mes/tests/match.test

#! /bin/sh
# -*-scheme-*-
exec ${MES-bin/mes} --no-auto-compile -L ${0%/*} -L module -C module -e '(tests match)' -s "$0" "$@"
!#

;;; -*-scheme-*-

;;; GNU Mes --- Maxwell Equations of Software
;;; Copyright © 2016,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of GNU Mes.
;;;
;;; GNU 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.
;;;
;;; GNU 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 GNU Mes.  If not, see <http://www.gnu.org/licenses/>.

(define-module (tests match)
  #:use-module (mes mes-0)
  #:use-module (mes test))

(mes-use-module (mes match))
(mes-use-module (mes test))

(cond-expand
 (guile
  (use-modules (ice-9 match)))
  (mes))

(pass-if "first dummy" #t)
(pass-if-not "second dummy" #f)

(pass-if "match symbol"
  (seq?
   (match 'bla
     ('bla 'bla))
   'bla))

(pass-if "match no symbol"
  (sequal?
   (match 'foo
     ('bla 'bla)
     (_ "no match: foo"))
   "no match: foo"))

(pass-if "match symbol?"
  (seq?
   (match 'foo
     ((? symbol?) 'symbol)
     (_ "no match: symbol")
     )
   'symbol))

(pass-if "match list"
  (sequal?
   (match '(0)
     ((0) '(0))
     (_ "no match: (0)"))
   '(0)))

(pass-if "match list 2"
  (sequal?
   (match (list 1 2 3) ((1 b c) (list b c)))
   '(2 3)))

(pass-if "match unquote"
  (sequal?
   (match (list 1 2 3) (`(1 ,b ,c) (list b c)))
   '(2 3)))

(pass-if "match x-hygiene"
  (seq?
   (match '(0 1 2)
     ((0 x y) (+ x y))
     (_ "no match: 0 1 2"))
   3))

(pass-if "match ellipsis"
  (sequal?
   (match '(1 2)
     ((t ...) t)
     (_ "no match: (1 2)"))
   '(1 2)))

(pass-if-equal "match nyacc 0"
               '(rest)
               (match '(first rest)
                 ((first . rest)
                  rest)))

(pass-if-equal "match nyacc 1"
               '(#\. rest)
               (match '(first #\. rest)
                 (('first . rest)
                  rest)))

(let ((tkl0-simple '((ident . type) rest)))
  (pass-if-equal "match nyacc simple"
                 (cons (cdar tkl0-simple) (cdr tkl0-simple))
                 (match tkl0-simple
                   ((('ident . val) . rest)
                    (cons val rest)))))

(let ((tkl0 '((ident . "type") #\. #\] (arg . "0") #\[ (ident . "g_cells"))))
  (pass-if-equal "match nyacc tkl0"
                 (cdr tkl0)
                 (match tkl0
                   ((('ident . val) . rest)
                    rest))))

(result 'report (if mes? 2 0))