test-suite/tests/symbols.test

   1 ;;;; symbols.test --- test suite for Guile's symbols    -*- scheme -*-
   2 ;;;;
   3 ;;;; Copyright (C) 2001, 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 (use-modules (ice-9 documentation))
  21
  22
  23 ;;;
  24 ;;; miscellaneous
  25 ;;;
  26
  27 ;; FIXME:  As soon as guile supports immutable strings, this has to be
  28 ;; replaced with the appropriate error type and message.
  29 (define exception:immutable-string
  30   (cons 'some-error-type "^trying to modify an immutable string"))
  31
  32 (define (documented? object)
  33   (not (not (object-documentation object))))
  34
  35
  36 ;;;
  37 ;;; symbol?
  38 ;;;
  39
  40 (with-test-prefix "symbol?"
  41
  42   (pass-if "documented?"
  43     (documented? symbol?))
  44
  45   (pass-if "string"
  46     (not (symbol? "foo")))
  47
  48   (pass-if "symbol"
  49     (symbol? 'foo)))
  50
  51
  52 ;;;
  53 ;;; symbol->string
  54 ;;;
  55
  56 (with-test-prefix "symbol->string"
  57
  58   (expect-fail-exception "result is an immutable string"
  59     exception:immutable-string
  60     (string-set! (symbol->string 'abc) 1 #\space)))
  61
  62
  63 ;;;
  64 ;;; gensym
  65 ;;;
  66
  67 (with-test-prefix "gensym"
  68
  69   (pass-if "documented?"
  70     (documented? gensym))
  71
  72   (pass-if "produces a symbol"
  73     (symbol? (gensym)))
  74
  75   (pass-if "produces a fresh symbol"
  76     (not (eq? (gensym) (gensym))))
  77
  78   (pass-if "accepts a string prefix"
  79     (symbol? (gensym "foo")))
  80
  81   (pass-if-exception "does not accept a symbol prefix"
  82     exception:wrong-type-arg
  83     (gensym 'foo))
  84
  85   (pass-if "accepts long prefices"
  86     (symbol? (gensym (make-string 4000 #\!))))
  87
  88   (pass-if "accepts embedded NULs"
  89     (> (string-length (symbol->string (gensym "foo\0bar\0braz\0foo\0bar\0braz\0foo\0bar\0braz\0foo\0bar\0braz\0foo\0bar\0braz\0foo\0bar\0braz\0"))) 6)))
  90