Added unit tests

This commit is contained in:
Justin Ethier 2018-01-18 18:40:18 -05:00
parent bf9591c451
commit 7710bbfd9d

View file

@ -1,65 +1,112 @@
(import (scheme base) (scheme write) (scheme cyclone pretty-print)) (import
(scheme base)
(scheme write)
(scheme cyclone test)
(scheme cyclone pretty-print))
(write (define (output sexp)
((lambda (x) x) 1)) (write sexp)
(newline))
(write (test-group
"basic lambda bindings"
(test 1 ((lambda (x) x) 1)))
(test-group
"macro hygiene"
(test
'outer
(let ((x 'outer)) (let ((x 'outer))
(let-syntax ((m (syntax-rules () ((m) x)))) (let-syntax ((m (syntax-rules () ((m) x))))
(let ((x 'inner)) (let ((x 'inner))
(m)))) ;; Should be outer (m)))) ;; Should be outer
) )
;;;; Just testing, may want to remove this one once the recursive macro expansion works (test
;;; (define-syntax my-or2 (syntax-rules () 'outer
;;; ((my-or2) #f) (let ((x 'outer))
;;; ((my-or2 e) e) (letrec-syntax ((m (syntax-rules () ((m) x))))
;;; ((my-or2 e1 e2 ...) (let ((x 'inner))
;;; (let ((temp e1)) (if temp temp (my-or2 e2 ...)))))) (m)))) ;; Should be outer
;;;(write (my-or2 #t)) )
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; (test
;; 'outer
;;; (define-syntax my-or (syntax-rules () (let ((x 'outer))
;;; ((my-or) #f) (define-syntax m ;; Testing this out, but let-syntax needs to work, too
;;; ((my-or e) e) (syntax-rules () ((m) x)))
;;; ((my-or e1 e2 ...) (let ((x 'inner))
;;; (let ((temp e1)) (if temp temp (my-or e2 ...)))))) (m))) ;; Should be outer
;;; (write )
;;; (let ((x #f) (test
;;; (y 7) 'now
;;; (temp 8) (let-syntax ((given-that (syntax-rules ()
;;; (my-let odd?) ((given-that test stmt1 stmt2 ...)
;;; (my-if even?)) (if test
;;; (my-or x (my-let temp) (my-if y) y))) ;; ==> 7 (begin stmt1
;;; stmt2 ...))))))
;;; (define-syntax foo (syntax-rules () (let ((if #t))
;;; ((_ b) (given-that if (set! if 'now))
;;; (bar a b)))) if))) ;; => now
;;; (define-syntax bar (syntax-rules () ((_ c d) #;(test
;;; (cons c (let ((c 3)) 7
;;; (list d c 'c)))))) (let ((x #f)
;;; (write (y 7)
;;; (let ((a 2)) (temp 8)
;;; (foo a))) (my-let odd?)
;; (if even?))
;;;; Chibi also fails with the same error when this is a let-synatx macro, (or x (my-let temp) (if y) y))) ;; ==> 7
;;;; so it may be that Cyclone works just fine here! Obviously it needs )
;;;; to be able to handle this macro in letrec-syntax form, though
;;#;(let-syntax ;; ;;;; Just testing, may want to remove this one once the recursive macro expansion works
;; ((my-or (syntax-rules () ;; ;;; (define-syntax my-or2 (syntax-rules ()
;; ((my-or) #f) ;; ;;; ((my-or2) #f)
;; ((my-or e) e) ;; ;;; ((my-or2 e) e)
;; ((my-or e1 e2 ...) ;; ;;; ((my-or2 e1 e2 ...)
;; (let ((temp e1)) (if temp temp (my-or e2 ...))))))) ;; ;;; (let ((temp e1)) (if temp temp (my-or2 e2 ...))))))
;; (let ((x #f) ;; ;;;(write (my-or2 #t))
;; (y 7) ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; (temp 8) ;; ;;
;; (my-let odd?) ;; ;;; (define-syntax my-or (syntax-rules ()
;; (my-if even?)) ;; ;;; ((my-or) #f)
;; (my-or x (my-let temp) (my-if y) y))) ;; ==> 7 ;; ;;; ((my-or e) e)
;; ;; ;;; ((my-or e1 e2 ...)
;;;; TODO: below should work with "let" and "if" instead of "my-let" and "my-if" ;; ;;; (let ((temp e1)) (if temp temp (my-or e2 ...))))))
;;;; TODO: below does not work in eval - WTF? ;; ;;; (write
;;(write ;; ;;; (let ((x #f)
;; ;;; (y 7)
;; ;;; (temp 8)
;; ;;; (my-let odd?)
;; ;;; (my-if even?))
;; ;;; (my-or x (my-let temp) (my-if y) y))) ;; ==> 7
;; ;;;
;; ;;; (define-syntax foo (syntax-rules ()
;; ;;; ((_ b)
;; ;;; (bar a b))))
;; ;;; (define-syntax bar (syntax-rules () ((_ c d)
;; ;;; (cons c (let ((c 3))
;; ;;; (list d c 'c))))))
;; ;;; (write
;; ;;; (let ((a 2))
;; ;;; (foo a)))
;; ;;
;; ;;;; Chibi also fails with the same error when this is a let-synatx macro,
;; ;;;; so it may be that Cyclone works just fine here! Obviously it needs
;; ;;;; to be able to handle this macro in letrec-syntax form, though
;; ;;#;(let-syntax
;; ;; ((my-or (syntax-rules ()
;; ;; ((my-or) #f)
;; ;; ((my-or e) e)
;; ;; ((my-or e1 e2 ...)
;; ;; (let ((temp e1)) (if temp temp (my-or e2 ...)))))))
;; ;; (let ((x #f)
;; ;; (y 7)
;; ;; (temp 8)
;; ;; (my-let odd?)
;; ;; (my-if even?))
;; ;; (my-or x (my-let temp) (my-if y) y))) ;; ==> 7
;; ;;
;; ;;;; TODO: below should work with "let" and "if" instead of "my-let" and "my-if"
;; ;;;; TODO: below does not work in eval - WTF?
;; (output
;; (letrec-syntax ;; (letrec-syntax
;; ((my-or (syntax-rules () ;; ((my-or (syntax-rules ()
;; ((my-or) #f) ;; ((my-or) #f)
@ -74,102 +121,89 @@
;; (my-or x (my-let temp) (my-if y) y))) ;; ==> 7 ;; (my-or x (my-let temp) (my-if y) y))) ;; ==> 7
;; ) ;; )
;; ;;
;;
;;;; From Chibi - isn't this a bug though?
;;;(write
;;;(let ()
;;; (letrec-syntax ()
;;; (define internal-def 'ok))
;;; internal-def)
;;;)
;;
;;;; From Husk:
;; ;; ;; ;;
;;; Examples from the source to R5RS pitfall 3.3 ;; ;;;; From Chibi - isn't this a bug though?
;;;; (assert/equal ;; ;;;(write
;;;; (let ((a 1)) ;; ;;;(let ()
;;;; (letrec-syntax ;; ;;; (letrec-syntax ()
;; ;;; (define internal-def 'ok))
;; ;;; internal-def)
;; ;;;)
(test-group
"pitfalls and corner cases"
;; ;;;; From Husk:
;; ;;;;
;; ;;; Examples from the source to R5RS pitfall 3.3
;; ;;;; (assert/equal
(test
'(1 2 3 a$273)
;'(1 2 3 a)
(let ((a 1))
(letrec-syntax
((foo (syntax-rules ()
((_ b)
(bar a b))))
(bar (syntax-rules ()
((_ c d)
(cons c (let ((c 3))
(list d c 'c)))))))
(let ((a 2))
(foo a)))))
;;;; ; Examples from/based on pitfall 8.3 (assert/equal 1
(test
1
(let ((x 1))
(let-syntax ((foo (syntax-rules () ((_) 2))))
(define x (foo))
3)
x))
(test
1
(let ((x 1))
(letrec-syntax ((foo (syntax-rules () ((_) 2)))) (define x (foo))
3)
x))
;;;; ; Issue #151 - Preserve hygiene across syntax-rules and ER macros
(test
'((unquote (quote bar)))
(let ((unquote 'foo)) `(,'bar))
'(,'bar))
)
;; ;;
;; ;;#;(let ((a 1))
;; ;; (let-syntax
;; ;; ;;(letrec-syntax
;; ;; ((foo (syntax-rules () ;; ;; ((foo (syntax-rules ()
;; ;; ((_ b) ;; ;; ((_ b)
;; ;; (bar a b)))) ;; ;; (bar a b))))
;;;; (bar (syntax-rules () ;; ;; (bar (syntax-rules () ((_ c d)
;;;; ((_ c d)
;; ;; (cons c (let ((c 3)) ;; ;; (cons c (let ((c 3))
;; ;; (list d c 'c))))))) ;; ;; (list d c 'c)))))))
;; ;; (let ((a 2)) ;; ;; (let ((a 2))
;; ;; (foo a)))) ;; ;; (foo a))))
;;;; '(1 2 3 a))
;; ;; ;; ;;
;;;; ; Examples from/based on pitfall 8.3 (assert/equal 1
;;;; (let ((x 1))
;;;; (let-syntax ((foo (syntax-rules () ((_) 2))))
;;;; (define x (foo))
;;;; 3)
;;;; x))
;;;; (assert/equal 1
;;;; (let ((x 1))
;;;; (letrec-syntax ((foo (syntax-rules () ((_) 2)))) (define x (foo))
;;;; 3)
;;;; x))
;; ;; ;; ;;
;;;; ; Issue #151 - Preserve hygiene across syntax-rules and ER macros ;; ;;(define-syntax my-let
;;;; (assert/equal ;; ;; (syntax-rules
;;;; (let ((unquote 'foo)) `(,'bar)) ;; ;; ()
;;;; '(,'bar)) ;; ;; ((my-let ((name val) ...) body1 body2 ...)
;; ;; ;; ((lambda (name ...) body1 body2 ...) val ...))
;; ;; ;; ((my-let tag ((name val) ...) body1 body2 ...)
;;#;(let ((a 1)) ;; ;; ((letrec ((tag (lambda (name ...) body1 body2 ...)))
;; (let-syntax ;; ;; tag)
;; ;;(letrec-syntax ;; ;; val ...))))
;; ((foo (syntax-rules () ;; ;;(write
;; ((_ b) ;; ;;(my-let ((x 'outer))
;; (bar a b)))) ;; ;; (let-syntax ((m (syntax-rules () ((m) x))))
;; (bar (syntax-rules () ((_ c d) ;; ;; (my-let ((x 'inner))
;; (cons c (let ((c 3)) ;; ;; (m)))) ;; Should be outer
;; (list d c 'c))))))) ;; ;; )
;; (let ((a 2)) ;; ;;
;; (foo a)))) ;; ;;
;;
;; (test-exit)
;;(define-syntax my-let
;; (syntax-rules
;; ()
;; ((my-let ((name val) ...) body1 body2 ...)
;; ((lambda (name ...) body1 body2 ...) val ...))
;; ((my-let tag ((name val) ...) body1 body2 ...)
;; ((letrec ((tag (lambda (name ...) body1 body2 ...)))
;; tag)
;; val ...))))
;;(write
;;(my-let ((x 'outer))
;; (let-syntax ((m (syntax-rules () ((m) x))))
;; (my-let ((x 'inner))
;; (m)))) ;; Should be outer
;; )
;;
;;
;;;; (let-syntax ((given-that (syntax-rules ()
;;;; ((given-that test stmt1 stmt2 ...)
;;;; (if test
;;;; (begin stmt1
;;;; stmt2 ...))))))
;;;; (let ((if #t))
;;;; (given-that if (set! if 'now))
;;;; if)) ;; => now
;;
;;(write
;;(let ((x 'outer))
;; (let-syntax ((m (syntax-rules () ((m) x))))
;; (let ((x 'inner))
;; (m)))) ;; Should be outer
;; )
;;
;;;(write
;;;(let ((x 'outer))
;;; (define-syntax m ;; Testing this out, but let-syntax needs to work, too
;;; (syntax-rules () ((m) x)))
;;; (let ((x 'inner))
;;; (m))) ;; Should be outer
;;; )
;;;
;;;(write (m)) ;; Should be an error, of course