She smell checks almost every ingredient and never tastes. Best cat. Then she smells the end product and we're both like 'that's that done, then'.
Meanwhile, one of my parents cats refuses to eat wet food and will taste test it by dipping her paw into it and tasting what is on her paw, then usually decides it isn't what she likes and yeows for something else. She pretty much only eats Temptations Cat Treats.