Q.are jasmine plants poison to pets
will cats get sick from eating leaves of jasmine

Certified GKH Gardening Expert
In viewing research, I found so many different scientific names for the same common name of Star Jasmine. Some said the berries were toxic, some said the leaves, some said Jasmine was non-toxic.
You would need to know exactly which type you have. In the article below, the species is Jasminium species in the Family: Mimosaceae.
https://www.aspca.org/pet-care/animal-poison-control/toxic-and-non-toxic-plants/jasmine
The variety in the GKH article is Jasminum polyanthum
https://www.gardeningknowhow.com/ornamental/flowers/jasmine/growing-jasmine-indoors.htm