--- /dev/null
+# Process this file with autom4te to create testsuite. -*- Autotest -*-
+
+# Test suite for GNU tar.
+# Copyright (C) 2006 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 2, 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, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+# Tar should exit with error code 1 (file differs) if any files have
+# changed during archiving.
+
+AT_SETUP([grow])
+AT_KEYWORDS([grow filechange])
+
+AT_TAR_CHECK([
+genfile --file foo --length 50000k
+genfile --file baz
+genfile --run 'tar -vcf bar foo baz' --checkpoint 10 --length 1024 \
+ --append foo
+],
+[1],
+[foo
+baz
+],
+[tar: foo: file changed as we read it
+])
+
+AT_CLEANUP