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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved.
#
# FS QA Test No. 122
#
# Ensuring that we cannot dedupe non-matching parts of files:
# - Fail to dedupe non-identical parts of two different files
# - Check that nothing changes in either file
#
. ./common/preamble
_begin_fstest auto quick clone dedupe
# Override the default cleanup function.
_cleanup()
{
cd /
rm -rf $tmp.* $testdir
}
# Import common functions.
. ./common/filter
. ./common/reflink
# real QA test starts here
_require_test_dedupe
testdir=$TEST_DIR/test-$seq
rm -rf $testdir
mkdir $testdir
echo "Create the original files"
blksz=65536
_require_congruent_file_oplen $TEST_DIR $blksz
_pwrite_byte 0x61 $((blksz * 2)) $((blksz * 6)) $testdir/file1 >> $seqres.full
_pwrite_byte 0x62 $((blksz * 2)) $((blksz * 6)) $testdir/file2 >> $seqres.full
_test_cycle_mount
md5sum $testdir/file1 | _filter_test_dir
md5sum $testdir/file2 | _filter_test_dir
_compare_range $testdir/file1 0 $testdir/file2 0 "$((blksz * 8))" \
|| echo "Files 1-2 do not match (intentional)"
echo "(Fail to) dedupe the middle blocks together"
free_before=$(stat -f -c '%a' $testdir)
_dedupe_range $testdir/file1 $((blksz * 4)) $testdir/file2 \
$((blksz * 4)) $((blksz * 2)) 2>&1 | _filter_dedupe_error
_test_cycle_mount
free_after=$(stat -f -c '%a' $testdir)
echo "freesp changed by $free_before -> $free_after" >> $seqres.full
echo "Compare sections"
md5sum $testdir/file1 | _filter_test_dir
md5sum $testdir/file2 | _filter_test_dir
_compare_range $testdir/file1 0 $testdir/file2 0 $((blksz * 4)) \
|| echo "Start sections do not match (intentional)"
_compare_range $testdir/file1 $((blksz * 4)) $testdir/file2 \
$((blksz * 4)) $((blksz * 2)) \
|| echo "Middle sections do not match (intentional)"
_compare_range $testdir/file1 $((blksz * 6)) $testdir/file2 \
$((blksz * 6)) $((blksz * 2)) \
|| echo "End sections do not match (intentional)"
# success, all done
status=0
exit
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