public void CheckMonobrendforExclude()
        {
            var  excludes = service.ShowExcludes().Content;
            var  exclude  = excludes.First();
            uint existsProducerId;

            // устанавливаем для продукта свойство монобренда
            using (var session = sessionFactory.OpenSession()) {
                var product = session.Load <Exclude>(exclude.Id).CatalogProduct;
                product.Monobrend = true;
                session.Save(product);
                var producer      = session.Query <Producer>().First();
                var newAssortment = new Assortment {
                    CatalogProduct = product,
                    Producer       = producer
                };
                session.Save(newAssortment);
                session.Flush();
                existsProducerId = producer.Id;
            }
            Assert.That(service.CheckProductIsMonobrend(exclude.Id, 0), Is.True);
            Assert.That(service.CheckProductIsMonobrend(exclude.Id, existsProducerId), Is.False);

            // возвращаем все назад, чтобы не ломать остальные тесты
            using (var session = sessionFactory.OpenSession()) {
                var product = session.Load <Exclude>(exclude.Id).CatalogProduct;
                product.Monobrend = false;
                session.Save(product);
                session.Flush();
            }
        }