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coreutils/tests/cp/proc-zero-len.sh
Daniel Baumann c08a8f7410
Adding upstream version 9.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-21 07:57:52 +02:00

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#!/bin/sh
# Ensure that cp copies contents of non-empty "regular" file with st_size==0
# Copyright (C) 2007-2025 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 of the License, 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 <https://www.gnu.org/licenses/>.
. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
print_ver_ cp
touch empty || framework_failure_
f=/proc/cpuinfo
test -r $f || f=empty
cat $f > out || fail=1
# With coreutils-6.9, this would create a zero-length "exp" file.
# Skip this test on architectures like aarch64 where the inode
# number of the file changed during the cp run.
cp $f exp 2>err \
|| { fail=1;
grep 'replaced while being copied' err \
&& skip_ "File $f is being replaced while being copied"; }
# Don't simply compare contents; they might differ,
# e.g., if CPU freq changes between cat and cp invocations.
# Instead, simply compare whether they're both nonempty.
test -s out \
&& { rm -f out; echo nonempty > out; }
test -s exp \
&& { rm -f exp; echo nonempty > exp; }
compare exp out || fail=1
Exit $fail