LXR qemu/tests/qemu-iotests/023

   1#!/usr/bin/env bash
   2# group: rw
   3#
   4# qcow2 pattern test with various cluster sizes
   5#
   6# Copyright (C) 2009 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
  23owner=kwolf@redhat.com
  24
  25seq=`basename $0`
  26echo "QA output created by $seq"
  27
  28status=1        # failure is the default!
  29
  30_cleanup()
  31{
  32        _cleanup_test_img
  33}
  34trap "_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# much of this could be generic for any format supporting compression.
  42_supported_fmt qcow qcow2
  43_supported_proto file
  44_supported_os Linux
  45
  46TEST_OFFSETS="0 4294967296"
  47TEST_OPS="writev read write readv"
  48
  49# Can't use 512 byte clusters, the tests use cluster halves
  50CLUSTER_SIZES="1024 4096 16384 65536"
  51
  52for CLUSTER_SIZE in $CLUSTER_SIZES; do
  53
  54    echo "Creating new image; cluster size: $CLUSTER_SIZE"
  55    echo
  56
  57    _make_test_img 8G
  58
  59    echo "Testing empty image"
  60    echo
  61
  62    for offset in $TEST_OFFSETS; do
  63        echo "At offset $offset:"
  64        for op in $TEST_OPS; do
  65            io_test $op $offset $CLUSTER_SIZE 3
  66        done
  67        _check_test_img
  68    done
  69
  70    echo "Compressing image"
  71    echo
  72
  73    mv "$TEST_IMG" "$TEST_IMG.orig"
  74    $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -c "$TEST_IMG.orig" "$TEST_IMG"
  75
  76    echo "Testing compressed image"
  77    echo
  78
  79    for offset in $TEST_OFFSETS; do
  80        echo "With offset $offset:"
  81        for op in read readv; do
  82            io_test $op $offset $CLUSTER_SIZE 3
  83        done
  84        _check_test_img
  85    done
  86
  87    echo "Testing compressed image with odd offsets"
  88    echo
  89    for offset in $TEST_OFFSETS; do
  90        # Some odd offset (1 sector), so tests will write to areas occupied partly
  91        # by old (compressed) data and empty clusters
  92        offset=$((offset + 512))
  93        echo "With offset $offset:"
  94        for op in $TEST_OPS; do
  95            io_test $op $offset $CLUSTER_SIZE 3
  96        done
  97        _check_test_img
  98    done
  99
 100    echo "Creating another new image"
 101    echo
 102
 103    _make_test_img 8G
 104
 105    echo "More complex patterns"
 106    echo
 107
 108    for offset in $TEST_OFFSETS; do
 109        echo test2: With offset $offset
 110        io_test2 $offset $CLUSTER_SIZE 4
 111        _check_test_img
 112    done
 113
 114done
 115
 116# success, all done
 117echo "*** done"
 118rm -f $seq.full
 119status=0
 120