test-suite/tests/format.test

   1 ;;;; format.test --- test suite for Guile's CL-ish format  -*- scheme -*-
   2 ;;;; Matthias Koeppe <mkoeppe@mail.math.uni-magdeburg.de> --- June 2001
   3 ;;;;
   4 ;;;;    Copyright (C) 2001, 2003, 2004 Free Software Foundation, Inc.
   5 ;;;;
   6 ;;;; This program is free software; you can redistribute it and/or modify
   7 ;;;; it under the terms of the GNU General Public License as published by
   8 ;;;; the Free Software Foundation; either version 2, or (at your option)
   9 ;;;; any later version.
  10 ;;;;
  11 ;;;; This program is distributed in the hope that it will be useful,
  12 ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 ;;;; GNU General Public License for more details.
  15 ;;;;
  16 ;;;; You should have received a copy of the GNU General Public License
  17 ;;;; along with this software; see the file COPYING.  If not, write to
  18 ;;;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  19 ;;;; Boston, MA 02111-1307 USA
  20
  21 (use-modules (test-suite lib)
  22              (ice-9 format))
  23
  24 ;;; FORMAT Basic Output
  25
  26 (with-test-prefix "format basic output"
  27   (pass-if "format ~% produces a new line"
  28            (string=? (format "~%") "\n"))
  29   (pass-if "format ~& starts a fresh line"
  30            (string=? (format "~&abc~&~&") "abc\n"))
  31   (pass-if "format ~& is stateless but works properly across outputs via port-column"
  32            (string=?
  33             (with-output-to-string
  34               (lambda ()
  35                 (display "xyz")
  36                 (format #t "~&abc")
  37                 (format #f "~&")        ; shall have no effect
  38                 (format #t "~&~&")))
  39             "xyz\nabc\n"))
  40   (pass-if "format ~F (format-out-substr) maintains the column correctly"
  41            (= (string-length (format "~@F~20T" 1)) 20)))
  42
  43 ;;;
  44 ;;; ~d
  45 ;;;
  46
  47 (with-test-prefix "~d decimal integer"
  48
  49   (with-test-prefix "~@d"
  50
  51     (pass-if "-1"
  52       (string=? (format #f "~@d" -1) "-1"))
  53     ;; in guile 1.6.4 and earlier, ~@d gave "0" but we think "+0" is what the
  54     ;; common lisp spec intendes
  55     (pass-if "+0"
  56       (string=? (format #f "~@d" 0) "+0"))
  57
  58     (pass-if "+1"
  59       (string=? (format #f "~@d" 1) "+1"))))
  60
  61 ;;;
  62 ;;; ~t
  63 ;;;
  64
  65 (with-test-prefix "~t column advance"
  66
  67   ;; in guile 1.6.4 and earlier, a newline as a fill character didn't zero
  68   ;; the column number, making a subsequent ~t wrong
  69   (pass-if "newline as fill character"
  70     (string=? (format #f "~6,'\nd~8tX" 123)
  71               "\n\n\n123     X")))
  72
  73 ;;;
  74 ;;; ~{
  75 ;;;
  76
  77 (with-test-prefix "~{ iteration"
  78
  79   ;; In Guile 1.6.4 and earlier, the maximum iterations parameter defaulted
  80   ;; to 100, but it's now like Common Lisp where the default is no limit
  81   (pass-if "no arbitrary iteration limit"
  82     (= (string-length (format "~{~a~}" (make-list 200 #\b))) 200)))