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;;;; format.test --- test suite for Guile's CL-ish format -*- scheme -*-
;;;; Matthias Koeppe <mkoeppe@mail.math.uni-magdeburg.de> --- June 2001
;;;;
;;;; Copyright (C) 2001, 2003, 2004, 2006, 2010, 2011, 2012,
;;;; 2014, 2017 Free Software Foundation, Inc.
;;;;
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
;;;; License as published by the Free Software Foundation; either
;;;; version 3 of the License, or (at your option) any later version.
;;;;
;;;; This library 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
;;;; Lesser General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU Lesser General Public
;;;; License along with this library; if not, write to the Free Software
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
(define-module (test-format)
#:use-module (test-suite lib)
#:use-module (ice-9 i18n)
#:use-module (ice-9 format))
(with-test-prefix "simple-format"
(pass-if-exception "current-output-port is closed"
exception:wrong-type-arg
;; This used to segfault in Guile <= 2.0.10.
(let ((old (current-output-port))
(new (%make-void-port "w")))
(dynamic-wind
(lambda ()
(set-current-output-port new)
(close-port new))
(lambda ()
(simple-format #t "hello, closed port!")
#t)
(lambda ()
(set-current-output-port old))))))
;;; FORMAT Basic Output
(with-test-prefix "format basic output"
(pass-if "default to Unicode-capable port"
;; `(format #f ...)' should be able to deal with Unicode characters.
(with-fluids ((%default-port-encoding "ISO-8859-1"))
(let ((alpha (integer->char #x03b1))) ; GREEK SMALL LETTER ALPHA
(= 1 (string-length (format #f (string alpha)))))))
(pass-if "format ~% produces a new line"
(string=? (format #f "~%") "\n"))
(pass-if "format ~& starts a fresh line"
(string=? (format #f "~&abc~&~&") "abc\n"))
(pass-if "format ~& is stateless but works properly across outputs via port-column"
(string=?
(with-output-to-string
(lambda ()
(display "xyz")
(format #t "~&abc")
(format #f "~&") ; shall have no effect
(format #t "~&~&")))
"xyz\nabc\n"))
(pass-if "format ~F (format-out-substr) maintains the column correctly"
(= (string-length (format #f "~@F~20T" 1)) 20)))
;;;
;;; misc
;;;
(with-test-prefix "format"
;; in guile 1.6.4 and earlier, excess arguments were an error, but this
;; changed to follow the common lisp spec
(pass-if "excess arguments ignored A"
(string=? (format #f "" 1 2 3 4) ""))
(pass-if "excess arguments ignored B"
(string=? (format #f "~a ~a" 1 2 3 4) "1 2")))
;;;
;;; ~d
;;;
(with-test-prefix "~d decimal integer"
(with-test-prefix "~@d"
(pass-if "-1"
(string=? (format #f "~@d" -1) "-1"))
;; in guile 1.6.4 and earlier, ~@d gave "0" but we think "+0" is what the
;; common lisp spec intendes
(pass-if "+0"
(string=? (format #f "~@d" 0) "+0"))
(pass-if "+1"
(string=? (format #f "~@d" 1) "+1"))))
;;;
;;; ~f
;;;
(with-test-prefix "~f fixed-point"
(pass-if "1.5"
(string=? "1.5" (format #f "~f" 1.5)))
(pass-if "3/2"
(string=? "1.5" (format #f "~f" 3/2)))
(pass-if "~2f"
(string=? "10." (format #f "~2f" 9.9)))
(pass-if "~2,1f"
(string=? "9.9" (format #f "~2,1f" 9.9)))
(pass-if "~2,2f"
(string=? "9.90" (format #f "~2,2f" 9.9)))
;; in guile prior to 1.6.9 and 1.8.1, leading zeros were incorrectly
;; stripped, moving the decimal point and giving "25.0" here
(pass-if "string 02.5"
(string=? "2.5" (format #f "~f" "02.5")))
(pass-if "scale with few leading zeros"
(string=? "1.23" (format #f "~,,3f" "0.00123")))
(pass-if "scale with many leading zeros"
(string=? "0.0123" (format #f "~,,1f" "0.00123"))))
;;;
;;; ~h
;;;
(when (defined? 'setlocale)
(setlocale LC_ALL "C"))
(with-test-prefix "~h localized number"
(pass-if "1234.5"
(string=? (format #f "~h" 1234.5) "1234.5"))
(pass-if "padding"
(string=? (format #f "~6h" 123.2) " 123.2"))
(pass-if "padchar"
(string=? (format #f "~8,,'*h" 123.2) "***123.2"))
(pass-if "decimals"
(string=? (format #f "~,2h" 123.4567)
"123.46"))
(pass-if "locale"
(string=? (format #f "~,3:h, ~a" 1234.5678
%global-locale "approximately")
"1234.568, approximately")))
;;;
;;; ~{
;;;
(with-test-prefix "~{ iteration"
;; In Guile 1.6.4 and earlier, the maximum iterations parameter defaulted
;; to 100, but it's now like Common Lisp where the default is no limit
(pass-if "no arbitrary iteration limit"
(= (string-length (format #f "~{~a~}" (make-list 200 #\b))) 200)))
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