public async Task GetUserAddressesWorksCorrectly() { var options = new DbContextOptionsBuilder<ApplicationDbContext>() .UseInMemoryDatabase(databaseName: Guid.NewGuid().ToString()).Options; var dbContext = new ApplicationDbContext(options); var repository = new EfDeletableEntityRepository<Address>(dbContext); var userId = Guid.NewGuid().ToString(); var address = new Address() { Id = 1, UserId = userId, }; var addressTwo = new Address() { Id = 2, UserId = userId, }; var addressThree = new Address() { Id = 3, UserId = Guid.NewGuid().ToString(), }; dbContext.Add(address); dbContext.Add(addressTwo); dbContext.Add(addressThree); await dbContext.SaveChangesAsync(); var service = new AddressesService(repository); var addresses = service.GetUserAddresses<AddressServiceModel>(userId); Assert.Equal(2, addresses.Count()); }