protected override ValidationResult IsValid(object value, ValidationContext validationContext)
{
try
{
CustomerFormViewModel customer = (CustomerFormViewModel)validationContext.ObjectInstance;
MembershipAgeRequirements ageRequirements = new MembershipAgeRequirements();
BusinessRulesResult rulesResult = ageRequirements.IsCustomerAgeAcceptable(customer.MembershipTypeId, customer.BirthDate);
return((rulesResult.IsErrored == true)
? new ValidationResult(rulesResult.ErrorMessage)
: ValidationResult.Success);
}
catch (InvalidCastException exception)
{
string message = "MembershipAgeValidation use is relegated to CustomerFormViewModel.";
Debug.Assert(false, message);
Debug.Assert(false, exception.Message);
throw new ValidationException(message);
}
catch (Exception exception)
{
Debug.Assert(false, "MembershipAgeValidation unknown exception.");
Debug.Assert(false, exception.Message);
throw;
}
}
public void RequiredAndUnacceptableAge()
{
int membershipType = MembershipType.Monthly;
DateTime customerBirthDate = new DateTime(2018, 8, 28);
MembershipAgeRequirements requirements = new MembershipAgeRequirements();
BusinessRulesResult result = requirements.IsCustomerAgeAcceptable(membershipType, customerBirthDate);
Assert.IsTrue(result.IsErrored);
membershipType = MembershipType.Quarterly;
result = requirements.IsCustomerAgeAcceptable(membershipType, customerBirthDate);
Assert.IsTrue(result.IsErrored);
membershipType = MembershipType.Yearly;
result = requirements.IsCustomerAgeAcceptable(membershipType, customerBirthDate);
Assert.IsTrue(result.IsErrored);
}
public void NotRequired()
{
int membershipType = MembershipType.PayAsYouGo;
MembershipAgeRequirements requirements = new MembershipAgeRequirements();
BusinessRulesResult result = requirements.IsCustomerAgeAcceptable(membershipType, null);
Assert.IsFalse(result.IsErrored);
DateTime customerBirthDate = new DateTime(2018, 8, 28);
result = requirements.IsCustomerAgeAcceptable(membershipType, customerBirthDate);
Assert.IsFalse(result.IsErrored);
customerBirthDate = new DateTime(1960, 8, 28);
result = requirements.IsCustomerAgeAcceptable(membershipType, customerBirthDate);
Assert.IsFalse(result.IsErrored);
}