tar/tests/time01.at

# Test time stamps for GNU tar.  -*- Autotest -*-
#
# Copyright 2012-2023 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, 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/>.

# written by Paul Eggert

AT_SETUP([time: tricky time stamps])
AT_KEYWORDS([time time01])

AT_TAR_CHECK([
export TZ=UTC0
mkdir dir

# Test files with time stamps that are near common sources of error,
# typically near powers of 2 (for seconds) or near 0, 1970, or 9999 (years).
# Use GNU-style @ notation for very large time stamps, since they
# typically don't render into years correctly due to int overflow.
for s in \
  @-9223372036854775809 @-9223372036854775808 @-9223372036854775807 \
  0000-01-01T00:00:00 0000-01-01T00:00:01 \
  0000-01-02T00:00:00 \
  1697-10-17T11:03:27 1697-10-17T11:03:28 1697-10-17T11:03:29 \
  1833-11-24T17:31:43 1833-11-24T17:31:44 1833-11-24T17:31:45 \
  1901-12-13T20:45:51 1901-12-13T20:45:52 1901-12-13T20:45:53 \
  1901-12-14T20:45:51 \
  1969-12-31T23:59:58 1969-12-31T23:59:59 \
  1970-01-01T00:00:00 1970-01-01T00:00:01 \
  2038-01-18T03:14:07 \
  2038-01-19T03:14:07 2038-01-19T03:14:08 \
  2106-02-07T06:28:15 2106-02-07T06:28:16 \
  2242-03-16T12:56:31 2242-03-16T12:56:32 \
  9999-12-31T23:59:58 9999-12-31T23:59:59 \
  @9223372036854775807 @9223372036854775808
do
  # Skip a time stamp $s if it's out of range for this platform,
  # of if it uses a notation that this platform does not recognize.
  touch -d $s dir/f$s >/dev/null 2>&1 || continue

  # Likewise for $s.1.  If $s is the most negative time stamp and
  # time stamps are signed, then $s.1 is out of range.
  touch -d $s.1 dir/f$s.$ns >/dev/null 2>&1 || continue

  for frac in   01 001 00001 000001 0000001 00000001 000000001 0000000001 \
	      9 99 999 99999 999999 9999999 99999999 999999999 9999999999
  do
    touch -d $s.$frac dir/f$s.$frac
  done
done

tar -c -f archive.tar dir
tar -d -f archive.tar dir
],
[0],
[], [], [], [],
[pax])

AT_CLEANUP