| // 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. |
| /// |
| /// For each data event, o, in this stream, the returned stream provides a data |
| /// event with the value convert(o). |
| /// |
| /// @description Checks that a new stream contains expected events. |
| /// @author ngl@unipro.ru |
| |
| import "dart:io"; |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| check(convert(event), expected) { |
| asyncStart(); |
| var address = InternetAddress.loopbackIPv4; |
| RawDatagramSocket.bind(address, 0).then((producer) { |
| RawDatagramSocket.bind(address, 0).then((receiver) { |
| int sent = 0; |
| int counter = 0; |
| producer.send([sent++], address, receiver.port); |
| producer.send([sent++], address, receiver.port); |
| producer.send([sent], address, receiver.port); |
| producer.close(); |
| receiver.close(); |
| |
| Stream s = receiver.map(convert); |
| s.listen((event) { |
| counter++; |
| if (event is List) { |
| Expect.listEquals(expected, event); |
| } else { |
| Expect.equals(expected, event); |
| } |
| if (counter > 1) { |
| Expect.fail('counter = $counter. It should be 1.'); |
| } |
| }).onDone(() { |
| Expect.equals(1, counter); |
| asyncEnd(); |
| }); |
| }); |
| }); |
| } |
| |
| main() { |
| check((e) => e, RawSocketEvent.closed); |
| check((e) => [1, 2], [1, 2]); |
| } |