Comment se moquer de la méthode Subsonic ExecuteReader?

Question

J'ai une méthode qui appelle la procédure stockée et renvoie les données après l'exécution de DataReader. J'essaie de tester la méthode en utilisant maquette. Je ne suis pas sûr de savoir comment retourner de la valeur?

Quelqu'un a fait ceci? Appréciez vos réponses.

Voici mon code:

// Call the StoredProcedure 
    public List<string> GetCompletedBatchList(int fileId) 
    { 
     List<string> completedBatches = new List<string>(); 

     StoredProcedure sp = new StoredProcedure("GetDistributedBatches", this.dataProvider); 
     sp.Command.AddParameter("FileID", fileId, DbType.Int32, ParameterDirection.Input); 
     sp.Command.AddParameter("Result", null, DbType.Int32, ParameterDirection.InputOutput); 
     using (var rdr = sp.ExecuteReader()) 
     { 
      while (rdr != null && rdr.Read()) 
      { 
       if (rdr[0] != null) 
       { 
        completedBatches.Add(rdr[0].ToString()); 
       } 
      } 
     } 
     return completedBatches; 
    } 

Voici la méthode d'essai:

[Test] 
    public void Can_get_completedBatches() 
    { 
     var file = new File() { FileID = 1, DepositDate = DateTime.Now }; 
     repo.Add<File>(file); 

     CompletedBatches completedBatches = new CompletedBatches(provider.Object); 


     //Here I am not sure how to Return 
     provider.Setup(**x => x.ExecuteReader(It.IsAny<QueryCommand>())).Returns** => 
     { 
      cmd.OutputValues.Add(0); 
     }); 
     var completedBatchesList = completedBatches.GetCompletedBatchList(file.FileID); 
     Assert.AreEqual(0, completedBatchesList.Count()); 

    } 

Answer 1

Le lien suivant m'a aidé ... How to mock an SqlDataReader using Moq - Update

J'utilisé la méthode MockDbDataReader pour se moquer des données

[Test] 
     public void Can_get_completedBatches_return_single_batch() 
     { 
      var date = DateTime.Now; 
      var file = new File() { FileID = 202, DepositDate = DateTime.Now }; 
      var batch1 = new Batch() { FileID = 202, BatchID = 1767, LockboxNumber = "1", IsLocked = true, LockedBy = "testUser" }; 
      var transaction1 = new Transaction() { BatchID = 1767, TransactionID = 63423, CheckAmount = 100.0 }; 
      var distribution1 = new Distribution() { TransactionID = 63423, InvoiceNumber = "001", Amount = 100.0, DateCreated = date, DateModified = date, TransType = 2 }; 

      repo.Add<File>(file); 
      repo.Add<Batch>(batch1); 
      repo.Add<Transaction>(transaction1); 
      repo.Add<Distribution>(distribution1); 

      CompletedBatches completedBatches = new CompletedBatches(provider.Object); 

      provider.Setup(x => x.ExecuteReader(It.IsAny<QueryCommand>())).Returns(MockDbDataReader()); 

      var completedBatchesList = completedBatches.GetCompletedBatchList(202); 
      Assert.AreEqual(1, completedBatchesList.Count()); 

     } 


// You should pass here a list of test items, their data 
    // will be returned by IDataReader 
    private DbDataReader MockDbDataReader(List<TestData> ojectsToEmulate) 
    { 
     var moq = new Mock<DbDataReader>(); 

     // This var stores current position in 'ojectsToEmulate' list 
     int count = -1; 

     moq.Setup(x => x.Read()) 
      // Return 'True' while list still has an item 
      .Returns(() => count < ojectsToEmulate.Count - 1) 
      // Go to next position 
      .Callback(() => count++); 

     moq.Setup(x => x["BatchID"]) 
      // Again, use lazy initialization via lambda expression 
      .Returns(() => ojectsToEmulate[count].ValidChar); 

     return moq.Object; 
    } 

Answer 2

Si vous voulez créer un DataReader d'une certaine forme et la taille alors je vous suggère Regardez DataTable.CreateDataReader DataTable.CreateDataReader. Vous pouvez ensuite configurer ExecuteReader dans votre exemple pour renvoyer ce lecteur de données.