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tahoe-lafs/src/allmydata/test/test_iputil.py
Daira Hopwood 3ae6ceb6a8 Add Namespace utility class. (This is already used in the leasedb/cloud backend branch.) 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
2015-07-17 22:12:25 +01:00

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import re, errno, subprocess, os
from twisted.trial import unittest
from allmydata.util import iputil
import allmydata.test.common_util as testutil
from allmydata.util.namespace import Namespace
DOTTED_QUAD_RE=re.compile("^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$")
MOCK_IPADDR_OUTPUT = """\
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN \n\
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host \n\
valid_lft forever preferred_lft forever
2: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether d4:3d:7e:01:b4:3e brd ff:ff:ff:ff:ff:ff
inet 192.168.0.6/24 brd 192.168.0.255 scope global eth1
inet6 fe80::d63d:7eff:fe01:b43e/64 scope link \n\
valid_lft forever preferred_lft forever
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
link/ether 90:f6:52:27:15:0a brd ff:ff:ff:ff:ff:ff
inet 192.168.0.2/24 brd 192.168.0.255 scope global wlan0
inet6 fe80::92f6:52ff:fe27:150a/64 scope link \n\
valid_lft forever preferred_lft forever
"""
MOCK_IFCONFIG_OUTPUT = """\
eth1 Link encap:Ethernet HWaddr d4:3d:7e:01:b4:3e \n\
inet addr:192.168.0.6 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::d63d:7eff:fe01:b43e/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:154242234 errors:0 dropped:0 overruns:0 frame:0
TX packets:155461891 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000 \n\
RX bytes:84367213640 (78.5 GiB) TX bytes:73401695329 (68.3 GiB)
Interrupt:20 Memory:f4f00000-f4f20000 \n\
lo Link encap:Local Loopback \n\
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:27449267 errors:0 dropped:0 overruns:0 frame:0
TX packets:27449267 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0 \n\
RX bytes:192643017823 (179.4 GiB) TX bytes:192643017823 (179.4 GiB)
wlan0 Link encap:Ethernet HWaddr 90:f6:52:27:15:0a \n\
inet addr:192.168.0.2 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::92f6:52ff:fe27:150a/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:12352750 errors:0 dropped:0 overruns:0 frame:0
TX packets:4501451 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000 \n\
RX bytes:3916475942 (3.6 GiB) TX bytes:458353654 (437.1 MiB)
"""
# This is actually from a VirtualBox VM running XP.
MOCK_ROUTE_OUTPUT = """\
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...08 00 27 c3 80 ad ...... AMD PCNET Family PCI Ethernet Adapter - Packet Scheduler Miniport
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 10.0.2.2 10.0.2.15 20
10.0.2.0 255.255.255.0 10.0.2.15 10.0.2.15 20
10.0.2.15 255.255.255.255 127.0.0.1 127.0.0.1 20
10.255.255.255 255.255.255.255 10.0.2.15 10.0.2.15 20
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
224.0.0.0 240.0.0.0 10.0.2.15 10.0.2.15 20
255.255.255.255 255.255.255.255 10.0.2.15 10.0.2.15 1
Default Gateway: 10.0.2.2
===========================================================================
Persistent Routes:
None
"""
UNIX_TEST_ADDRESSES = set(["127.0.0.1", "192.168.0.6", "192.168.0.2", "192.168.0.10"])
WINDOWS_TEST_ADDRESSES = set(["127.0.0.1", "10.0.2.15", "192.168.0.10"])
CYGWIN_TEST_ADDRESSES = set(["127.0.0.1", "192.168.0.10"])
class FakeProcess:
def __init__(self, output, err):
self.output = output
self.err = err
def communicate(self):
return (self.output, self.err)
class ListAddresses(testutil.SignalMixin, unittest.TestCase):
def test_get_local_ip_for(self):
addr = iputil.get_local_ip_for('127.0.0.1')
self.failUnless(DOTTED_QUAD_RE.match(addr))
def test_list_async(self):
d = iputil.get_local_addresses_async()
def _check(addresses):
self.failUnlessIn("127.0.0.1", addresses)
self.failIfIn("0.0.0.0", addresses)
d.addCallbacks(_check)
return d
# David A.'s OpenSolaris box timed out on this test one time when it was at 2s.
test_list_async.timeout=4
def _test_list_async_mock(self, command, output, expected):
ns = Namespace()
ns.first = True
def call_Popen(args, bufsize=0, executable=None, stdin=None, stdout=None, stderr=None,
preexec_fn=None, close_fds=False, shell=False, cwd=None, env=None,
universal_newlines=False, startupinfo=None, creationflags=0):
if ns.first:
ns.first = False
e = OSError("EINTR")
e.errno = errno.EINTR
raise e
elif os.path.basename(args[0]) == command:
return FakeProcess(output, "")
else:
e = OSError("[Errno 2] No such file or directory")
e.errno = errno.ENOENT
raise e
self.patch(subprocess, 'Popen', call_Popen)
self.patch(os.path, 'isfile', lambda x: True)
def call_get_local_ip_for(target):
if target in ("localhost", "127.0.0.1"):
return "127.0.0.1"
else:
return "192.168.0.10"
self.patch(iputil, 'get_local_ip_for', call_get_local_ip_for)
def call_which(name):
return [name]
self.patch(iputil, 'which', call_which)
d = iputil.get_local_addresses_async()
def _check(addresses):
self.failUnlessEquals(set(addresses), set(expected))
d.addCallbacks(_check)
return d
def test_list_async_mock_ip_addr(self):
self.patch(iputil, 'platform', "linux2")
return self._test_list_async_mock("ip", MOCK_IPADDR_OUTPUT, UNIX_TEST_ADDRESSES)
def test_list_async_mock_ifconfig(self):
self.patch(iputil, 'platform', "linux2")
return self._test_list_async_mock("ifconfig", MOCK_IFCONFIG_OUTPUT, UNIX_TEST_ADDRESSES)
def test_list_async_mock_route(self):
self.patch(iputil, 'platform', "win32")
return self._test_list_async_mock("route.exe", MOCK_ROUTE_OUTPUT, WINDOWS_TEST_ADDRESSES)
def test_list_async_mock_cygwin(self):
self.patch(iputil, 'platform', "cygwin")
return self._test_list_async_mock(None, None, CYGWIN_TEST_ADDRESSES)
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