They can have you demonstrate a spin, but due to the fact that most people do their CFI-SEL as their initial, they are required to take the check ride in a complex aircraft, most of which are not certified for intentional spins. Go up with your instructor in a C152 or C172 or something and do some spins and have them give you a spin training endorsement.. If you have that you wont be required to demonstrate a spin on the check ride.