| // 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 removeErrorListener( |
| /// SendPort port |
| /// ) |
| /// Stop listening for uncaught errors through port. |
| /// The port should be a port that is listening for errors through |
| /// addErrorListener. This call requests that the isolate stops sending errors |
| /// on the port. |
| /// If the same port has been passed via addErrorListener more than once, |
| /// only one call to removeErrorListener is needed to stop it from receiving |
| /// errors. |
| /// |
| /// @description Check that only one call to removeErrorListener() is necessary |
| /// to stop the port to receive isolate errors. |
| /// |
| /// @author a.semenov@unipro.ru |
| |
| import "dart:isolate"; |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| import "IsolateUtil.dart"; |
| |
| test() async { |
| ReceivePort errorPort = new ReceivePort(); |
| StreamIterator errors = new StreamIterator(errorPort); |
| ErrorServer server = await ErrorServer.spawn( |
| onError:errorPort.sendPort, |
| errorsAreFatal:false |
| ); |
| server.isolate.addErrorListener(errorPort.sendPort); |
| server.isolate.addErrorListener(errorPort.sendPort); |
| |
| for (int i=0; i<3; i++) { |
| server.generateError(); |
| Expect.isTrue(await errors.moveNext()); |
| Expect.equals(i.toString(), errors.current[0]); |
| } |
| |
| server.isolate.removeErrorListener(errorPort.sendPort); |
| |
| server.generateError(); // these errors should not be received |
| server.generateError(); |
| |
| // check for unexpected events |
| Expect.isFalse(await errors.moveNext().timeout(ONE_SECOND, onTimeout:()=>false)); |
| |
| server.requestStop(); |
| errorPort.close(); |
| asyncEnd(); |
| } |
| |
| main() { |
| asyncStart(); |
| test(); |
| } |