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Add testing module and ignore backup files.

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Dominik Pantůček 2023-03-13 18:46:23 +01:00
parent 7d08bff69f
commit 4d51b4cc14
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;;
;; testing.scm
;;
;; ISC License
;;
;; Copyright 2023 Brmlab, z.s.
;; Dominik Pantůček <dominik.pantucek@trustica.cz>
;;
;; Permission to use, copy, modify, and/or distribute this software
;; for any purpose with or without fee is hereby granted, provided
;; that the above copyright notice and this permission notice appear
;; in all copies.
;;
;; THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
;; WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
;; WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
;; AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
;; CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
;; OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
;; NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
;; CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
;;
(module
testing
(test-eq? test-equal? test-exn)
(import scheme)
;; Evaluates body ... expressions with exception handler installed.
(define-syntax with-handler
(syntax-rules ()
((_ handler body ...)
(call-with-current-continuation
(lambda (k)
(with-exception-handler
(lambda (x) (k (handler x)))
(lambda () body ...)))))))
;; Test passes if the-test does not raise an exception and the result
;; is eq? to expected-result.
(define-syntax test-eq?
(syntax-rules ()
((_ name the-test expected-result)
(if (with-handler (lambda (x) #f)
(eq? the-test expected-result))
(display ".")
(error 'unit-test name)))))
;; Test passes if the-test does not raise an exception and the result
;; is equal? to expected-result.
(define-syntax test-equal?
(syntax-rules ()
((_ name the-test expected-result)
(if (with-handler (lambda (x) #f)
(eq? the-test expected-result))
(display ".")
(error 'unit-test name)))))
;; Passes if the-test raises an exception
(define-syntax test-exn
(syntax-rules ()
((_ name the-test)
(if (with-handler (lambda (x) #t)
the-test #f)
(display ".")
(error 'unit-test name)))))
)