tests/qemu-iotests/063

   1 #!/bin/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 $seq"
  27
  28 here=`pwd`
  29 status=1        # failure is the default!
  30
  31 _cleanup()
  32 {
  33         _cleanup_test_img
  34         rm -f "$TEST_IMG.orig" "$TEST_IMG.raw1" "$TEST_IMG.raw2"
  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 . ./common.pattern
  42
  43 _supported_fmt qcow qcow2 vmdk qed raw
  44 _supported_proto file
  45 _supported_os Linux
  46 _unsupported_imgopts "subformat=monolithicFlat" \
  47                      "subformat=twoGbMaxExtentFlat" \
  48                      "subformat=twoGbMaxExtentSparse"
  49
  50 _make_test_img 4M
  51
  52 echo "== Testing conversion with -n fails with no target file =="
  53 # check .orig file does not exist
  54 rm -f "$TEST_IMG.orig"
  55 if $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -n "$TEST_IMG" "$TEST_IMG.orig" >/dev/null 2>&1; then
  56     exit 1
  57 fi
  58
  59 echo "== Testing conversion with -n succeeds with a target file =="
  60 rm -f "$TEST_IMG.orig"
  61 cp "$TEST_IMG" "$TEST_IMG.orig"
  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" "$TEST_IMG" ; then
  82     exit 1
  83 fi
  84 _check_test_img
  85
  86 echo "== Testing conversion to a smaller file fails =="
  87 rm -f "$TEST_IMG.orig"
  88 mv "$TEST_IMG" "$TEST_IMG.orig"
  89 _make_test_img 2M
  90 if $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -n "$TEST_IMG.orig" "$TEST_IMG" >/dev/null 2>&1; then
  91     exit 1
  92 fi
  93
  94 echo "*** done"
  95 rm -f $seq.full
  96 status=0
  97 exit 0