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, 2006 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., 51 Franklin Street, Fifth Floor,
  19 ;;;; Boston, MA 02110-1301 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 ;;; misc
  45 ;;;
  46
  47 (with-test-prefix "format"
  48
  49   ;; in guile 1.6.4 and earlier, excess arguments were an error, but this
  50   ;; changed to follow the common lisp spec
  51   (pass-if "excess arguments ignored A"
  52     (string=? (format #f "" 1 2 3 4) ""))
  53   (pass-if "excess arguments ignored B"
  54     (string=? (format #f "~a ~a" 1 2 3 4) "1 2")))
  55
  56 ;;;
  57 ;;; ~d
  58 ;;;
  59
  60 (with-test-prefix "~d decimal integer"
  61
  62   (with-test-prefix "~@d"
  63
  64     (pass-if "-1"
  65       (string=? (format #f "~@d" -1) "-1"))
  66
  67     ;; in guile 1.6.4 and earlier, ~@d gave "0" but we think "+0" is what the
  68     ;; common lisp spec intendes
  69     (pass-if "+0"
  70       (string=? (format #f "~@d" 0) "+0"))
  71
  72     (pass-if "+1"
  73       (string=? (format #f "~@d" 1) "+1"))))
  74
  75 ;;;
  76 ;;; ~{
  77 ;;;
  78
  79 (with-test-prefix "~{ iteration"
  80
  81   ;; In Guile 1.6.4 and earlier, the maximum iterations parameter defaulted
  82   ;; to 100, but it's now like Common Lisp where the default is no limit
  83   (pass-if "no arbitrary iteration limit"
  84     (= (string-length (format "~{~a~}" (make-list 200 #\b))) 200)))