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tests-2.4-req.scm
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(add-tests-with-string-output "letrec"
[(letrec () 12) => "12\n"]
[(letrec ([f 12]) f) => "12\n"]
[(letrec ([f 12] [g 13]) (fx+ f g)) => "25\n"]
[(letrec ([fact
(lambda (n)
(if (fxzero? n)
1
(fx* n (fact (fxsub1 n)))))])
(fact 5)) => "120\n"]
[(letrec ([f 12] [g (lambda () f)])
(g)) => "12\n"]
[(letrec ([f 12] [g (lambda (n) (set! f n))])
(g 130)
f) => "130\n"]
[(letrec ([f (lambda (g) (set! f g) (f))])
(f (lambda () 12))) => "12\n"]
[(letrec ([f (cons (lambda () f)
(lambda (x) (set! f x)))])
(let ([g (car f)])
((cdr f) 100)
(g))) => "100\n"]
[(letrec ([f (letrec ([g (lambda (x) (fx* x 2))])
(lambda (n) (g (fx* n 2))))])
(f 12)) => "48\n"]
[(letrec ([f (lambda (f n)
(if (fxzero? n)
1
(fx* n (f f (fxsub1 n)))))])
(f f 5)) => "120\n"]
[(let ([f (lambda (f)
(lambda (n)
(if (fxzero? n)
1
(fx* n (f (fxsub1 n))))))])
(letrec ([fix
(lambda (f)
(f (lambda (n) ((fix f) n))))])
((fix f) 5))) => "120\n"]
)
(add-tests-with-string-output "letrec*"
[(letrec* () 12) => "12\n"]
[(letrec* ([f 12]) f) => "12\n"]
[(letrec* ([f 12] [g 13]) (fx+ f g)) => "25\n"]
[(letrec* ([fact
(lambda (n)
(if (fxzero? n)
1
(fx* n (fact (fxsub1 n)))))])
(fact 5)) => "120\n"]
[(letrec* ([f 12] [g (lambda () f)])
(g)) => "12\n"]
[(letrec* ([f 12] [g (lambda (n) (set! f n))])
(g 130)
f) => "130\n"]
[(letrec* ([f (lambda (g) (set! f g) (f))])
(f (lambda () 12))) => "12\n"]
[(letrec* ([f (cons (lambda () f)
(lambda (x) (set! f x)))])
(let ([g (car f)])
((cdr f) 100)
(g))) => "100\n"]
[(letrec* ([f (letrec* ([g (lambda (x) (fx* x 2))])
(lambda (n) (g (fx* n 2))))])
(f 12)) => "48\n"]
[(letrec* ([f (lambda (f n)
(if (fxzero? n)
1
(fx* n (f f (fxsub1 n)))))])
(f f 5)) => "120\n"]
[(let ([f (lambda (f)
(lambda (n)
(if (fxzero? n)
1
(fx* n (f (fxsub1 n))))))])
(letrec* ([fix
(lambda (f)
(f (lambda (n) ((fix f) n))))])
((fix f) 5))) => "120\n"]
[(letrec* ([a 12] [b (fx+ a 5)] [c (fx+ b a)])
c) => "29\n"]
)
(add-tests-with-string-output "and/or"
[(and) => "#t\n"]
[(and 5) => "5\n"]
[(and #f) => "#f\n"]
[(and 5 6) => "6\n"]
[(and #f ((lambda (x) (x x)) (lambda (x) (x x)))) => "#f\n"]
[(or) => "#f\n"]
[(or #t) => "#t\n"]
[(or 5) => "5\n"]
[(or 1 2 3) => "1\n"]
[(or (cons 1 2) ((lambda (x) (x x)) (lambda (x) (x x)))) => "(1 . 2)\n"]
[(let ([if 12]) (or if 17)) => "12\n"]
[(let ([if 12]) (and if 17)) => "17\n"]
[(let ([let 8]) (or let 18)) => "8\n"]
[(let ([let 8]) (and let 18)) => "18\n"]
[(let ([t 1])
(and (begin (set! t (fxadd1 t)) t) t)) => "2\n"]
[(let ([t 1])
(or (begin (set! t (fxadd1 t)) t) t)) => "2\n"]
)
(add-tests-with-string-output "when/unless"
[(let ([x (cons 1 2)])
(when (pair? x)
(set-car! x (fx+ (car x) (cdr x))))
x) => "(3 . 2)\n"]
[(let ([x (cons 1 2)])
(when (pair? x)
(set-car! x (fx+ (car x) (cdr x)))
(set-car! x (fx+ (car x) (cdr x))))
x) => "(5 . 2)\n"]
[(let ([x (cons 1 2)])
(unless (fixnum? x)
(set-car! x (fx+ (car x) (cdr x))))
x) => "(3 . 2)\n"]
[(let ([x (cons 1 2)])
(unless (fixnum? x)
(set-car! x (fx+ (car x) (cdr x)))
(set-car! x (fx+ (car x) (cdr x))))
x) => "(5 . 2)\n"]
[(let ([let 12])
(when let let let let let)) => "12\n"]
[(let ([let #f])
(unless let let let let let)) => "#f\n"]
)
(add-tests-with-string-output "cond"
[(cond [1 2] [else 3]) => "2\n"]
[(cond [1] [else 13]) => "1\n"]
[(cond [#f #t] [#t #f]) => "#f\n"]
[(cond [else 17]) => "17\n"]
[(cond [#f] [#f 12] [12 13]) => "13\n"]
[(cond [(cons 1 2) => (lambda (x) (cdr x))]) => "2\n"]
[(let ([else #t])
(cond
[else 1287])) => "1287\n"]
[(let ([else 17])
(cond
[else])) => "17\n"]
[(let ([else 17])
(cond
[else => (lambda (x) x)])) => "17\n"]
[(let ([else #f])
(cond
[else ((lambda (x) (x x)) (lambda (x) (x x)))])
else) => "#f\n"]
[(let ([=> 12])
(cond
[12 => 14]
[else 17])) => "14\n"]
[(let ([=> 12])
(cond
[=>])) => "12\n"]
[(let ([=> 12])
(cond
[=> =>])) => "12\n"]
[(let ([=> 12])
(cond
[=> => =>])) => "12\n"]
[(let ([let 12])
(cond
[let => (lambda (x) (fx+ let x))]
[else 14])) => "24\n"]
)