| /* |
| * Copyright (c) 2018, 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 Stream<S> map<S>(S convert(T event)) |
| * Creates a new stream that converts each element of this stream to a new value |
| * using the convert function. |
| * . . . |
| * The convert function is called once per data event per listener. If a |
| * broadcast stream is listened to more than once, each subscription will |
| * individually call convert on each data event. |
| * |
| * @description Checks that if a broadcast stream is listened to more than once, |
| * each subscription will individually call convert on each data event. |
| * @author ngl@unipro.ru |
| */ |
| import "dart:io"; |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| asyncStart(); |
| var address = InternetAddress.loopbackIPv4; |
| RawDatagramSocket.bind(address, 0).then((producer) { |
| RawDatagramSocket.bind(address, 0).then((receiver) { |
| int sent = 0; |
| int counter1 = 0; |
| int counter2 = 0; |
| int cCounter = 0; |
| List list1 = []; |
| List list2 = []; |
| List expected = [1, 2, 2, 3]; |
| int convert(e) { |
| cCounter++; |
| return (e == RawSocketEvent.write |
| ? 1 |
| : (e == RawSocketEvent.read |
| ? 2 |
| : (e == RawSocketEvent.closed ? 3 : 0))); |
| } |
| |
| producer.send([sent++], address, receiver.port); |
| producer.send([sent++], address, receiver.port); |
| producer.send([sent++], address, receiver.port); |
| producer.close(); |
| |
| new Timer(const Duration(milliseconds: 200), () { |
| Expect.isNull(receiver.receive()); |
| receiver.close(); |
| }); |
| |
| Stream bcs = receiver.asBroadcastStream(); |
| Stream stream = bcs.map(convert); |
| stream.listen((event) { |
| list1.add(event); |
| receiver.receive(); |
| counter1++; |
| }); |
| |
| stream.listen((event) { |
| list2.add(event); |
| counter2++; |
| }, onDone: () { |
| Expect.equals(8, counter1 + counter2); |
| Expect.equals(8, cCounter); |
| Expect.listEquals(expected, list1); |
| Expect.listEquals(expected, list2); |
| asyncEnd(); |
| }); |
| }); |
| }); |
| } |