3 # NEPI, a framework to manage network experiments
4 # Copyright (C) 2013 INRIA
6 # This program is free software: you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation, either version 3 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
19 # Author: Alina Quereilhac <alina.quereilhac@inria.fr>
22 # Test based on netns test/test_core.py file test_run_ping_routing test
25 from nepi.resources.netns.netnswrapper import NetNSWrapper
27 from test_utils import skipIf
35 class NetNSWrapperTest(unittest.TestCase):
39 @skipIf(os.getuid() != 0, "Test requires root privileges")
40 def test_run_ping_routing(self):
41 wrapper = NetNSWrapper()
47 n1 = wrapper.create("Node")
48 n2 = wrapper.create("Node")
49 n3 = wrapper.create("Node")
51 ### add interfaces to nodes
56 i1 = wrapper.invoke(n1, "add_if")
57 i2a = wrapper.invoke(n2, "add_if")
58 i2b = wrapper.invoke(n2, "add_if")
59 i3 = wrapper.invoke(n3, "add_if")
62 # i1.up = i2a.up = i2b.up = i3.up = True
63 wrapper.set(i1, "up", True)
64 wrapper.set(i2a, "up", True)
65 wrapper.set(i2b, "up", True)
66 wrapper.set(i3, "up", True)
71 l1 = wrapper.create("Switch")
72 l2 = wrapper.create("Switch")
74 ### connect interfaces to switches
79 wrapper.invoke(l1, "connect", i1)
80 wrapper.invoke(l1, "connect", i2a)
81 wrapper.invoke(l2, "connect", i2b)
82 wrapper.invoke(l2, "connect", i3)
85 # l1.up = l2.up = True
86 wrapper.set(l1, "up", True)
87 wrapper.set(l2, "up", True)
89 ## add ip addresses to interfaces
90 #i1.add_v4_address('10.0.0.1', 24)
91 #i2a.add_v4_address('10.0.0.2', 24)
92 #i2b.add_v4_address('10.0.1.1', 24)
93 #i3.add_v4_address('10.0.1.2', 24)
94 wrapper.invoke(i1, "add_v4_address", "10.0.0.1", 24)
95 wrapper.invoke(i2a, "add_v4_address", "10.0.0.2", 24)
96 wrapper.invoke(i2b, "add_v4_address", "10.0.1.1", 24)
97 wrapper.invoke(i3, "add_v4_address", "10.0.1.2", 24)
99 ## add routes to nodes
100 #n1.add_route(prefix = '10.0.1.0', prefix_len = 24,
101 # nexthop = '10.0.0.2')
102 #n3.add_route(prefix = '10.0.0.0', prefix_len = 24,
103 # nexthop = '10.0.1.1')
104 wrapper.invoke(n1, "add_route", prefix = "10.0.1.0", prefix_len = 24,
105 nexthop = "10.0.0.2")
106 wrapper.invoke(n3, "add_route", prefix = "10.0.0.0", prefix_len = 24,
107 nexthop = "10.0.1.1")
110 #a1 = n1.Popen(['ping', '-qc1', '10.0.1.2'], stdout = null)
111 #a2 = n3.Popen(['ping', '-qc1', '10.0.0.1'], stdout = null)
112 path1 = "/tmp/netns_file1"
113 path2 = "/tmp/netns_file2"
114 file1 = wrapper.create("open", path1, "w")
115 file2 = wrapper.create("open", path2, "w")
116 a1 = wrapper.invoke(n1, "Popen", ["ping", "-qc1", "10.0.1.2"], stdout = file1)
117 a2 = wrapper.invoke(n3, "Popen", ["ping", "-qc1", "10.0.0.1"], stdout = file2)
122 while p1 is None or p2 is None:
123 p1 = wrapper.invoke(a1, "poll")
124 p2 = wrapper.invoke(a2, "poll")
126 stdout1 = open(path1, "r")
127 stdout2 = open(path2, "r")
132 expected = "1 packets transmitted, 1 received, 0% packet loss"
133 self.assertTrue(s1.find(expected) > -1)
134 self.assertTrue(s2.find(expected) > -1)
138 if __name__ == '__main__':