mes/test/let.test

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;;; -*-scheme-*-
;;; Mes --- Maxwell Equations of Software
;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
;;;
;;; let.test: This file is part of Mes.
;;;
;;; Mes 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 3 of the License, or (at
;;; your option) any later version.
;;;
;;; Mes 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 Mes. If not, see <http://www.gnu.org/licenses/>.
(pass-if "first dummy" #t)
(pass-if-not "second dummy" #f)
(let () (define *top-let-a* '*top-let-a*) #f)
(pass-if "top let " (seq? (and (defined? '*top-let-a*) *top-let-a*) #f))
(pass-if "let loop"
(sequal?
(let loop ((lst '(3 2 1)))
(cond ((null? lst) '())
(#t (cons (car lst) (loop (cdr lst))))))
'(3 2 1)))
(pass-if "let* comments"
(seq? (let* ((aa 2)
(bb (+ aa 3))
#! boo !#
;;(bb 4)
)
bb)
5))
(pass-if "letrec"
(seq?
(letrec ((factorial (lambda (n)
(cond ((= n 1) 1)
(#t (* n (factorial (- n 1))))))))
(factorial 4))
24))
(result 'report)