public async Task UpdateUniqueValueKeyTest()
        {
            var tableName = RandomTableNameName();

            Console.WriteLine($"Table name for this test: {tableName}");

            var service = new TableStorageUniqueService(connString, tableName);

            service.Init();

            const string ContractorVatNrInCountryForCompanyAccount = "ContractorVatNrInCountryForCompanyAccount";

            var companyAccountId = Guid.NewGuid();
            var countryCode      = "PL";
            var vatNumber        = "8971649500";

            var contractorId = new TestId(Guid.NewGuid());

            var value = String.Format("{0}:{1}:{2}", companyAccountId.ToString("N"), countryCode, vatNumber);

            var id = await service.GetOrAddUniqueValueKey(ContractorVatNrInCountryForCompanyAccount, value, contractorId);

            if (!id.Equals(contractorId))
            {
                Assert.Fail();
            }

            var updatedValue = String.Format("{0}:{1}:{2}", companyAccountId.ToString("N"), countryCode, "8971649501");

            var id2 = await service.UpdateUniqueValueKey(ContractorVatNrInCountryForCompanyAccount, value, updatedValue, contractorId, 5);

            if (!id2.Equals(contractorId))
            {
                Assert.Fail();
            }


            var contractorId2 = new TestId(Guid.NewGuid());

            var task1 = service.UpdateUniqueValueKey(ContractorVatNrInCountryForCompanyAccount, updatedValue, value, contractorId, 5);
            var task2 = service.GetOrAddUniqueValueKey(ContractorVatNrInCountryForCompanyAccount, value, contractorId2);
            var t     = await TaskEx.WhenAll(task1, task2);

            if (!t.Item1.Equals(contractorId))
            {
                Assert.Fail();
            }

            if (t.Item2.Equals(contractorId2))
            {
                Assert.Fail();
            }
        }
		public async Task UpdateUniqueValueKeyTest()
		{
			var tableName = RandomTableNameName();
			Console.WriteLine($"Table name for this test: {tableName}");

			var service = new TableStorageUniqueService(connString, tableName);
			service.Init();

			const string ContractorVatNrInCountryForCompanyAccount = "ContractorVatNrInCountryForCompanyAccount";

			var companyAccountId = Guid.NewGuid();
			var countryCode = "PL";
			var vatNumber = "8971649500";

			var contractorId = new TestId(Guid.NewGuid());

			var value = String.Format("{0}:{1}:{2}", companyAccountId.ToString("N"), countryCode, vatNumber);

			var id = await service.GetOrAddUniqueValueKey(ContractorVatNrInCountryForCompanyAccount, value, contractorId);

			if (!id.Equals(contractorId))
			{
				Assert.Fail();
			}

			var updatedValue = String.Format("{0}:{1}:{2}", companyAccountId.ToString("N"), countryCode, "8971649501");

			var id2 = await service.UpdateUniqueValueKey(ContractorVatNrInCountryForCompanyAccount, value, updatedValue, contractorId, 5);

			if (!id2.Equals(contractorId))
			{
				Assert.Fail();
			}


			var contractorId2 = new TestId(Guid.NewGuid());

			var task1 = service.UpdateUniqueValueKey(ContractorVatNrInCountryForCompanyAccount, updatedValue, value, contractorId, 5);
			var task2 = service.GetOrAddUniqueValueKey(ContractorVatNrInCountryForCompanyAccount, value, contractorId2);
			var t = await TaskEx.WhenAll(task1, task2);

			if (!t.Item1.Equals(contractorId))
			{
				Assert.Fail();
			}

			if (t.Item2.Equals(contractorId2))
			{
				Assert.Fail();
			}
		}