| /* |
| * 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 Future<bool> any(bool test(T element)) |
| * Checks whether test accepts any element provided by this stream. |
| * . . . |
| * If the stream ends without finding an element that test accepts, the returned |
| * future is completed with false. |
| * |
| * @description Checks that if the stream ends without finding an element that |
| * test accepts, the returned future is completed with false. |
| * @author ngl@unipro.ru |
| */ |
| import "dart:async"; |
| import "dart:io"; |
| import "../http_utils.dart"; |
| import "../../../Utils/expect.dart"; |
| |
| var localhost = InternetAddress.loopbackIPv4; |
| |
| Future<List<RawSocketEvent>> anyElement(RawDatagramSocket receiver, |
| RawSocketEvent expectedEvent, |
| {Duration delay = const Duration(seconds: 2)}) { |
| List<RawSocketEvent> tested = []; |
| Completer<List<RawSocketEvent>> completer = |
| new Completer<List<RawSocketEvent>>(); |
| Future<List<RawSocketEvent>> f = completer.future; |
| Stream bcs = receiver.asBroadcastStream(); |
| |
| bool test(x) { |
| tested.add(x); |
| return x == expectedEvent; |
| } |
| |
| bcs.any((event) => test(event)).then((value) { |
| Expect.equals(false, value); |
| }); |
| |
| bcs.listen((event) { |
| receiver.receive(); |
| if (event == RawSocketEvent.closed) { |
| if (!completer.isCompleted) { |
| completer.complete(tested); |
| } |
| } |
| }); |
| |
| new Future.delayed(delay, () { |
| if (!completer.isCompleted) { |
| receiver.close(); |
| } |
| }); |
| return f; |
| } |
| |
| check(RawSocketEvent expectedEvent, [bool no_write_events = false]) async { |
| RawDatagramSocket producer = await RawDatagramSocket.bind(localhost, 0); |
| RawDatagramSocket receiver = await RawDatagramSocket.bind(localhost, 0); |
| List<List<int>> toSend = [[0, 1, 2, 3], [1, 2, 3], [2, 3], [3]]; |
| if (no_write_events) { |
| receiver.writeEventsEnabled = false; |
| } |
| |
| bool wasSent = |
| await sendDatagram(producer, toSend, localhost, receiver.port); |
| Expect.isTrue(wasSent, "No datagram was sent"); |
| |
| List<RawSocketEvent> tested = await anyElement(receiver, expectedEvent); |
| Expect.isTrue(tested.length > 0); |
| } |
| |
| main() { |
| check(RawSocketEvent.write, true); |
| check(RawSocketEvent.readClosed); |
| check(RawSocketEvent.readClosed, true); |
| } |