#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2019 SUSE Linux Products GmbH. All Rights Reserved.
#
# FS QA Test btrfs/195
#
# Test raid profile conversion. It's sufficient to test all dest profiles as
# source profiles just rely on being able to read the data and metadata.
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"

here=`pwd`
tmp=/tmp/$$
status=1	# failure is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15

_cleanup()
{
	cd /
	rm -f $tmp.*
}

# get standard environment, filters and checks
. ./common/rc
. ./common/filter

# remove previous $seqres.full before test
rm -f $seqres.full

# real QA test starts here

# Modify as appropriate.
_supported_fs btrfs
_require_scratch_dev_pool 4


declare -a TEST_VECTORS=(
# $nr_dev_min:$data:$metadata:$data_convert:$metadata_convert
"4:single:raid1"
"4:single:raid0"
"4:single:raid10"
"4:single:dup"
"4:single:raid5"
"4:single:raid6"
"2:raid1:single"
)

run_testcase() {
	IFS=':' read -ra args <<< $1
	num_disks=${args[0]}
	src_type=${args[1]}
	dst_type=${args[2]}

	_scratch_dev_pool_get $num_disks

	echo "=== Running test: $1 ===" >> $seqres.full

	_scratch_pool_mkfs -d$src_type >> $seqres.full 2>&1
	_scratch_mount

	# Create random filesystem with 20k write ops
	$FSSTRESS_PROG -d $SCRATCH_MNT -w -n 10000 $FSSTRESS_AVOID >>$seqres.full 2>&1

	_run_btrfs_balance_start -f -dconvert=$dst_type $SCRATCH_MNT >> $seqres.full
	[ $? -eq 0 ] || echo "$1: Failed convert"

	$BTRFS_UTIL_PROG scrub start -B $SCRATCH_MNT >>$seqres.full 2>&1
	[ $? -eq 0 ] || echo "$1: Scrub failed"

	_scratch_unmount
	_check_btrfs_filesystem $SCRATCH_DEV
	_scratch_dev_pool_put
}

for i in "${TEST_VECTORS[@]}"; do
	run_testcase $i
done

echo "Silence is golden"
status=0
exit