Template:Birth date/testcases

Using year, month, day parameters
Day first

Wikidata tracking
Tested with preview of /sandbox in Wikipedia articles.

No category added:
 * 1) article with  in Wikidata: Gimena Accardi
 * 2) article without   in Wikidata: Russo brothers
 * 3) page not in article namespace: Template:No such name

Category added:
 * 1) article without  in Wikidata: Maria Abbey
 * 2) article without item in Wikidata: No such name