guile/test-suite/tests/optargs.test

;;;; optargs.test --- test suite for optional arg processing -*- scheme -*-
;;;; Matthias Koeppe <mkoeppe@mail.math.uni-magdeburg.de> --- June 2001
;;;;
;;;; 	Copyright (C) 2001 Free Software Foundation, Inc.
;;;; 
;;;; This program is free software; you can redistribute it and/or modify
;;;; 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.
;;;; 
;;;; This program 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 General Public License for more details.
;;;; 
;;;; You should have received a copy of the GNU General Public License
;;;; along with this software; see the file COPYING.  If not, write to
;;;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;;;; Boston, MA 02110-1301 USA

(define-module (test-suite test-optargs)
  :use-module (test-suite lib)
  :use-module (ice-9 optargs))

(with-test-prefix "optional argument processing"
  (define* (test-1 #:optional (x 0))
    (define d 1)			; local define
    #t)
  (pass-if "local defines work with optional arguments"
	   (false-if-exception (test-1))))

;;;
;;; let-keywords
;;;

(with-test-prefix "let-keywords"

  ;; in guile 1.6.4 and earlier, an empty binding list only used `begin',
  ;; which caused apparently internal defines to "leak" out into the
  ;; encompasing environment
  (pass-if-exception "empty bindings internal defines leaking out"
      exception:unbound-var
    (let ((rest '()))
      (let-keywords rest #f ()
	(define localvar #f)
	#f)
      localvar))

  (pass-if "one key"
    (let-keywords '(#:foo 123) #f (foo)
      (= foo 123))))

;;;
;;; let-keywords*
;;;

(with-test-prefix "let-keywords*"

  ;; in guile 1.6.4 and earlier, an empty binding list only used `begin',
  ;; which caused apparently internal defines to "leak" out into the
  ;; encompasing environment
  (pass-if-exception "empty bindings internal defines leaking out"
      exception:unbound-var
    (let ((rest '()))
      (let-keywords* rest #f ()
	(define localvar #f)
	#f)
      localvar))

  (pass-if "one key"
    (let-keywords* '(#:foo 123) #f (foo)
      (= foo 123))))

;;;
;;; let-optional
;;;

(with-test-prefix "let-optional"

  ;; in guile 1.6.4 and earlier, an empty binding list only used `begin',
  ;; which caused apparently internal defines to "leak" out into the
  ;; encompasing environment
  (pass-if-exception "empty bindings internal defines leaking out"
      exception:unbound-var
    (let ((rest '()))
      (let-optional rest ()
	(define localvar #f)
	#f)
      localvar))

  (pass-if "one var"
    (let ((rest '(123)))
      (let-optional rest ((foo 999))
	(= foo 123)))))

;;;
;;; let-optional*
;;;

(with-test-prefix "let-optional*"

  ;; in guile 1.6.4 and earlier, an empty binding list only used `begin',
  ;; which caused apparently internal defines to "leak" out into the
  ;; encompasing environment
  (pass-if-exception "empty bindings internal defines leaking out"
      exception:unbound-var
    (let ((rest '()))
      (let-optional* rest ()
	(define localvar #f)
	#f)
      localvar))

  (pass-if "one var"
    (let ((rest '(123)))
      (let-optional* rest ((foo 999))
	(= foo 123)))))