| // Copyright (c) 2013, 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 Object encode(Object value, {toEncodable(object)}) |
| /// If the object does not support "toJson()" method, throws, or returns a value |
| /// that is not directly serializable, |
| /// a JsonUnsupportedObjectError exception is thrown. |
| /// If the call throws (including the case where there is no nullary "toJson" |
| /// method, the error is caught and stored in the JsonUnsupportedObjectError's |
| /// cause field. |
| /// @description Checks that if "toJson()" method throws, |
| /// the error is caught and stored in the JsonUnsupportedObjectError's cause |
| /// field. |
| /// @author kaigorodov |
| |
| import "dart:convert"; |
| import "../../../Utils/expect.dart"; |
| |
| class S1 { |
| Object a = new Error(); |
| |
| S1(this.a); |
| |
| Object toJson() => throw a; |
| } |
| |
| main() { |
| JsonCodec codec = new JsonCodec(); |
| Error e1 = new Error(); |
| S1 s1 = new S1(e1); |
| String? res; |
| Expect.throws(() { res = codec.encode(s1); }, |
| (e) => e is JsonUnsupportedObjectError && e.cause != null, |
| "Error expected but result returned: $res"); |
| } |