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https://github.com/linux-apfs/apfstests.git
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Dave Chinner
cf89aed924
Fully scripted conversion, see script in initial SPDX license commit message. Signed-off-by: Dave Chinner <dchinner@redhat.com>
79 lines
1.7 KiB
Bash
Executable File
79 lines
1.7 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved.
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#
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# FS QA Test No. 142
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#
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# Ensure that reflinking a file N times and CoWing the copies leaves the
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# original intact.
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# - Create a file and record its hash
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# - Create some reflink copies
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# - Rewrite all the reflink copies
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# - Compare the contents of the original file
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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rm -rf $tmp.* $testdir
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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. ./common/reflink
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# real QA test starts here
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_supported_os Linux
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_require_test_reflink
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_require_cp_reflink
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rm -f $seqres.full
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testdir=$TEST_DIR/test-$seq
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rm -rf $testdir
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mkdir $testdir
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echo "Create the original file blocks"
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blksz=65536
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nr=9
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filesize=$((blksz * nr))
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_pwrite_byte 0x61 0 $((blksz * 256)) $testdir/file1 >> $seqres.full
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_test_cycle_mount
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md5sum $testdir/file1 | _filter_test_dir
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csum=$(_md5_checksum $testdir/file1)
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echo "Create the reflink copies"
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seq 2 $nr | while read i; do
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_cp_reflink $testdir/file1 $testdir/file$i
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done
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_test_cycle_mount
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echo "Rewrite the copies"
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seq 2 $nr | while read i; do
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_pwrite_byte 0x62 0 $((blksz * 256)) $testdir/file$i >> $seqres.full
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done
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_test_cycle_mount
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echo "Examine original file"
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md5sum $testdir/file1 | _filter_test_dir
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md5sum $testdir/file2 | _filter_test_dir
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mod_csum=$(_md5_checksum $testdir/file2)
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new_csum=$(_md5_checksum $testdir/file1)
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test ${csum} != ${mod_csum} || echo "checksums do not match"
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test ${csum} = ${new_csum} || echo "checksums do not match"
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# success, all done
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status=0
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exit
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