tests/qemu-iotests/031

   1 #!/usr/bin/env bash
   2 # group: rw auto quick
   3 #
   4 # Test that all qcow2 header extensions survive a header rewrite
   5 #
   6 # Copyright (C) 2011 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=kwolf@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 }
  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 # This tests qcow2-specific low-level functionality
  42 _supported_fmt qcow2
  43 _supported_proto file fuse
  44 # We want to test compat=0.10, which does not support external data
  45 # files or refcount widths other than 16 or compression type
  46 _unsupported_imgopts data_file compression_type \
  47     'refcount_bits=\([^1]\|.\([^6]\|$\)\)'
  48
  49 CLUSTER_SIZE=65536
  50
  51 # qcow2.py output depends on the exact options used, so override the command
  52 # line here as an exception
  53 for compat in "compat=0.10" "compat=1.1"; do
  54
  55     echo
  56     echo ===== Testing with -o $compat =====
  57     echo
  58     echo === Create image with unknown header extension ===
  59     echo
  60     _make_test_img -o $compat 64M
  61     $PYTHON qcow2.py "$TEST_IMG" add-header-ext 0x12345678 "This is a test header extension"
  62     _qcow2_dump_header
  63     _check_test_img
  64
  65     echo
  66     echo === Rewrite header with no backing file ===
  67     echo
  68     $QEMU_IMG rebase -u -b "" "$TEST_IMG"
  69     _qcow2_dump_header
  70     _check_test_img
  71
  72     echo
  73     echo === Add a backing file and format ===
  74     echo
  75     $QEMU_IMG rebase -u -b "/some/backing/file/path" -F host_device "$TEST_IMG"
  76     _qcow2_dump_header
  77 done
  78
  79 # success, all done
  80 echo "*** done"
  81 rm -f $seq.full
  82 status=0