1 # Test time stamps for GNU tar. -*- Autotest -*-
3 # Copyright 2012-2023 Free Software Foundation, Inc.
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 3, or (at your option)
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program. If not, see <http://www.gnu.org/licenses/>.
18 # written by Paul Eggert
20 AT_SETUP([time: tricky time stamps])
21 AT_KEYWORDS([time time01])
27 # Test files with time stamps that are near common sources of error,
28 # typically near powers of 2 (for seconds) or near 0, 1970, or 9999 (years).
29 # Use GNU-style @ notation for very large time stamps, since they
30 # typically don't render into years correctly due to int overflow.
32 @-9223372036854775809 @-9223372036854775808 @-9223372036854775807 \
33 0000-01-01T00:00:00 0000-01-01T00:00:01 \
35 1697-10-17T11:03:27 1697-10-17T11:03:28 1697-10-17T11:03:29 \
36 1833-11-24T17:31:43 1833-11-24T17:31:44 1833-11-24T17:31:45 \
37 1901-12-13T20:45:51 1901-12-13T20:45:52 1901-12-13T20:45:53 \
39 1969-12-31T23:59:58 1969-12-31T23:59:59 \
40 1970-01-01T00:00:00 1970-01-01T00:00:01 \
42 2038-01-19T03:14:07 2038-01-19T03:14:08 \
43 2106-02-07T06:28:15 2106-02-07T06:28:16 \
44 2242-03-16T12:56:31 2242-03-16T12:56:32 \
45 9999-12-31T23:59:58 9999-12-31T23:59:59 \
46 @9223372036854775807 @9223372036854775808
48 # Skip a time stamp $s if it's out of range for this platform,
49 # of if it uses a notation that this platform does not recognize.
50 touch -d $s dir/f$s >/dev/null 2>&1 || continue
52 # Likewise for $s.1. If $s is the most negative time stamp and
53 # time stamps are signed, then $s.1 is out of range.
54 touch -d $s.1 dir/f$s.$ns >/dev/null 2>&1 || continue
56 for frac in 01 001 00001 000001 0000001 00000001 000000001 0000000001 \
57 9 99 999 99999 999999 9999999 99999999 999999999 9999999999
59 touch -d $s.$frac dir/f$s.$frac
63 tar -c -f archive.tar dir
64 tar -d -f archive.tar dir