test-suite/tests/srfi-11.test

   1 ;;;; srfi-11.test --- exercise SRFI-11 let-values
   2 ;;;;
   3 ;;;; Copyright 2004, 2006 Free Software Foundation, Inc.
   4 ;;;;
   5 ;;;; This program is free software; you can redistribute it and/or modify
   6 ;;;; it under the terms of the GNU General Public License as published by
   7 ;;;; the Free Software Foundation; either version 2, or (at your option)
   8 ;;;; any later version.
   9 ;;;;
  10 ;;;; This program 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
  13 ;;;; GNU General Public License for more details.
  14 ;;;;
  15 ;;;; You should have received a copy of the GNU General Public License
  16 ;;;; along with this software; see the file COPYING.  If not, write to
  17 ;;;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  18 ;;;; Boston, MA 02110-1301 USA
  19
  20 (define-module (test-suite test-srfi-11)
  21   #:use-module (test-suite lib)
  22   #:use-module (srfi srfi-11))
  23
  24
  25 ;;
  26 ;; let-values
  27 ;;
  28
  29 (with-test-prefix "let-values"
  30
  31   (with-test-prefix "no exprs"
  32
  33     (pass-if "no values"
  34       (let-values ()
  35         #t)))
  36
  37   (with-test-prefix "one expr"
  38
  39     (pass-if "no values"
  40       (let-values ((() (values)))
  41         #t))
  42
  43     (pass-if "one value"
  44       (let-values (((x) (values 1)))
  45         (equal? x 1)))
  46
  47     (pass-if "one value as rest"
  48       (let-values ((x (values 1)))
  49         (equal? x '(1))))
  50
  51     (pass-if "two values"
  52       (let-values (((x y) (values 1 2)))
  53         (and (equal? x 1)
  54              (equal? y 2)))))
  55
  56   (with-test-prefix "two exprs"
  57
  58     (pass-if "no values each"
  59       (let-values ((() (values))
  60                    (() (values)))
  61         #t))
  62
  63     (pass-if "one value / no values"
  64       (let-values (((x) (values 1))
  65                    (() (values)))
  66         (equal? x 1)))
  67
  68     (pass-if "one value each"
  69       (let-values (((x) (values 1))
  70                    ((y) (values 2)))
  71         (and (equal? x 1)
  72              (equal? y 2))))
  73
  74     (pass-if-exception "first binding invisible to second expr"
  75         '(unbound-variable . ".*")
  76       (let-values (((x) (values 1))
  77                    ((y) (values (1+ x))))
  78         #f))))
  79
  80 ;;
  81 ;; let*-values
  82 ;;
  83
  84 (with-test-prefix "let*-values"
  85
  86   (with-test-prefix "no exprs"
  87
  88     (pass-if "no values"
  89       (let*-values ()
  90         #t)))
  91
  92   (with-test-prefix "one expr"
  93
  94     (pass-if "no values"
  95       (let*-values ((() (values)))
  96         #t))
  97
  98     (pass-if "one value"
  99       (let*-values (((x) (values 1)))
 100         (equal? x 1)))
 101
 102     (pass-if "one value as rest"
 103       (let-values ((x (values 1)))
 104         (equal? x '(1))))
 105
 106     (pass-if "two values"
 107       (let*-values (((x y) (values 1 2)))
 108         (and (equal? x 1)
 109              (equal? y 2)))))
 110
 111   (with-test-prefix "two exprs"
 112
 113     (pass-if "no values each"
 114       (let*-values ((() (values))
 115                     (() (values)))
 116         #t))
 117
 118     (pass-if "one value / no values"
 119       (let*-values (((x) (values 1))
 120                     (() (values)))
 121         (equal? x 1)))
 122
 123     (pass-if "one value each"
 124       (let*-values (((x) (values 1))
 125                     ((y) (values 2)))
 126         (and (equal? x 1)
 127              (equal? y 2))))
 128
 129     (pass-if "first binding visible to second expr"
 130       (let*-values (((x) (values 1))
 131                     ((y) (values (1+ x))))
 132         (and (equal? x 1)
 133              (equal? y 2))))))