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# This file is part of cloud-init. See LICENSE file for license information.
"""Tests netinfo module functions and classes."""
from copy import copy
from cloudinit.netinfo import netdev_info, netdev_pformat, route_pformat
from cloudinit.tests.helpers import CiTestCase, mock, readResource
# Example ifconfig and route output
SAMPLE_OLD_IFCONFIG_OUT = readResource("netinfo/old-ifconfig-output")
SAMPLE_NEW_IFCONFIG_OUT = readResource("netinfo/new-ifconfig-output")
SAMPLE_FREEBSD_IFCONFIG_OUT = readResource("netinfo/freebsd-ifconfig-output")
SAMPLE_IPADDRSHOW_OUT = readResource("netinfo/sample-ipaddrshow-output")
SAMPLE_ROUTE_OUT_V4 = readResource("netinfo/sample-route-output-v4")
SAMPLE_ROUTE_OUT_V6 = readResource("netinfo/sample-route-output-v6")
SAMPLE_IPROUTE_OUT_V4 = readResource("netinfo/sample-iproute-output-v4")
SAMPLE_IPROUTE_OUT_V6 = readResource("netinfo/sample-iproute-output-v6")
NETDEV_FORMATTED_OUT = readResource("netinfo/netdev-formatted-output")
ROUTE_FORMATTED_OUT = readResource("netinfo/route-formatted-output")
FREEBSD_NETDEV_OUT = readResource("netinfo/freebsd-netdev-formatted-output")
class TestNetInfo(CiTestCase):
maxDiff = None
with_logs = True
@mock.patch('cloudinit.netinfo.util.which')
@mock.patch('cloudinit.netinfo.util.subp')
def test_netdev_old_nettools_pformat(self, m_subp, m_which):
"""netdev_pformat properly rendering old nettools info."""
m_subp.return_value = (SAMPLE_OLD_IFCONFIG_OUT, '')
m_which.side_effect = lambda x: x if x == 'ifconfig' else None
content = netdev_pformat()
self.assertEqual(NETDEV_FORMATTED_OUT, content)
@mock.patch('cloudinit.netinfo.util.which')
@mock.patch('cloudinit.netinfo.util.subp')
def test_netdev_new_nettools_pformat(self, m_subp, m_which):
"""netdev_pformat properly rendering netdev new nettools info."""
m_subp.return_value = (SAMPLE_NEW_IFCONFIG_OUT, '')
m_which.side_effect = lambda x: x if x == 'ifconfig' else None
content = netdev_pformat()
self.assertEqual(NETDEV_FORMATTED_OUT, content)
@mock.patch('cloudinit.netinfo.util.which')
@mock.patch('cloudinit.netinfo.util.subp')
def test_netdev_freebsd_nettools_pformat(self, m_subp, m_which):
"""netdev_pformat properly rendering netdev new nettools info."""
m_subp.return_value = (SAMPLE_FREEBSD_IFCONFIG_OUT, '')
m_which.side_effect = lambda x: x if x == 'ifconfig' else None
content = netdev_pformat()
print()
print(content)
print()
self.assertEqual(FREEBSD_NETDEV_OUT, content)
@mock.patch('cloudinit.netinfo.util.which')
@mock.patch('cloudinit.netinfo.util.subp')
def test_netdev_iproute_pformat(self, m_subp, m_which):
"""netdev_pformat properly rendering ip route info."""
m_subp.return_value = (SAMPLE_IPADDRSHOW_OUT, '')
m_which.side_effect = lambda x: x if x == 'ip' else None
content = netdev_pformat()
new_output = copy(NETDEV_FORMATTED_OUT)
# ip route show describes global scopes on ipv4 addresses
# whereas ifconfig does not. Add proper global/host scope to output.
new_output = new_output.replace('| . | 50:7b', '| global | 50:7b')
new_output = new_output.replace(
'255.0.0.0 | . |', '255.0.0.0 | host |')
self.assertEqual(new_output, content)
@mock.patch('cloudinit.netinfo.util.which')
@mock.patch('cloudinit.netinfo.util.subp')
def test_netdev_warn_on_missing_commands(self, m_subp, m_which):
"""netdev_pformat warns when missing both ip and 'netstat'."""
m_which.return_value = None # Niether ip nor netstat found
content = netdev_pformat()
self.assertEqual('\n', content)
self.assertEqual(
"WARNING: Could not print networks: missing 'ip' and 'ifconfig'"
" commands\n",
self.logs.getvalue())
m_subp.assert_not_called()
@mock.patch('cloudinit.netinfo.util.which')
@mock.patch('cloudinit.netinfo.util.subp')
def test_netdev_info_nettools_down(self, m_subp, m_which):
"""test netdev_info using nettools and down interfaces."""
m_subp.return_value = (
readResource("netinfo/new-ifconfig-output-down"), "")
m_which.side_effect = lambda x: x if x == 'ifconfig' else None
self.assertEqual(
{'eth0': {'ipv4': [], 'ipv6': [],
'hwaddr': '00:16:3e:de:51:a6', 'up': False},
'lo': {'ipv4': [{'ip': '127.0.0.1', 'mask': '255.0.0.0'}],
'ipv6': [{'ip': '::1/128', 'scope6': 'host'}],
'hwaddr': '.', 'up': True}},
netdev_info("."))
@mock.patch('cloudinit.netinfo.util.which')
@mock.patch('cloudinit.netinfo.util.subp')
def test_netdev_info_iproute_down(self, m_subp, m_which):
"""Test netdev_info with ip and down interfaces."""
m_subp.return_value = (
readResource("netinfo/sample-ipaddrshow-output-down"), "")
m_which.side_effect = lambda x: x if x == 'ip' else None
self.assertEqual(
{'lo': {'ipv4': [{'ip': '127.0.0.1', 'bcast': '.',
'mask': '255.0.0.0', 'scope': 'host'}],
'ipv6': [{'ip': '::1/128', 'scope6': 'host'}],
'hwaddr': '.', 'up': True},
'eth0': {'ipv4': [], 'ipv6': [],
'hwaddr': '00:16:3e:de:51:a6', 'up': False}},
netdev_info("."))
@mock.patch('cloudinit.netinfo.netdev_info')
def test_netdev_pformat_with_down(self, m_netdev_info):
"""test netdev_pformat when netdev_info returns 'down' interfaces."""
m_netdev_info.return_value = (
{'lo': {'ipv4': [{'ip': '127.0.0.1', 'mask': '255.0.0.0',
'scope': 'host'}],
'ipv6': [{'ip': '::1/128', 'scope6': 'host'}],
'hwaddr': '.', 'up': True},
'eth0': {'ipv4': [], 'ipv6': [],
'hwaddr': '00:16:3e:de:51:a6', 'up': False}})
self.assertEqual(
readResource("netinfo/netdev-formatted-output-down"),
netdev_pformat())
@mock.patch('cloudinit.netinfo.util.which')
@mock.patch('cloudinit.netinfo.util.subp')
def test_route_nettools_pformat(self, m_subp, m_which):
"""route_pformat properly rendering nettools route info."""
def subp_netstat_route_selector(*args, **kwargs):
if args[0] == ['netstat', '--route', '--numeric', '--extend']:
return (SAMPLE_ROUTE_OUT_V4, '')
if args[0] == ['netstat', '-A', 'inet6', '--route', '--numeric']:
return (SAMPLE_ROUTE_OUT_V6, '')
raise Exception('Unexpected subp call %s' % args[0])
m_subp.side_effect = subp_netstat_route_selector
m_which.side_effect = lambda x: x if x == 'netstat' else None
content = route_pformat()
self.assertEqual(ROUTE_FORMATTED_OUT, content)
@mock.patch('cloudinit.netinfo.util.which')
@mock.patch('cloudinit.netinfo.util.subp')
def test_route_iproute_pformat(self, m_subp, m_which):
"""route_pformat properly rendering ip route info."""
def subp_iproute_selector(*args, **kwargs):
if ['ip', '-o', 'route', 'list'] == args[0]:
return (SAMPLE_IPROUTE_OUT_V4, '')
v6cmd = ['ip', '--oneline', '-6', 'route', 'list', 'table', 'all']
if v6cmd == args[0]:
return (SAMPLE_IPROUTE_OUT_V6, '')
raise Exception('Unexpected subp call %s' % args[0])
m_subp.side_effect = subp_iproute_selector
m_which.side_effect = lambda x: x if x == 'ip' else None
content = route_pformat()
self.assertEqual(ROUTE_FORMATTED_OUT, content)
@mock.patch('cloudinit.netinfo.util.which')
@mock.patch('cloudinit.netinfo.util.subp')
def test_route_warn_on_missing_commands(self, m_subp, m_which):
"""route_pformat warns when missing both ip and 'netstat'."""
m_which.return_value = None # Niether ip nor netstat found
content = route_pformat()
self.assertEqual('\n', content)
self.assertEqual(
"WARNING: Could not print routes: missing 'ip' and 'netstat'"
" commands\n",
self.logs.getvalue())
m_subp.assert_not_called()
# vi: ts=4 expandtab
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