tests: add a known-to-fail test

* tests/turkish-I: New test.
* tests/Makefile.am (TESTS): Add it.
(XFAIL_TESTS): Add here, too.
Reported by Ilya Basin.

THANKS

@@ -37,6 +37,7 @@ H. Merijn Brand            <h.m.brand@hccnet.nl>
 Harald Hanche-Olsen        <hanche@math.ntnu.no>
 Hans-Bernhard Broeker      <broeker@physik.rwth-aachen.de>
 Heikki Korpela             <heko@iki.fi>
+Ilya Basin                 <basinilya@gmail.com>
 Isamu Hasegawa             <isamu@yamato.ibm.com>
 Jaroslav Škarvada          <jskarvad@redhat.com>
 Jeff Bailey                <jbailey@nisa.net>

tests/Makefile.am

@@ -32,6 +32,7 @@ XFAIL_TESTS = \
 if USE_INCLUDED_REGEX
 XFAIL_TESTS += equiv-classes
 endif
+XFAIL_TESTS += turkish-I
 
 TESTS =						\
   backref					\
@@ -71,6 +72,7 @@ TESTS =						\
   spencer1					\
   spencer1-locale				\
   status					\
+  turkish-I					\
   warn-char-classes				\
   word-delim-multibyte				\
   word-multi-file				\

tests/turkish-I

@@ -0,0 +1,32 @@
+#!/bin/sh
+# grep -i in UTF-8: missing NL in output on line containing I WITH DOT (U+0130)
+
+# Copyright (C) 2011 Free Software Foundation, Inc.
+
+# This program 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.
+
+# This program 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/>.
+
+. "${srcdir=.}/init.sh"; path_prepend_ ../src
+
+require_en_utf8_locale_
+
+fail=0
+
+i='\xC4\xB0'
+printf "$i$i$i$i$i$i$i\n" > in || framework_failure_
+
+LC_ALL=en_US.UTF-8 grep -i .... in > out || fail=1
+
+compare out in || fail=1
+
+Exit $fail