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;;;; coding.test --- test suite for coding declarations. -*- mode: scheme -*-
;;;;
;;;; Copyright (C) 2011, 2013, 2014 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-coding)
#:use-module (test-suite lib))
(define (with-temp-file proc)
(let* ((tmpdir (or (getenv "TMPDIR")
(getenv "TEMP")
"/tmp"))
(name (string-append tmpdir "/coding-test.XXXXXX"))
(port (mkstemp! name)))
(let ((res (with-throw-handler
#t
(lambda ()
(proc name port))
(lambda _
(delete-file name)))))
(delete-file name)
res)))
(define (scan-coding str)
(with-temp-file
(lambda (name port)
(display str port)
(close port)
;; We don't simply seek back and rescan, because the encoding scan
;; relies on the opportunistic filling of the input buffer, which
;; doesn't happen after a seek.
(let* ((port (open-input-file name))
(res (file-encoding port)))
(close-port port)
res))))
(with-test-prefix "block comments"
(pass-if-equal "first line"
"ISO-8859-1"
(scan-coding "#! coding: iso-8859-1 !#"))
(pass-if-equal "first line no whitespace"
"ISO-8859-1"
(scan-coding "#!coding:iso-8859-1!#"))
(pass-if-equal "second line"
"ISO-8859-1"
(scan-coding "#! \n coding: iso-8859-1 !#"))
(pass-if-equal "second line no whitespace"
"ISO-8859-1"
(scan-coding "#!\ncoding:iso-8859-1!#"))
(pass-if-equal "third line"
"ISO-8859-1"
(scan-coding "#! \n coding: iso-8859-1 \n !#"))
(pass-if-equal "third line no whitespace"
"ISO-8859-1"
(scan-coding "#!\ncoding:iso-8859-1\n!#")))
(with-test-prefix "line comment"
(pass-if-equal "first line, no whitespace, no nl"
"ISO-8859-1"
(scan-coding ";coding:iso-8859-1"))
(pass-if-equal "first line, whitespace, no nl"
"ISO-8859-1"
(scan-coding "; coding: iso-8859-1 "))
(pass-if-equal "first line, no whitespace, nl"
"ISO-8859-1"
(scan-coding ";coding:iso-8859-1\n"))
(pass-if-equal "first line, whitespace, nl"
"ISO-8859-1"
(scan-coding "; coding: iso-8859-1 \n"))
(pass-if-equal "second line, no whitespace, no nl"
"ISO-8859-1"
(scan-coding "\n;coding:iso-8859-1"))
(pass-if-equal "second line, whitespace, no nl"
"ISO-8859-1"
(scan-coding "\n; coding: iso-8859-1 "))
(pass-if-equal "second line, no whitespace, nl"
"ISO-8859-1"
(scan-coding "\n;coding:iso-8859-1\n"))
(pass-if-equal "second line, whitespace, nl"
"ISO-8859-1"
(scan-coding "\n; coding: iso-8859-1 \n"))
(pass-if-equal "http://bugs.gnu.org/16463"
;; On Guile <= 2.0.9, this would return "ISO-8".
"ISO-8859-1"
(scan-coding (string-append (make-string 485 #\space)
"; coding: ISO-8859-1"))))
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