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
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
|
# pylint: disable=C0301
# the mountinfo data lines are too long
import os
import stat
import yaml
from mocker import MockerTestCase
from unittest import TestCase
from tests.unittests import helpers
from cloudinit import importer
from cloudinit import util
class FakeSelinux(object):
def __init__(self, match_what):
self.match_what = match_what
self.restored = []
def matchpathcon(self, path, mode): # pylint: disable=W0613
if path == self.match_what:
return
else:
raise OSError("No match!")
def is_selinux_enabled(self):
return True
def restorecon(self, path, recursive): # pylint: disable=W0613
self.restored.append(path)
class TestGetCfgOptionListOrStr(TestCase):
def test_not_found_no_default(self):
"""None is returned if key is not found and no default given."""
config = {}
result = util.get_cfg_option_list(config, "key")
self.assertEqual(None, result)
def test_not_found_with_default(self):
"""Default is returned if key is not found."""
config = {}
result = util.get_cfg_option_list(config, "key", default=["DEFAULT"])
self.assertEqual(["DEFAULT"], result)
def test_found_with_default(self):
"""Default is not returned if key is found."""
config = {"key": ["value1"]}
result = util.get_cfg_option_list(config, "key", default=["DEFAULT"])
self.assertEqual(["value1"], result)
def test_found_convert_to_list(self):
"""Single string is converted to one element list."""
config = {"key": "value1"}
result = util.get_cfg_option_list(config, "key")
self.assertEqual(["value1"], result)
def test_value_is_none(self):
"""If value is None empty list is returned."""
config = {"key": None}
result = util.get_cfg_option_list(config, "key")
self.assertEqual([], result)
class TestWriteFile(MockerTestCase):
def setUp(self):
super(TestWriteFile, self).setUp()
self.tmp = self.makeDir(prefix="unittest_")
def test_basic_usage(self):
"""Verify basic usage with default args."""
path = os.path.join(self.tmp, "NewFile.txt")
contents = "Hey there"
util.write_file(path, contents)
self.assertTrue(os.path.exists(path))
self.assertTrue(os.path.isfile(path))
with open(path) as f:
create_contents = f.read()
self.assertEqual(contents, create_contents)
file_stat = os.stat(path)
self.assertEqual(0644, stat.S_IMODE(file_stat.st_mode))
def test_dir_is_created_if_required(self):
"""Verifiy that directories are created is required."""
dirname = os.path.join(self.tmp, "subdir")
path = os.path.join(dirname, "NewFile.txt")
contents = "Hey there"
util.write_file(path, contents)
self.assertTrue(os.path.isdir(dirname))
self.assertTrue(os.path.isfile(path))
def test_custom_mode(self):
"""Verify custom mode works properly."""
path = os.path.join(self.tmp, "NewFile.txt")
contents = "Hey there"
util.write_file(path, contents, mode=0666)
self.assertTrue(os.path.exists(path))
self.assertTrue(os.path.isfile(path))
file_stat = os.stat(path)
self.assertEqual(0666, stat.S_IMODE(file_stat.st_mode))
def test_custom_omode(self):
"""Verify custom omode works properly."""
path = os.path.join(self.tmp, "NewFile.txt")
contents = "Hey there"
# Create file first with basic content
with open(path, "wb") as f:
f.write("LINE1\n")
util.write_file(path, contents, omode="a")
self.assertTrue(os.path.exists(path))
self.assertTrue(os.path.isfile(path))
with open(path) as f:
create_contents = f.read()
self.assertEqual("LINE1\nHey there", create_contents)
def test_restorecon_if_possible_is_called(self):
"""Make sure the selinux guard is called correctly."""
import_mock = self.mocker.replace(importer.import_module,
passthrough=False)
import_mock('selinux')
fake_se = FakeSelinux('/etc/hosts')
self.mocker.result(fake_se)
self.mocker.replay()
with util.SeLinuxGuard("/etc/hosts") as is_on:
self.assertTrue(is_on)
self.assertEqual(1, len(fake_se.restored))
self.assertEqual('/etc/hosts', fake_se.restored[0])
class TestDeleteDirContents(MockerTestCase):
def setUp(self):
super(TestDeleteDirContents, self).setUp()
self.tmp = self.makeDir(prefix="unittest_")
def assertDirEmpty(self, dirname):
self.assertEqual([], os.listdir(dirname))
def test_does_not_delete_dir(self):
"""Ensure directory itself is not deleted."""
util.delete_dir_contents(self.tmp)
self.assertTrue(os.path.isdir(self.tmp))
self.assertDirEmpty(self.tmp)
def test_deletes_files(self):
"""Single file should be deleted."""
with open(os.path.join(self.tmp, "new_file.txt"), "wb") as f:
f.write("DELETE ME")
util.delete_dir_contents(self.tmp)
self.assertDirEmpty(self.tmp)
def test_deletes_empty_dirs(self):
"""Empty directories should be deleted."""
os.mkdir(os.path.join(self.tmp, "new_dir"))
util.delete_dir_contents(self.tmp)
self.assertDirEmpty(self.tmp)
def test_deletes_nested_dirs(self):
"""Nested directories should be deleted."""
os.mkdir(os.path.join(self.tmp, "new_dir"))
os.mkdir(os.path.join(self.tmp, "new_dir", "new_subdir"))
util.delete_dir_contents(self.tmp)
self.assertDirEmpty(self.tmp)
def test_deletes_non_empty_dirs(self):
"""Non-empty directories should be deleted."""
os.mkdir(os.path.join(self.tmp, "new_dir"))
f_name = os.path.join(self.tmp, "new_dir", "new_file.txt")
with open(f_name, "wb") as f:
f.write("DELETE ME")
util.delete_dir_contents(self.tmp)
self.assertDirEmpty(self.tmp)
def test_deletes_symlinks(self):
"""Symlinks should be deleted."""
file_name = os.path.join(self.tmp, "new_file.txt")
link_name = os.path.join(self.tmp, "new_file_link.txt")
with open(file_name, "wb") as f:
f.write("DELETE ME")
os.symlink(file_name, link_name)
util.delete_dir_contents(self.tmp)
self.assertDirEmpty(self.tmp)
class TestKeyValStrings(TestCase):
def test_keyval_str_to_dict(self):
expected = {'1': 'one', '2': 'one+one', 'ro': True}
cmdline = "1=one ro 2=one+one"
self.assertEqual(expected, util.keyval_str_to_dict(cmdline))
class TestGetCmdline(TestCase):
def test_cmdline_reads_debug_env(self):
os.environ['DEBUG_PROC_CMDLINE'] = 'abcd 123'
self.assertEqual(os.environ['DEBUG_PROC_CMDLINE'], util.get_cmdline())
class TestLoadYaml(TestCase):
mydefault = "7b03a8ebace993d806255121073fed52"
def test_simple(self):
mydata = {'1': "one", '2': "two"}
self.assertEqual(util.load_yaml(yaml.dump(mydata)), mydata)
def test_nonallowed_returns_default(self):
# for now, anything not in the allowed list just returns the default.
myyaml = yaml.dump({'1': "one"})
self.assertEqual(util.load_yaml(blob=myyaml,
default=self.mydefault,
allowed=(str,)),
self.mydefault)
def test_bogus_returns_default(self):
badyaml = "1\n 2:"
self.assertEqual(util.load_yaml(blob=badyaml,
default=self.mydefault),
self.mydefault)
def test_unsafe_types(self):
# should not load complex types
unsafe_yaml = yaml.dump((1, 2, 3,))
self.assertEqual(util.load_yaml(blob=unsafe_yaml,
default=self.mydefault),
self.mydefault)
def test_python_unicode(self):
# complex type of python/unicde is explicitly allowed
myobj = {'1': unicode("FOOBAR")}
safe_yaml = yaml.dump(myobj)
self.assertEqual(util.load_yaml(blob=safe_yaml,
default=self.mydefault),
myobj)
class TestMountinfoParsing(helpers.ResourceUsingTestCase):
def test_invalid_mountinfo(self):
line = ("20 1 252:1 / / rw,relatime - ext4 /dev/mapper/vg0-root"
"rw,errors=remount-ro,data=ordered")
elements = line.split()
for i in range(len(elements) + 1):
lines = [' '.join(elements[0:i])]
if i < 10:
expected = None
else:
expected = ('/dev/mapper/vg0-root', 'ext4', '/')
self.assertEqual(expected, util.parse_mount_info('/', lines))
def test_precise_ext4_root(self):
lines = self.readResource('mountinfo_precise_ext4.txt').splitlines()
expected = ('/dev/mapper/vg0-root', 'ext4', '/')
self.assertEqual(expected, util.parse_mount_info('/', lines))
self.assertEqual(expected, util.parse_mount_info('/usr', lines))
self.assertEqual(expected, util.parse_mount_info('/usr/bin', lines))
expected = ('/dev/md0', 'ext4', '/boot')
self.assertEqual(expected, util.parse_mount_info('/boot', lines))
self.assertEqual(expected, util.parse_mount_info('/boot/grub', lines))
expected = ('/dev/mapper/vg0-root', 'ext4', '/')
self.assertEqual(expected, util.parse_mount_info('/home', lines))
self.assertEqual(expected, util.parse_mount_info('/home/me', lines))
expected = ('tmpfs', 'tmpfs', '/run')
self.assertEqual(expected, util.parse_mount_info('/run', lines))
expected = ('none', 'tmpfs', '/run/lock')
self.assertEqual(expected, util.parse_mount_info('/run/lock', lines))
def test_raring_btrfs_root(self):
lines = self.readResource('mountinfo_raring_btrfs.txt').splitlines()
expected = ('/dev/vda1', 'btrfs', '/')
self.assertEqual(expected, util.parse_mount_info('/', lines))
self.assertEqual(expected, util.parse_mount_info('/usr', lines))
self.assertEqual(expected, util.parse_mount_info('/usr/bin', lines))
self.assertEqual(expected, util.parse_mount_info('/boot', lines))
self.assertEqual(expected, util.parse_mount_info('/boot/grub', lines))
expected = ('/dev/vda1', 'btrfs', '/home')
self.assertEqual(expected, util.parse_mount_info('/home', lines))
self.assertEqual(expected, util.parse_mount_info('/home/me', lines))
expected = ('tmpfs', 'tmpfs', '/run')
self.assertEqual(expected, util.parse_mount_info('/run', lines))
expected = ('none', 'tmpfs', '/run/lock')
self.assertEqual(expected, util.parse_mount_info('/run/lock', lines))
# vi: ts=4 expandtab
|
