public async Task TestGetById() { var options = new DbContextOptionsBuilder <ApplicationDbContext>() .UseInMemoryDatabase(databaseName: Guid.NewGuid().ToString()).Options; var moqSe = new Mock <ISettingsService>(); var repository = new EfRepository <Address>(new ApplicationDbContext(options)); var service = new AddressesService(repository); var addres = new Address() { Id = 1, }; await repository.AddAsync(addres); await repository.SaveChangesAsync(); var res = service.GetAddresById(1); Assert.Equal(addres, res); }