| // 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 void writeln([Object obj = ""]) |
| /// Converts obj to a String by invoking Object.toString and adds the result to |
| /// this, followed by a newline. |
| /// @description Checks that this method converts obj to a String by invoking |
| /// Object.toString and adds the result to this, followed by a newline. |
| /// @author sgrekhov@unipro.ru |
| |
| import "dart:convert"; |
| import "../../../Utils/expect.dart"; |
| |
| class C { |
| String value; |
| |
| C(this.value); |
| |
| String toString() => "C:" + this.value; |
| } |
| |
| main() { |
| StringBuffer stringSink = new StringBuffer(); |
| |
| ClosableStringSink sink = |
| new ClosableStringSink.fromStringSink(stringSink, () {}); |
| sink.writeln(new C("123")); |
| sink.close(); |
| Expect.equals("C:123\n", stringSink.toString()); |
| } |