[bpt/guile.git] / test-suite / tests / foreign.test

;;;; foreign.test --- FFI.           -*- mode: scheme; coding: utf-8; -*-
;;;;
;;;; 	Copyright (C) 2010 Free Software Foundation, Inc.
;;;;
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
;;;; License as published by the Free Software Foundation; either
;;;; version 3 of the License, or (at your option) any later version.
;;;;
;;;; This library is distributed in the hope that it will be useful,
;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
;;;; Lesser General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU Lesser General Public
;;;; License along with this library; if not, write to the Free Software
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

;;;
;;; See also ../standalone/test-ffi for FFI tests.
;;;

(define-module (test-foreign)
  #:use-module (system foreign)
  #:use-module (rnrs bytevector)
  #:use-module (test-suite lib))

\f
(with-test-prefix "null pointer"

  (pass-if "zero"
    (= 0 (foreign-ref %null-pointer)))

  (pass-if-exception "foreign-set! %null-pointer"
    exception:null-pointer-error
    (foreign-set! %null-pointer 2))

  (pass-if "foreign-set! other-null-pointer"
    (let ((f (bytevector->foreign (make-bytevector 2))))
      (and (not (= 0 (foreign-ref f)))
           (begin
             (foreign-set! f 0)
             (= 0 (foreign-ref f)))
           (begin
             ;; Here changing the pointer value of F is perfectly valid.
             (foreign-set! f 777)
             (= 777 (foreign-ref f))))))

  (pass-if-exception "foreign->bytevector %null-pointer"
    exception:null-pointer-error
    (foreign->bytevector %null-pointer))

  (pass-if-exception "foreign->bytevector other-null-pointer"
    exception:null-pointer-error
    (let ((f (bytevector->foreign (make-bytevector 2))))
      (foreign-set! f 0)
      (foreign->bytevector f))))
Commit	Line	Data
01ad5a7b LC	1	;;;; foreign.test --- FFI. -- mode: scheme; coding: utf-8; --
	2	;;;;
	3	;;;; Copyright (C) 2010 Free Software Foundation, Inc.
	4	;;;;
	5	;;;; This library is free software; you can redistribute it and/or
	6	;;;; modify it under the terms of the GNU Lesser General Public
	7	;;;; License as published by the Free Software Foundation; either
	8	;;;; version 3 of the License, or (at your option) any later version.
	9	;;;;
	10	;;;; This library is distributed in the hope that it will be useful,
	11	;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	;;;; Lesser General Public License for more details.
	14	;;;;
	15	;;;; You should have received a copy of the GNU Lesser General Public
	16	;;;; License along with this library; if not, write to the Free Software
	17	;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	18
	19	;;;
	20	;;; See also ../standalone/test-ffi for FFI tests.
	21	;;;
	22
	23	(define-module (test-foreign)
	24	#:use-module (system foreign)
	25	#:use-module (rnrs bytevector)
	26	#:use-module (test-suite lib))
	27
	28	\f
	29	(with-test-prefix "null pointer"
	30
	31	(pass-if "zero"
	32	(= 0 (foreign-ref %null-pointer)))
	33
	34	(pass-if-exception "foreign-set! %null-pointer"
	35	exception:null-pointer-error
	36	(foreign-set! %null-pointer 2))
	37
	38	(pass-if "foreign-set! other-null-pointer"
	39	(let ((f (bytevector->foreign (make-bytevector 2))))
	40	(and (not (= 0 (foreign-ref f)))
	41	(begin
	42	(foreign-set! f 0)
	43	(= 0 (foreign-ref f)))
	44	(begin
	45	;; Here changing the pointer value of F is perfectly valid.
	46	(foreign-set! f 777)
	47	(= 777 (foreign-ref f))))))
	48
	49	(pass-if-exception "foreign->bytevector %null-pointer"
	50	exception:null-pointer-error
	51	(foreign->bytevector %null-pointer))
	52
	53	(pass-if-exception "foreign->bytevector other-null-pointer"
	54	exception:null-pointer-error
	55	(let ((f (bytevector->foreign (make-bytevector 2))))
	56	(foreign-set! f 0)
	57	(foreign->bytevector f))))