* New tests file for Elisp support.

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

;;;; elisp.test --- tests guile's elisp support     -*- scheme -*-
;;;; Copyright (C) 2002 Free Software Foundation, Inc.
;;;;
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;;;; it under the terms of the GNU General Public License as published by
;;;; the Free Software Foundation; either version 2, or (at your option)
;;;; any later version.
;;;;
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;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;;; GNU General Public License for more details.
;;;;
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;;;; along with this software; see the file COPYING.  If not, write to
;;;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
;;;; Boston, MA 02111-1307 USA
;;;;
;;;; As a special exception, the Free Software Foundation gives permission
;;;; for additional uses of the text contained in its release of GUILE.
;;;;
;;;; The exception is that, if you link the GUILE library with other files
;;;; to produce an executable, this does not by itself cause the
;;;; resulting executable to be covered by the GNU General Public License.
;;;; Your use of that executable is in no way restricted on account of
;;;; linking the GUILE library code into it.
;;;;
;;;; This exception does not however invalidate any other reasons why
;;;; the executable file might be covered by the GNU General Public License.
;;;;
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;;;; Free Software Foundation under the name GUILE.  If you copy
;;;; code from other Free Software Foundation releases into a copy of
;;;; GUILE, as the General Public License permits, the exception does
;;;; not apply to the code that you add in this way.  To avoid misleading
;;;; anyone as to the status of such modified files, you must delete
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;;;
;;; elisp
;;;

(if (defined? '%nil)

    (with-test-prefix "scheme"

      (with-test-prefix "nil value is a boolean"

        (pass-if "boolean?"
          (boolean? %nil))

	)

      (with-test-prefix "nil value is false"

        (pass-if "not"
          (eq? (not %nil) #t))

        (pass-if "if"
	  (if %nil #f #t))

	(pass-if "and"
          (eq? (and %nil #t) #f))

        (pass-if "or"
          (eq? (or %nil #f) #f))

        (pass-if "cond"
          (cond (%nil #f) (else #t)))

	(pass-if "do"
	  (call-with-current-continuation
	    (lambda (exit)
	      (do ((i 0 (+ i 1)))
		  (%nil (exit #f))
		(if (> i 10)
		    (exit #t))))))

	)

      (with-test-prefix "nil value as an empty list"

	(pass-if "list?"
          (list? %nil))

	(pass-if "null?"
          (null? %nil))

	(pass-if "sort"
          (eq? (sort %nil <) %nil))

	)

      (with-test-prefix "lists formed using nil value"

	(pass-if "list?"
          (list? (cons 'a %nil)))

        (pass-if "length"
          (= (length (cons 'a (cons 'b (cons 'c %nil)))) 3))

        (pass-if "length (with backquoted list)"
          (= (length `(a b c . ,%nil)) 3))

	(pass-if "write"
          (string=? (with-output-to-string
		      (lambda () (write (cons 'a %nil))))
		    "(a)"))

	(pass-if "display"
          (string=? (with-output-to-string
		      (lambda () (display (cons 'a %nil))))
		    "(a)"))

	)

      (with-test-prefix "value preservation"

        (pass-if "car"
          (eq? (car (cons %nil 'a)) %nil))

        (pass-if "cdr"
          (eq? (cdr (cons 'a %nil)) %nil))

        (pass-if "vector-ref"
          (eq? (vector-ref (vector %nil) 0) %nil))

	)

      ))

;;; elisp.test ends here