MS偽でExecuteReaderをシムにする方法

Question

私は以下のメソッドを試そうとしていますが、接続が開いて利用可能であることを示すusing (var reader = command.ExecuteReader())という行にエラーが発生します。私はこのメソッドをシムと偽の読者を返すことができません。

public EmailTemplateFilterModel[] GetEmailTemplateFilters() 
     { 
      var filterList = new List<EmailTemplateFilterModel>(); 

      using (var connection = new SqlConnection(_clientConnString)) 
      using (var command = connection.CreateCommand("cspGetInvoiceTemplateFilterCollections")) 
      { 
       if (connection.State != ConnectionState.Open) 
        connection.Open(); 

       using (var reader = command.ExecuteReader()) 
       { 
        while (reader.Read()) 
        { 
         var filter = new EmailTemplateFilterModel 
         { 
          ParmId = (int)reader["InvoiceEmailMapParmId"], 
          ParmName = (string)reader["ParmName"], 
          DatabaseDataType = (string)reader["DbDataType"], 
          ControlType = (string)reader["ControlType"], 
          StoredValue = (string)reader["StoredValue"], 
          DisplayedValue = (string)reader["DisplayedValue"] 
         }; 

         filterList.Add(filter); 
        } 
       } 
      } 
      return filterList.ToArray(); 
     } 

ユニットテスト

[Test()] 
     public void GetEmailTemplateFiltersTest() 
     { 
      using (ShimsContext.Create()) 
      { 
       var rowCounter = 0; 

       //ARRANGE 
       ShimSqlConnection.AllInstances.Open = (sender) => { }; 
       ShimSqlConnection.AllInstances.StateGet = (sender) => { return ConnectionState.Open; }; 
       //ShimSqlCommand.AllInstances.ExecuteReader = (sender) => new Mock<SqlDataReader>().Object; 

       ShimSqlDataReader.ConstructorSqlCommandCommandBehavior = (@this, p1, p2) => 
       { 
        var shim = new ShimSqlDataReader(@this) 
        { 

         // ValueGet =() => -5 
        }; 
       }; 


       ShimSqlDataReader.AllInstances.Read = (sender) => 
       { 
        rowCounter++; 
        return rowCounter <= 2; 
       }; 

       ShimSqlDataReader.AllInstances.ItemGetString = (sender, coloumnName) => 
       { 
        if (rowCounter == 1) 
        { 
         switch (coloumnName) 
         { 
          case "InvoiceEmailMapParmId": 
           return 1; 
          case "ParmName": 
           return "Param1"; 
          default: 
           return "SomeStrigValue"; 
         } 
        } 
        else if (rowCounter == 2) 
        { 
         switch (coloumnName) 
         { 
          case "InvoiceEmailMapParmId": 
           return 1; 
          case "ParmName": 
           return "Param1"; 
          default: 
           return "SomeStrigValue"; 
         } 
        } 
        else 
        { 
         return string.Empty; 
        } 
       }; 

       //ACT 
       var filterList = _sut.GetEmailTemplateFilters(); 

       //ASSERT 
       Assert.That(filterList.Length, Is.EqualTo(rowCounter)); 

      } 
     } 

Answer 1

[Test()] 
     public void GetEmailTemplateFiltersTest() 
     { 
      using (ShimsContext.Create()) 
      { 
       #region ARRANGE 
       var rowCounter = 0; 

       ShimSqlConnection.AllInstances.Open = (sender) => { }; 
       ShimSqlConnection.AllInstances.StateGet = (sender) => ConnectionState.Open; 
       ShimSqlCommand.AllInstances.ExecuteReader = (sender) => new ShimSqlDataReader(); 
       ShimDbDataReader.AllInstances.Dispose = (sender) => { }; 
       ShimDbDataReader.AllInstances.DisposeBoolean = (sender, p1) => { }; 

       ShimSqlDataReader.AllInstances.Read = (sender) => 
       { 
        rowCounter++; 
        return rowCounter <= 2; 
       }; 

       ShimSqlDataReader.AllInstances.ItemGetString = (sender, coloumnName) => 
       { 
        if (rowCounter == 1) 
        { 
         switch (coloumnName) 
         { 
          case "InvoiceEmailMapParmId": 
           return 1; 
          case "ParmName": 
           return "Param1"; 
          default: 
           return "SomeStrigValue"; 
         } 
        } 
        else if (rowCounter == 2) 
        { 
         switch (coloumnName) 
         { 
          case "InvoiceEmailMapParmId": 
           return 1; 
          case "ParmName": 
           return "Param1"; 
          default: 
           return "SomeStrigValue"; 
         } 
        } 
        else 
        { 
         return string.Empty; 
        } 
       }; 
       #endregion 

       //ACT 
       var filterList = _sut.GetEmailTemplateFilters(); 

       //ASSERT 
       Assert.That(filterList.Length, Is.EqualTo(2)); 

      } 
     } 

をテストするために

方法