tests/qemu-iotests/063

   1 #!/usr/bin/env bash
   2 # group: rw auto quick
   3 #
   4 # test of qemu-img convert -n - convert without creation
   5 #
   6 # Copyright (C) 2009 Red Hat, Inc.
   7 # Copyright (C) 2013 Alex Bligh (alex@alex.org.uk)
   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=alex@alex.org.uk
  25
  26 seq=`basename $0`
  27 echo "QA output created by $seq"
  28
  29 status=1        # failure is the default!
  30
  31 _cleanup()
  32 {
  33     _cleanup_test_img
  34     for img in "$TEST_IMG".{orig,raw1,raw2,target}; do
  35         _rm_test_img "$img"
  36     done
  37 }
  38 trap "_cleanup; exit \$status" 0 1 2 3 15
  39
  40 # get standard environment, filters and checks
  41 . ./common.rc
  42 . ./common.filter
  43 . ./common.pattern
  44
  45 _supported_fmt qcow qcow2 vmdk qed raw
  46 _supported_proto file
  47 _unsupported_imgopts "subformat=monolithicFlat" \
  48                      "subformat=twoGbMaxExtentFlat" \
  49                      "subformat=twoGbMaxExtentSparse" \
  50                      "subformat=streamOptimized"
  51
  52 _make_test_img 4M
  53
  54 echo "== Testing conversion with -n fails with no target file =="
  55 if $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -n "$TEST_IMG" "$TEST_IMG.orig" >/dev/null 2>&1; then
  56     exit 1
  57 fi
  58
  59 echo "== Testing conversion with -n succeeds with a target file =="
  60 _rm_test_img "$TEST_IMG.orig"
  61 TEST_IMG="$TEST_IMG.orig" _make_test_img 4M
  62 if ! $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -n "$TEST_IMG" "$TEST_IMG.orig" ; then
  63     exit 1
  64 fi
  65
  66 echo "== Testing conversion to raw is the same after conversion with -n =="
  67 # compare the raw files
  68 if ! $QEMU_IMG convert -f $IMGFMT -O raw "$TEST_IMG" "$TEST_IMG.raw1" ; then
  69     exit 1
  70 fi
  71
  72 if ! $QEMU_IMG convert -f $IMGFMT -O raw "$TEST_IMG.orig" "$TEST_IMG.raw2" ; then
  73     exit 1
  74 fi
  75
  76 if ! cmp "$TEST_IMG.raw1" "$TEST_IMG.raw2" ; then
  77     exit 1
  78 fi
  79
  80 echo "== Testing conversion back to original format =="
  81 if ! $QEMU_IMG convert -f raw -O $IMGFMT -n "$TEST_IMG.raw2" "$TEST_IMG" ; then
  82     exit 1
  83 fi
  84 _check_test_img
  85
  86 echo "== Testing conversion to a smaller file fails =="
  87 TEST_IMG="$TEST_IMG.target" _make_test_img 2M
  88 if $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -n "$TEST_IMG" "$TEST_IMG.target" >/dev/null 2>&1; then
  89     exit 1
  90 fi
  91
  92 echo "== Regression testing for copy offloading bug =="
  93
  94 _make_test_img 1M
  95 TEST_IMG="$TEST_IMG.target" _make_test_img 1M
  96 $QEMU_IO -c 'write -P 1 0 512k' -c 'write -P 2 512k 512k' "$TEST_IMG" | _filter_qemu_io
  97 $QEMU_IO -c 'write -P 4 512k 512k' -c 'write -P 3 0 512k' "$TEST_IMG.target" | _filter_qemu_io
  98 $QEMU_IMG convert -n -O $IMGFMT "$TEST_IMG" "$TEST_IMG.target"
  99 $QEMU_IMG compare "$TEST_IMG" "$TEST_IMG.target"
 100
 101 echo "*** done"
 102 rm -f $seq.full
 103 status=0
 104 exit 0