1#!/bin/sh
2# Validate truncate parameter combinations
3
4# Copyright (C) 2008-2023 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_ truncate
21
22
23# must specify at least 1 file
24returns_ 1 truncate --size=0 || fail=1
25
26# must specify size. don't default to 0
27returns_ 1 truncate file || fail=1
28
29# mixture of absolute size & reference not allowed
30returns_ 1 truncate --size=0 --reference=file file || fail=1
31
32# blocks without size is not valid
33returns_ 1 truncate --io-blocks --reference=file file || fail=1
34
35# must specify valid numbers
36returns_ 1 truncate --size="invalid" file || fail=1
37
38# spaces not significant around size
39returns_ 1 truncate --size="> -1" file || fail=1
40truncate --size=" >1" file || fail=1 #file now 1
41truncate --size=" +1" file || fail=1 #file now 2
42test $(stat --format %s file) = 2 || fail=1
43
44# reference allowed with relative size
45truncate --size=" +1" -r file file || fail=1 #file now 3
46test $(stat --format %s file) = 3 || fail=1
47
48# reference allowed alone also
49truncate -r file file || fail=1 #file still 3
50test $(stat --format %s file) = 3 || fail=1
51truncate -r file file2 || fail=1 #file2 now 3
52test $(stat --format %s file2) = 3 || fail=1
53
54Exit $fail
55