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30b421d48b
tahoe-lafs/src/allmydata/test/test_client.py
Brian Warner 30b421d48b test_client: improve coverage slightly
2016-08-28 02:39:39 -07:00

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import os, sys
import twisted
from twisted.trial import unittest
from twisted.application import service
import allmydata
import allmydata.frontends.magic_folder
import allmydata.util.log
from allmydata.node import Node, OldConfigError, OldConfigOptionError, MissingConfigEntry, UnescapedHashError
from allmydata.frontends.auth import NeedRootcapLookupScheme
from allmydata import client
from allmydata.storage_client import StorageFarmBroker
from allmydata.util import base32, fileutil
from allmydata.interfaces import IFilesystemNode, IFileNode, \
IImmutableFileNode, IMutableFileNode, IDirectoryNode
from foolscap.api import flushEventualQueue
import allmydata.test.common_util as testutil
BASECONFIG = ("[client]\n"
"introducer.furl = \n"
)
BASECONFIG_I = ("[client]\n"
"introducer.furl = %s\n"
)
class Basic(testutil.ReallyEqualMixin, testutil.NonASCIIPathMixin, unittest.TestCase):
def test_loadable(self):
basedir = "test_client.Basic.test_loadable"
os.mkdir(basedir)
fileutil.write(os.path.join(basedir, "tahoe.cfg"), \
BASECONFIG)
client.Client(basedir)
def test_comment(self):
should_fail = [r"test#test", r"#testtest", r"test\\#test"]
should_not_fail = [r"test\#test", r"test\\\#test", r"testtest"]
basedir = "test_client.Basic.test_comment"
os.mkdir(basedir)
def write_config(s):
config = ("[client]\n"
"introducer.furl = %s\n" % s)
fileutil.write(os.path.join(basedir, "tahoe.cfg"), config)
for s in should_fail:
self.failUnless(Node._contains_unescaped_hash(s))
write_config(s)
e = self.assertRaises(UnescapedHashError, client.Client, basedir)
self.assertIn("[client]introducer.furl", str(e))
for s in should_not_fail:
self.failIf(Node._contains_unescaped_hash(s))
write_config(s)
client.Client(basedir)
def test_unreadable_config(self):
if sys.platform == "win32":
# if somebody knows a clever way to do this (cause
# EnvironmentError when reading a file that really exists), on
# windows, please fix this
raise unittest.SkipTest("can't make unreadable files on windows")
basedir = "test_client.Basic.test_unreadable_config"
os.mkdir(basedir)
fn = os.path.join(basedir, "tahoe.cfg")
fileutil.write(fn, BASECONFIG)
old_mode = os.stat(fn).st_mode
os.chmod(fn, 0)
try:
e = self.assertRaises(EnvironmentError, client.Client, basedir)
self.assertIn("Permission denied", str(e))
finally:
# don't leave undeleteable junk lying around
os.chmod(fn, old_mode)
def test_error_on_old_config_files(self):
basedir = "test_client.Basic.test_error_on_old_config_files"
os.mkdir(basedir)
fileutil.write(os.path.join(basedir, "tahoe.cfg"),
BASECONFIG +
"[storage]\n" +
"enabled = false\n" +
"reserved_space = bogus\n")
fileutil.write(os.path.join(basedir, "introducer.furl"), "")
fileutil.write(os.path.join(basedir, "no_storage"), "")
fileutil.write(os.path.join(basedir, "readonly_storage"), "")
fileutil.write(os.path.join(basedir, "debug_discard_storage"), "")
logged_messages = []
self.patch(twisted.python.log, 'msg', logged_messages.append)
e = self.failUnlessRaises(OldConfigError, client.Client, basedir)
abs_basedir = fileutil.abspath_expanduser_unicode(unicode(basedir)).encode(sys.getfilesystemencoding())
self.failUnlessIn(os.path.join(abs_basedir, "introducer.furl"), e.args[0])
self.failUnlessIn(os.path.join(abs_basedir, "no_storage"), e.args[0])
self.failUnlessIn(os.path.join(abs_basedir, "readonly_storage"), e.args[0])
self.failUnlessIn(os.path.join(abs_basedir, "debug_discard_storage"), e.args[0])
for oldfile in ['introducer.furl', 'no_storage', 'readonly_storage',
'debug_discard_storage']:
logged = [ m for m in logged_messages if
("Found pre-Tahoe-LAFS-v1.3 configuration file" in str(m) and oldfile in str(m)) ]
self.failUnless(logged, (oldfile, logged_messages))
for oldfile in [
'nickname', 'webport', 'keepalive_timeout', 'log_gatherer.furl',
'disconnect_timeout', 'advertised_ip_addresses', 'helper.furl',
'key_generator.furl', 'stats_gatherer.furl', 'sizelimit',
'run_helper']:
logged = [ m for m in logged_messages if
("Found pre-Tahoe-LAFS-v1.3 configuration file" in str(m) and oldfile in str(m)) ]
self.failIf(logged, (oldfile, logged_messages))
def test_secrets(self):
basedir = "test_client.Basic.test_secrets"
os.mkdir(basedir)
fileutil.write(os.path.join(basedir, "tahoe.cfg"), \
BASECONFIG)
c = client.Client(basedir)
secret_fname = os.path.join(basedir, "private", "secret")
self.failUnless(os.path.exists(secret_fname), secret_fname)
renew_secret = c.get_renewal_secret()
self.failUnless(base32.b2a(renew_secret))
cancel_secret = c.get_cancel_secret()
self.failUnless(base32.b2a(cancel_secret))
def test_nodekey_yes_storage(self):
basedir = "test_client.Basic.test_nodekey_yes_storage"
os.mkdir(basedir)
fileutil.write(os.path.join(basedir, "tahoe.cfg"),
BASECONFIG)
c = client.Client(basedir)
self.failUnless(c.get_long_nodeid().startswith("v0-"))
def test_nodekey_no_storage(self):
basedir = "test_client.Basic.test_nodekey_no_storage"
os.mkdir(basedir)
fileutil.write(os.path.join(basedir, "tahoe.cfg"),
BASECONFIG + "[storage]\n" + "enabled = false\n")
c = client.Client(basedir)
self.failUnless(c.get_long_nodeid().startswith("v0-"))
def test_reserved_1(self):
basedir = "client.Basic.test_reserved_1"
os.mkdir(basedir)
fileutil.write(os.path.join(basedir, "tahoe.cfg"), \
BASECONFIG + \
"[storage]\n" + \
"enabled = true\n" + \
"reserved_space = 1000\n")
c = client.Client(basedir)
self.failUnlessEqual(c.getServiceNamed("storage").reserved_space, 1000)
def test_reserved_2(self):
basedir = "client.Basic.test_reserved_2"
os.mkdir(basedir)
fileutil.write(os.path.join(basedir, "tahoe.cfg"), \
BASECONFIG + \
"[storage]\n" + \
"enabled = true\n" + \
"reserved_space = 10K\n")
c = client.Client(basedir)
self.failUnlessEqual(c.getServiceNamed("storage").reserved_space, 10*1000)
def test_reserved_3(self):
basedir = "client.Basic.test_reserved_3"
os.mkdir(basedir)
fileutil.write(os.path.join(basedir, "tahoe.cfg"), \
BASECONFIG + \
"[storage]\n" + \
"enabled = true\n" + \
"reserved_space = 5mB\n")
c = client.Client(basedir)
self.failUnlessEqual(c.getServiceNamed("storage").reserved_space,
5*1000*1000)
def test_reserved_4(self):
basedir = "client.Basic.test_reserved_4"
os.mkdir(basedir)
fileutil.write(os.path.join(basedir, "tahoe.cfg"), \
BASECONFIG + \
"[storage]\n" + \
"enabled = true\n" + \
"reserved_space = 78Gb\n")
c = client.Client(basedir)
self.failUnlessEqual(c.getServiceNamed("storage").reserved_space,
78*1000*1000*1000)
def test_reserved_bad(self):
basedir = "client.Basic.test_reserved_bad"
os.mkdir(basedir)
fileutil.write(os.path.join(basedir, "tahoe.cfg"), \
BASECONFIG + \
"[storage]\n" + \
"enabled = true\n" + \
"reserved_space = bogus\n")
self.failUnlessRaises(ValueError, client.Client, basedir)
def test_web_staticdir(self):
basedir = u"client.Basic.test_web_staticdir"
os.mkdir(basedir)
fileutil.write(os.path.join(basedir, "tahoe.cfg"),
BASECONFIG +
"[node]\n" +
"web.port = tcp:0:interface=127.0.0.1\n" +
"web.static = relative\n")
c = client.Client(basedir)
w = c.getServiceNamed("webish")
abs_basedir = fileutil.abspath_expanduser_unicode(basedir)
expected = fileutil.abspath_expanduser_unicode(u"relative", abs_basedir)
self.failUnlessReallyEqual(w.staticdir, expected)
# TODO: also test config options for SFTP.
def test_ftp_auth_keyfile(self):
basedir = u"client.Basic.test_ftp_auth_keyfile"
os.mkdir(basedir)
fileutil.write(os.path.join(basedir, "tahoe.cfg"),
(BASECONFIG +
"[ftpd]\n"
"enabled = true\n"
"port = tcp:0:interface=127.0.0.1\n"
"accounts.file = private/accounts\n"))
os.mkdir(os.path.join(basedir, "private"))
fileutil.write(os.path.join(basedir, "private", "accounts"), "\n")
c = client.Client(basedir) # just make sure it can be instantiated
del c
def test_ftp_auth_url(self):
basedir = u"client.Basic.test_ftp_auth_url"
os.mkdir(basedir)
fileutil.write(os.path.join(basedir, "tahoe.cfg"),
(BASECONFIG +
"[ftpd]\n"
"enabled = true\n"
"port = tcp:0:interface=127.0.0.1\n"
"accounts.url = http://0.0.0.0/\n"))
c = client.Client(basedir) # just make sure it can be instantiated
del c
def test_ftp_auth_no_accountfile_or_url(self):
basedir = u"client.Basic.test_ftp_auth_no_accountfile_or_url"
os.mkdir(basedir)
fileutil.write(os.path.join(basedir, "tahoe.cfg"),
(BASECONFIG +
"[ftpd]\n"
"enabled = true\n"
"port = tcp:0:interface=127.0.0.1\n"))
self.failUnlessRaises(NeedRootcapLookupScheme, client.Client, basedir)
def _permute(self, sb, key):
return [ s.get_longname() for s in sb.get_servers_for_psi(key) ]
def test_permute(self):
sb = StorageFarmBroker(True, None)
for k in ["%d" % i for i in range(5)]:
ann = {"anonymous-storage-FURL": "pb://abcde@nowhere/fake",
"permutation-seed-base32": base32.b2a(k) }
sb.test_add_rref(k, "rref", ann)
self.failUnlessReallyEqual(self._permute(sb, "one"), ['3','1','0','4','2'])
self.failUnlessReallyEqual(self._permute(sb, "two"), ['0','4','2','1','3'])
sb.servers.clear()
self.failUnlessReallyEqual(self._permute(sb, "one"), [])
def test_permute_with_preferred(self):
sb = StorageFarmBroker(True, None, preferred_peers=['1','4'])
for k in ["%d" % i for i in range(5)]:
ann = {"anonymous-storage-FURL": "pb://abcde@nowhere/fake",
"permutation-seed-base32": base32.b2a(k) }
sb.test_add_rref(k, "rref", ann)
self.failUnlessReallyEqual(self._permute(sb, "one"), ['1','4','3','0','2'])
self.failUnlessReallyEqual(self._permute(sb, "two"), ['4','1','0','2','3'])
sb.servers.clear()
self.failUnlessReallyEqual(self._permute(sb, "one"), [])
def test_versions(self):
basedir = "test_client.Basic.test_versions"
os.mkdir(basedir)
fileutil.write(os.path.join(basedir, "tahoe.cfg"), \
BASECONFIG + \
"[storage]\n" + \
"enabled = true\n")
c = client.Client(basedir)
ss = c.getServiceNamed("storage")
verdict = ss.remote_get_version()
self.failUnlessReallyEqual(verdict["application-version"],
str(allmydata.__full_version__))
self.failIfEqual(str(allmydata.__version__), "unknown")
self.failUnless("." in str(allmydata.__full_version__),
"non-numeric version in '%s'" % allmydata.__version__)
all_versions = allmydata.get_package_versions_string()
self.failUnless(allmydata.__appname__ in all_versions)
# also test stats
stats = c.get_stats()
self.failUnless("node.uptime" in stats)
self.failUnless(isinstance(stats["node.uptime"], float))
def test_helper_furl(self):
basedir = "test_client.Basic.test_helper_furl"
os.mkdir(basedir)
def _check(config, expected_furl):
fileutil.write(os.path.join(basedir, "tahoe.cfg"),
BASECONFIG + config)
c = client.Client(basedir)
uploader = c.getServiceNamed("uploader")
furl, connected = uploader.get_helper_info()
self.failUnlessEqual(furl, expected_furl)
_check("", None)
_check("helper.furl =\n", None)
_check("helper.furl = \n", None)
_check("helper.furl = None", None)
_check("helper.furl = pb://blah\n", "pb://blah")
def test_create_magic_folder_service(self):
class MockMagicFolder(service.MultiService):
name = 'magic-folder'
def __init__(self, client, upload_dircap, collective_dircap, local_dir, dbfile, umask, inotify=None,
pending_delay=1.0):
service.MultiService.__init__(self)
self.client = client
self._umask = umask
self.upload_dircap = upload_dircap
self.collective_dircap = collective_dircap
self.local_dir = local_dir
self.dbfile = dbfile
self.inotify = inotify
def ready(self):
pass
self.patch(allmydata.frontends.magic_folder, 'MagicFolder', MockMagicFolder)
upload_dircap = "URI:DIR2:blah"
local_dir_u = self.unicode_or_fallback(u"loc\u0101l_dir", u"local_dir")
local_dir_utf8 = local_dir_u.encode('utf-8')
config = (BASECONFIG +
"[storage]\n" +
"enabled = false\n" +
"[magic_folder]\n" +
"enabled = true\n")
basedir1 = "test_client.Basic.test_create_magic_folder_service1"
os.mkdir(basedir1)
fileutil.write(os.path.join(basedir1, "tahoe.cfg"),
config + "local.directory = " + local_dir_utf8 + "\n")
self.failUnlessRaises(MissingConfigEntry, client.Client, basedir1)
fileutil.write(os.path.join(basedir1, "tahoe.cfg"), config)
fileutil.write(os.path.join(basedir1, "private", "magic_folder_dircap"), "URI:DIR2:blah")
fileutil.write(os.path.join(basedir1, "private", "collective_dircap"), "URI:DIR2:meow")
self.failUnlessRaises(MissingConfigEntry, client.Client, basedir1)
fileutil.write(os.path.join(basedir1, "tahoe.cfg"),
config.replace("[magic_folder]\n", "[drop_upload]\n"))
self.failUnlessRaises(OldConfigOptionError, client.Client, basedir1)
fileutil.write(os.path.join(basedir1, "tahoe.cfg"),
config + "local.directory = " + local_dir_utf8 + "\n")
c1 = client.Client(basedir1)
magicfolder = c1.getServiceNamed('magic-folder')
self.failUnless(isinstance(magicfolder, MockMagicFolder), magicfolder)
self.failUnlessReallyEqual(magicfolder.client, c1)
self.failUnlessReallyEqual(magicfolder.upload_dircap, upload_dircap)
self.failUnlessReallyEqual(os.path.basename(magicfolder.local_dir), local_dir_u)
self.failUnless(magicfolder.inotify is None, magicfolder.inotify)
self.failUnless(magicfolder.running)
class Boom(Exception):
pass
def BoomMagicFolder(client, upload_dircap, collective_dircap, local_dir, dbfile,
inotify=None, pending_delay=1.0):
raise Boom()
self.patch(allmydata.frontends.magic_folder, 'MagicFolder', BoomMagicFolder)
basedir2 = "test_client.Basic.test_create_magic_folder_service2"
os.mkdir(basedir2)
os.mkdir(os.path.join(basedir2, "private"))
fileutil.write(os.path.join(basedir2, "tahoe.cfg"),
BASECONFIG +
"[magic_folder]\n" +
"enabled = true\n" +
"local.directory = " + local_dir_utf8 + "\n")
fileutil.write(os.path.join(basedir2, "private", "magic_folder_dircap"), "URI:DIR2:blah")
fileutil.write(os.path.join(basedir2, "private", "collective_dircap"), "URI:DIR2:meow")
self.failUnlessRaises(Boom, client.Client, basedir2)
def flush_but_dont_ignore(res):
d = flushEventualQueue()
def _done(ignored):
return res
d.addCallback(_done)
return d
class Run(unittest.TestCase, testutil.StallMixin):
def setUp(self):
self.sparent = service.MultiService()
self.sparent.startService()
def tearDown(self):
d = self.sparent.stopService()
d.addBoth(flush_but_dont_ignore)
return d
def test_loadable(self):
basedir = "test_client.Run.test_loadable"
os.mkdir(basedir)
dummy = "pb://wl74cyahejagspqgy4x5ukrvfnevlknt@127.0.0.1:58889/bogus"
fileutil.write(os.path.join(basedir, "tahoe.cfg"), BASECONFIG_I % dummy)
fileutil.write(os.path.join(basedir, client.Client.EXIT_TRIGGER_FILE), "")
client.Client(basedir)
def test_reloadable(self):
basedir = "test_client.Run.test_reloadable"
os.mkdir(basedir)
dummy = "pb://wl74cyahejagspqgy4x5ukrvfnevlknt@127.0.0.1:58889/bogus"
fileutil.write(os.path.join(basedir, "tahoe.cfg"), BASECONFIG_I % dummy)
c1 = client.Client(basedir)
c1.setServiceParent(self.sparent)
# delay to let the service start up completely. I'm not entirely sure
# this is necessary.
d = self.stall(delay=2.0)
d.addCallback(lambda res: c1.disownServiceParent())
# the cygwin buildslave seems to need more time to let the old
# service completely shut down. When delay=0.1, I saw this test fail,
# probably due to the logport trying to reclaim the old socket
# number. This suggests that either we're dropping a Deferred
# somewhere in the shutdown sequence, or that cygwin is just cranky.
d.addCallback(self.stall, delay=2.0)
def _restart(res):
# TODO: pause for slightly over one second, to let
# Client._check_exit_trigger poll the file once. That will exercise
# another few lines. Then add another test in which we don't
# update the file at all, and watch to see the node shutdown.
# (To do this, use a modified node which overrides Node.shutdown(),
# also change _check_exit_trigger to use it instead of a raw
# reactor.stop, also instrument the shutdown event in an
# attribute that we can check.)
c2 = client.Client(basedir)
c2.setServiceParent(self.sparent)
return c2.disownServiceParent()
d.addCallback(_restart)
return d
class NodeMaker(testutil.ReallyEqualMixin, unittest.TestCase):
def test_maker(self):
basedir = "client/NodeMaker/maker"
fileutil.make_dirs(basedir)
fileutil.write(os.path.join(basedir, "tahoe.cfg"), BASECONFIG)
c = client.Client(basedir)
n = c.create_node_from_uri("URI:CHK:6nmrpsubgbe57udnexlkiwzmlu:bjt7j6hshrlmadjyr7otq3dc24end5meo5xcr5xe5r663po6itmq:3:10:7277")
self.failUnless(IFilesystemNode.providedBy(n))
self.failUnless(IFileNode.providedBy(n))
self.failUnless(IImmutableFileNode.providedBy(n))
self.failIf(IMutableFileNode.providedBy(n))
self.failIf(IDirectoryNode.providedBy(n))
self.failUnless(n.is_readonly())
self.failIf(n.is_mutable())
# Testing #1679. There was a bug that would occur when downloader was
# downloading the same readcap more than once concurrently, so the
# filenode object was cached, and there was a failure from one of the
# servers in one of the download attempts. No subsequent download
# attempt would attempt to use that server again, which would lead to
# the file being undownloadable until the gateway was restarted. The
# current fix for this (hopefully to be superceded by a better fix
# eventually) is to prevent re-use of filenodes, so the NodeMaker is
# hereby required *not* to cache and re-use filenodes for CHKs.
other_n = c.create_node_from_uri("URI:CHK:6nmrpsubgbe57udnexlkiwzmlu:bjt7j6hshrlmadjyr7otq3dc24end5meo5xcr5xe5r663po6itmq:3:10:7277")
self.failIf(n is other_n, (n, other_n))
n = c.create_node_from_uri("URI:LIT:n5xgk")
self.failUnless(IFilesystemNode.providedBy(n))
self.failUnless(IFileNode.providedBy(n))
self.failUnless(IImmutableFileNode.providedBy(n))
self.failIf(IMutableFileNode.providedBy(n))
self.failIf(IDirectoryNode.providedBy(n))
self.failUnless(n.is_readonly())
self.failIf(n.is_mutable())
n = c.create_node_from_uri("URI:SSK:n6x24zd3seu725yluj75q5boaa:mm6yoqjhl6ueh7iereldqxue4nene4wl7rqfjfybqrehdqmqskvq")
self.failUnless(IFilesystemNode.providedBy(n))
self.failUnless(IFileNode.providedBy(n))
self.failIf(IImmutableFileNode.providedBy(n))
self.failUnless(IMutableFileNode.providedBy(n))
self.failIf(IDirectoryNode.providedBy(n))
self.failIf(n.is_readonly())
self.failUnless(n.is_mutable())
n = c.create_node_from_uri("URI:SSK-RO:b7sr5qsifnicca7cbk3rhrhbvq:mm6yoqjhl6ueh7iereldqxue4nene4wl7rqfjfybqrehdqmqskvq")
self.failUnless(IFilesystemNode.providedBy(n))
self.failUnless(IFileNode.providedBy(n))
self.failIf(IImmutableFileNode.providedBy(n))
self.failUnless(IMutableFileNode.providedBy(n))
self.failIf(IDirectoryNode.providedBy(n))
self.failUnless(n.is_readonly())
self.failUnless(n.is_mutable())
n = c.create_node_from_uri("URI:DIR2:n6x24zd3seu725yluj75q5boaa:mm6yoqjhl6ueh7iereldqxue4nene4wl7rqfjfybqrehdqmqskvq")
self.failUnless(IFilesystemNode.providedBy(n))
self.failIf(IFileNode.providedBy(n))
self.failIf(IImmutableFileNode.providedBy(n))
self.failIf(IMutableFileNode.providedBy(n))
self.failUnless(IDirectoryNode.providedBy(n))
self.failIf(n.is_readonly())
self.failUnless(n.is_mutable())
n = c.create_node_from_uri("URI:DIR2-RO:b7sr5qsifnicca7cbk3rhrhbvq:mm6yoqjhl6ueh7iereldqxue4nene4wl7rqfjfybqrehdqmqskvq")
self.failUnless(IFilesystemNode.providedBy(n))
self.failIf(IFileNode.providedBy(n))
self.failIf(IImmutableFileNode.providedBy(n))
self.failIf(IMutableFileNode.providedBy(n))
self.failUnless(IDirectoryNode.providedBy(n))
self.failUnless(n.is_readonly())
self.failUnless(n.is_mutable())
unknown_rw = "lafs://from_the_future"
unknown_ro = "lafs://readonly_from_the_future"
n = c.create_node_from_uri(unknown_rw, unknown_ro)
self.failUnless(IFilesystemNode.providedBy(n))
self.failIf(IFileNode.providedBy(n))
self.failIf(IImmutableFileNode.providedBy(n))
self.failIf(IMutableFileNode.providedBy(n))
self.failIf(IDirectoryNode.providedBy(n))
self.failUnless(n.is_unknown())
self.failUnlessReallyEqual(n.get_uri(), unknown_rw)
self.failUnlessReallyEqual(n.get_write_uri(), unknown_rw)
self.failUnlessReallyEqual(n.get_readonly_uri(), "ro." + unknown_ro)
# Note: it isn't that we *intend* to deploy non-ASCII caps in
# the future, it is that we want to make sure older Tahoe-LAFS
# versions wouldn't choke on them if we were to do so. See
# #1051 and wiki:NewCapDesign for details.
unknown_rw = u"lafs://from_the_future_rw_\u263A".encode('utf-8')
unknown_ro = u"lafs://readonly_from_the_future_ro_\u263A".encode('utf-8')
n = c.create_node_from_uri(unknown_rw, unknown_ro)
self.failUnless(IFilesystemNode.providedBy(n))
self.failIf(IFileNode.providedBy(n))
self.failIf(IImmutableFileNode.providedBy(n))
self.failIf(IMutableFileNode.providedBy(n))
self.failIf(IDirectoryNode.providedBy(n))
self.failUnless(n.is_unknown())
self.failUnlessReallyEqual(n.get_uri(), unknown_rw)
self.failUnlessReallyEqual(n.get_write_uri(), unknown_rw)
self.failUnlessReallyEqual(n.get_readonly_uri(), "ro." + unknown_ro)
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