| /* |
| * 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<RawSocketEvent> where (bool test(T event)) |
| * Creates a new stream from this stream that discards some elements. |
| * |
| * The new stream sends the same error and done events as this stream, but it |
| * only sends the data events that satisfy the test. |
| * |
| * @description Checks that method [where] creates a new stream from this stream |
| * and returned stream contains elements that satisfy the test. |
| * @author ngl@unipro.ru |
| */ |
| import "dart:io"; |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| check(test(e), dataExpected) { |
| asyncStart(); |
| var address = InternetAddress.loopbackIPv4; |
| RawDatagramSocket.bind(address, 0).then((producer) { |
| RawDatagramSocket.bind(address, 0).then((receiver) { |
| int sent = 0; |
| List list = []; |
| producer.send([sent++], address, receiver.port); |
| producer.send([sent++], address, receiver.port); |
| producer.send([sent++], address, receiver.port); |
| producer.close(); |
| |
| Stream bcs = receiver.asBroadcastStream(); |
| Stream s = bcs.where(test); |
| s.listen((event) { |
| list.add(event); |
| }, onDone: () { |
| Expect.listEquals(dataExpected, list); |
| asyncEnd(); |
| }); |
| |
| bcs.listen((event) { |
| receiver.receive(); |
| }); |
| |
| new Timer(const Duration(milliseconds: 200), () { |
| Expect.isNull(receiver.receive()); |
| receiver.close(); |
| }); |
| }); |
| }); |
| } |
| |
| main() { |
| List expected = [ |
| RawSocketEvent.write, |
| RawSocketEvent.read, |
| RawSocketEvent.read, |
| RawSocketEvent.closed |
| ]; |
| check((e) => e != RawSocketEvent.closed, expected.sublist(0, 3)); |
| check((e) => e != RawSocketEvent.read, |
| [RawSocketEvent.write, RawSocketEvent.closed]); |
| check((e) => e != RawSocketEvent.write, expected.sublist(1)); |
| check((e) => e == RawSocketEvent.closed, expected.sublist(3)); |
| check((e) => e == RawSocketEvent.read, expected.sublist(1, 3)); |
| check((e) => e == RawSocketEvent.write, expected.sublist(0, 1)); |
| check((e) => true, expected); |
| check((e) => false, []); |
| } |