Unless it has any obvious visual defects, I would assume it’s good to go. Check the guides and the tip, ensure they are smooth and have no corrosion. Check the ferrules have a good fit. Take it outside and give it a few casts.
Looked it over well, and it's in great shape. I was paired with a Pflueger Medalist reel, and it is also in great shape. I'll do a little maintenance over the winter and replace the line and it'll be ready for next year. Can't wait to use it.