mirror of
git://git.sv.gnu.org/coreutils.git
synced 2026-04-20 02:36:16 +02:00
225cb8d747
* src/cat.c (main): Improve test for when copying will exhaust the output device. Do not rely on st_size, which is unreliable in /proc. Use lseek instead; this is good enough here. * tests/cat/cat-self.sh: Test the relaxation of the heuristic for self-copying.
54 lines
1.7 KiB
Bash
Executable File
54 lines
1.7 KiB
Bash
Executable File
#!/bin/sh
|
|
# Check that cat operates correctly when the input is the same as the output.
|
|
|
|
# Copyright 2014-2024 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/>.
|
|
|
|
. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
|
|
print_ver_ cat
|
|
|
|
echo x >out || framework_failure_
|
|
echo x >out1 || framework_failure_
|
|
returns_ 1 cat out >>out || fail=1
|
|
compare out out1 || fail=1
|
|
|
|
# This example is taken from the POSIX spec for 'cat'.
|
|
echo x >doc || framework_failure_
|
|
echo y >doc.end || framework_failure_
|
|
cat doc doc.end >doc || fail=1
|
|
compare doc doc.end || fail=1
|
|
|
|
# This terminates even though it copies a file to itself.
|
|
# Coreutils 9.5 and earlier rejected this.
|
|
echo x >fx || framework_failure_
|
|
echo y >fy || framework_failure_
|
|
cat fx fy >fxy || fail=1
|
|
for i in 1 2; do
|
|
cat fx >fxy$i || fail=1
|
|
done
|
|
for i in 3 4 5 6; do
|
|
cat fx >fx$i || fail=1
|
|
done
|
|
cat - fy <fxy1 1<>fxy1 || fail=1
|
|
compare fxy fxy1 || fail=1
|
|
cat fxy2 fy 1<>fxy2 || fail=1
|
|
compare fxy fxy2 || fail=1
|
|
returns_ 1 cat fx fx3 1<>fx3 || fail=1
|
|
returns_ 1 cat - fx4 <fx 1<>fx4 || fail=1
|
|
returns_ 1 cat fx5 >>fx5 || fail=1
|
|
returns_ 1 cat <fx6 >>fx6 || fail=1
|
|
|
|
Exit $fail
|