| // Copyright (c) 2017, 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 flush() |
| /// Returns a [Future] that completes once all buffered data is accepted by the |
| /// underlying [StreamConsumer]. |
| /// @description Checks that data is flushed after the [flush] call. |
| /// @author iarkh@unipro.ru |
| |
| import "../../../Utils/expect.dart"; |
| import "dart:async"; |
| import "dart:io"; |
| |
| int flushed = 0; |
| int cnt = 0; |
| |
| class MyStreamConsumer extends StreamConsumer<List<int>> { |
| Future addStream(Stream<List<int>> stream) { |
| return new Future(() {}).then((x) { |
| cnt++; |
| }); |
| } |
| |
| Future close() { |
| return new Future(() {}); |
| } |
| } |
| |
| test() async { |
| Stream<List<int>> stream1 = new Stream<List<int>>.fromIterable([ |
| [1, 2] |
| ]); |
| Stream<List<int>> stream2 = new Stream<List<int>>.fromIterable([ |
| [12], |
| [3, 22] |
| ]); |
| Stream<List<int>> stream3 = new Stream<List<int>>.fromIterable([ |
| [3, 22] |
| ]); |
| Stream<List<int>> stream4 = new Stream<List<int>>.fromIterable([ |
| [1, 1, 2, 1], |
| [12] |
| ]); |
| Stream<List<int>> stream5 = new Stream<List<int>>.fromIterable([ |
| [1, 2] |
| ]); |
| |
| StreamConsumer<List<int>> consumer = new MyStreamConsumer(); |
| |
| IOSink sink = new IOSink(consumer); |
| |
| await sink.addStream(stream1).then((x) { |
| cnt++; |
| }); |
| sink.add([0]); |
| await sink.addStream(stream2).then((x) { |
| cnt++; |
| }); |
| sink.write(12); |
| await sink.addStream(stream3).then((x) { |
| cnt++; |
| }); |
| sink.writeln("This is a test"); |
| sink.writeAll([129, null, 88, "test"]); |
| await sink.addStream(stream4).then((x) { |
| cnt++; |
| }); |
| await sink.addStream(stream5).then((x) { |
| cnt++; |
| }); |
| sink.writeln("This is a test"); |
| sink.writeAll([129, null, 88, "test"]); |
| sink.writeAll( |
| [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0]); |
| await sink.flush().then((x) { |
| Expect.equals(14, cnt); |
| flushed++; |
| }); |
| await sink.close(); |
| Expect.equals(1, flushed); |
| asyncEnd(); |
| } |
| |
| main() { |
| asyncStart(); |
| test(); |
| } |