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      1 # $NetBSD: t_sizes.sh,v 1.7 2024/04/28 07:27:41 rillig 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 
     32 atf_test_case small
     33 small_head() {
     34 	atf_set "descr" "Checks the status after creating a small file"
     35 	atf_set "require.user" "root"
     36 }
     37 small_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 	[ ${f_bused} -gt 1 ] || atf_fail "Incorrect bused count"
     44 	atf_check -s exit:0 -o empty -e empty rm a
     45 
     46 	test_unmount
     47 }
     48 
     49 atf_test_case big
     50 big_head() {
     51 	atf_set "descr" "Checks the status after creating a big file"
     52 	atf_set "require.user" "root"
     53 }
     54 big_body() {
     55 	test_mount -o -s10M
     56 
     57 	pagesize=$(sysctl -n hw.pagesize)
     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 exit: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 exit: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 
     78 atf_test_case overflow
     79 overflow_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 }
     84 overflow_body() {
     85 	test_mount -o -s10M
     86 
     87 	atf_check -s exit:0 -o empty -e empty touch a
     88 	atf_check -s exit: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 exit:1 -o ignore -e ignore \
     92 	    dd if=/dev/zero of=a bs=1m count=15
     93 	atf_check -s exit: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 
    102 atf_test_case overwrite
    103 overwrite_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 }
    108 overwrite_body() {
    109 	test_mount -o -s10M
    110 
    111 	atf_check -s exit:0 -o ignore -e ignore \
    112 	    dd if=/dev/zero of=a bs=1024 count=10
    113 	sync
    114 	atf_check -s exit: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 
    123 atf_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