136 lines
3.6 KiB
Python
136 lines
3.6 KiB
Python
#!/usr/bin/env python
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# SPDX-License-Identifier: ISC
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#
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# test_static_routing_mlpls.py
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# Part of NetDEF Topology Tests
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#
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# Copyright (c) 2023 by 6WIND
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#
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"""
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test_static_routing_mpls.py: Testing MPLS configuration with mpls interface settings
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"""
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import os
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import sys
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import pytest
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import functools
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# Save the Current Working Directory to find configuration files.
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CWD = os.path.dirname(os.path.realpath(__file__))
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sys.path.append(os.path.join(CWD, "../"))
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# pylint: disable=C0413
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# Import topogen and topotest helpers
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from lib import topotest
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from lib.topogen import Topogen, TopoRouter, get_topogen
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from lib.topolog import logger
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# Required to instantiate the topology builder class.
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#####################################################
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##
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## Network Topology Definition
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##
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#####################################################
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def build_topo(tgen):
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"Build function"
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tgen.add_router("r1")
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tgen.add_router("r2")
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switch = tgen.add_switch("sw1")
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switch.add_link(tgen.gears["r1"])
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switch = tgen.add_switch("sw2")
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switch.add_link(tgen.gears["r1"])
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switch.add_link(tgen.gears["r2"])
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switch = tgen.add_switch("sw3")
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switch.add_link(tgen.gears["r2"])
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switch = tgen.add_switch("sw4")
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switch.add_link(tgen.gears["r2"])
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#####################################################
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##
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## Tests starting
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##
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#####################################################
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def _populate_mpls_labels():
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tgen = get_topogen()
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cmds_list = ["echo 100000 > /proc/sys/net/mpls/platform_labels"]
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for cmd in cmds_list:
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for host in ("r1", "r2"):
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logger.info("input: " + cmd)
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output = tgen.net[host].cmd(cmd)
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logger.info("output: " + output)
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def setup_module(module):
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"Setup topology"
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tgen = Topogen(build_topo, module.__name__)
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tgen.start_topology()
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_populate_mpls_labels()
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# This is a sample of configuration loading.
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router_list = tgen.routers()
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for rname, router in router_list.items():
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router.load_config(
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TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
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)
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tgen.start_router()
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def teardown_module(_mod):
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"Teardown the pytest environment"
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tgen = get_topogen()
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# This function tears down the whole topology.
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tgen.stop_topology()
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def _check_mpls_state_interface(router, interface, up=True):
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output = router.vtysh_cmd("show interface {}".format(interface))
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if up and "MPLS enabled" in output:
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return None
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elif not up and "MPLS enabled" not in output:
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return None
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return "not good"
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def _check_mpls_state(router, interface, configured=True):
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test_func = functools.partial(
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_check_mpls_state_interface, router, interface, up=configured
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)
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success, _ = topotest.run_and_expect(test_func, None, count=10, wait=0.5)
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return success
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def test_mpls_configured_on_interface():
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"Test 'mpls' state is correctly configured on an unconfigured interfaces"
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tgen = get_topogen()
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# Don't run this test if we have any failure.
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if tgen.routers_have_failure():
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pytest.skip(tgen.errors)
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logger.info("Checking that MPLS state is on on r2-eth1")
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assertmsg = "r2, interface r2-eth1, mpls operational state is off, not expected"
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assert _check_mpls_state(tgen.gears["r2"], "r2-eth1"), assertmsg
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logger.info("Checking that MPLS state is off on r2-eth2")
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assertmsg = "r2, interface r2-eth2, mpls operational state is on, not expected"
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assert _check_mpls_state(tgen.gears["r2"], "r2-eth2", False), assertmsg
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if __name__ == "__main__":
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args = ["-s"] + sys.argv[1:]
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sys.exit(pytest.main(args))
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