#!/usr/bin/env bash
#
# qemu-img dd test for the skip option
#
# Copyright (C) 2016 Reda Sallahi
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

owner=fullmanet@gmail.com

seq="$(basename $0)"
echo "QA output created by $seq"

status=1

_cleanup()
{
    _cleanup_test_img
    _rm_test_img "$TEST_IMG.out"
    _rm_test_img "$TEST_IMG.out.dd"
}
trap "_cleanup; exit \$status" 0 1 2 3 15

. ./common.rc
. ./common.filter
. ./common.pattern

_supported_fmt raw
_supported_proto file
_supported_os Linux

TEST_SKIP_BLOCKS="1 2 30 30K"

for skip in $TEST_SKIP_BLOCKS; do
    echo
    echo "== Creating image =="

    size=1M
    _make_test_img $size
    _check_test_img
    $QEMU_IO -c "write -P 0xa 24 512k" "$TEST_IMG" | _filter_qemu_io

    echo
    echo "== Converting the image with dd with skip=$skip =="

    $QEMU_IMG dd if="$TEST_IMG" of="$TEST_IMG.out" skip="$skip" -O "$IMGFMT" \
        2> /dev/null
    TEST_IMG="$TEST_IMG.out" _check_test_img
    dd if="$TEST_IMG" of="$TEST_IMG.out.dd" skip="$skip" status=none

    echo
    echo "== Compare the images with qemu-img compare =="

    $QEMU_IMG compare "$TEST_IMG.out.dd" "$TEST_IMG.out"
done

echo
echo "*** done"
rm -f "$seq.full"
status=0