anchor.diff:  import "../../../Utils/expect.dart";
   import "IsolateUtil.dart";
   
  -entryPoint(message) {
  +bool start = false;
  +entryPoint(SendPort message) {
  +  message.send("Started");
     Random random = new Random();
     int s = 0;
     while (true) {
  
positive.code:   for (var response in await Future.wait(pingResponses)) {
      Expect.equals("timeout", response);
    }
    // clean up
    isolate.kill(priority: Isolate.immediate);
    await onExit.first;
    asyncEnd();
  
negative.code: }
  
  Future test(List<Object?> values) async {
    ReceivePort port = new ReceivePort();
    ReceivePort onExit = new ReceivePort();
    Isolate isolate = await Isolate.spawn(entryPoint, port.sendPort,
        onExit: onExit.sendPort,
        errorsAreFatal: true);
    var v = await port.first;
    List<Future> pingResponses = [];
    for (Object? value in values) {
      ReceivePort pingPort = new ReceivePort();
  