public async Task CompanyRegistrationNumberChange_ShouldReturnRuleResult()
        {
            var scheme   = SchemeWithXProducers(1);
            var schemeId = Guid.NewGuid();
            var error    = RuleResult.Fail("oops", ErrorLevel.Warning);

            A.CallTo(() => companyRegistrationNumberChange.Evaluate(scheme.producerList.Single())).Returns(error);

            var result = await XmlBusinessValidator().Validate(scheme, schemeId);

            Assert.Single(result);
            Assert.Equal(error, result.Single());
        }
        public async Task <IEnumerable <RuleResult> > Validate(schemeType scheme, Guid organisationId)
        {
            var result = new List <RuleResult>();

            // Xml validation only
            result.AddRange(duplicateProducerRegistrationNumbers.Evaluate(scheme));
            result.AddRange(duplicateProducerNames.Evaluate(scheme));

            // Now comparing against existing data...
            result.Add(correctSchemeApprovalNumber.Evaluate(scheme, organisationId));

            var producerObligationTypeChange = producerObligationTypeChangeDelegate(organisationId, scheme.complianceYear);

            // Validate producers
            foreach (var producer in scheme.producerList)
            {
                // Xml validation only
                result.Add(amendmentHasNoProducerRegistrationNumber.Evaluate(producer));
                result.Add(insertHasProducerRegistrationNumber.Evaluate(producer));
                result.Add(ukBasedAuthorisedRepresentative.Evaluate(producer));
                result.Add(producerNameWarning.Evaluate(scheme, producer, organisationId));
                result.Add(annualTurnoverMismatch.Evaluate(producer));
                result.Add(ensureAnOverseasProducerIsNotBasedInTheUK.Evaluate(producer));

                // Now comparing against existing data...
                result.Add(producerRegistrationNumberValidity.Evaluate(producer));
                result.Add(producerAlreadyRegistered.Evaluate(scheme, producer, organisationId));
                result.Add(producerNameAlreadyRegistered.Evaluate());
                result.Add(producerChargeBandChangeWarning.Evaluate(scheme, producer, organisationId));
                result.Add(companyAlreadyRegistered.Evaluate(producer));
                result.Add(companyRegistrationNumberChange.Evaluate(producer));
                result.Add(await producerObligationTypeChange.Evaluate(producer));
            }

            return(result.Where(r => r != null && !r.IsValid));
        }