如何Moq FtpDataStream

Question

我編寫一個FTP客戶端應用程序，通過nunit工具測試我的功能。我嘗試模擬FTP數據流。 GetAllCsvFilesFromFTP方法調用FtpConnect（）方法，但是在測試時我想在不連接FTP服務器的情況下獲取Stream數據。

public List<string> GetAllCsvFilesFromFTP() 
    { 
     var files = new List<string>(); 
     var responseStream = _ftpConnection.FtpConnect(WebRequestMethods.Ftp.ListDirectory); 
     if (responseStream != null) 
     { 
      var reader = new StreamReader(responseStream); 
      ReadResponseStream(files, reader); 
      reader.Close(); 
      responseStream.Close(); 
     } 
     return files.OrderByDescending(p => p).ToList(); 
    } 
    public Stream FtpConnect(string connectionType, string fileName = "") 
    { 
     try 
     { 
      var request = (FtpWebRequest)WebRequest.Create(_readConfigXml.FtpUrl + fileName); 
      request.Credentials = new NetworkCredential(_readConfigXml.UserName, _readConfigXml.PassWord); 
      request.UsePassive = true; 
      request.UseBinary = true; 
      request.KeepAlive = true; 
      request.Method = connectionType; 
      var response = (FtpWebResponse) request.GetResponse(); 
      var stream = response.GetResponseStream(); 
      return stream; 
     } 
     catch (Exception ex) 
     { 
      _logWriter.WriteLog(_readConfigXml.LogPath, ex.Message); 
      return null; 
     } 
    } 

我嘗試模擬測試的安裝方法在下面： _ftpConnection.Setup（M => m.FtpConnect（It.IsAny（），It.IsAny（）））返回;（？）

你能幫我關於我如何模擬退貨數據。

Answer 1

string csvdata = "1,2,3,4,5": 
var ms = new MemoryStream(Encoding.UTF8.GetBytes(csvdata)); 
ms.Position = 0; 
_ftpConnection.Setup(m => m.FtpConnect(It.IsAny(), It.IsAny())).Returns(ms);