| // Copyright (c) 2011, 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 isEmpty |
| * Returns whether the buffer is empty. This is a constant-time operation. |
| * @description Checks that this method returns true if the buffer is empty and |
| * false otherwise |
| * @author msyabro |
| */ |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| StringBuffer sb = new StringBuffer(); |
| Expect.isTrue(sb.isEmpty); |
| Expect.isTrue((sb..write("")).isEmpty); |
| Expect.isFalse((sb..write(null)).isEmpty); |
| Expect.isTrue((sb..clear()).isEmpty); |
| Expect.isFalse((sb..write("abc")).isEmpty); |
| } |
