| // Copyright (c) 2017, 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 final bool isNotEmpty |
| /// Returns whether the buffer is not empty. This is a constant-time operation. |
| /// @description Checks that this method returns true if the buffer is not empty |
| /// and false otherwise |
| /// @author sgrekhov@unipro.ru |
| |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| StringBuffer sb = new StringBuffer(); |
| Expect.isFalse(sb.isNotEmpty); |
| Expect.isFalse((sb..write("")).isNotEmpty); |
| Expect.isTrue((sb..write(null)).isNotEmpty); |
| Expect.isFalse((sb..clear()).isNotEmpty); |
| Expect.isTrue((sb..write("abc")).isNotEmpty); |
| } |