8 years, 7 months ago
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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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