Revert "Extract meta data about open sockets into separate class."

runtime/observatory/tests/service/tcp_socket_service_test.dart

-// Copyright (c) 2015, 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.
-
-import 'dart:async';
-import 'dart:convert';
-import 'dart:io' as io;
-import 'package:observatory/service_io.dart';
-import 'package:unittest/unittest.dart';
-import 'test_helper.dart';
-
-Future setupTCP() async {
-  // Note that we don't close after us, by design we leave the sockets opens
-  // to allow us to query them from the other isolate.
-  var serverSocket = await io.ServerSocket.bind('127.0.0.1', 0);
-  serverSocket.listen((s) {
-    s.transform(UTF8.decoder).listen(print);
-    s.close();
-  });
-  var socket = await io.Socket.connect("127.0.0.1", serverSocket.port);
-  socket.write("foobar");
-  socket.write("foobar");
-  await socket.flush();
-
-  var socket2 = await io.Socket.connect("127.0.0.1", serverSocket.port);
-  socket2.write("foobarfoobar");
-  await socket2.flush();
-}
-
-var tcpTests = [
-  // Initial.
-  (Isolate isolate) async {
-    var result = await isolate.invokeRpcNoUpgrade('__getOpenSockets', {});
-    expect(result['type'], equals('_opensockets'));
-    // We expect 3 sockets to be open (in this order):
-    //   The server socket accepting connections, on port X
-    //   The accepted connection on the client, on port Y
-    //   The client connection, on port X
-    expect(result['data'].length, equals(5));
-    // The first socket will have a name like listening:127.0.0.1:X
-    // The second will have a name like 127.0.0.1:Y
-    // The third will have a name like 127.0.0.1:X
-    expect(result['data'][0]['name'].startsWith('listening:127.0.0.1'), isTrue);
-    expect(result['data'][1]['name'].startsWith('127.0.0.1:'), isTrue);
-    expect(result['data'][2]['name'].startsWith('127.0.0.1:'), isTrue);
-
-    var listening = await isolate.invokeRpcNoUpgrade(
-        '__getSocketByID', { 'id' : result['data'][0]['id'] });
-    expect(listening['id'], equals(result['data'][0]['id']));
-    expect(listening['listening'], isTrue);
-    expect(listening['socket_type'], equals('TCP'));
-    expect(listening['port'], greaterThanOrEqualTo(1024));
-    expect(listening['last_read'], greaterThan(0));
-    expect(listening['total_read'], equals(2));
-    expect(listening['last_write'], equals(0));
-    expect(listening['total_written'], equals(0));
-    expect(listening['write_count'], equals(0));
-    expect(listening['read_count'], equals(0));
-    expect(listening['remote_host'], equals('NA'));
-    expect(listening['remote_port'], equals('NA'));
-
-    var client = await isolate.invokeRpcNoUpgrade(
-        '__getSocketByID', { 'id' : result['data'][1]['id'] });
-    expect(client['id'], equals(result['data'][1]['id']));
-
-    var server = await isolate.invokeRpcNoUpgrade(
-        '__getSocketByID', { 'id' : result['data'][2]['id'] });
-    expect(server['id'], equals(result['data'][2]['id']));
-
-    // We expect the client to be connected on the port and
-    // host of the listening socket.
-    expect(client['remote_port'], equals(listening['port']));
-    expect(client['remote_host'], equals(listening['host']));
-    // We expect the third socket (accepted server) to be connected to the
-    // same port and host as the listening socket (the listening one).
-    expect(server['port'], equals(listening['port']));
-    expect(server['host'], equals(listening['host']));
-
-    expect(client['listening'], isFalse);
-    expect(server['listening'], isFalse);
-
-    expect(client['socket_type'], equals('TCP'));
-    expect(server['socket_type'], equals('TCP'));
-
-    // We are using no reserved ports.
-    expect(client['port'], greaterThanOrEqualTo(1024));
-    expect(server['port'], greaterThanOrEqualTo(1024));
-
-    // The client and server "mirror" each other in reads and writes, and the
-    // timestamps are in correct order.
-    expect(client['last_read'], equals(0));
-    expect(server['last_read'], greaterThan(0));
-    expect(client['total_read'], equals(0));
-    expect(server['total_read'], equals(12));
-    expect(client['read_count'], equals(0));
-    // We did not flush after first write, so only one read.
-    // This may be fragile -> should we just make sure it is bigger than 1?
-    expect(server['read_count'], equals(1));
-
-    expect(client['last_write'], greaterThan(0));
-    expect(server['last_write'], equals(0));
-    expect(client['total_written'], equals(12));
-    expect(server['total_written'], equals(0));
-    expect(client['write_count'], equals(2));
-    expect(server['write_count'], equals(0));
-
-    // Order
-    expect(server['last_read'], greaterThan(client['last_write']));
-
-    var second_client = await isolate.invokeRpcNoUpgrade(
-        '__getSocketByID', { 'id' : result['data'][3]['id'] });
-    expect(second_client['id'], equals(result['data'][3]['id']));
-    var second_server = await isolate.invokeRpcNoUpgrade(
-        '__getSocketByID', { 'id' : result['data'][4]['id'] });
-    expect(second_server['id'], equals(result['data'][4]['id']));
-
-    // We expect the client to be connected on the port and
-    // host of the listening socket.
-    expect(second_client['remote_port'], equals(listening['port']));
-    expect(second_client['remote_host'], equals(listening['host']));
-    // We expect the third socket (accepted server) to be connected to the
-    // same port and host as the listening socket (the listening one).
-    expect(second_server['port'], equals(listening['port']));
-    expect(second_server['host'], equals(listening['host']));
-
-    expect(second_client['listening'], isFalse);
-    expect(second_server['listening'], isFalse);
-
-    expect(second_client['socket_type'], equals('TCP'));
-    expect(second_server['socket_type'], equals('TCP'));
-
-    // We are using no reserved ports.
-    expect(second_client['port'], greaterThanOrEqualTo(1024));
-    expect(second_server['port'], greaterThanOrEqualTo(1024));
-
-    // The client and server "mirror" each other in reads and writes, and the
-    // timestamps are in correct order.
-    expect(second_client['last_read'], equals(0));
-    expect(second_server['last_read'], greaterThan(0));
-    expect(second_client['total_read'], equals(0));
-    expect(second_server['total_read'], equals(12));
-    expect(second_client['read_count'], equals(0));
-    expect(second_server['read_count'], equals(1));
-
-    expect(second_client['last_write'], greaterThan(0));
-    expect(second_server['last_write'], equals(0));
-    expect(second_client['total_written'], equals(12));
-    expect(second_server['total_written'], equals(0));
-    expect(second_client['write_count'], equals(1));
-    expect(second_server['write_count'], equals(0));
-
-    // Order
-    expect(server['last_read'], greaterThan(client['last_write']));
-  },
-];
-
-main(args) async => runIsolateTests(args, tcpTests, testeeBefore:setupTCP);