tests/qemu-iotests/023

   1 #!/bin/bash
   2 #
   3 # qcow2 pattern test with various cluster sizes
   4 #
   5 # Copyright (C) 2009 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=kwolf@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 }
  33 trap "_cleanup; exit \$status" 0 1 2 3 15
  34
  35 # get standard environment, filters and checks
  36 . ./common.rc
  37 . ./common.filter
  38 . ./common.pattern
  39
  40 # much of this could be generic for any format supporting compression.
  41 _supported_fmt qcow qcow2
  42 _supported_proto file
  43 _supported_os Linux
  44
  45 TEST_OFFSETS="0 4294967296"
  46 TEST_OPS="writev read write readv"
  47
  48 # Can't use 512 byte clusters, the tests use cluster halves
  49 CLUSTER_SIZES="1024 4096 16384 65536"
  50
  51 for CLUSTER_SIZE in $CLUSTER_SIZES; do
  52
  53     echo "Creating new image; cluster size: $CLUSTER_SIZE"
  54     echo
  55
  56     _make_test_img 8G
  57
  58     echo "Testing empty image"
  59     echo
  60
  61     for offset in $TEST_OFFSETS; do
  62         echo "At offset $offset:"
  63         for op in $TEST_OPS; do
  64             io_test $op $offset $CLUSTER_SIZE 3
  65         done
  66         _check_test_img
  67     done
  68
  69     echo "Compressing image"
  70     echo
  71
  72     mv "$TEST_IMG" "$TEST_IMG.orig"
  73     $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -c "$TEST_IMG.orig" "$TEST_IMG"
  74
  75     echo "Testing compressed image"
  76     echo
  77
  78     for offset in $TEST_OFFSETS; do
  79         echo "With offset $offset:"
  80         for op in read readv; do
  81             io_test $op $offset $CLUSTER_SIZE 3
  82         done
  83         _check_test_img
  84     done
  85
  86     echo "Testing compressed image with odd offsets"
  87     echo
  88     for offset in $TEST_OFFSETS; do
  89         # Some odd offset (1 sector), so tests will write to areas occupied partly
  90         # by old (compressed) data and empty clusters
  91         offset=$((offset + 512))
  92         echo "With offset $offset:"
  93         for op in $TEST_OPS; do
  94             io_test $op $offset $CLUSTER_SIZE 3
  95         done
  96         _check_test_img
  97     done
  98
  99     echo "Creating another new image"
 100     echo
 101
 102     _make_test_img 8G
 103
 104     echo "More complex patterns"
 105     echo
 106
 107     for offset in $TEST_OFFSETS; do
 108         echo test2: With offset $offset
 109         io_test2 $offset $CLUSTER_SIZE 4
 110         _check_test_img
 111     done
 112
 113 done
 114
 115 # success, all done
 116 echo "*** done"
 117 rm -f $seq.full
 118 status=0