test/io/client_test.dart

// Copyright (c) 2014, 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.

@TestOn('vm')

import 'dart:convert';
import 'dart:io';

import 'package:http/http.dart' as http;
import 'package:http/io_client.dart' as http_io;
import 'package:test/test.dart';

import 'utils.dart';

void main() {
  setUp(startServer);

  tearDown(stopServer);

  test('#send a StreamedRequest', () async {
    var client = http.Client();
    var request = http.StreamedRequest('POST', serverUrl)
      ..headers[HttpHeaders.contentTypeHeader] =
          'application/json; charset=utf-8'
      ..headers[HttpHeaders.userAgentHeader] = 'Dart';

    var responseFuture = client.send(request);
    request
      ..sink.add('{"hello": "world"}'.codeUnits)
      ..sink.close();

    var response = await responseFuture;

    expect(response.request, equals(request));
    expect(response.statusCode, equals(200));
    expect(response.headers['single'], equals('value'));
    // dart:io internally normalizes outgoing headers so that they never
    // have multiple headers with the same name, so there's no way to test
    // whether we handle that case correctly.

    var bytesString = await response.stream.bytesToString();
    client.close();
    expect(
        bytesString,
        parse(equals({
          'method': 'POST',
          'path': '/',
          'headers': {
            'content-type': ['application/json; charset=utf-8'],
            'accept-encoding': ['gzip'],
            'user-agent': ['Dart'],
            'transfer-encoding': ['chunked']
          },
          'body': '{"hello": "world"}'
        })));
  });

  test('#send a StreamedRequest with a custom client', () async {
    var ioClient = HttpClient();
    var client = http_io.IOClient(ioClient);
    var request = http.StreamedRequest('POST', serverUrl)
      ..headers[HttpHeaders.contentTypeHeader] =
          'application/json; charset=utf-8'
      ..headers[HttpHeaders.userAgentHeader] = 'Dart';

    var responseFuture = client.send(request);
    request
      ..sink.add('{"hello": "world"}'.codeUnits)
      ..sink.close();

    var response = await responseFuture;

    expect(response.request, equals(request));
    expect(response.statusCode, equals(200));
    expect(response.headers['single'], equals('value'));
    // dart:io internally normalizes outgoing headers so that they never
    // have multiple headers with the same name, so there's no way to test
    // whether we handle that case correctly.

    var bytesString = await response.stream.bytesToString();
    client.close();
    expect(
        bytesString,
        parse(equals({
          'method': 'POST',
          'path': '/',
          'headers': {
            'content-type': ['application/json; charset=utf-8'],
            'accept-encoding': ['gzip'],
            'user-agent': ['Dart'],
            'transfer-encoding': ['chunked']
          },
          'body': '{"hello": "world"}'
        })));
  });

  test('#send with an invalid URL', () {
    var client = http.Client();
    var url = Uri.parse('http://http.invalid');
    var request = http.StreamedRequest('POST', url);
    request.headers[HttpHeaders.contentTypeHeader] =
        'application/json; charset=utf-8';

    expect(client.send(request), throwsSocketException);

    request.sink.add('{"hello": "world"}'.codeUnits);
    request.sink.close();
  });

  test('sends a MultipartRequest with correct content-type header', () async {
    var client = http.Client();
    var request = http.MultipartRequest('POST', serverUrl);

    var response = await client.send(request);

    var bytesString = await response.stream.bytesToString();
    client.close();

    var headers = jsonDecode(bytesString)['headers'] as Map<String, dynamic>;
    var contentType = (headers['content-type'] as List).single;
    expect(contentType, startsWith('multipart/form-data; boundary='));
  });

  test('detachSocket returns a socket from an IOStreamedResponse', () async {
    var ioClient = HttpClient();
    var client = http_io.IOClient(ioClient);
    var request = http.Request('GET', serverUrl);

    var response = await client.send(request);
    var socket = await response.detachSocket();

    expect(socket, isNotNull);
  });
}