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from mocker import MockerTestCase
import mocker
import os
from cloudinit import distros
from cloudinit import helpers
from cloudinit import settings
from cloudinit import util
from StringIO import StringIO
BASE_NET_CFG ='''
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 192.168.1.5
netmask 255.255.255.0
network 192.168.0.0
broadcast 192.168.1.0
gateway 192.168.1.254
auto eth1
iface eth1 inet dhcp
'''
class WriteBuffer(object):
def __init__(self):
self.buffer = StringIO()
self.mode = None
self.omode = None
def write(self, text):
self.buffer.write(text)
def __str__(self):
return self.buffer.getvalue()
class TestNetCfgDistro(MockerTestCase):
def _get_distro(self, dname):
cls = distros.fetch(dname)
cfg = settings.CFG_BUILTIN
cfg['system_info']['distro'] = dname
paths = helpers.Paths({})
return cls(dname, cfg, paths)
def test_simple_write_ub(self):
ub_distro = self._get_distro('ubuntu')
util_mock = self.mocker.replace(util.write_file, spec=False, passthrough=False)
exists_mock = self.mocker.replace(os.path.isfile, spec=False, passthrough=False)
exists_mock(mocker.ARGS)
self.mocker.count(0, None)
self.mocker.result(False)
write_bufs = {}
def replace_write(filename, content, mode=0644, omode="wb"):
buf = WriteBuffer()
buf.mode = mode
buf.omode = omode
buf.write(content)
write_bufs[filename] = buf
util_mock(mocker.ARGS)
self.mocker.call(replace_write)
self.mocker.replay()
ub_distro.apply_network(BASE_NET_CFG, False)
self.assertEquals(len(write_bufs), 1)
self.assertIn('/etc/network/interfaces', write_bufs)
write_buf = write_bufs['/etc/network/interfaces']
self.assertEquals(str(write_buf).strip(), BASE_NET_CFG.strip())
self.assertEquals(write_buf.mode, 0644)
def test_simple_write_rh(self):
rh_distro = self._get_distro('rhel')
write_mock = self.mocker.replace(util.write_file, spec=False, passthrough=False)
load_mock = self.mocker.replace(util.load_file, spec=False, passthrough=False)
exists_mock = self.mocker.replace(os.path.isfile, spec=False, passthrough=False)
write_bufs = {}
def replace_write(filename, content, mode=0644, omode="wb"):
buf = WriteBuffer()
buf.mode = mode
buf.omode = omode
buf.write(content)
write_bufs[filename] = buf
exists_mock(mocker.ARGS)
self.mocker.count(0, None)
self.mocker.result(False)
load_mock(mocker.ARGS)
self.mocker.count(0, None)
self.mocker.result('')
for i in range(0, 3):
write_mock(mocker.ARGS)
self.mocker.call(replace_write)
self.mocker.replay()
rh_distro.apply_network(BASE_NET_CFG, False)
self.assertEquals(len(write_bufs), 3)
self.assertIn('/etc/sysconfig/network-scripts/ifcfg-lo', write_bufs)
write_buf = write_bufs['/etc/sysconfig/network-scripts/ifcfg-lo']
expected_buf = '''
# Created by cloud-init
DEVICE="lo"
ONBOOT=yes
'''
self.assertEquals(str(write_buf).strip(), expected_buf.strip())
self.assertEquals(write_buf.mode, 0644)
self.assertIn('/etc/sysconfig/network-scripts/ifcfg-eth0', write_bufs)
write_buf = write_bufs['/etc/sysconfig/network-scripts/ifcfg-eth0']
expected_buf = '''
# Created by cloud-init
DEVICE="eth0"
BOOTPROTO="static"
NETMASK="255.255.255.0"
IPADDR="192.168.1.5"
ONBOOT=yes
GATEWAY="192.168.1.254"
BROADCAST="192.168.1.0"
'''
self.assertEquals(str(write_buf).strip(), expected_buf.strip())
self.assertEquals(write_buf.mode, 0644)
self.assertIn('/etc/sysconfig/network-scripts/ifcfg-eth1', write_bufs)
write_buf = write_bufs['/etc/sysconfig/network-scripts/ifcfg-eth1']
expected_buf = '''
# Created by cloud-init
DEVICE="eth1"
BOOTPROTO="dhcp"
ONBOOT=yes
'''
self.assertEquals(str(write_buf).strip(), expected_buf.strip())
self.assertEquals(write_buf.mode, 0644)
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