单元测试以文件流的形势传参调用api进行测试

        [TestMethod]
        public void Test()
        {
            byte[] buffer;//文件转换为二进制流
            string path = @"E:aaa";
            Encoding code = Encoding.GetEncoding("utf-8");
            string[] files = Directory.GetFiles(path, "1.pdf");

            //把数组转换成流中所需字节数组类型
            FileStream stream = new FileInfo(files[0]).OpenRead();
            buffer = new byte[stream.Length];
            stream.Read(buffer, 0, Convert.ToInt32(stream.Length));

            //请求远程HTTP
            string strResult = "";
            try
            {
                //设置HttpWebRequest基本信息
                HttpWebRequest myReq = (HttpWebRequest)HttpWebRequest.Create(Api.TestUrl);
                myReq.Method = "post";
                myReq.ContentType = "application/octet-stream";


                //填充POST数据
                myReq.ContentLength = buffer.Length;
                Stream requestStream = myReq.GetRequestStream();
                requestStream.Write(buffer, 0, buffer.Length);
                requestStream.Close();

                //发送POST数据请求服务器
                HttpWebResponse HttpWResp = (HttpWebResponse)myReq.GetResponse();
                Stream myStream = HttpWResp.GetResponseStream();

                //获取服务器返回信息
                StreamReader reader = new StreamReader(myStream, code);
                StringBuilder responseData = new StringBuilder();
                String line;
                while ((line = reader.ReadLine()) != null)
                {
                    responseData.Append(line);
                }

                //释放
                myStream.Close();

                strResult = responseData.ToString();
            }
            catch (Exception exp)
            {
                strResult = "报错：" + exp.Message;
            }
        }

                  这个方法还是查询出来的，以免自己下次遇到忘记，记录了一下