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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
library thrift.test.transport.t_framed_transport_test;
import 'dart:async';
import 'dart:typed_data' show Uint8List;
import 'package:dart2_constant/convert.dart' show utf8;
import 'package:test/test.dart';
import 'package:thrift/thrift.dart';
void main() {
group('TFramedTransport partial reads', () {
final flushAwaitDuration = new Duration(seconds: 10);
FakeReadOnlySocket socket;
TSocketTransport socketTransport;
TFramedTransport transport;
var messageAvailable;
setUp(() {
socket = new FakeReadOnlySocket();
socketTransport = new TClientSocketTransport(socket);
transport = new TFramedTransport(socketTransport);
messageAvailable = false;
});
expectNoReadableBytes() {
var readBuffer = new Uint8List(128);
var readBytes = transport.read(readBuffer, 0, readBuffer.lengthInBytes);
expect(readBytes, 0);
expect(messageAvailable, false);
}
test('Test transport reads messages where header and body are sent separately', () async {
// buffer into which we'll read
var readBuffer = new Uint8List(10);
var readBytes;
// registers for readable bytes
var flushFuture = transport.flush().timeout(flushAwaitDuration);
flushFuture.then((_) {
messageAvailable = true;
});
// write header bytes
socket.messageController.add(new Uint8List.fromList([0x00, 0x00, 0x00, 0x06]));
// you shouldn't be able to get any bytes from the read,
// because the header has been consumed internally
expectNoReadableBytes();
// write first batch of body
socket.messageController.add(new Uint8List.fromList(utf8.encode("He")));
// you shouldn't be able to get any bytes from the read,
// because the frame has been consumed internally
expectNoReadableBytes();
// write second batch of body
socket.messageController.add(new Uint8List.fromList(utf8.encode("llo!")));
// have to wait for the flush to complete,
// because it's only then that the frame is available for reading
await flushFuture;
expect(messageAvailable, true);
// at this point the frame is complete, so we expect the read to complete
readBytes = transport.read(readBuffer, 0, readBuffer.lengthInBytes);
expect(readBytes, 6);
expect(readBuffer.sublist(0, 6), utf8.encode("Hello!"));
});
test('Test transport reads messages where header is sent in pieces '
'and body is also sent in pieces', () async {
// buffer into which we'll read
var readBuffer = new Uint8List(10);
var readBytes;
// registers for readable bytes
var flushFuture = transport.flush().timeout(flushAwaitDuration);
flushFuture.then((_) {
messageAvailable = true;
});
// write first part of header bytes
socket.messageController.add(new Uint8List.fromList([0x00, 0x00]));
// you shouldn't be able to get any bytes from the read
expectNoReadableBytes();
// write second part of header bytes
socket.messageController.add(new Uint8List.fromList([0x00, 0x03]));
// you shouldn't be able to get any bytes from the read again
// because only the header was read, and there's no frame body
readBytes = expectNoReadableBytes();
// write first batch of body
socket.messageController.add(new Uint8List.fromList(utf8.encode("H")));
// you shouldn't be able to get any bytes from the read,
// because the frame has been consumed internally
expectNoReadableBytes();
// write second batch of body
socket.messageController.add(new Uint8List.fromList(utf8.encode("i!")));
// have to wait for the flush to complete,
// because it's only then that the frame is available for reading
await flushFuture;
expect(messageAvailable, true);
// at this point the frame is complete, so we expect the read to complete
readBytes = transport.read(readBuffer, 0, readBuffer.lengthInBytes);
expect(readBytes, 3);
expect(readBuffer.sublist(0, 3), utf8.encode("Hi!"));
});
});
}
class FakeReadOnlySocket extends TSocket {
StreamController<Uint8List> messageController = new StreamController<Uint8List>(sync: true);
StreamController<Object> errorController = new StreamController<Object>();
StreamController<TSocketState> stateController = new StreamController<TSocketState>();
@override
Future close() {
// noop
}
@override
bool get isClosed => false;
@override
bool get isOpen => true;
@override
Stream<Object> get onError => errorController.stream;
@override
Stream<Uint8List> get onMessage => messageController.stream;
@override
Stream<TSocketState> get onState => stateController.stream;
@override
Future open() {
// noop
}
@override
void send(Uint8List data) {
// noop
}
}
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