tests/qemu-iotests/063

   1 #!/usr/bin/env bash
   2 #
   3 # test of qemu-img convert -n - convert without creation
   4 #
   5 # Copyright (C) 2009 Red Hat, Inc.
   6 # Copyright (C) 2013 Alex Bligh (alex@alex.org.uk)
   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=alex@alex.org.uk
  24
  25 seq=`basename $0`
  26 echo "QA output created by $seq"
  27
  28 status=1        # failure is the default!
  29
  30 _cleanup()
  31 {
  32         _cleanup_test_img
  33         rm -f "$TEST_IMG.orig" "$TEST_IMG.raw1" "$TEST_IMG.raw2"
  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 . ./common.pattern
  41
  42 _supported_fmt qcow qcow2 vmdk qed raw
  43 _supported_proto file
  44 _supported_os Linux
  45 _unsupported_imgopts "subformat=monolithicFlat" \
  46                      "subformat=twoGbMaxExtentFlat" \
  47                      "subformat=twoGbMaxExtentSparse"
  48
  49 _make_test_img 4M
  50
  51 echo "== Testing conversion with -n fails with no target file =="
  52 # check .orig file does not exist
  53 rm -f "$TEST_IMG.orig"
  54 if $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -n "$TEST_IMG" "$TEST_IMG.orig" >/dev/null 2>&1; then
  55     exit 1
  56 fi
  57
  58 echo "== Testing conversion with -n succeeds with a target file =="
  59 rm -f "$TEST_IMG.orig"
  60 cp "$TEST_IMG" "$TEST_IMG.orig"
  61 if ! $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -n "$TEST_IMG" "$TEST_IMG.orig" ; then
  62     exit 1
  63 fi
  64
  65 echo "== Testing conversion to raw is the same after conversion with -n =="
  66 # compare the raw files
  67 if ! $QEMU_IMG convert -f $IMGFMT -O raw "$TEST_IMG" "$TEST_IMG.raw1" ; then
  68     exit 1
  69 fi
  70
  71 if ! $QEMU_IMG convert -f $IMGFMT -O raw "$TEST_IMG.orig" "$TEST_IMG.raw2" ; then
  72     exit 1
  73 fi
  74
  75 if ! cmp "$TEST_IMG.raw1" "$TEST_IMG.raw2" ; then
  76     exit 1
  77 fi
  78
  79 echo "== Testing conversion back to original format =="
  80 if ! $QEMU_IMG convert -f raw -O $IMGFMT -n "$TEST_IMG.raw2" "$TEST_IMG" ; then
  81     exit 1
  82 fi
  83 _check_test_img
  84
  85 echo "== Testing conversion to a smaller file fails =="
  86 rm -f "$TEST_IMG.orig"
  87 mv "$TEST_IMG" "$TEST_IMG.orig"
  88 _make_test_img 2M
  89 if $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -n "$TEST_IMG.orig" "$TEST_IMG" >/dev/null 2>&1; then
  90     exit 1
  91 fi
  92
  93 echo "== Regression testing for copy offloading bug =="
  94
  95 _make_test_img 1M
  96 TEST_IMG="$TEST_IMG.target" _make_test_img 1M
  97 $QEMU_IO -c 'write -P 1 0 512k' -c 'write -P 2 512k 512k' "$TEST_IMG" | _filter_qemu_io
  98 $QEMU_IO -c 'write -P 4 512k 512k' -c 'write -P 3 0 512k' "$TEST_IMG.target" | _filter_qemu_io
  99 $QEMU_IMG convert -n -O $IMGFMT "$TEST_IMG" "$TEST_IMG.target"
 100 $QEMU_IMG compare "$TEST_IMG" "$TEST_IMG.target"
 101
 102 echo "*** done"
 103 rm -f $seq.full
 104 status=0
 105 exit 0