I'd really like to be able to test my attributes that should have a sequence of numbers 1-n where I'd like every number not necessarily in order but in the sequence so that I know if I've lost a feature along the way somewhere.
I tried to achieve this using the In Range rule with an upper limit of a combination of @count() and max(@count()) but to no avail.
Otherwise I can use a StatisticsCalculator and Tester do this but it would be great to be able to do this in the Validator.
