| /* |
| * Copyright (c) 2016, 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 bool movePrevious() |
| * Move back to the previous element. |
| * Returns true and updates current if successful. Returns false and sets |
| * current to null if there is no previous element. |
| * @description Checks that this method returns true and updates the |
| * current if there is a previous element. |
| * @author sgrekhov@unipro.ru |
| */ |
| library movePrevious_A01_t02; |
| import "../../../Utils/expect.dart"; |
| |
| test(BidirectionalIterator create([Iterable content])) { |
| BidirectionalIterator it = create(<int>[0, 1, 2, 3]); |
| |
| it.moveNext(); |
| it.moveNext(); |
| |
| Expect.isTrue(it.movePrevious()); |
| Expect.equals(0, it.current); |
| } |