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 tmp=/tmp/$$
  30 status=1        # failure is the default!
  31
  32 _cleanup()
  33 {
  34         _cleanup_test_img
  35         rm -f "$TEST_IMG.orig" "$TEST_IMG.raw" "$TEST_IMG.raw2"
  36 }
  37 trap "_cleanup; exit \$status" 0 1 2 3 15
  38
  39 # get standard environment, filters and checks
  40 . ./common.rc
  41 . ./common.filter
  42 . ./common.pattern
  43
  44 _supported_fmt qcow qcow2 vmdk qed raw
  45 _supported_proto generic
  46 _supported_os Linux
  47
  48 _make_test_img 4M
  49
  50 echo "== Testing conversion with -n fails with no target file =="
  51 # check .orig file does not exist
  52 rm -f "$TEST_IMG.orig"
  53 if $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -n "$TEST_IMG" "$TEST_IMG.orig" >/dev/null 2>&1; then
  54     exit 1
  55 fi
  56
  57 echo "== Testing conversion with -n succeeds with a target file =="
  58 rm -f "$TEST_IMG.orig"
  59 cp "$TEST_IMG" "$TEST_IMG.orig"
  60 if ! $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -n "$TEST_IMG" "$TEST_IMG.orig" ; then
  61     exit 1
  62 fi
  63
  64 echo "== Testing conversion to raw is the same after conversion with -n =="
  65 # compare the raw files
  66 if ! $QEMU_IMG convert -f $IMGFMT -O raw "$TEST_IMG" "$TEST_IMG.raw1" ; then
  67     exit 1
  68 fi
  69
  70 if ! $QEMU_IMG convert -f $IMGFMT -O raw "$TEST_IMG.orig" "$TEST_IMG.raw2" ; then
  71     exit 1
  72 fi
  73
  74 if ! cmp "$TEST_IMG.raw1" "$TEST_IMG.raw2" ; then
  75     exit 1
  76 fi
  77
  78 echo "== Testing conversion back to original format =="
  79 if ! $QEMU_IMG convert -f raw -O $IMGFMT -n "$TEST_IMG.raw2" "$TEST_IMG" ; then
  80     exit 1
  81 fi
  82 _check_test_img
  83
  84 echo "== Testing conversion to a smaller file fails =="
  85 rm -f "$TEST_IMG.orig"
  86 mv "$TEST_IMG" "$TEST_IMG.orig"
  87 _make_test_img 2M
  88 if $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -n "$TEST_IMG.orig" "$TEST_IMG" >/dev/null 2>&1; then
  89     exit 1
  90 fi
  91
  92 rm -f "$TEST_IMG.orig" "$TEST_IMG.raw" "$TEST_IMG.raw2"
  93
  94 echo "*** done"
  95 rm -f $seq.full
  96 status=0
  97 exit 0