Test projects give you a way to exercise your code to see if it works but they're also part of your project's "permanent record." If all you want to do is try something out with some throwaway code, C ...

The SBExpress™ Gen5 software includes 900+ test scripts to enable IOL testing in the customer’s lab, before undergoing official testing, as well as ZNS, VDM, and TCG Opal verification.