xref: /freebsd/tools/regression/tmpfs/t_truncate (revision d37eb51047221dc3322b34db1038ff3aa533883f)
1#!/bin/sh
2#
3# $NetBSD: t_truncate,v 1.4 2006/11/09 16:20:06 jmmv Exp $
4#
5# Copyright (c) 2005, 2006 The NetBSD Foundation, Inc.
6# All rights reserved.
7#
8# This code is derived from software contributed to The NetBSD Foundation
9# by Julio M. Merino Vidal, developed as part of Google's Summer of Code
10# 2005 program.
11#
12# Redistribution and use in source and binary forms, with or without
13# modification, are permitted provided that the following conditions
14# are met:
15# 1. Redistributions of source code must retain the above copyright
16#    notice, this list of conditions and the following disclaimer.
17# 2. Redistributions in binary form must reproduce the above copyright
18#    notice, this list of conditions and the following disclaimer in the
19#    documentation and/or other materials provided with the distribution.
20#
21# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31# POSSIBILITY OF SUCH DAMAGE.
32#
33#
34
35#
36# Verifies that the truncate operations work.
37#
38
39test_run() {
40	test_mount
41
42	test_name "Write to new file works"
43	jot 10000 >a || die
44	test_name "Truncate the file to smaller size works"
45	echo foo >a || die
46	[ $(md5 a | cut -d ' ' -f 4) = d3b07384d113edec49eaa6238ad5ff00 ] || die
47
48	test_name "Truncate to zero size"
49	>a || die
50	test_name "Truncate to zero size, second try"
51	>a || die
52
53	test_unmount
54}
55
56. ${SUBRDIR}/h_funcs.subr
57