xref: /freebsd/tools/regression/tmpfs/t_sizes (revision fe75646a0234a261c0013bf1840fdac4acaf0cec)
1#!/bin/sh
2#
3# $NetBSD: t_sizes,v 1.6 2007/03/11 10:09:17 pooka 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 file system controls memory usage correctly.
37#
38
39test_run() {
40	test_mount -o  size=10485760
41
42	pagesize=$(sysctl hw.pagesize | cut -d ' ' -f 2)
43
44	test_name "Get status of clean filesystem"
45	eval $(${Src_Dir}/h_tools statvfs . | sed -e 's|^f_|cf_|')
46	cf_bused=$((${cf_blocks} - ${cf_bfree}))
47
48	test_name "Creation of small file"
49	echo a >a || die
50	test_name "statvfs(2) reports correct block accounting"
51	eval $(${Src_Dir}/h_tools statvfs .)
52	f_bused=$((${f_blocks} - ${f_bfree}))
53	[ ${f_bused} -gt 1 ] || die
54	rm a || die
55
56	test_name "Creation of big file"
57	dd if=/dev/zero of=a bs=1m count=5 >/dev/null 2>&1 || die
58	test_name "statvfs(2) reports correct block accounting"
59	eval $(${Src_Dir}/h_tools statvfs .)
60	f_bused=$((${f_blocks} - ${f_bfree}))
61	[ ${f_bused} -ne ${cf_bused} ] || die
62	[ ${f_bused} -gt $((5 * 1024 * 1024 / ${pagesize})) ] || die
63	of_bused=${f_bused}
64	rm a || die
65	eval $(${Src_Dir}/h_tools statvfs .)
66	f_bused=$((${f_blocks} - ${f_bfree}))
67	[ ${f_bused} -lt ${of_bused} ] || die
68
69	test_name "Creation of big file that overflows the filesystem"
70	of_bused=${f_bused}
71	dd if=/dev/zero of=a bs=1m count=15 >/dev/null 2>&1 && die
72	rm a || die
73	test_name "statvfs(2) reports correct block accounting"
74	eval $(${Src_Dir}/h_tools statvfs .)
75	f_bused=$((${f_blocks} - ${f_bfree}))
76	[ ${f_bused} -ge ${of_bused} -a ${f_bused} -le $((${of_bused} + 1)) ] \
77	    || die
78
79	test_name "Write to middle of a file does not change size"
80	dd if=/dev/zero of=a bs=1024 count=10 >/dev/null 2>&1 || die
81	sync
82	dd if=/dev/zero of=a bs=1024 conv=notrunc seek=1 count=1	\
83	     >/dev/null 2>&1 || die
84	sync
85	eval $(stat -s a)
86	[ ${st_size} -eq 10240 ] || die
87
88	test_unmount
89}
90
91. ${SUBRDIR}/h_funcs.subr
92