I bought Holly and Chloe from a commercial breeder. Although her dogs were well looked after and she would get veterinary treatment for them if necessary, she did not health test. When I knew somebody else was looking to get a dog from them I told them to ask if they were health tested. They got the answer that the vet had checked them and she knew they were healthy. Unless she had the gift of second sight, how could she know anything of the sort?