tests/qemu-iotests/062

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