Ndtyjky

I am doing a Mock of a class, with Moq framework. However, I am not able to grab or call the Class's methods. How would I resolve this issue in the unit test below? Trying to compile program to extract the methods in Moq in class. Error is listed below.

Class:

using System;

using ElectronicsStore.Models;

using Microsoft.Extensions.Logging;



namespace ElectronicsStore.Service

{

    public class ParseVendorSupply

    {

        private readonly ILogger _logger;



        public ParseVendorSupply(ILogger logger)

        {

            _logger = logger;

        }



        public VendorSupply FromCsv(string csvLine)

        {

            VendorSupply vendorsupply = new VendorSupply();



            try

            {

                string values = csvLine.Split(',');

                if (values.Length > 3)

                {

                    throw new System.ArgumentException("Too much data");

                }



                vendorsupply.VendorId = Convert.ToInt16(values[0]);

                vendorsupply.ProductId = Convert.ToInt16(values[1]);

                vendorsupply.Quantity = Convert.ToInt16(values[2]);

            }

            catch (Exception)

            {

                _logger.LogInformation("An exception was thrown attempting");

            }

            return vendorsupply;

        }       

    }

}



public Startup(IConfiguration configuration, ILogger<Startup> logger)

{

    Configuration = configuration;

    _logger = logger;

 }



public void ConfigureServices(IServiceCollection services)

{

     services.AddSingleton(new LoggerFactory().AddConsole().AddDebug());

     services.AddLogging();

NUnit Test:

public class ParseVendorSupplyNunit

{



    [Test]

    public void FromCsv_ParseCorrectly_Extradata()

    {

        var logger = new Mock<ILogger>();

        Mock<ParseVendorSupply> parseVendorSupplytest = new Mock<ParseVendorSupply>(logger);

        var test = new Mock<ParseVendorSupply>(logger);

        string csvLineTest = "5,8,3,9,5";



       parseVendorSupplytest.FromCsv

       // Receive error: Mock<ParseVendorSupply>' does not contain a definition for 'FromCsv' and no accessible extension method 'FromCsv' accepting a first argument of type 'Mock<ParseVendorSupply>' could be found (are you missing a using directive or an assembly reference?)



    }

Moq exposes the mocked object through the .Object property. So in your case, you could do:

parseVendorSupplytest.Object.FromCsv(csvLineTest);

That said. I'm not sure this is what you wanted to do in first place. Assuming you're trying to test ParseVendorSupply using a mocked logger, I believe your code should look like:

[Test]

public void FromCsv_ParseCorrectly_Extradata()

{

    var logger = new Mock<ILogger>();

    var parseVendorSupply = new ParseVendorSupply(logger.Object);



    string csvLineTest = "5,8,3,9,5";



    var result = parseVendorSupplytest.FromCsv(csvLineTest);



   // Add your assertions here 

}

Also note that you can use the Mock.Of<T>() shortcut to directly retrieve the mocked object if you don't need any setup:

var parseVendorSupply = new ParseVendorSupply(Mock.Of<ILogger>());