In Beginning Student mode I can to define a test before of the function:
(check-expect (double 2) 4)
(define (double n)
(* n 2))
In #lang racket, the next code fails:
(require rackunit)
(check-equal? (double 2) 4)
(define (double n)
(* n 2))
Is it possible to write the tests before of the functions in racket,
like in BS?
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