| // Copyright (c) 2016, 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 addErrorListener( |
| /// SendPort port |
| /// ) |
| /// Requests that uncaught errors of the isolate are sent back to port. |
| /// |
| /// The errors are sent back as two elements lists. The first element is |
| /// a String representation of the error, usually created by calling toString |
| /// on the error. The second element is a String representation of |
| /// an accompanying stack trace, or null if no stack trace was provided. |
| /// To convert this back to a StackTrace object, use StackTrace.fromString. |
| /// |
| /// @description Check that uncaught errors of the isolate are sent to the given |
| /// listener. |
| /// |
| /// @author a.semenov@unipro.ru |
| |
| import "dart:isolate"; |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| import "IsolateUtil.dart"; |
| |
| test() async { |
| ErrorServer server = await ErrorServer.spawn(errorsAreFatal:false); |
| |
| server.generateError(); |
| server.generateError(); |
| await new Future.delayed(ONE_SECOND); // wait for errors to be discarded |
| |
| ReceivePort errorPort = new ReceivePort(); |
| server.isolate.addErrorListener(errorPort.sendPort); |
| |
| int count = 2; |
| server.generateError(); |
| await for (var error in errorPort) { |
| Expect.isTrue(count < 7, "received unexpected data: $error"); |
| Expect.isTrue(error is List); |
| Expect.equals(2, error.length); |
| Expect.isTrue(error[0] is String); |
| Expect.isTrue(error[1] is String); |
| Expect.equals(count.toString(), error[0]); |
| count++; |
| |
| if (count == 5) { |
| server.requestStop(); |
| // wait for any unexpected events on errorPort |
| new Future.delayed(TWO_SECONDS, () => errorPort.close()); |
| } else { |
| server.generateError(); |
| } |
| } |
| asyncEnd(); |
| } |
| |
| main() { |
| asyncStart(); |
| test(); |
| } |