xref: /qemu/tests/qemu-iotests/065 (revision bfa3ab61) 
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
22import os
23import re
24import json
25import iotests
26from iotests import qemu_img, qemu_img_pipe
27import unittest
28
29test_img = os.path.join(iotests.test_dir, 'test.img')
30
31class 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
43class 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
65class 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
88class 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
94class 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
102class 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
110class 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
119class 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
127TestImageInfoSpecific = None
128TestQemuImgInfo = None
129TestQMP = None
130
131if __name__ == '__main__':
132    iotests.main(supported_fmts=['qcow2'])
133