A kind of integration testing in ASP.NET Core, with EF and AutoMapper

问题

I'm trying to test the path from my ASP.NET Core Controller to the DB, through repository which includes the usage of AutoMapper.

Here's my repository:

using System;
using System.Linq;
using AutoMapper;
using DS.DTO.MasterData;
using DS.Utilities.DSExceptions;
using Microsoft.Extensions.Logging;
using Omu.ValueInjecter;

namespace DS.MasterData.Repositories
{
    public class PersonFactRepository : IPersonFactRepository
    {
        private readonly Database.MasterDataContext dbContext;
        private readonly ILogger<PersonFactRepository> logger;
        private readonly IMapper mapper;
        public PersonFactRepository(ILogger<PersonFactRepository> logger, Database.MasterDataContext dbcontext, IMapper mapper)
        {
            this.dbContext = dbcontext;
            this.mapper = mapper;
            this.logger = logger;
        }

        public PatientDto CreatePatient(CreatePatientDto inModel)
        {
            var dbPersonDim = mapper.Map<CreatePatientDto, Database.PersonDim>(inModel);
            var dbAddressDim = mapper.Map<CreatePatientDto, Database.AddressDim>(inModel);
            var dbPhoneDim = mapper.Map<CreatePatientDto, Database.PhoneDim>(inModel);

            var dbPersonFact = new Database.PersonFact { FactId = Guid.NewGuid() };

            dbPersonDim.PersonFact = dbPersonFact;
            dbAddressDim.PersonFact = dbPersonFact;
            dbPhoneDim.PersonFact = dbPersonFact;

            dbPersonDim.InitDates();
            dbAddressDim.InitDates();
            dbPhoneDim.InitDates();

            dbContext.SaveChanges();

            var returnVal = new PatientDto();
            returnVal.InjectFrom(dbPersonDim)
                     .InjectFrom(dbAddressDim)
                     .InjectFrom(dbPhoneDim);

            return returnVal;
        }
    }
}

My AutoMapper configuration:

public class AutoMapperConfig : Profile
{
    public AutoMapperConfig()
    {
        CreateMap<CreatePatientDto, Database.PersonDim>(MemberList.None).ReverseMap();
        CreateMap<CreatePatientDto, Database.AddressDim>(MemberList.None).ReverseMap();
        CreateMap<CreatePatientDto, Database.PhoneDim>(MemberList.None).ReverseMap();
    }
}

My problem is how do I get my Mapper configuration into my fakeMapper?

var inMemDB = Fakes.FakeDB.DB;
var loggerCntl = Substitute.For<ILogger<Controllers.PatientController>>();
var loggerPersonFactRepo = Substitute.For<ILogger<Repositories.PersonFactRepository>>();

AutoMapper.IMapper fakeMapper = ????

var personRepo = new PersonFactRepository(loggerPersonFactRepo, inMemDB, fakeMapper);

It's on purpose that I'm going for a integration test, as I want my test to be able to post data to the controller and test if the right data ends up in the right tables.

回答1:

1. Create a mapper provider

   public class MapperProvider
   {
       public MapperProvider() { 
   
       }
       public MapperConfiguration GetMapperConfig()
       {
           var mce = new MapperConfigurationExpression();
           mce.AddProfile<AutoMapperConfig>();
           var mc = new MapperConfiguration(mce);
           return mc;
       }
   }
   

2. Register the mapping config

   AutoMapper.IMapper fakeMapper = new Mapper(new 
       MapperProvider().GetMapperConfig());
   

来源：https://stackoverflow.com/questions/50944862/a-kind-of-integration-testing-in-asp-net-core-with-ef-and-automapper