sdk/tests/standalone/io/testing_server.dart

// Copyright (c) 2012, 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.

class TestingServer extends Isolate {

  static final HOST = "127.0.0.1";
  static final INIT = 0;
  static final SHUTDOWN = -1;

  abstract void onConnection(Socket connection);

  void main() {
    void errorHandlerServer(Exception e) {
      Expect.fail("Server socket error $e");
    }

    this.port.receive((message, SendPort replyTo) {
      if (message == INIT) {
        _server = new ServerSocket(HOST, 0, 10);
        Expect.equals(true, _server !== null);
        _server.onConnection = onConnection;
        _server.onError = errorHandlerServer;
        replyTo.send(_server.port, null);
      } else if (message == SHUTDOWN) {
        _server.close();
        this.port.close();
      }
    });
  }

  ServerSocket _server;
}

class TestingServerTest {

  TestingServerTest.start(TestingServer server)
      : _receivePort = new ReceivePort(),
        _sendPort = null {
    server.spawn().then((SendPort port) {
      _sendPort = port;
      start();
    });
  }

  abstract void run();

  void start() {
    _receivePort.receive((var message, SendPort replyTo) {
      _port = message;
      run();
    });
    _sendPort.send(TestingServer.INIT, _receivePort.toSendPort());
  }

  void shutdown() {
    _sendPort.send(TestingServer.SHUTDOWN, _receivePort.toSendPort());
    _receivePort.close();
  }

  int _port;
  ReceivePort _receivePort;
  SendPort _sendPort;
}