1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
from mock import patch
import os
from StringIO import StringIO
from unittest import TestCase
from update_lxc_cache import (
INDEX,
INDEX_PATH,
INSTALL_SCRIPT,
LxcCache,
main,
parse_args,
PUT_SCRIPT,
System
)
from utility import temp_dir
INDEX_DATA = """\
ubuntu;trusty;arm64;default;201501;/images/ubuntu/trusty/arm64/default/201501/
ubuntu;trusty;armhf;default;201502;/images/ubuntu/trusty/armhf/default/201502/
ubuntu;trusty;i386;default;201503;/images/ubuntu/trusty/i386/default/201503/
ubuntu;trusty;ppc64el;default;20154;/images/ubuntu/trusty/ppc64el/default/20154/
"""
def make_systems(data=INDEX_DATA):
systems = {}
for line in data.splitlines():
system = System(*line.split(';'))
key = (system.dist, system.release, system.arch, system.variant)
systems[key] = system
return systems
def make_local_cache(workspace):
meta_dir = os.path.join(workspace, INDEX_PATH)
os.makedirs(meta_dir)
index_path = os.path.join(meta_dir, INDEX)
with open(index_path, 'w') as f:
f.write(INDEX_DATA)
return index_path
class FakeResponse(StringIO):
def __init__(self, code, data, *args, **kwargs):
StringIO.__init__(self, *args, **kwargs)
self.code = code
self.write(data)
self.seek(0)
def getcode(self):
return self.code
class UpdateLxcCacheTestCase(TestCase):
def test_parse_args(self):
args = parse_args(
['-d', '-v', 'user@host', 'trusty', 'ppc64el', './workspace'])
self.assertEqual('./workspace', args.workspace)
self.assertEqual('trusty', args.release)
self.assertEqual('ppc64el', args.arch)
self.assertEqual('ubuntu', args.dist)
self.assertEqual('default', args.variant)
self.assertTrue(args.verbose)
self.assertTrue(args.dry_run)
@patch('update_lxc_cache.LxcCache.save_index', autospec=True)
@patch('update_lxc_cache.LxcCache.put_lxc_data', autospec=True)
@patch('update_lxc_cache.LxcCache.get_lxc_data', autospec=True,
return_value=('rootfs_path', 'meta_path'))
@patch('update_lxc_cache.LxcCache.get_updates', autospec=True,
return_value=('system', 'data'))
def test_main(self, gu_mock, gl_mock, pl_mock, si_mock):
lxc_cache = LxcCache('./workspace')
rc = main(
['-d', '-v', 'user@host', 'trusty', 'ppc64el', './workspace'])
self.assertEqual(0, rc)
lxc_cache = gu_mock.call_args[0][0]
self.assertIsInstance(lxc_cache, LxcCache)
self.assertEqual(os.path.abspath('./workspace'), lxc_cache.workspace)
self.assertTrue(lxc_cache.verbose)
self.assertTrue(lxc_cache.dry_run)
gu_mock.assert_called_with(
lxc_cache, 'ubuntu', 'trusty', 'ppc64el', 'default')
gl_mock.assert_called_with(lxc_cache, 'system')
pl_mock.assert_called_with(
lxc_cache, 'user@host', 'system', 'rootfs_path', 'meta_path')
si_mock.assert_called_with(lxc_cache, 'data')
class LxcCacheTestCase(TestCase):
def test_init(self):
lxc_cache = LxcCache('./workspace', True, True)
self.assertEqual(os.path.abspath('./workspace'), lxc_cache.workspace)
self.assertTrue(lxc_cache.verbose)
self.assertTrue(lxc_cache.dry_run)
self.assertEqual({}, lxc_cache.systems)
def test_init_with_local_cache(self):
with temp_dir() as workspace:
make_local_cache(workspace)
lxc_cache = LxcCache(workspace)
expected_systems = make_systems()
self.assertEqual(expected_systems, lxc_cache.systems)
def test_init_systems_without_local_cache(self):
with temp_dir() as workspace:
lxc_cache = LxcCache(workspace)
systems, data = lxc_cache.init_systems('workspace')
self.assertEqual({}, systems)
self.assertIsNone(data)
def test_init_systems_with_local_cache(self):
with temp_dir() as workspace:
index_path = make_local_cache(workspace)
lxc_cache = LxcCache(workspace)
systems, data = lxc_cache.init_systems(index_path)
expected_systems = make_systems()
self.assertEqual(expected_systems, systems)
self.assertEqual(INDEX_DATA, data)
def test_init_systems_with_remote_location(self):
url = 'https://images.linuxcontainers.org/meta/1.0/index-system'
response = FakeResponse(200, INDEX_DATA)
with patch('urllib2.Request', autospec=True,
return_value='request') as r_mock:
with patch('urllib2.urlopen', autospec=True,
return_value=response) as ul_mock:
with temp_dir() as workspace:
lxc_cache = LxcCache(workspace)
systems, data = lxc_cache.init_systems(url)
expected_systems = make_systems()
self.assertEqual(expected_systems, systems)
self.assertEqual(INDEX_DATA, data)
ul_mock.assert_called_with('request')
r_mock.assert_called_with(url)
def test_get_updates_none(self):
systems = make_systems()
with temp_dir() as workspace:
make_local_cache(workspace)
lxc_cache = LxcCache(workspace)
with patch.object(lxc_cache, 'init_systems', autospec=True,
return_value=(systems, INDEX_DATA)) as is_mock:
new_system, new_data = lxc_cache.get_updates(
'ubuntu', 'trusty', 'ppc64el', 'default')
self.assertIsNone(new_system)
self.assertIsNone(new_data)
is_mock.assert_called_with(
'https://images.linuxcontainers.org/meta/1.0/index-system')
def test_get_updates_found(self):
remote_data = INDEX_DATA.replace(
'ppc64el;default;20154', 'ppc64el;default;20159')
remote_systems = make_systems(remote_data)
remote_updates = (remote_systems, remote_data)
with temp_dir() as workspace:
make_local_cache(workspace)
lxc_cache = LxcCache(workspace)
with patch.object(lxc_cache, 'init_systems', autospec=True,
return_value=remote_updates) as is_mock:
new_system, new_data = lxc_cache.get_updates(
'ubuntu', 'trusty', 'ppc64el', 'default')
key = ('ubuntu', 'trusty', 'ppc64el', 'default')
self.assertEqual(remote_systems[key], new_system)
self.assertEqual(remote_data, new_data)
is_mock.assert_called_with(
'https://images.linuxcontainers.org/meta/1.0/index-system')
def test_get_lxc_data(self):
systems = make_systems()
system = systems[('ubuntu', 'trusty', 'ppc64el', 'default')]
with temp_dir() as workspace:
make_local_cache(workspace)
lxc_cache = LxcCache(workspace)
with patch.object(lxc_cache, 'download', autospec=True) as d_mock:
rootfs_path, meta_path = lxc_cache.get_lxc_data(system)
image_path = os.path.join(
workspace, 'images/ubuntu/trusty/ppc64el/default/20154/')
self.assertTrue(os.path.isdir(image_path))
expected_rootfs_path = os.path.join(image_path, 'rootfs.tar.xz')
expected_meta_path = os.path.join(image_path, 'meta.tar.xz')
self.assertEqual(expected_rootfs_path, rootfs_path)
self.assertEqual(expected_meta_path, meta_path)
d_mock.assert_any_call(
'https://images.linuxcontainers.org'
'/images/ubuntu/trusty/ppc64el/default/20154/rootfs.tar.xz',
rootfs_path)
d_mock.assert_any_call(
'https://images.linuxcontainers.org'
'/images/ubuntu/trusty/ppc64el/default/20154/meta.tar.xz',
meta_path)
def test_put_lxc_data(self):
systems = make_systems()
system = systems[('ubuntu', 'trusty', 'ppc64el', 'default')]
with patch('subprocess.check_call', autospec=True) as cc_mock:
lxc_cache = LxcCache('workspace')
lxc_cache.put_lxc_data(
'user@host', system, '/rootfs_path', '/meta_path')
put_script = PUT_SCRIPT.format(
user_host='user@host', rootfs_path='/rootfs_path',
meta_path='/meta_path')
cc_mock.assert_any_call([put_script], shell=True)
cache_path = '/var/cache/lxc/download/ubuntu/trusty/ppc64el/default'
install_script = INSTALL_SCRIPT.format(
user_host='user@host', lxc_cache=cache_path,
rootfs='rootfs.tar.xz', meta='meta.tar.xz')
cc_mock.assert_any_call([install_script], shell=True)
def test_save_index(self):
with temp_dir() as workspace:
lxc_cache = LxcCache(workspace)
lxc_cache.save_index(INDEX_DATA)
index_path = os.path.join(workspace, 'meta/1.0/index-system')
self.assertTrue(os.path.isfile(index_path))
with open(index_path) as f:
data = f.read()
self.assertEqual(INDEX_DATA, data)
def test_download(self):
response = FakeResponse(200, 'rootfs.tar.xz')
with temp_dir() as workspace:
with patch('urllib2.Request', autospec=True,
return_value='request') as r_mock:
with patch('urllib2.urlopen', autospec=True,
return_value=response) as ul_mock:
lxc_cache = LxcCache(workspace)
file_path = os.path.join(workspace, 'rootfs.tar.xz')
lxc_cache.download('url', file_path)
self.assertTrue(os.path.isfile(file_path))
with open(file_path) as f:
data = f.read()
self.assertEqual('rootfs.tar.xz', data)
r_mock.assert_called_with('url')
ul_mock.assert_called_with('request')
|