Is there any other way to unit test business logic in mvc

Question

I added the unit test application to mvc5 manually. This is my business logic.

public void AddTreatments(TreatmentView model)
{
    using(var treatment = new TreatmentRepository())
    {
        var treat = new PhysiqueData.ModelClasses.Treatment()
        {
            treatmentID = model.treatmentID,
            treatmentCost = model.treatmentCost,
            treatmentDuration = model.treatmentDuration,
            treatmentName = model.treatmentName
        }
        treatment.Insert(treat);
    }
}

This is my service level repository.

public class TreatmentRepository:ITreatmentRepository
{
    private ApplicationDbContext _datacontext;
    private readonly IRepository<Treatment> _treatmentRepository;

    public TreatmentRepository()
    {
        _datacontext = new ApplicationDbContext();
        _treatmentRepository = new RepositoryService<Treatment>(_datacontext);
    }

    public void Insert(Treatment model)
    {
        _treatmentRepository.Insert(model);
    }
}

The following code is my actual unit test for my treatment, and it does not work, please, I can get some recommendations about this. I googled a lot of things and still can't figure it out.

[TestClass]
public class UnitTest1
{
    [TestMethod]
    public void AddingTreatmenttodatabase()
    {
        //var business = new TreatmentBusiness(new TreatmentRepository());

        var treatment = new Treatment()
        {
            treatmentID = 1,
            treatmentCost = 250,
            treatmentDuration = 45,
            treatmentName = "LowerBack"
        };

        var repositoryMock = new Mock<ITreatmentRepository>();
        repositoryMock.Setup(x => x.Insert(treatment));

        var business = new TreatmentBusiness(repositoryMock.Object);

        business.AddTreatments(treatment);

        repositoryMock.Verify(x => x.Insert(treatment), Times.Once());
    }
}

Answer 1

So, you create a layout ITreatmentRepositoryby customizing some kind of behavior and inject it into your class TreatmentBusiness. So far, so good.

But then in your method AddTreatmentsyou create a new one TreatmentRepositoryinstead of using the one that is introduced through the constructor.

, :

public class TreatmentBusiness
{
    private readonly ITreatmentRepository repository;

    public TreatmentBusiness(ITreatmentRepository repository)
    {
        this.repository = repository;
    }

    ...
}

:

public void AddTreatments(TreatmentView model)
{
    using (var treatment= this.repository)
    {
        var treat = new PhysiqueData.ModelClasses.Treatment();
        {
            treat.treatmentID = model.treatmentID;
            treat.treatmentCost = model.treatmentCost;
            treat.treatmentDuration = model.treatmentDuration;
            treat.treatmentName = model.treatmentName;
        }
        treatment.Insert(treat);
    }
}

repository, .

Jimmy_keen, , factory.

factory, factory, , :

public class TreatmentBusiness
{
    private readonly ITreatmentRepositoryFactory repositoryFactory;

    public TreatmentBusiness(ITreatmentRepositoryFactory repositoryFactory)
    {
        this.repositoryFactory = repositoryFactory;
    }

    ...
}

:

public void AddTreatments(TreatmentView model)
{
    using (var treatment= this.repositoryFactory.Make())
    //or whatever method name you've chosen on your factory

, , (Func<>) , TreatmentRepository.

:

public class TreatmentBusiness
{
    private readonly Func<TreatmentRepository> getTreatmentRepository;

    public TreatmentBusiness(Func<TreatmentRepository> getTreatmentRepository)
    {
            this.getTreatmentRepository = getTreatmentRepository;
    }
    ....
}

:

public void AddTreatments(string model)
{
    using (var treatment = this.getTreatmentRepository()) //Or this.getTreatmentRepository.Invoke() - same thing
    {
        ...
    }
}

, , , , , Business:

var treatmentBusiness = new TreatmentBusiness(() => new TreatmentRepository());

IoC/ DI .