btrfs-progs/tests/fsck-tests/013-extent-tree-rebuild/test.sh
David Sterba 047dd1bf5d btrfs-progs: tests: split make rule for fsck and convert tests, fix prerequisities
We'd like to run each class of tests separately. There were some missing
prerequisities that should be/are verified by the tests, makefile rules
have been synced.

Signed-off-by: David Sterba <dsterba@suse.cz>
2015-04-07 18:36:59 +02:00

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#!/bin/bash
source $TOP/tests/common
check_prereq btrfs-debug-tree
check_prereq mkfs.btrfs
setup_root_helper
if [ -z $TEST_DEV ]; then
echo "\$TEST_DEV not given, use $TOP/test/test.img as fallback" >> \
$RESULTS
TEST_DEV="$TOP/tests/test.img"
# Need at least 1G to avoid mixed block group, which extent tree
# rebuild doesn't support.
run_check truncate -s 1G $TEST_DEV
fi
if [ -z $TEST_MNT ];then
echo " [NOTRUN] extent tree rebuild, need TEST_MNT variant"
exit 0
fi
# test whether fsck can rebuild a corrupted extent tree
test_extent_tree_rebuild()
{
echo " [TEST] extent tree rebuild"
run_check $SUDO_HELPER $TOP/mkfs.btrfs -f $TEST_DEV
run_check $SUDO_HELPER mount $TEST_DEV $TEST_MNT
run_check $SUDO_HELPER cp -aR /lib/modules/`uname -r`/ $TEST_MNT
for i in `seq 1 100`;do
run_check $SUDO_HELPER $TOP/btrfs sub snapshot $TEST_MNT \
$TEST_MNT/snapaaaaaaa_$i
done
run_check $SUDO_HELPER umount $TEST_DEV
# get extent root bytenr
extent_root_bytenr=`$SUDO_HELPER $TOP/btrfs-debug-tree -r $TEST_DEV | \
grep extent | awk '{print $7}'`
if [ -z $extent_root_bytenr ];then
_fail "fail to get extent root bytenr"
fi
# corrupt extent root node block
run_check $SUDO_HELPER $TOP/btrfs-corrupt-block -l $extent_root_bytenr \
-b 4096 $TEST_DEV
$SUDO_HELPER $TOP/btrfs check $TEST_DEV >& /dev/null && \
_fail "btrfs check should detect failure"
run_check $SUDO_HELPER $TOP/btrfs check --init-extent-tree $TEST_DEV
run_check $SUDO_HELPER $TOP/btrfs check $TEST_DEV
}
test_extent_tree_rebuild