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srfi-78.ss
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srfi-78.ss
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#|
Copyright (C) Sebastian Egner (2005-2006). All Rights Reserved.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to
deal in the Software without restriction, including without limitation the
rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
IN THE SOFTWARE.
|#
(define-library (srfi 78)
(import (scheme base)
(scheme cxr)
(scheme write))
(export check
; check-ec
check-passed? check-report check-reset! check-set-mode!)
(begin (define check:write write)
(define check:mode #f)
(define (check-set-mode! mode)
(set! check:mode
(case mode
((off) 0)
((summary) 1)
((report-failed) 10)
((report) 100)
(else (error "unrecognized mode" mode)))))
(check-set-mode! 'report)
(define check:correct #f)
(define check:failed #f)
(define (check-reset!)
(set! check:correct 0)
(set! check:failed '()))
(define (check:add-correct!)
(set! check:correct (+ check:correct 1)))
(define (check:add-failed! expression actual-result expected-result)
(set! check:failed
(cons (list expression actual-result expected-result)
check:failed)))
(check-reset!)
(define (check:report-expression expression)
(newline)
(check:write expression)
(display " => "))
(define (check:report-actual-result actual-result)
(check:write actual-result)
(display " ; "))
(define (check:report-correct cases)
(display "correct")
(if (not (= cases 1))
(begin (display " (")
(display cases)
(display " cases checked)")))
(newline))
(define (check:report-failed expected-result)
(display "*** failed ***")
(newline)
(display " ; expected result: ")
(check:write expected-result)
(newline))
(define (check-report)
(if (>= check:mode 1)
(begin (newline)
(display "; *** checks *** : ")
(display check:correct)
(display " correct, ")
(display (length check:failed))
(display " failed.")
(if (or (null? check:failed) (<= check:mode 1))
(newline)
(let* ((w (car (reverse check:failed)))
(expression (car w))
(actual-result (cadr w))
(expected-result (caddr w)))
(display " First failed example:")
(newline)
(check:report-expression expression)
(check:report-actual-result actual-result)
(check:report-failed expected-result))))))
(define (check-passed? expected-total-count)
(and (zero? (length check:failed))
(= check:correct expected-total-count)))
(define (check:proc expression thunk equal expected-result)
(case check:mode
((0) #f)
((1)
(let ((actual-result (thunk)))
(if (equal actual-result expected-result)
(check:add-correct!)
(check:add-failed! expression actual-result expected-result))))
((10)
(let ((actual-result (thunk)))
(if (equal actual-result expected-result)
(check:add-correct!)
(begin
(check:report-expression expression)
(check:report-actual-result actual-result)
(check:report-failed expected-result)
(check:add-failed! expression actual-result expected-result)))))
((100)
(check:report-expression expression)
(let ((actual-result (thunk)))
(check:report-actual-result actual-result)
(if (equal actual-result expected-result)
(begin (check:report-correct 1)
(check:add-correct!))
(begin (check:report-failed expected-result)
(check:add-failed! expression
actual-result
expected-result)))))
(else (error "unrecognized check:mode" check:mode)))
(if #f #f))
(define-syntax check
(syntax-rules (=>)
((check expr => expected)
(check expr (=> equal?) expected))
((check expr (=> equal) expected)
(if (>= check:mode 1)
(check:proc 'expr (lambda () expr) equal expected)))))
; (define (check:proc-ec w)
; (let ((correct? (car w))
; (expression (cadr w))
; (actual-result (caddr w))
; (expected-result (cadddr w))
; (cases (car (cddddr w))))
; (if correct?
; (begin (if (>= check:mode 100)
; (begin (check:report-expression expression)
; (check:report-actual-result actual-result)
; (check:report-correct cases)))
; (check:add-correct!))
; (begin (if (>= check:mode 10)
; (begin (check:report-expression expression)
; (check:report-actual-result actual-result)
; (check:report-failed expected-result)))
; (check:add-failed! expression
; actual-result
; expected-result)))))
;
; (define-syntax check-ec:make
; (syntax-rules (=>)
; ((check-ec:make qualifiers expr (=> equal) expected (arg ...))
; (if (>= check:mode 1)
; (check:proc-ec (let ((cases 0))
; (let ((w (first-ec #f
; qualifiers
; (:let equal-pred equal)
; (:let expected-result expected)
; (:let actual-result
; (let ((arg arg) ...)
; expr))
; (begin (set! cases (+ cases 1)))
; (if (not (equal-pred actual-result expected-result)))
; (list (list 'let (list (list 'arg arg) ...) 'expr)
; actual-result
; expected-result
; cases))))
; (if w
; (cons #f w)
; (list #t
; '(check-ec qualifiers
; expr (=> equal)
; expected (arg ...))
; (if #f #f)
; (if #f #f)
; cases)))))))))
;
; (define-syntax check-ec
; (syntax-rules (nested =>)
; ((check-ec expr => expected)
; (check-ec:make (nested) expr (=> equal?) expected ()))
; ((check-ec expr (=> equal) expected)
; (check-ec:make (nested) expr (=> equal) expected ()))
; ((check-ec expr => expected (arg ...))
; (check-ec:make (nested) expr (=> equal?) expected (arg ...)))
; ((check-ec expr (=> equal) expected (arg ...))
; (check-ec:make (nested) expr (=> equal) expected (arg ...)))
; ((check-ec qualifiers expr => expected)
; (check-ec:make qualifiers expr (=> equal?) expected ()))
; ((check-ec qualifiers expr (=> equal) expected)
; (check-ec:make qualifiers expr (=> equal) expected ()))
; ((check-ec qualifiers expr => expected (arg ...))
; (check-ec:make qualifiers expr (=> equal?) expected (arg ...)))
; ((check-ec qualifiers expr (=> equal) expected (arg ...))
; (check-ec:make qualifiers expr (=> equal) expected (arg ...)))
; ((check-ec (nested q1 ...) q etc ...)
; (check-ec (nested q1 ... q) etc ...))
; ((check-ec q1 q2 etc ...)
; (check-ec (nested q1 q2) etc ...))))
))