minix/tests/sbin/resize_ffs/common.sh

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# Common settings and functions for the various resize_ffs tests.
#
# called from atf_init_test_cases
setupvars()
{
IMG=fsimage
TDBASE64=$(atf_get_srcdir)/testdata.tar.gz.base64
GOODMD5=$(atf_get_srcdir)/testdata.md5
# set BYTESWAP to opposite-endian.
if [ $(sysctl -n hw.byteorder) = "1234" ]; then
BYTESWAP=be
else
BYTESWAP=le
fi
}
# test_case() taken from the tests/ipf/h_common.sh
# Used to declare the atf goop for a test.
test_case()
{
local name="${1}"; shift
local check_function="${1}"; shift
atf_test_case "${name}" cleanup
eval "${name}_head() { \
atf_set "require.user" "root" ; \
atf_set "require.progs" "rump_ffs" ; \
}"
eval "${name}_body() { \
${check_function} " "${@}" "; \
}"
eval "${name}_cleanup() { \
umount -f mnt ; \
: reset error ; \
}"
}
# Used to declare the atf goop for a test expected to fail.
test_case_xfail()
{
local name="${1}"; shift
local reason="${1}"; shift
local check_function="${1}"; shift
atf_test_case "${name}" cleanup
eval "${name}_head() { \
atf_set "require.user" "root" ; \
}"
eval "${name}_body() { \
atf_expect_fail "${reason}" ; \
${check_function} " "${@}" "; \
}"
eval "${name}_cleanup() { \
umount -f mnt ; \
: reset error ; \
}"
}
# copy_data requires the mount already done; makes one copy of the test data
copy_data ()
{
uudecode -p ${TDBASE64} | (cd mnt; tar xzf - -s/testdata/TD$1/)
}
copy_multiple ()
{
local i
for i in $(seq $1); do
copy_data $i
done
}
# remove_data removes one directory worth of test data; the purpose
# is to ensure data exists near the end of the fs under test.
remove_data ()
{
rm -rf mnt/TD$1
}
remove_multiple ()
{
local i
for i in $(seq $1); do
remove_data $i
done
}
# verify that the data in a particular directory is still OK
# generated md5 file doesn't need explicit cleanup thanks to ATF
check_data ()
{
(cd mnt/TD$1 && md5 *) > TD$1.md5
atf_check diff -u ${GOODMD5} TD$1.md5
}
# supply begin and end arguments
check_data_range ()
{
local i
for i in $(seq $1 $2); do
check_data $i
done
}
resize_ffs()
{
echo "in resize_ffs:" ${@}
local bs=$1
local fragsz=$2
local osize=$3
local nsize=$4
local fslevel=$5
local numdata=$6
local swap=$7
mkdir -p mnt
echo "bs is ${bs} numdata is ${numdata}"
echo "****resizing fs with blocksize ${bs}"
# we want no more than 16K/inode to allow test files to copy.
local fpi=$((fragsz * 4))
local i
if [ $fpi -gt 16384 ]; then
i="-i 16384"
fi
if [ x$swap != x ]; then
newfs -B ${BYTESWAP} -O${fslevel} -b ${bs} -f ${fragsz} \
-s ${osize} ${i} -F ${IMG}
else
newfs -O${fslevel} -b ${bs} -f ${fragsz} -s ${osize} ${i} \
-F ${IMG}
fi
# we're specifying relative paths, so rump_ffs warns - ignore.
atf_check -s exit:0 -e ignore rump_ffs ${IMG} mnt
copy_multiple ${numdata}
if [ ${nsize} -lt ${osize} ]; then
# how much data to remove so fs can be shrunk
local remove=$((numdata-numdata*nsize/osize))
local dataleft=$((numdata-remove))
echo remove is $remove dataleft is $dataleft
remove_multiple ${remove}
fi
umount mnt
atf_check -s exit:0 -o ignore resize_ffs -y -s ${nsize} ${IMG}
atf_check -s exit:0 -o ignore fsck_ffs -f -n -F ${IMG}
atf_check -s exit:0 -e ignore rump_ffs ${IMG} mnt
if [ ${nsize} -lt ${osize} ]; then
check_data_range $((remove + 1)) ${numdata}
else
# checking everything because we don't delete on grow
check_data_range 1 ${numdata}
fi
umount mnt
}