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(library (aps test-utils)
;;; Version: 0.5
;;; Author: Michele Simionato
;;; Email: michele.simionato@gmail.com
;;; Date: 31-Jan-2009
;;; Licence: BSD
(export test run-tests runner run print-nothing print-dot print-msg)
(import (rnrs) (only (ikarus) printf) (sweet-macros))
;; test macro
(def-syntax (test description expr expected)
#'(lambda (cmd)
(case cmd
((descr) description)
((values) (list expected expr 'expr))
((run) (equal? expr expected))
(else (error 'test "Invalid command" cmd)))))
;; three helper functions
(define (print-nothing descr expected evalued-expr expr)
(display ""))
(define (print-dot descr expected expr evalued-expr)
(display "."))
(define (print-msg descr expected expr evalued-expr)
(printf "\n'~a' failed. Expected ~a, got ~a for ~a\n"
descr expected expr evalued-expr))
;; full runner
(define (run-tests print-success print-failure . tests)
(let loop ((tests tests) (success 0) (failure 0))
(if (null? tests)
(list success failure)
(let* ((test1 (car tests))
(descr (test1 'descr)) (vals (test1 'values)))
(if (test1 'run)
(begin; the test succeeded
(apply print-success descr vals)
(loop (cdr tests) (+ 1 success) failure))
(begin; the test failed
(apply print-failure descr vals)
(loop (cdr tests) success (+ 1 failure))))))))
;; runner factory
(define (runner print-success print-failure)
(lambda tests (apply run-tests print-success print-failure tests)))
;; default runner
(define run (runner print-dot print-msg))
)
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