Pyret, a teaching language for CS, in the vein of Racket, does require testing by writing functions. https://pyret.org/docs/latest/testing.html https://pyret.o

Pyret, a teaching language for CS, in the vein of Racket, does require testing by writing functions. https://pyret.org/docs/latest/testing.html https://pyret.org/docs/latest/testing.html