tests/qemu-iotests/178

   1 #!/usr/bin/env bash
   2 # group: img
   3 #
   4 # qemu-img measure sub-command tests
   5 #
   6 # Copyright (C) 2017 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=stefanha@redhat.com
  24
  25 seq=`basename $0`
  26 echo "QA output created by $seq"
  27
  28 status=1    # failure is the default!
  29
  30 _cleanup()
  31 {
  32     _cleanup_test_img
  33     _rm_test_img "$TEST_IMG.converted"
  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 raw qcow2
  43 _supported_proto file
  44 _supported_os Linux
  45 _require_working_luks
  46
  47 echo "== Input validation =="
  48 echo
  49
  50 _make_test_img 1G
  51
  52 $QEMU_IMG measure # missing arguments
  53 $QEMU_IMG measure --size 2G "$TEST_IMG" # only one allowed
  54 $QEMU_IMG measure "$TEST_IMG" a # only one filename allowed
  55 $QEMU_IMG measure --object secret,id=sec0,data=MTIzNDU2,format=base64 # size or filename needed
  56 $QEMU_IMG measure --image-opts # missing filename
  57 $QEMU_IMG measure -f qcow2 # missing filename
  58 $QEMU_IMG measure -l snap1 # missing filename
  59 $QEMU_IMG measure -o , # invalid option list
  60 $QEMU_IMG measure -l snapshot.foo=bar # invalid snapshot option
  61 $QEMU_IMG measure --output foo # invalid output format
  62 $QEMU_IMG measure --size -1 # invalid image size
  63 $QEMU_IMG measure -O foo "$TEST_IMG" # unknown image file format
  64
  65 make_test_img_with_fmt() {
  66     # Shadow global variables within this function
  67     local IMGFMT="$1"
  68     _make_test_img --no-opts "$2"
  69 }
  70
  71 qemu_io_with_fmt() {
  72     # Shadow global variables within this function
  73     local QEMU_IO_OPTIONS=$(echo "$QEMU_IO_OPTIONS" | sed "s/-f $IMGFMT/-f $1/")
  74     shift
  75     $QEMU_IO "$@"
  76 }
  77
  78 # The proof is in the pudding: converted image size cannot be larger than the
  79 # required size.
  80 #
  81 # Note: if a change to the image format code causes the file size to change,
  82 # then this test fails!  This is good because it's a reminder to check that the
  83 # required size is still at least as big as the actual converted file size.
  84 convert_and_show_size() {
  85     local fmt="$1"
  86     shift
  87     $QEMU_IMG convert -f "$fmt" -O "$IMGFMT" "$TEST_IMG" "$@" "$TEST_IMG.converted"
  88     stat -c "converted image file size in bytes: %s" "$TEST_IMG.converted"
  89 }
  90
  91 for ofmt in human json; do
  92     echo
  93     echo "== Size calculation for a new file ($ofmt) =="
  94     echo
  95
  96     # Try a few interesting sizes
  97     $QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 0
  98     $QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 2G
  99     $QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 64G
 100     $QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 256G
 101     $QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 1T
 102     $QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 2P
 103     $QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 7E
 104
 105     # Always test the raw input files but also IMGFMT
 106     for fmt in $(echo -e "raw\n$IMGFMT\n" | sort -u); do
 107         echo
 108         echo "== Empty $fmt input image ($ofmt) =="
 109         echo
 110         make_test_img_with_fmt "$fmt" 0
 111         $QEMU_IMG measure --output=$ofmt -f "$fmt" -O "$IMGFMT" "$TEST_IMG"
 112         echo
 113         convert_and_show_size "$fmt"
 114
 115         echo
 116         echo "== $fmt input image with data ($ofmt) =="
 117         echo
 118         make_test_img_with_fmt "$fmt" 1G
 119         $QEMU_IMG measure --output=$ofmt -f "$fmt" -O "$IMGFMT" "$TEST_IMG"
 120         qemu_io_with_fmt "$fmt" -c "write 512 512" "$TEST_IMG" | _filter_qemu_io
 121         qemu_io_with_fmt "$fmt" -c "write 64K 64K" "$TEST_IMG" | _filter_qemu_io
 122         if [ "$fmt" = "qcow2" ]; then
 123             $QEMU_IMG snapshot -c snapshot1 "$TEST_IMG"
 124         fi
 125         qemu_io_with_fmt "$fmt" -c "write 128M 63K" "$TEST_IMG" | _filter_qemu_io
 126         $QEMU_IMG measure --output=$ofmt -f "$fmt" -O "$IMGFMT" "$TEST_IMG"
 127         echo
 128         convert_and_show_size "$fmt"
 129
 130         if [ "$fmt" = "qcow2" ]; then
 131             echo
 132             echo "== $fmt input image with internal snapshot ($ofmt) =="
 133             echo
 134             $QEMU_IMG measure --output=$ofmt -f "$fmt" -l snapshot1 \
 135                               -O "$IMGFMT" "$TEST_IMG"
 136             echo
 137             convert_and_show_size "$fmt" -l snapshot1
 138         fi
 139
 140         if [ "$IMGFMT" = "qcow2" ]; then
 141             echo
 142             echo "== $fmt input image and a backing file ($ofmt) =="
 143             echo
 144             # The backing file doesn't need to exist :)
 145             $QEMU_IMG measure --output=$ofmt -o backing_file=x \
 146                               -f "$fmt" -O "$IMGFMT" "$TEST_IMG"
 147
 148             echo
 149             echo "== $fmt input image and LUKS encryption =="
 150             echo
 151             $QEMU_IMG measure --output=$ofmt \
 152                               --object secret,id=sec0,data=base \
 153                               -o encrypt.format=luks,encrypt.key-secret=sec0,encrypt.iter-time=10 \
 154                               -f "$fmt" -O "$IMGFMT" "$TEST_IMG"
 155         fi
 156
 157         echo
 158         echo "== $fmt input image and preallocation ($ofmt) =="
 159         echo
 160         $QEMU_IMG measure --output=$ofmt -o preallocation=full \
 161                           -f "$fmt" -O "$IMGFMT" "$TEST_IMG"
 162         echo
 163         convert_and_show_size "$fmt" -o preallocation=full
 164
 165         echo
 166         echo "== Fully-allocated $fmt input image ($ofmt) =="
 167         echo
 168         make_test_img_with_fmt "$fmt" 8M
 169         qemu_io_with_fmt "$fmt" -c "write 0 8M" "$TEST_IMG" | _filter_qemu_io
 170         $QEMU_IMG measure --output=$ofmt -f "$fmt" -O "$IMGFMT" "$TEST_IMG"
 171         echo
 172         convert_and_show_size "$fmt"
 173     done
 174 done
 175
 176 # success, all done
 177 echo "*** done"
 178 rm -f $seq.full
 179 status=0