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1 | #!/usr/bin/env python |
2 | ||
3 | # | |
4 | # test_ldp_oc_acl_topo1.py | |
5 | # Part of NetDEF Topology Tests | |
6 | # | |
7 | # Copyright (c) 2020 by Volta Networks | |
8 | # | |
9 | # Permission to use, copy, modify, and/or distribute this software | |
10 | # for any purpose with or without fee is hereby granted, provided | |
11 | # that the above copyright notice and this permission notice appear | |
12 | # in all copies. | |
13 | # | |
14 | # THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES | |
15 | # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
16 | # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR | |
17 | # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY | |
18 | # DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | |
19 | # WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS | |
20 | # ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
21 | # OF THIS SOFTWARE. | |
22 | # | |
23 | ||
24 | """ | |
25 | test_ldp_oc_acl_topo1.py: Simple FRR/Quagga LDP Test | |
26 | ||
27 | +---------+ | |
28 | | r1 | | |
29 | | 1.1.1.1 | | |
30 | +----+----+ | |
31 | | .1 r1-eth0 | |
32 | | | |
33 | ~~~~~~~~~~~~~ | |
34 | ~~ sw0 ~~ | |
35 | ~~ 10.0.1.0/24 ~~ | |
36 | ~~~~~~~~~~~~~ | |
37 | |10.0.1.0/24 | |
38 | | | |
39 | | .2 r2-eth0 | |
40 | +----+----+ | |
41 | | r2 | | |
42 | | 2.2.2.2 | | |
43 | +--+---+--+ | |
44 | r2-eth2 .2 | | .2 r2-eth1 | |
45 | ______/ \______ | |
46 | / \ | |
47 | ~~~~~~~~~~~~~ ~~~~~~~~~~~~~ | |
48 | ~~ sw2 ~~ ~~ sw1 ~~ | |
49 | ~~ 10.0.3.0/24 ~~ ~~ 10.0.2.0/24 ~~ | |
50 | ~~~~~~~~~~~~~ ~~~~~~~~~~~~~ | |
51 | | / | | |
52 | \ _________/ | | |
53 | \ / \ | |
54 | r3-eth1 .3 | | .3 r3-eth0 | .4 r4-eth0 | |
55 | +----+--+---+ +----+----+ | |
56 | | r3 | | r4 | | |
57 | | 3.3.3.3 | | 4.4.4.4 | | |
58 | +-----------+ +---------+ | |
59 | """ | |
60 | ||
61 | import os | |
62 | import sys | |
63 | import pytest | |
64 | import json | |
65 | from time import sleep | |
66 | from functools import partial | |
67 | ||
68 | # Save the Current Working Directory to find configuration files. | |
69 | CWD = os.path.dirname(os.path.realpath(__file__)) | |
70 | sys.path.append(os.path.join(CWD, '../')) | |
71 | ||
72 | # pylint: disable=C0413 | |
73 | # Import topogen and topotest helpers | |
74 | from lib import topotest | |
75 | from lib.topogen import Topogen, TopoRouter, get_topogen | |
76 | from lib.topolog import logger | |
77 | ||
78 | # Required to instantiate the topology builder class. | |
79 | from mininet.topo import Topo | |
80 | ||
81 | class TemplateTopo(Topo): | |
82 | "Test topology builder" | |
83 | def build(self, *_args, **_opts): | |
84 | "Build function" | |
85 | tgen = get_topogen(self) | |
86 | ||
87 | # | |
88 | # Define FRR Routers | |
89 | # | |
90 | for router in ['r1', 'r2', 'r3', 'r4']: | |
91 | tgen.add_router(router) | |
92 | ||
93 | # | |
94 | # Define connections | |
95 | # | |
96 | switch = tgen.add_switch('s0') | |
97 | switch.add_link(tgen.gears['r1']) | |
98 | switch.add_link(tgen.gears['r2']) | |
99 | ||
100 | switch = tgen.add_switch('s1') | |
101 | switch.add_link(tgen.gears['r2']) | |
102 | switch.add_link(tgen.gears['r3']) | |
103 | switch.add_link(tgen.gears['r4']) | |
104 | ||
105 | switch = tgen.add_switch('s2') | |
106 | switch.add_link(tgen.gears['r2']) | |
107 | switch.add_link(tgen.gears['r3']) | |
108 | ||
109 | def setup_module(mod): | |
110 | "Sets up the pytest environment" | |
111 | tgen = Topogen(TemplateTopo, mod.__name__) | |
112 | tgen.start_topology() | |
113 | ||
114 | router_list = tgen.routers() | |
115 | ||
116 | # For all registered routers, load the zebra configuration file | |
117 | for rname, router in router_list.iteritems(): | |
118 | router.load_config( | |
119 | TopoRouter.RD_ZEBRA, | |
120 | os.path.join(CWD, '{}/zebra.conf'.format(rname)) | |
121 | ) | |
122 | # Don't start ospfd and ldpd in the CE nodes | |
123 | if router.name[0] == 'r': | |
124 | router.load_config( | |
125 | TopoRouter.RD_OSPF, | |
126 | os.path.join(CWD, '{}/ospfd.conf'.format(rname)) | |
127 | ) | |
128 | router.load_config( | |
129 | TopoRouter.RD_LDP, | |
130 | os.path.join(CWD, '{}/ldpd.conf'.format(rname)) | |
131 | ) | |
132 | ||
133 | tgen.start_router() | |
134 | ||
135 | def teardown_module(mod): | |
136 | "Teardown the pytest environment" | |
137 | tgen = get_topogen() | |
138 | ||
139 | # This function tears down the whole topology. | |
140 | tgen.stop_topology() | |
141 | ||
142 | ||
143 | def router_compare_json_output(rname, command, reference): | |
144 | "Compare router JSON output" | |
145 | ||
146 | logger.info('Comparing router "%s" "%s" output', rname, command) | |
147 | ||
148 | tgen = get_topogen() | |
149 | filename = '{}/{}/{}'.format(CWD, rname, reference) | |
150 | expected = json.loads(open(filename).read()) | |
151 | ||
152 | # Run test function until we get an result. Wait at most 80 seconds. | |
153 | test_func = partial(topotest.router_json_cmp, | |
154 | tgen.gears[rname], command, expected) | |
155 | _, diff = topotest.run_and_expect(test_func, None, count=160, wait=0.5) | |
156 | ||
157 | assertmsg = '"{}" JSON output mismatches the expected result'.format(rname) | |
158 | assert diff is None, assertmsg | |
159 | ||
160 | def test_ospf_convergence(): | |
161 | logger.info("Test: check OSPF adjacencies") | |
162 | ||
163 | tgen = get_topogen() | |
164 | ||
165 | # Skip if previous fatal error condition is raised | |
166 | if tgen.routers_have_failure(): | |
167 | pytest.skip(tgen.errors) | |
168 | ||
169 | for rname in ['r1', 'r2', 'r3', 'r4']: | |
170 | router_compare_json_output(rname, "show ip ospf neighbor json", "show_ip_ospf_neighbor.json") | |
171 | ||
172 | def test_rib(): | |
173 | logger.info("Test: verify RIB") | |
174 | tgen = get_topogen() | |
175 | ||
176 | # Skip if previous fatal error condition is raised | |
177 | if tgen.routers_have_failure(): | |
178 | pytest.skip(tgen.errors) | |
179 | ||
180 | for rname in ['r1', 'r2', 'r3', 'r4']: | |
181 | router_compare_json_output(rname, "show ip route json", "show_ip_route.ref") | |
182 | ||
183 | def test_ldp_adjacencies(): | |
184 | logger.info("Test: verify LDP adjacencies") | |
185 | tgen = get_topogen() | |
186 | ||
187 | # Skip if previous fatal error condition is raised | |
188 | if tgen.routers_have_failure(): | |
189 | pytest.skip(tgen.errors) | |
190 | ||
191 | for rname in ['r1', 'r2', 'r3', 'r4']: | |
192 | router_compare_json_output(rname, "show mpls ldp discovery json", "show_ldp_discovery.ref") | |
193 | ||
194 | def test_ldp_neighbors(): | |
195 | logger.info("Test: verify LDP neighbors") | |
196 | tgen = get_topogen() | |
197 | ||
198 | # Skip if previous fatal error condition is raised | |
199 | if tgen.routers_have_failure(): | |
200 | pytest.skip(tgen.errors) | |
201 | ||
202 | for rname in ['r1', 'r2', 'r3', 'r4']: | |
203 | router_compare_json_output(rname, "show mpls ldp neighbor json", "show_ldp_neighbor.ref") | |
204 | ||
205 | def test_ldp_bindings(): | |
206 | logger.info("Test: verify LDP bindings") | |
207 | tgen = get_topogen() | |
208 | ||
209 | # Skip if previous fatal error condition is raised | |
210 | if tgen.routers_have_failure(): | |
211 | pytest.skip(tgen.errors) | |
212 | ||
213 | for rname in ['r1', 'r2', 'r3', 'r4']: | |
214 | router_compare_json_output(rname, "show mpls ldp binding json", "show_ldp_binding.ref") | |
215 | ||
216 | # Memory leak test template | |
217 | def test_memory_leak(): | |
218 | "Run the memory leak test and report results." | |
219 | tgen = get_topogen() | |
220 | if not tgen.is_memleak_enabled(): | |
221 | pytest.skip('Memory leak test/report is disabled') | |
222 | ||
223 | tgen.report_memory_leaks() | |
224 | ||
225 | if __name__ == '__main__': | |
226 | args = ["-s"] + sys.argv[1:] | |
227 | sys.exit(pytest.main(args)) |