racket/collects/redex/tests/keyword-macros-test.rkt
2011-07-16 18:19:22 -05:00

66 lines
2.4 KiB
Racket

#lang scheme
(require "../private/keyword-macros.rkt"
"test-util.rkt")
(reset-count)
(let* ([formals `((#:b ,#'1) (#:c ,#'2))]
[parse
(λ (actuals)
(map syntax-e
(parse-kw-args formals (cdr (syntax-e actuals)) actuals 'dontcare)))])
(let-syntax ([msg-src
(syntax-rules ()
[(_ expr)
(with-handlers ([exn:fail:syntax?
(λ (exn)
(values (exn-message exn)
(exn:fail:syntax-exprs exn)))])
(begin expr (values 'no-msg 'no-src)))])])
(let ()
(test (parse #'(a #:c 3 #:b 4)) '(4 3))
(test (parse #'(a #:b 4 #:c 3)) '(4 3))
(test (parse #'(a #:c 3)) '(1 3))
(let*-values ([(kw) (syntax-taint #'#:b)]
[(msg src) (msg-src (parse #`(a #,kw)))])
(test msg #rx"a: missing argument expression after keyword")
(test src (list kw)))
(let*-values ([(arg) (syntax-taint #'1)]
[(msg src) (msg-src (parse #`(a #:b 1 #,arg)))])
(test msg #rx"a: expected a keyword")
(test src (list arg)))
(let*-values ([(kw) (syntax-taint #'#:c)]
[(msg src) (msg-src (parse #`(a #:c 1 #:b 2 #,kw 3)))])
(test msg #rx"a: repeated keyword")
(test src (list kw)))
(let*-values ([(kw) (syntax-taint #'#:c)]
[(msg src) (msg-src (parse #`(a #:b #,kw 3)))])
(test msg #rx"a: expected an argument expression")
(test src (list kw)))
(let*-values ([(kw) (syntax-taint #'#:typo)]
[(msg src) (msg-src (parse #`(a #:b 3 #,kw 4)))])
(test msg #rx"a: invalid keyword")
(test src (list kw))))))
(define-namespace-anchor test-module)
(let* ([default #'3]
[formals `((#:a ,default (,#'(-> number? string?) "#:a arg")))]
[form 'test-form]
[parse (λ (actuals) (parse-kw-args formals actuals actuals form))])
(test (first (parse #'())) default)
(define arg
(eval (first (parse #'(#:a (λ (x) 3))))
(namespace-anchor->namespace test-module)))
(test-contract-violation
(arg 3)
#:blaming "keyword-macros-test"
#:message "#:a arg")
(test-contract-violation
(arg "NaN")
#:blaming (format "~a" form)
#:message "#:a arg"))
(print-tests-passed 'keyword-macros-test.rkt)