tests/qemu-iotests/265

   1 #!/usr/bin/env bash
   2 #
   3 # Test reverse-ordered qcow2 writes on a sub-cluster level
   4 #
   5 # Copyright (C) 2019 Red Hat, Inc.
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 #
  20
  21 seq=$(basename $0)
  22 echo "QA output created by $seq"
  23
  24 status=1        # failure is the default!
  25
  26 _cleanup()
  27 {
  28     _cleanup_test_img
  29 }
  30 trap "_cleanup; exit \$status" 0 1 2 3 15
  31
  32 # get standard environment, filters and checks
  33 . ./common.rc
  34 . ./common.filter
  35
  36 # qcow2-specific test
  37 _supported_fmt qcow2
  38 _supported_proto file
  39 _supported_os Linux
  40
  41 echo '--- Writing to the image ---'
  42
  43 # Reduce cluster size so we get more and quicker I/O
  44 _make_test_img -o 'cluster_size=4096' 1M
  45 (for ((kb = 1024 - 4; kb >= 0; kb -= 4)); do \
  46      echo "aio_write -P 42 $((kb + 1))k 2k"; \
  47  done) \
  48  | $QEMU_IO "$TEST_IMG" > /dev/null
  49
  50 echo '--- Verifying its content ---'
  51
  52 (for ((kb = 0; kb < 1024; kb += 4)); do \
  53     echo "read -P 0 ${kb}k 1k"; \
  54     echo "read -P 42 $((kb + 1))k 2k"; \
  55     echo "read -P 0 $((kb + 3))k 1k"; \
  56  done) \
  57  | $QEMU_IO "$TEST_IMG" | _filter_qemu_io | grep 'verification'
  58
  59 # Status of qemu-io
  60 if [ ${PIPESTATUS[1]} = 0 ]; then
  61     echo 'Content verified.'
  62 fi
  63
  64 # success, all done
  65 echo "*** done"
  66 rm -f $seq.full
  67 status=0