tests/qemu-iotests/178

   1 #!/usr/bin/env bash
   2 #
   3 # qemu-img measure sub-command tests
   4 #
   5 # Copyright (C) 2017 Red Hat, Inc.
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 #
  20
  21 # creator
  22 owner=stefanha@redhat.com
  23
  24 seq=`basename $0`
  25 echo "QA output created by $seq"
  26
  27 status=1    # failure is the default!
  28
  29 _cleanup()
  30 {
  31     _cleanup_test_img
  32     _rm_test_img "$TEST_IMG.converted"
  33 }
  34 trap "_cleanup; exit \$status" 0 1 2 3 15
  35
  36 # get standard environment, filters and checks
  37 . ./common.rc
  38 . ./common.filter
  39 . ./common.pattern
  40
  41 _supported_fmt raw qcow2
  42 _supported_proto file
  43 _supported_os Linux
  44 _require_working_luks
  45
  46 echo "== Input validation =="
  47 echo
  48
  49 _make_test_img 1G
  50
  51 $QEMU_IMG measure # missing arguments
  52 $QEMU_IMG measure --size 2G "$TEST_IMG" # only one allowed
  53 $QEMU_IMG measure "$TEST_IMG" a # only one filename allowed
  54 $QEMU_IMG measure --object secret,id=sec0,data=MTIzNDU2,format=base64 # size or filename needed
  55 $QEMU_IMG measure --image-opts # missing filename
  56 $QEMU_IMG measure -f qcow2 # missing filename
  57 $QEMU_IMG measure -l snap1 # missing filename
  58 $QEMU_IMG measure -o , # invalid option list
  59 $QEMU_IMG measure -l snapshot.foo # invalid snapshot option
  60 $QEMU_IMG measure --output foo # invalid output format
  61 $QEMU_IMG measure --size -1 # invalid image size
  62 $QEMU_IMG measure -O foo "$TEST_IMG" # unknown image file format
  63
  64 make_test_img_with_fmt() {
  65     # Shadow global variables within this function
  66     local IMGFMT="$1"
  67     _make_test_img --no-opts "$2"
  68 }
  69
  70 qemu_io_with_fmt() {
  71     # Shadow global variables within this function
  72     local QEMU_IO_OPTIONS=$(echo "$QEMU_IO_OPTIONS" | sed "s/-f $IMGFMT/-f $1/")
  73     shift
  74     $QEMU_IO "$@"
  75 }
  76
  77 # The proof is in the pudding: converted image size cannot be larger than the
  78 # required size.
  79 #
  80 # Note: if a change to the image format code causes the file size to change,
  81 # then this test fails!  This is good because it's a reminder to check that the
  82 # required size is still at least as big as the actual converted file size.
  83 convert_and_show_size() {
  84     local fmt="$1"
  85     shift
  86     $QEMU_IMG convert -f "$fmt" -O "$IMGFMT" "$TEST_IMG" "$@" "$TEST_IMG.converted"
  87     stat -c "converted image file size in bytes: %s" "$TEST_IMG.converted"
  88 }
  89
  90 for ofmt in human json; do
  91     echo
  92     echo "== Size calculation for a new file ($ofmt) =="
  93     echo
  94
  95     # Try a few interesting sizes
  96     $QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 0
  97     $QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 2G
  98     $QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 64G
  99     $QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 256G
 100     $QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 1T
 101     $QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 2P
 102     $QEMU_IMG measure --output=$ofmt -O "$IMGFMT" --size 7E
 103
 104     # Always test the raw input files but also IMGFMT
 105     for fmt in $(echo -e "raw\n$IMGFMT\n" | sort -u); do
 106         echo
 107         echo "== Empty $fmt input image ($ofmt) =="
 108         echo
 109         make_test_img_with_fmt "$fmt" 0
 110         $QEMU_IMG measure --output=$ofmt -f "$fmt" -O "$IMGFMT" "$TEST_IMG"
 111         echo
 112         convert_and_show_size "$fmt"
 113
 114         echo
 115         echo "== $fmt input image with data ($ofmt) =="
 116         echo
 117         make_test_img_with_fmt "$fmt" 1G
 118         $QEMU_IMG measure --output=$ofmt -f "$fmt" -O "$IMGFMT" "$TEST_IMG"
 119         qemu_io_with_fmt "$fmt" -c "write 512 512" "$TEST_IMG" | _filter_qemu_io
 120         qemu_io_with_fmt "$fmt" -c "write 64K 64K" "$TEST_IMG" | _filter_qemu_io
 121         if [ "$fmt" = "qcow2" ]; then
 122             $QEMU_IMG snapshot -c snapshot1 "$TEST_IMG"
 123         fi
 124         qemu_io_with_fmt "$fmt" -c "write 128M 63K" "$TEST_IMG" | _filter_qemu_io
 125         $QEMU_IMG measure --output=$ofmt -f "$fmt" -O "$IMGFMT" "$TEST_IMG"
 126         echo
 127         convert_and_show_size "$fmt"
 128
 129         if [ "$fmt" = "qcow2" ]; then
 130             echo
 131             echo "== $fmt input image with internal snapshot ($ofmt) =="
 132             echo
 133             $QEMU_IMG measure --output=$ofmt -f "$fmt" -l snapshot1 \
 134                               -O "$IMGFMT" "$TEST_IMG"
 135             echo
 136             convert_and_show_size "$fmt" -l snapshot1
 137         fi
 138
 139         if [ "$IMGFMT" = "qcow2" ]; then
 140             echo
 141             echo "== $fmt input image and a backing file ($ofmt) =="
 142             echo
 143             # The backing file doesn't need to exist :)
 144             $QEMU_IMG measure --output=$ofmt -o backing_file=x \
 145                               -f "$fmt" -O "$IMGFMT" "$TEST_IMG"
 146
 147             echo
 148             echo "== $fmt input image and LUKS encryption =="
 149             echo
 150             $QEMU_IMG measure --output=$ofmt \
 151                               --object secret,id=sec0,data=base \
 152                               -o encrypt.format=luks,encrypt.key-secret=sec0,encrypt.iter-time=10 \
 153                               -f "$fmt" -O "$IMGFMT" "$TEST_IMG"
 154         fi
 155
 156         echo
 157         echo "== $fmt input image and preallocation ($ofmt) =="
 158         echo
 159         $QEMU_IMG measure --output=$ofmt -o preallocation=full \
 160                           -f "$fmt" -O "$IMGFMT" "$TEST_IMG"
 161         echo
 162         convert_and_show_size "$fmt" -o preallocation=full
 163
 164         echo
 165         echo "== Fully-allocated $fmt input image ($ofmt) =="
 166         echo
 167         make_test_img_with_fmt "$fmt" 8M
 168         qemu_io_with_fmt "$fmt" -c "write 0 8M" "$TEST_IMG" | _filter_qemu_io
 169         $QEMU_IMG measure --output=$ofmt -f "$fmt" -O "$IMGFMT" "$TEST_IMG"
 170         echo
 171         convert_and_show_size "$fmt"
 172     done
 173 done
 174
 175 # success, all done
 176 echo "*** done"
 177 rm -f $seq.full
 178 status=0