tests/qemu-iotests/187

   1 #!/bin/bash
   2 #
   3 # Test switching between read-only and read-write
   4 #
   5 # Copyright (C) 2017 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 # creator
  22 owner=kwolf@redhat.com
  23
  24 seq=`basename $0`
  25 echo "QA output created by $seq"
  26
  27 here=`pwd`
  28 status=1        # failure is the default!
  29
  30 _cleanup()
  31 {
  32         _cleanup_test_img
  33     rm -f "$TEST_IMG.2"
  34     rm -f "$TEST_IMG.3"
  35 }
  36 trap "_cleanup; exit \$status" 0 1 2 3 15
  37
  38 # get standard environment, filters and checks
  39 . ./common.rc
  40 . ./common.filter
  41
  42 _supported_fmt qcow2
  43 _supported_proto file
  44 _supported_os Linux
  45
  46 size=64M
  47 _make_test_img $size
  48
  49 echo
  50 echo "Start from read-only"
  51 echo
  52
  53 $QEMU_IO -r -c 'write 0 64k' $TEST_IMG | _filter_qemu_io
  54 $QEMU_IO -r -c 'reopen -w' -c 'write 0 64k' $TEST_IMG | _filter_qemu_io
  55 $QEMU_IO -r -c 'reopen -w' -c 'reopen -r' -c 'write 0 64k' $TEST_IMG | _filter_qemu_io
  56
  57 echo
  58 echo "Start from read-write"
  59 echo
  60
  61 $QEMU_IO -c 'write 0 64k' $TEST_IMG | _filter_qemu_io
  62 $QEMU_IO -c 'reopen -r' -c 'write 0 64k' $TEST_IMG | _filter_qemu_io
  63 $QEMU_IO -c 'reopen -r' -c 'reopen -w' -c 'write 0 64k' $TEST_IMG | _filter_qemu_io
  64
  65
  66 # success, all done
  67 echo "*** done"
  68 rm -f $seq.full
  69 status=0