# Process this file with autom4te to create testsuite. -*- Autotest -*-

# Test suite for GNU tar.
# Copyright 2023-2025 Free Software Foundation, Inc.

# This file is part of GNU tar.

# GNU tar is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.

# GNU tar 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 General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# Transformations can change the number of bytes when downcasing.

AT_SETUP([transformations and multi-byte downcasing])
AT_KEYWORDS([transform xform xform04])

AT_TAR_CHECK([
if test "`(locale charmap) 2>/dev/null`" != UTF-8; then
  for locale in en_US.UTF-8 `(locale -a) 2>/dev/null` not-found; do
    case $locale in
      *.[[Uu][Tt][Ff]]*8)
	if test "`(LC_ALL=$locale locale charmap) 2>/dev/null`" = UTF-8; then
	  LC_ALL=$locale
	  export LC_ALL
	  break
	fi;;
      not-found)
	AT_SKIP_TEST;;
    esac
  done
fi

expr Aa.Ⱥⱥ : 'Aa\.[[:print:]][[:print:]]$' >/dev/null || AT_SKIP_TEST

genfile --file Aa.Ⱥⱥ
tar -cvf /dev/null --transform='s/.*/\L&-\U&/' --show-transformed-name Aa.Ⱥⱥ],
[0],
[aa.ⱥⱥ-AA.ȺȺ
])

AT_CLEANUP