tests/qemu-iotests/065

   1 #!/usr/bin/env python3
   2 # group: rw quick
   3 #
   4 # Test for additional information emitted by qemu-img info on qcow2
   5 # images
   6 #
   7 # Copyright (C) 2013 Red Hat, Inc.
   8 #
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 2 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 #
  22
  23 import os
  24 import re
  25 import json
  26 import iotests
  27 from iotests import qemu_img, qemu_img_pipe
  28 import unittest
  29
  30 test_img = os.path.join(iotests.test_dir, 'test.img')
  31
  32 class TestImageInfoSpecific(iotests.QMPTestCase):
  33     '''Abstract base class for ImageInfoSpecific tests'''
  34
  35     def setUp(self):
  36         if self.img_options is None:
  37             self.skipTest('Skipping abstract test class')
  38         qemu_img('create', '-f', iotests.imgfmt, '-o', self.img_options,
  39                  test_img, '128K')
  40
  41     def tearDown(self):
  42         os.remove(test_img)
  43
  44 class TestQemuImgInfo(TestImageInfoSpecific):
  45     '''Abstract base class for qemu-img info tests'''
  46
  47     img_options = None
  48     json_compare = None
  49     human_compare = None
  50
  51     def test_json(self):
  52         data = json.loads(qemu_img_pipe('info', '--output=json', test_img))
  53         data = data['format-specific']
  54         self.assertEqual(data['type'], iotests.imgfmt)
  55         self.assertEqual(data['data'], self.json_compare)
  56
  57     def test_human(self):
  58         data = qemu_img_pipe('info', '--output=human', test_img).split('\n')
  59         data = data[(data.index('Format specific information:') + 1)
  60                     :data.index('')]
  61         for field in data:
  62             self.assertTrue(re.match('^ {4}[^ ]', field) is not None)
  63         data = [line.strip() for line in data]
  64         self.assertEqual(data, self.human_compare)
  65
  66 class TestQMP(TestImageInfoSpecific):
  67     '''Abstract base class for qemu QMP tests'''
  68
  69     img_options = None
  70     qemu_options = ''
  71     TestImageInfoSpecific = TestImageInfoSpecific
  72
  73     def setUp(self):
  74         self.TestImageInfoSpecific.setUp(self)
  75         self.vm = iotests.VM().add_drive(test_img, self.qemu_options)
  76         self.vm.launch()
  77
  78     def tearDown(self):
  79         self.vm.shutdown()
  80         self.TestImageInfoSpecific.tearDown(self)
  81
  82     def test_qmp(self):
  83         result = self.vm.qmp('query-block')['return']
  84         drive = next(drive for drive in result if drive['device'] == 'drive0')
  85         data = drive['inserted']['image']['format-specific']
  86         self.assertEqual(data['type'], iotests.imgfmt)
  87         self.assertEqual(data['data'], self.compare)
  88
  89 class TestQCow2(TestQemuImgInfo):
  90     '''Testing a qcow2 version 2 image'''
  91     img_options = 'compat=0.10'
  92     json_compare = { 'compat': '0.10', 'refcount-bits': 16,
  93                      'compression-type': 'zlib' }
  94     human_compare = [ 'compat: 0.10', 'compression type: zlib',
  95                       'refcount bits: 16' ]
  96
  97 class TestQCow3NotLazy(TestQemuImgInfo):
  98     '''Testing a qcow2 version 3 image with lazy refcounts disabled'''
  99     img_options = 'compat=1.1,lazy_refcounts=off'
 100     json_compare = { 'compat': '1.1', 'lazy-refcounts': False,
 101                      'refcount-bits': 16, 'corrupt': False,
 102                      'compression-type': 'zlib', 'extended-l2': False }
 103     human_compare = [ 'compat: 1.1', 'compression type: zlib',
 104                       'lazy refcounts: false', 'refcount bits: 16',
 105                       'corrupt: false', 'extended l2: false' ]
 106
 107 class TestQCow3Lazy(TestQemuImgInfo):
 108     '''Testing a qcow2 version 3 image with lazy refcounts enabled'''
 109     img_options = 'compat=1.1,lazy_refcounts=on'
 110     json_compare = { 'compat': '1.1', 'lazy-refcounts': True,
 111                      'refcount-bits': 16, 'corrupt': False,
 112                      'compression-type': 'zlib', 'extended-l2': False }
 113     human_compare = [ 'compat: 1.1', 'compression type: zlib',
 114                       'lazy refcounts: true', 'refcount bits: 16',
 115                       'corrupt: false', 'extended l2: false' ]
 116
 117 class TestQCow3NotLazyQMP(TestQMP):
 118     '''Testing a qcow2 version 3 image with lazy refcounts disabled, opening
 119        with lazy refcounts enabled'''
 120     img_options = 'compat=1.1,lazy_refcounts=off'
 121     qemu_options = 'lazy-refcounts=on'
 122     compare = { 'compat': '1.1', 'lazy-refcounts': False,
 123                 'refcount-bits': 16, 'corrupt': False,
 124                 'compression-type': 'zlib', 'extended-l2': False }
 125
 126
 127 class TestQCow3LazyQMP(TestQMP):
 128     '''Testing a qcow2 version 3 image with lazy refcounts enabled, opening
 129        with lazy refcounts disabled'''
 130     img_options = 'compat=1.1,lazy_refcounts=on'
 131     qemu_options = 'lazy-refcounts=off'
 132     compare = { 'compat': '1.1', 'lazy-refcounts': True,
 133                 'refcount-bits': 16, 'corrupt': False,
 134                 'compression-type': 'zlib', 'extended-l2': False }
 135
 136 TestImageInfoSpecific = None
 137 TestQemuImgInfo = None
 138 TestQMP = None
 139
 140 if __name__ == '__main__':
 141     iotests.main(supported_fmts=['qcow2'],
 142                  supported_protocols=['file'])