LibTest/io/HttpServer/connectionsInfo_A01_t01.dart

// 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 HttpConnectionsInfo connectionsInfo()
/// Returns an HttpConnectionsInfo object summarizing the number of current
/// connections handled by the server.
/// @description Checks that this method returns an HttpConnectionsInfo object
/// summarizing the number of current
/// connections handled by the server
/// @author sgrekhov@unipro.ru

import "dart:io";
import "dart:convert";
import "../../../Utils/expect.dart";

test() async {
  String helloWorld = 'Hello, test world!';
  HttpServer server = await HttpServer.bind(InternetAddress.loopbackIPv4, 0);
  Expect.isNotNull(server.connectionsInfo());
  Expect.equals(0, server.connectionsInfo().active);
  Expect.equals(0, server.connectionsInfo().total);

  int count = 0;
  server.listen((HttpRequest request) {
    count++;
    request.response.write(helloWorld);
    Expect.equals(1, server.connectionsInfo().active);
    Expect.isTrue(server.connectionsInfo().total >= 1 &&
        server.connectionsInfo().total <= 2);
    request.response.close();

    Expect.equals(1, server.connectionsInfo().active);
    Expect.isTrue(server.connectionsInfo().total >= 1 &&
        server.connectionsInfo().total <= 2);

    if (count > 1) {
      asyncEnd();
      server.close();
    }
  });

  HttpClient client = new HttpClient();
  Uri uri = Uri
      .parse("http://${InternetAddress.loopbackIPv4.address}:${server.port}");
  client.getUrl(uri).then((HttpClientRequest request) => request.close())
      .then((HttpClientResponse response) {
        response.cast<List<int>>().transform(utf8.decoder).listen((content) {});
  });
  client.getUrl(uri).then((HttpClientRequest request) => request.close())
      .then((HttpClientResponse response) {
        response.cast<List<int>>().transform(utf8.decoder).listen((content) {});
  });
}

main() {
  asyncStart();
  test();
}