tar/tests/truncate.at

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

# Test suite for GNU tar.
# Copyright 2005-2023 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/>.

# Tar 1.15.1 incorrectly padded archive members that were truncated during
# archiving.
# References: <[email protected]>
# http://lists.gnu.org/archive/html/bug-tar/2005-05/msg00008.html
#
# The test case is based on the script by Frank Heckenbach <[email protected]>
# Additionally, the test verifies if tar exits with code 1 (file differs).

AT_SETUP([truncate])
AT_KEYWORDS([truncate filechange])

AT_TAR_CHECK([
genfile --file foo --length 200k
genfile --file baz
genfile --run --checkpoint 10 --length 195k --truncate foo -- \
  tar -vcf bar foo baz
echo Exit status: $?
echo separator
genfile --file foo --seek 195k --length 5k --pattern=zeros
tar dvf bar|sed '/foo: Mod time differs/d'],
[0],
[foo
baz
Exit status: 1
separator
foo
baz
],
[tar: foo: File shrank by 5120 bytes; padding with zeros
])

AT_CLEANUP