I'm testing a PUT with two string:
company.CurrencyCode = request.CurrencyCode ?? company.CurrencyCode;
company.CountryIso2 = request.Country ?? company.CountryIso2;
and I tried with a rule like:
public UpdateCompanyValidator()
{
RuleSet(ApplyTo.Put, () =>
{
RuleFor(r => r.CountryIso2)
.Length(2)
.When(x => !x.Equals(null));
RuleFor(r => r.CurrencyCode)
.Length(3)
.When(x => !x.Equals(null));
});
}
as I don't mind to get a null on those properties, but I would like to test the Length when the property is not a null.
What is the best way to apply rules when a property is nullable and we just want to test if it's not null?
One of the ways would be:
public class ModelValidation : AbstractValidator<Model>
{
public ModelValidation()
{
RuleFor(x => x.Country).Must(x => x == null || x.Length >= 2);
}
}
I prefer the following syntax:
When(m => m.CountryIso2 != null,
() => {
RuleFor(m => m.CountryIso2)
.Length(2);
);
Best syntax for me:
RuleFor(t => t.DocumentName)
.NotEmpty()
.WithMessage("message")
.DependentRules(() =>
{
RuleFor(d2 => d2.DocumentName).MaximumLength(200)
.WithMessage(string.Format(stringLocalizer[""message""], 200));
});