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test.rkt
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#lang racket
(require racket/pretty)
(require "driver.rkt")
(require "compiler.rkt")
(provide run-tests)
;; otherwise non-REPL usage of eval is totally broken
(define ns (make-base-namespace))
(parameterize ([current-namespace ns])
(namespace-require 'racket/list))
(define (for-racket-eval code)
(if (and (list? code) (list? (car code)))
(cons 'begin code)
code))
(define (test-case code (expect #f))
(let* ([expected (or expect (eval (for-racket-eval code) ns))]
[result
(with-handlers
([exn:fail?
(lambda (exn)
(eprintf "Execution failed for:~n~a~n"
(pretty-format code))
(raise exn))])
(compile-ret code))])
(unless (equal? result expected)
(raise-arguments-error 'test-case
"Obtained wrong result"
"code" code
"expected" expected
"result" result))))
(define (run-tests)
(let ([section #f])
(define (test-section s)
(displayln (format "Section: ~a" s))
(set! section s))
(test-section "Constant loading and returning")
(test-case '58 58)
(test-case '0 0)
(test-section "Non-numeric constants")
(test-case #t #t)
(test-case #f #f)
(test-case #\a #\a)
(test-case #\Z #\Z)
(test-case empty empty)
(test-section "Unary primitives")
(test-case '(- 9) -9)
(test-case '(- -9) 9)
(test-case '(bitwise-not 1))
(test-section "Binary primitives")
(test-case '(+ 3 5) 8)
(test-case '(+ (+ 3 5) 4) 12)
(test-case '(- 1 9))
(test-case '(- 1 (+ 3 9)))
(test-case '(bitwise-ior 6 1))
(test-case '(bitwise-and 17 1))
(test-section "Predicates")
(test-case '(zero? 9))
(test-case '(zero? 0))
(test-case '(integer? 0))
(test-case '(integer? #\a))
(test-case '(number? 0))
(test-case '(number? #\a))
(test-case '(boolean? #t))
(test-case '(boolean? #f))
(test-case '(boolean? 3))
(test-case '(boolean? empty))
(test-case '(char? #\y))
(test-case '(char? 9))
(test-case '(char? #t))
(test-case '(eq? 1 1))
(test-case '(eq? 1 3))
(test-case '(eq? (cons 1 empty) (cons 1 empty)))
(test-case '(empty? 3))
(test-case '(empty? empty))
(test-case '(empty? (cons 1 empty)))
(test-case '(null? 3))
(test-case '(null? empty))
(test-case '(null? (cons 1 empty)))
(test-case '(pair? empty))
(test-case '(pair? 1))
(test-case '(pair? (cons 1 3)))
(test-case '(procedure? +))
(test-case '(procedure? cons))
(test-case '(procedure? empty))
(test-case '(procedure? 8))
(test-section "Numerical operations")
(test-case '(negative? 256))
(test-case '(negative? 1))
(test-case '(negative? 0))
(test-case '(negative? -1))
(test-case '(negative? -256))
(test-case '(positive? 256))
(test-case '(positive? 1))
(test-case '(positive? 0))
(test-case '(positive? -1))
(test-case '(positive? -256))
(test-case '(odd? -1))
(test-case '(odd? 2))
(test-case '(odd? 0))
(test-case '(odd? 1))
(test-case '(even? -1))
(test-case '(even? 2))
(test-case '(even? 0))
(test-case '(even? 1))
;;(test-section "Lambdas")
;;(test-case '((lambda (n) (+ 5 n)) 9) (+ 5 9))
(test-section "Simple conditionals")
(test-case '(if (empty? empty) 1 99))
(test-case '(+ (if (empty? empty) 1 99)
(+ (if (zero? 1) 2000 20)
373)))
(test-section "Complex conditionals")
(test-case '(if (or (zero? 5) (and (zero? 0) (= 5 5))) 1 0))
(test-case '(if (not (zero? 7)) 100 2))
(test-section "Functions")
(test-case '((define (foo) 5) (+ 1 (foo))) 6)
(test-case '((define (foo n) (+ 5 n)) (+ 1 (foo 7))) 13)
(test-case
'(
(define (sum l acc)
(if (empty? l)
acc
(sum (cdr l)
(+ (car l) acc))))
(sum (cons 1 (cons 2 (cons 3 (cons 4 (cons 5 empty)))))
0)
)
15)
(test-section "First-class procedures")
(test-case
'(
(define (use f)
;; not in tail position
(+ (f 1 2) 9))
(use +)))
(test-case
'(
(define (use f)
;; in tail position
(f 1 2))
(use +)))
(displayln "All tests succeeded.")))
(module+ main
(run-tests))