t_sizes.sh revision 302408 
1# $NetBSD: t_sizes.sh,v 1.5 2010/11/07 17:51:18 jmmv Exp $
2#
3# Copyright (c) 2005, 2006, 2007, 2008 The NetBSD Foundation, Inc.
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions
8# are met:
9# 1. Redistributions of source code must retain the above copyright
10#    notice, this list of conditions and the following disclaimer.
11# 2. Redistributions in binary form must reproduce the above copyright
12#    notice, this list of conditions and the following disclaimer in the
13#    documentation and/or other materials provided with the distribution.
14#
15# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
16# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
17# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
19# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25# POSSIBILITY OF SUCH DAMAGE.
26#
27
28#
29# Verifies that the file system controls memory usage correctly.
30#
31
32atf_test_case small
33small_head() {
34	atf_set "descr" "Checks the status after creating a small file"
35	atf_set "require.user" "root"
36}
37small_body() {
38	test_mount -o -s10M
39
40	echo a >a || atf_fail "Could not create file"
41	eval $($(atf_get_srcdir)/h_tools statvfs .)
42	f_bused=$((${f_blocks} - ${f_bfree}))
43	[ ${f_bused} -gt 1 ] || atf_fail "Incorrect bused count"
44	atf_check -s eq:0 -o empty -e empty rm a
45
46	test_unmount
47}
48
49atf_test_case big
50big_head() {
51	atf_set "descr" "Checks the status after creating a big file"
52	atf_set "require.user" "root"
53}
54big_body() {
55	test_mount -o -s10M
56
57	pagesize=$(sysctl hw.pagesize | cut -d ' ' -f 3)
58	eval $($(atf_get_srcdir)/h_tools statvfs . | sed -e 's|^f_|cf_|')
59	cf_bused=$((${cf_blocks} - ${cf_bfree}))
60
61	atf_check -s eq:0 -o ignore -e ignore \
62	    dd if=/dev/zero of=a bs=1m count=5
63	eval $($(atf_get_srcdir)/h_tools statvfs .)
64	f_bused=$((${f_blocks} - ${f_bfree}))
65	[ ${f_bused} -ne ${cf_bused} ] || atf_fail "bused did not change"
66	[ ${f_bused} -gt $((5 * 1024 * 1024 / ${pagesize})) ] || \
67	    atf_fail "bused too big"
68	of_bused=${f_bused}
69	atf_check -s eq:0 -o empty -e empty rm a
70	eval $($(atf_get_srcdir)/h_tools statvfs .)
71	f_bused=$((${f_blocks} - ${f_bfree}))
72	[ ${f_bused} -lt ${of_bused} ] || \
73	    atf_fail "bused was not correctly restored"
74
75	test_unmount
76}
77
78atf_test_case overflow
79overflow_head() {
80	atf_set "descr" "Checks the status after creating a big file that" \
81	                "overflows the file system limits"
82	atf_set "require.user" "root"
83}
84overflow_body() {
85	test_mount -o -s10M
86
87	atf_check -s eq:0 -o empty -e empty touch a
88	atf_check -s eq:0 -o empty -e empty rm a
89	eval $($(atf_get_srcdir)/h_tools statvfs .)
90	of_bused=$((${f_blocks} - ${f_bfree}))
91	atf_check -s eq:1 -o ignore -e ignore \
92	    dd if=/dev/zero of=a bs=1m count=15
93	atf_check -s eq:0 -o empty -e empty rm a
94	eval $($(atf_get_srcdir)/h_tools statvfs .)
95	f_bused=$((${f_blocks} - ${f_bfree}))
96	[ ${f_bused} -ge ${of_bused} -a ${f_bused} -le $((${of_bused} + 1)) ] \
97	    || atf_fail "Incorrect bused"
98
99	test_unmount
100}
101
102atf_test_case overwrite
103overwrite_head() {
104	atf_set "descr" "Checks that writing to the middle of a file" \
105	                "does not change its size"
106	atf_set "require.user" "root"
107}
108overwrite_body() {
109	test_mount -o -s10M
110
111	atf_check -s eq:0 -o ignore -e ignore \
112	    dd if=/dev/zero of=a bs=1024 count=10
113	sync
114	atf_check -s eq:0 -o ignore -e ignore \
115	    dd if=/dev/zero of=a bs=1024 conv=notrunc seek=1 count=1
116	sync
117	eval $(stat -s a)
118	[ ${st_size} -eq 10240 ] || atf_fail "Incorrect file size"
119
120	test_unmount
121}
122
123atf_init_test_cases() {
124	. $(atf_get_srcdir)/../h_funcs.subr
125	. $(atf_get_srcdir)/h_funcs.subr
126
127	atf_add_test_case small
128	atf_add_test_case big
129	atf_add_test_case overflow
130	atf_add_test_case overwrite
131}
132