tests/qemu-iotests/062

   1 #!/usr/bin/env bash
   2 # group: rw auto quick
   3 #
   4 # Test case for snapshotting images with unallocated zero clusters in
   5 # qcow2
   6 #
   7 # Copyright (C) 2013 Red Hat, Inc.
   8 #
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 2 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 #
  22
  23 # creator
  24 owner=mreitz@redhat.com
  25
  26 seq=`basename $0`
  27 echo "QA output created by $seq"
  28
  29 status=1        # failure is the default!
  30
  31 _cleanup()
  32 {
  33         _cleanup_test_img
  34 }
  35 trap "_cleanup; exit \$status" 0 1 2 3 15
  36
  37 # get standard environment, filters and checks
  38 . ./common.rc
  39 . ./common.filter
  40
  41 # This tests qcow2-specific low-level functionality
  42 _supported_fmt qcow2
  43 _supported_proto generic
  44 # We need zero clusters and snapshots
  45 _unsupported_imgopts 'compat=0.10' 'refcount_bits=1[^0-9]' data_file
  46
  47 IMG_SIZE=64M
  48
  49 echo
  50 echo "=== Testing snapshotting an image with zero clusters ==="
  51 echo
  52 _make_test_img $IMG_SIZE
  53 # Write some zero clusters
  54 $QEMU_IO -c "write -z 0 256k" "$TEST_IMG" | _filter_qemu_io
  55 # Create a snapshot
  56 $QEMU_IMG snapshot -c foo "$TEST_IMG"
  57 # Check the image (there shouldn't be any errors or leaks)
  58 _check_test_img
  59
  60 # success, all done
  61 echo "*** done"
  62 rm -f $seq.full
  63 status=0