| // 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 false and sets |
| /// current to null if there is no previous element. |
| /// @author sgrekhov@unipro.ru |
| |
| library movePrevious_A01_t01; |
| import "../../../Utils/expect.dart"; |
| |
| test(BidirectionalIterator create([Iterable content])) { |
| BidirectionalIterator it = create(<int>[0, 1, 2, 3]); |
| |
| Expect.isFalse(it.movePrevious()); |
| |
| it.moveNext(); |
| |
| Expect.isFalse(it.movePrevious()); |
| } |