public static ISalesService GetSalesService()
 => new SalesService(
     LoggingHelper.GetLogger <SalesService>(),
     DbContextMocker.GetOnlineStoreDbContext(),
     new UserInfo("mocker")
     );
 public static IWarehouseService GetWarehouseService()
 => new WarehouseService(
     LoggingHelper.GetLogger <WarehouseService>(),
     DbContextMocker.GetOnlineStoreDbContext(),
     new UserInfo("mocker")
     );