public async void GetByCompanyIdInvalid(string id)
        {
            List <Manufacturer> returnList = EntitiesFactory.GetManufacturerList();

            _manufacturedRepository.GetByCompanyId(id).Returns(returnList);

            IEnumerable <Manufacturer> result = await _manufacturerService.GetByCompanyId(id);

            result.Should().BeNull();
        }
        public async void ImportInvalid(string id, string companyId, string name, string country)
        {
            var manufacturedInvalid = EntitiesFactory.GetNewManufacturerParameterized(id, companyId, name, country);
            List <Manufacturer> manufacturedList = EntitiesFactory.GetManufacturerList();

            manufacturedList.Add(manufacturedInvalid);
            _manufacturedRepository.Import(manufacturedList).Returns(true);

            bool result = await _manufacturerService.Import(manufacturedList);

            result.Should().BeFalse();
        }