1#!/bin/sh
2# ensure that mv maintains a in this case: touch a; ln a b; mv a b
3
4# Copyright (C) 2003-2023 Free Software Foundation, Inc.
5
6# This program is free software: you can redistribute it and/or modify
7# it under the terms of the GNU General Public License as published by
8# the Free Software Foundation, either version 3 of the License, or
9# (at your option) any later version.
10
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14# GNU General Public License for more details.
15
16# You should have received a copy of the GNU General Public License
17# along with this program.  If not, see <https://www.gnu.org/licenses/>.
18
19. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
20print_ver_ mv
21touch a || framework_failure_
22ln a b || framework_failure_
23
24# Between coreutils-5.0 and coreutils-8.24, 'a' would be removed.
25# Before coreutils-5.0.1 the issue would not have been diagnosed.
26# We don't emulate the rename(a,b) with unlink(a) as that would
27# introduce races with overlapping mv instances removing both links.
28mv a b 2>err && fail=1
29printf "mv: 'a' and 'b' are the same file\n" > exp
30compare exp err || fail=1
31
32test -r a || fail=1
33test -r b || fail=1
34
35# Make sure it works with --backup.
36mv --backup=simple a b || fail=1
37test -r a && fail=1
38test -r b || fail=1
39test -r b~ || fail=1
40
41Exit $fail
42