tests/qemu-iotests/065

   1 #!/usr/bin/env python
   2 #
   3 # Test for additional information emitted by qemu-img info on qcow2
   4 # images
   5 #
   6 # Copyright (C) 2013 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 import os
  23 import re
  24 import json
  25 import iotests
  26 from iotests import qemu_img, qemu_img_pipe
  27 import unittest
  28
  29 test_img = os.path.join(iotests.test_dir, 'test.img')
  30
  31 class TestImageInfoSpecific(iotests.QMPTestCase):
  32     '''Abstract base class for ImageInfoSpecific tests'''
  33
  34     def setUp(self):
  35         if self.img_options is None:
  36             self.skipTest('Skipping abstract test class')
  37         qemu_img('create', '-f', iotests.imgfmt, '-o', self.img_options,
  38                  test_img, '128K')
  39
  40     def tearDown(self):
  41         os.remove(test_img)
  42
  43 class TestQemuImgInfo(TestImageInfoSpecific):
  44     '''Abstract base class for qemu-img info tests'''
  45
  46     img_options = None
  47     json_compare = None
  48     human_compare = None
  49
  50     def test_json(self):
  51         data = json.loads(qemu_img_pipe('info', '--output=json', test_img))
  52         data = data['format-specific']
  53         self.assertEqual(data['type'], iotests.imgfmt)
  54         self.assertEqual(data['data'], self.json_compare)
  55
  56     def test_human(self):
  57         data = qemu_img_pipe('info', '--output=human', test_img).split('\n')
  58         data = data[(data.index('Format specific information:') + 1)
  59                     :data.index('')]
  60         for field in data:
  61             self.assertTrue(re.match('^ {4}[^ ]', field) is not None)
  62         data = map(lambda line: line.strip(), data)
  63         self.assertEqual(data, self.human_compare)
  64
  65 class TestQMP(TestImageInfoSpecific):
  66     '''Abstract base class for qemu QMP tests'''
  67
  68     img_options = None
  69     qemu_options = ''
  70     TestImageInfoSpecific = TestImageInfoSpecific
  71
  72     def setUp(self):
  73         self.TestImageInfoSpecific.setUp(self)
  74         self.vm = iotests.VM().add_drive(test_img, self.qemu_options)
  75         self.vm.launch()
  76
  77     def tearDown(self):
  78         self.vm.shutdown()
  79         self.TestImageInfoSpecific.tearDown(self)
  80
  81     def test_qmp(self):
  82         result = self.vm.qmp('query-block')['return']
  83         drive = filter(lambda drive: drive['device'] == 'drive0', result)[0]
  84         data = drive['inserted']['image']['format-specific']
  85         self.assertEqual(data['type'], iotests.imgfmt)
  86         self.assertEqual(data['data'], self.compare)
  87
  88 class TestQCow2(TestQemuImgInfo):
  89     '''Testing a qcow2 version 2 image'''
  90     img_options = 'compat=0.10'
  91     json_compare = { 'compat': '0.10', 'refcount-bits': 16 }
  92     human_compare = [ 'compat: 0.10', 'refcount bits: 16' ]
  93
  94 class TestQCow3NotLazy(TestQemuImgInfo):
  95     '''Testing a qcow2 version 3 image with lazy refcounts disabled'''
  96     img_options = 'compat=1.1,lazy_refcounts=off'
  97     json_compare = { 'compat': '1.1', 'lazy-refcounts': False,
  98                      'refcount-bits': 16, 'corrupt': False }
  99     human_compare = [ 'compat: 1.1', 'lazy refcounts: false',
 100                       'refcount bits: 16', 'corrupt: false' ]
 101
 102 class TestQCow3Lazy(TestQemuImgInfo):
 103     '''Testing a qcow2 version 3 image with lazy refcounts enabled'''
 104     img_options = 'compat=1.1,lazy_refcounts=on'
 105     json_compare = { 'compat': '1.1', 'lazy-refcounts': True,
 106                      'refcount-bits': 16, 'corrupt': False }
 107     human_compare = [ 'compat: 1.1', 'lazy refcounts: true',
 108                       'refcount bits: 16', 'corrupt: false' ]
 109
 110 class TestQCow3NotLazyQMP(TestQMP):
 111     '''Testing a qcow2 version 3 image with lazy refcounts disabled, opening
 112        with lazy refcounts enabled'''
 113     img_options = 'compat=1.1,lazy_refcounts=off'
 114     qemu_options = 'lazy-refcounts=on'
 115     compare = { 'compat': '1.1', 'lazy-refcounts': False,
 116                 'refcount-bits': 16, 'corrupt': False }
 117
 118
 119 class TestQCow3LazyQMP(TestQMP):
 120     '''Testing a qcow2 version 3 image with lazy refcounts enabled, opening
 121        with lazy refcounts disabled'''
 122     img_options = 'compat=1.1,lazy_refcounts=on'
 123     qemu_options = 'lazy-refcounts=off'
 124     compare = { 'compat': '1.1', 'lazy-refcounts': True,
 125                 'refcount-bits': 16, 'corrupt': False }
 126
 127 TestImageInfoSpecific = None
 128 TestQemuImgInfo = None
 129 TestQMP = None
 130
 131 if __name__ == '__main__':
 132     iotests.main(supported_fmts=['qcow2'])