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Diffstat (limited to 'fs/tmpfs/t_sizes.sh')
| -rwxr-xr-x | fs/tmpfs/t_sizes.sh | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/fs/tmpfs/t_sizes.sh b/fs/tmpfs/t_sizes.sh new file mode 100755 index 0000000000000..9673b91ea135b --- /dev/null +++ b/fs/tmpfs/t_sizes.sh @@ -0,0 +1,131 @@ +# $NetBSD: t_sizes.sh,v 1.5 2010/11/07 17:51:18 jmmv Exp $ +# +# Copyright (c) 2005, 2006, 2007, 2008 The NetBSD Foundation, Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS +# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED +# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS +# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. +# + +# +# Verifies that the file system controls memory usage correctly. +# + +atf_test_case small +small_head() { + atf_set "descr" "Checks the status after creating a small file" + atf_set "require.user" "root" +} +small_body() { + test_mount -o -s10M + + echo a >a || atf_fail "Could not create file" + eval $($(atf_get_srcdir)/h_tools statvfs .) + f_bused=$((${f_blocks} - ${f_bfree})) + [ ${f_bused} -gt 1 ] || atf_fail "Incorrect bused count" + atf_check -s eq:0 -o empty -e empty rm a + + test_unmount +} + +atf_test_case big +big_head() { + atf_set "descr" "Checks the status after creating a big file" + atf_set "require.user" "root" +} +big_body() { + test_mount -o -s10M + + pagesize=$(sysctl hw.pagesize | cut -d ' ' -f 3) + eval $($(atf_get_srcdir)/h_tools statvfs . | sed -e 's|^f_|cf_|') + cf_bused=$((${cf_blocks} - ${cf_bfree})) + + atf_check -s eq:0 -o ignore -e ignore \ + dd if=/dev/zero of=a bs=1m count=5 + eval $($(atf_get_srcdir)/h_tools statvfs .) + f_bused=$((${f_blocks} - ${f_bfree})) + [ ${f_bused} -ne ${cf_bused} ] || atf_fail "bused did not change" + [ ${f_bused} -gt $((5 * 1024 * 1024 / ${pagesize})) ] || \ + atf_fail "bused too big" + of_bused=${f_bused} + atf_check -s eq:0 -o empty -e empty rm a + eval $($(atf_get_srcdir)/h_tools statvfs .) + f_bused=$((${f_blocks} - ${f_bfree})) + [ ${f_bused} -lt ${of_bused} ] || \ + atf_fail "bused was not correctly restored" + + test_unmount +} + +atf_test_case overflow +overflow_head() { + atf_set "descr" "Checks the status after creating a big file that" \ + "overflows the file system limits" + atf_set "require.user" "root" +} +overflow_body() { + test_mount -o -s10M + + atf_check -s eq:0 -o empty -e empty touch a + atf_check -s eq:0 -o empty -e empty rm a + eval $($(atf_get_srcdir)/h_tools statvfs .) + of_bused=$((${f_blocks} - ${f_bfree})) + atf_check -s eq:1 -o ignore -e ignore \ + dd if=/dev/zero of=a bs=1m count=15 + atf_check -s eq:0 -o empty -e empty rm a + eval $($(atf_get_srcdir)/h_tools statvfs .) + f_bused=$((${f_blocks} - ${f_bfree})) + [ ${f_bused} -ge ${of_bused} -a ${f_bused} -le $((${of_bused} + 1)) ] \ + || atf_fail "Incorrect bused" + + test_unmount +} + +atf_test_case overwrite +overwrite_head() { + atf_set "descr" "Checks that writing to the middle of a file" \ + "does not change its size" + atf_set "require.user" "root" +} +overwrite_body() { + test_mount -o -s10M + + atf_check -s eq:0 -o ignore -e ignore \ + dd if=/dev/zero of=a bs=1024 count=10 + sync + atf_check -s eq:0 -o ignore -e ignore \ + dd if=/dev/zero of=a bs=1024 conv=notrunc seek=1 count=1 + sync + eval $(stat -s a) + [ ${st_size} -eq 10240 ] || atf_fail "Incorrect file size" + + test_unmount +} + +atf_init_test_cases() { + . $(atf_get_srcdir)/../h_funcs.subr + . $(atf_get_srcdir)/h_funcs.subr + + atf_add_test_case small + atf_add_test_case big + atf_add_test_case overflow + atf_add_test_case overwrite +} |