通過模擬HttpWebRequest對HTTP發布請求進行單元測試方法

Question

我需要通過HTTP POST請求將數據導出為xml。 它是通過下面的代碼完成的，現在的問題是我想通過模擬http請求創建單元測試。 某些機構可以幫助我進行此單元測試嗎？

private string WriteBytesToHttp(ExportConfiguration exportConfiguration, byte[] bytes)
    {

        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(exportConfiguration.Endpoint.Address);
        Encoding encoding = exportConfiguration.Format.EncodingCodePage.ToEncoding();

        var contentType = string.IsNullOrEmpty(exportConfiguration.Format.ContentType)
            ? "text/plain"
            : exportConfiguration.Format.ContentType;

        request.ContentType = contentType;
        //request.ContentType = string.Format("{0}; charset={1}", contentType, encoding.HeaderName);
        request.ContentLength = bytes.Length;
        request.Method = "POST";

        if (!(string.IsNullOrEmpty(exportConfiguration.Endpoint.Username) ||
            string.IsNullOrEmpty(exportConfiguration.Endpoint.Password)))
        {
            var creditionStr = string.Format("{0}:{1}", exportConfiguration.Endpoint.Username,
                exportConfiguration.Endpoint.Password);

            request.Headers.Add("Authorization",
                "Basic " + Convert.ToBase64String(Encoding.Default.GetBytes(creditionStr)));
        }

        Stream newStream = request.GetRequestStream();
        newStream.Write(bytes, 0, bytes.Length);
        newStream.Close();

        HttpWebResponse response = (HttpWebResponse)request.GetResponse();
        Stream responseStream = response.GetResponseStream();

        var streamReader = string.IsNullOrEmpty(response.CharacterSet)
            ? new StreamReader(responseStream)
            : new StreamReader(responseStream, Encoding.GetEncoding(response.CharacterSet));

        string responseStr = streamReader.ReadToEnd();
        return String.IsNullOrEmpty(responseStr) ? response.StatusCode.ToString() : responseStr;

    }

Answer 1

我使用MockHttpServer服務來模擬HttpWebRequest請求和響應。 因此，我將能夠對代碼進行單元測試，而無需創建用於創建HttpWebReqeust的提取工廠。 下面是使用MockHttpService的單元測試代碼。

MockHttpService。

其他參考

    [Test]
    public void Http_Transport_ExportPG_Order()
    {
        var port = GetFreeTcpPort();
        var url = string.Format("http://localhost:{0}/api/ifs/import", port);
        ....................

        using (new MockServer(port, "api/ifs/import", (req, rsp, prm) => "Result Body"))
        {
            Wait.For<ExportDispatched>(() =>
                 Bus.Raise(new PutawayPlacedConfirmed(1, 2, 3)), null);
        }
    }