--- /dev/null
+#!/usr/bin/env python
+
+#
+# test_isis_topo1.py
+# Part of NetDEF Topology Tests
+#
+# Copyright (c) 2017 by
+# Network Device Education Foundation, Inc. ("NetDEF")
+#
+# Permission to use, copy, modify, and/or distribute this software
+# for any purpose with or without fee is hereby granted, provided
+# that the above copyright notice and this permission notice appear
+# in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
+# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+# OF THIS SOFTWARE.
+#
+
+"""
+test_isis_topo1.py: Test ISIS topology.
+"""
+
+import os
+import sys
+import pytest
+
+CWD = os.path.dirname(os.path.realpath(__file__))
+sys.path.append(os.path.join(CWD, '../'))
+
+# pylint: disable=C0413
+from lib import topotest
+from lib.topogen import Topogen, TopoRouter, get_topogen
+from lib.topolog import logger
+
+from mininet.topo import Topo
+
+
+class ISISTopo1(Topo):
+ "Simple two layer ISIS topology"
+ def build(self, *_args, **_opts):
+ "Build function"
+ tgen = get_topogen(self)
+
+ # Add ISIS routers:
+ # r1 r2
+ # | sw1 | sw2
+ # r3 r4
+ # | |
+ # sw3 sw4
+ # \ /
+ # r5
+ for routern in range(1, 6):
+ tgen.add_router('r{}'.format(routern))
+
+ # r1 <- sw1 -> r3
+ sw = tgen.add_switch('sw1')
+ sw.add_link(tgen.gears['r1'])
+ sw.add_link(tgen.gears['r3'])
+
+ # r2 <- sw2 -> r4
+ sw = tgen.add_switch('sw2')
+ sw.add_link(tgen.gears['r2'])
+ sw.add_link(tgen.gears['r4'])
+
+ # r3 <- sw3 -> r5
+ sw = tgen.add_switch('sw3')
+ sw.add_link(tgen.gears['r3'])
+ sw.add_link(tgen.gears['r5'])
+
+ # r4 <- sw4 -> r5
+ sw = tgen.add_switch('sw4')
+ sw.add_link(tgen.gears['r4'])
+ sw.add_link(tgen.gears['r5'])
+
+
+def setup_module(mod):
+ "Sets up the pytest environment"
+ tgen = Topogen(ISISTopo1, mod.__name__)
+ tgen.start_topology()
+
+ # For all registered routers, load the zebra configuration file
+ for rname, router in tgen.routers().iteritems():
+ router.load_config(
+ TopoRouter.RD_ZEBRA,
+ os.path.join(CWD, '{}/zebra.conf'.format(rname))
+ )
+ router.load_config(
+ TopoRouter.RD_ISIS,
+ os.path.join(CWD, '{}/isisd.conf'.format(rname))
+ )
+
+ # After loading the configurations, this function loads configured daemons.
+ tgen.start_router()
+
+
+def teardown_module(mod):
+ "Teardown the pytest environment"
+ tgen = get_topogen()
+
+ # This function tears down the whole topology.
+ tgen.stop_topology()
+
+
+def test_isis_convergence():
+ "Wait for the protocol to converge before starting to test"
+ tgen = get_topogen()
+ # Don't run this test if we have any failure.
+ if tgen.routers_have_failure():
+ pytest.skip(tgen.errors)
+
+ topotest.sleep(10, "waiting for ISIS protocol to converge")
+
+
+def test_memory_leak():
+ "Run the memory leak test and report results."
+ tgen = get_topogen()
+ if not tgen.is_memleak_enabled():
+ pytest.skip('Memory leak test/report is disabled')
+
+ tgen.report_memory_leaks()
+
+
+if __name__ == '__main__':
+ args = ["-s"] + sys.argv[1:]
+ sys.exit(pytest.main(args))
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