LibTest/isolate/Isolate/spawnUri_A01_t02.dart

// Copyright (c) 2011-2016, 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 Future<Isolate> spawnUri(Uri uri,
///                                     List<String> args,
///                                     message,
///                                     { bool paused: false,
///                                       SendPort onExit,
///                                       SendPort onError,
///                                       bool errorsAreFatal,
///                                       bool checked,
///                                       Map<String, String> environment,
///                                       Uri packageRoot,
///                                       Uri packageConfig,
///                                       bool automaticPackageResolution: false
///                                     }
///                                    )
///     Creates and spawns an isolate that runs the code from the library with
///  the specified URI.
///     The isolate starts executing the top-level main function of the library
///  with the given URI.
///     The target main must be callable with zero, one or two arguments.
///  Examples:
///   main()
///   main(args)
///   main(args, message)
///     When present, the parameter args is set to the provided args list. When
///  present, the parameter message is set to the initial message.
///
/// @description Checks spawning 3 isolates from a single source.
///
/// @author kaigorodov


import "dart:isolate";
import "../../../Utils/expect.dart";

class Connection {
  String expectedMessage = "";
  var receivePort = new ReceivePort();

  Connection(int n) {
    expectedMessage = "spawnUri_A01_t01:$n";
    receivePort.listen(receiveHandler);
  }
  
  void start() {
    asyncStart();
    Isolate.spawnUri(
        new Uri.file("spawnUri_A01_t01_isolate.dart"),
        [expectedMessage],
        receivePort.sendPort
    );
  }
  
  void receiveHandler(var message) {
    Expect.equals(expectedMessage, message);
    receivePort.close();
    asyncEnd();
  }
}

main() {
  for (int k = 0; k < 3; k++) {
    Connection conn = new Connection(k);
    conn.start();
  }
}