def test_interface_migration(self):
node = nemu.Node()
self.dummyname = "dummy%d" % os.getpid()
self.assertEquals(
os.system("%s link add name %s type dummy" %
(IP_PATH, self.dummyname)), 0)
devs = get_devs()
self.assertTrue(self.dummyname in devs)
dummyidx = devs[self.dummyname]['idx']
if0 = node.import_if(self.dummyname)
self.assertTrue(self.dummyname not in get_devs())
node_devs = dict([(i.index, i) for i in node.get_interfaces()])
self.assertTrue(dummyidx in node_devs)
if0.lladdr = '42:71:e0:90:ca:43'
if0.mtu = 1400
devs = get_devs_netns(node)
self.assertTrue(if0.name in devs)
self.assertEquals(devs[if0.name]['lladdr'], '42:71:e0:90:ca:43')
self.assertEquals(devs[if0.name]['mtu'], 1400)
node.destroy()
self.assertTrue(self.dummyname in get_devs())
def test_interface_migration(self):
node = nemu.Node()
self.dummyname = "dummy%d" % os.getpid()
self.assertEquals(os.system("%s link add name %s type dummy" %
(IP_PATH, self.dummyname)), 0)
devs = get_devs()
self.assertTrue(self.dummyname in devs)
dummyidx = devs[self.dummyname]['idx']
if0 = node.import_if(self.dummyname)
self.assertTrue(self.dummyname not in get_devs())
node_devs = dict([(i.index, i) for i in node.get_interfaces()])
self.assertTrue(dummyidx in node_devs)
if0.lladdr = '42:71:e0:90:ca:43'
if0.mtu = 1400
devs = get_devs_netns(node)
self.assertTrue(if0.name in devs)
self.assertEquals(devs[if0.name]['lladdr'], '42:71:e0:90:ca:43')
self.assertEquals(devs[if0.name]['mtu'], 1400)
node.destroy()
self.assertTrue(self.dummyname in get_devs())
def test_utils(self):
devs = get_devs()
# There should be at least loopback!
self.assertTrue(len(devs) > 0)
self.assertTrue('lo' in devs)
self.assertTrue(devs['lo']['up'])
self.assertEquals(devs['lo']['lladdr'], '00:00:00:00:00:00')
self.assertTrue( {
'address': '127.0.0.1', 'prefix_len': 8,
'broadcast': None, 'family': 'inet'
} in devs['lo']['addr'])
def test_interface_creation(self):
node0 = nemu.Node()
ifaces = []
for i in range(5):
ifaces.append(node0.add_if())
devs = get_devs_netns(node0)
for i in range(5):
self.assertTrue(devs['lo']['up'])
self.assertTrue(ifaces[i].name in devs)
node_devs = set(node0.get_interfaces())
self.assertTrue(set(ifaces).issubset(node_devs))
loopback = node_devs - set(ifaces) # should be!
self.assertEquals(len(loopback), 1)
self.assertEquals(loopback.pop().name, 'lo')
devs = get_devs()
for i in range(5):
peer_name = nemu.iproute.get_if(ifaces[i].control.index).name
self.assertTrue(peer_name in devs)
def test_interface_creation(self):
node0 = nemu.Node()
ifaces = []
for i in range(5):
ifaces.append(node0.add_if())
devs = get_devs_netns(node0)
for i in range(5):
self.assertTrue(devs['lo']['up'])
self.assertTrue(ifaces[i].name in devs)
node_devs = set(node0.get_interfaces())
self.assertTrue(set(ifaces).issubset(node_devs))
loopback = node_devs - set(ifaces) # should be!
self.assertEquals(len(loopback), 1)
self.assertEquals(loopback.pop().name, 'lo')
devs = get_devs()
for i in range(5):
peer_name = nemu.iproute.get_if(ifaces[i].control.index).name
self.assertTrue(peer_name in devs)
def test_cleanup(self):
def create_stuff():
a = nemu.Node()
b = nemu.Node()
ifa = a.add_if()
ifb = b.add_if()
switch = nemu.Switch()
switch.connect(ifa)
switch.connect(ifb)
# Test automatic destruction
orig_devs = len(test_util.get_devs())
create_stuff()
self.assertEquals(nemu.get_nodes(), [])
self.assertEquals(orig_devs, len(test_util.get_devs()))
# Test at_exit hooks
orig_devs = len(test_util.get_devs())
chld = os.fork()
if chld == 0:
# TODO: not implemented.
#nemu.set_cleanup_hooks(on_exit = True, on_signals = [])
create_stuff()
os._exit(0)
os.waitpid(chld, 0)
self.assertEquals(orig_devs, len(test_util.get_devs()))
# Test signal hooks
orig_devs = len(test_util.get_devs())
chld = os.fork()
if chld == 0:
# TODO: not implemented.
#nemu.set_cleanup_hooks(on_exit = False,
# on_signals = [signal.SIGTERM])
create_stuff()
while True:
time.sleep(10)
os.kill(chld, signal.SIGTERM)
os.waitpid(chld, 0)
self.assertEquals(orig_devs, len(test_util.get_devs()))
def test_cleanup(self):
def create_stuff():
a = nemu.Node()
b = nemu.Node()
ifa = a.add_if()
ifb = b.add_if()
switch = nemu.Switch()
switch.connect(ifa)
switch.connect(ifb)
# Test automatic destruction
orig_devs = len(test_util.get_devs())
create_stuff()
self.assertEquals(nemu.get_nodes(), [])
self.assertEquals(orig_devs, len(test_util.get_devs()))
# Test at_exit hooks
orig_devs = len(test_util.get_devs())
chld = os.fork()
if chld == 0:
# TODO: not implemented.
#nemu.set_cleanup_hooks(on_exit = True, on_signals = [])
create_stuff()
os._exit(0)
os.waitpid(chld, 0)
self.assertEquals(orig_devs, len(test_util.get_devs()))
# Test signal hooks
orig_devs = len(test_util.get_devs())
chld = os.fork()
if chld == 0:
# TODO: not implemented.
#nemu.set_cleanup_hooks(on_exit = False,
# on_signals = [signal.SIGTERM])
create_stuff()
while True:
time.sleep(10)
os.kill(chld, signal.SIGTERM)
os.waitpid(chld, 0)
self.assertEquals(orig_devs, len(test_util.get_devs()))
