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+;;;; coding.test --- test suite for coding declarations. -*- mode: scheme -*-
+;;;;
+;;;; Copyright (C) 2011 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* ((name (string-copy "/tmp/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 (port-encoding port)))
+ (close-port port)
+ res))))
+
+(with-test-prefix "block comments"
+
+ (pass-if "first line"
+ (equal? (scan-coding "#! coding: iso-8859-1 !#")
+ "ISO-8859-1"))
+
+ (pass-if "first line no whitespace"
+ (equal? (scan-coding "#!coding:iso-8859-1!#")
+ "ISO-8859-1"))
+
+ (pass-if "second line"
+ (equal? (scan-coding "#! \n coding: iso-8859-1 !#")
+ "ISO-8859-1"))
+
+ (pass-if "second line no whitespace"
+ (equal? (scan-coding "#!\ncoding:iso-8859-1!#")
+ "ISO-8859-1"))
+
+ (pass-if "third line"
+ (equal? (scan-coding "#! \n coding: iso-8859-1 \n !#")
+ "ISO-8859-1"))
+
+ (pass-if "third line no whitespace"
+ (equal? (scan-coding "#!\ncoding:iso-8859-1\n!#")
+ "ISO-8859-1")))
+
+(with-test-prefix "line comments"
+ (pass-if "first line, no whitespace, no nl"
+ (equal? (scan-coding ";coding:iso-8859-1")
+ "ISO-8859-1"))
+
+ (pass-if "first line, whitespace, no nl"
+ (equal? (scan-coding "; coding: iso-8859-1 ")
+ "ISO-8859-1"))
+
+ (pass-if "first line, no whitespace, nl"
+ (equal? (scan-coding ";coding:iso-8859-1\n")
+ "ISO-8859-1"))
+
+ (pass-if "first line, whitespace, nl"
+ (equal? (scan-coding "; coding: iso-8859-1 \n")
+ "ISO-8859-1"))
+
+ (pass-if "second line, no whitespace, no nl"
+ (equal? (scan-coding "\n;coding:iso-8859-1")
+ "ISO-8859-1"))
+
+ (pass-if "second line, whitespace, no nl"
+ (equal? (scan-coding "\n; coding: iso-8859-1 ")
+ "ISO-8859-1"))
+
+ (pass-if "second line, no whitespace, nl"
+ (equal? (scan-coding "\n;coding:iso-8859-1\n")
+ "ISO-8859-1"))
+
+ (pass-if "second line, whitespace, nl"
+ (equal? (scan-coding "\n; coding: iso-8859-1 \n")
+ "ISO-8859-1")))