public async Task CreateAsyncWorksCorrectly()
{
var options = new DbContextOptionsBuilder <ApplicationDbContext>()
.UseInMemoryDatabase(databaseName: Guid.NewGuid().ToString()).Options;
var dbContext = new ApplicationDbContext(options);
var addressesService = new Mock <IAddressesService>();
var repository = new EfDeletableEntityRepository <City>(dbContext);
var service = new CitiesService(repository, addressesService.Object);
await service.CreateAsync("1", 1);
var result = dbContext.Cities.FirstOrDefault(c => c.Name == "1");
Assert.NotNull(result);
}