xref: /qemu/tests/qemu-iotests/065 (revision a976a99a) 
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
23import os
24import re
25import json
26import iotests
27from iotests import qemu_img, qemu_img_info, supports_qcow2_zstd_compression
28import unittest
29
30test_img = os.path.join(iotests.test_dir, 'test.img')
31
32class 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
44class 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 = qemu_img_info(test_img)['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('info', '--output=human', test_img).stdout.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 = [line.strip() for line in 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 = next(drive for drive in result if drive['device'] == 'drive0')
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,compression_type=zlib'
91    json_compare = { 'compat': '0.10', 'refcount-bits': 16,
92                     'compression-type': 'zlib' }
93    human_compare = [ 'compat: 0.10', 'compression type: zlib',
94                      'refcount bits: 16' ]
95
96class TestQCow3NotLazy(TestQemuImgInfo):
97    '''Testing a qcow2 version 3 image with lazy refcounts disabled'''
98    if supports_qcow2_zstd_compression():
99        compression_type = 'zstd'
100    else:
101        compression_type = 'zlib'
102
103    img_options = 'compat=1.1,lazy_refcounts=off'
104    img_options += f',compression_type={compression_type}'
105    json_compare = { 'compat': '1.1', 'lazy-refcounts': False,
106                     'refcount-bits': 16, 'corrupt': False,
107                     'compression-type': compression_type, 'extended-l2': False }
108    human_compare = [ 'compat: 1.1', f'compression type: {compression_type}',
109                      'lazy refcounts: false', 'refcount bits: 16',
110                      'corrupt: false', 'extended l2: false' ]
111
112class TestQCow3Lazy(TestQemuImgInfo):
113    '''Testing a qcow2 version 3 image with lazy refcounts enabled'''
114    img_options = 'compat=1.1,lazy_refcounts=on,compression_type=zlib'
115    json_compare = { 'compat': '1.1', 'lazy-refcounts': True,
116                     'refcount-bits': 16, 'corrupt': False,
117                     'compression-type': 'zlib', 'extended-l2': False }
118    human_compare = [ 'compat: 1.1', 'compression type: zlib',
119                      'lazy refcounts: true', 'refcount bits: 16',
120                      'corrupt: false', 'extended l2: false' ]
121
122class TestQCow3NotLazyQMP(TestQMP):
123    '''Testing a qcow2 version 3 image with lazy refcounts disabled, opening
124       with lazy refcounts enabled'''
125    img_options = 'compat=1.1,lazy_refcounts=off,compression_type=zlib'
126    qemu_options = 'lazy-refcounts=on'
127    compare = { 'compat': '1.1', 'lazy-refcounts': False,
128                'refcount-bits': 16, 'corrupt': False,
129                'compression-type': 'zlib', 'extended-l2': False }
130
131
132class TestQCow3LazyQMP(TestQMP):
133    '''Testing a qcow2 version 3 image with lazy refcounts enabled, opening
134       with lazy refcounts disabled'''
135    if supports_qcow2_zstd_compression():
136        compression_type = 'zstd'
137    else:
138        compression_type = 'zlib'
139
140    img_options = 'compat=1.1,lazy_refcounts=on'
141    img_options += f',compression_type={compression_type}'
142    qemu_options = 'lazy-refcounts=off'
143    compare = { 'compat': '1.1', 'lazy-refcounts': True,
144                'refcount-bits': 16, 'corrupt': False,
145                'compression-type': compression_type, 'extended-l2': False }
146
147TestImageInfoSpecific = None
148TestQemuImgInfo = None
149TestQMP = None
150
151if __name__ == '__main__':
152    iotests.main(supported_fmts=['qcow2'],
153                 supported_protocols=['file'],
154                 unsupported_imgopts=['refcount_bits'])
155