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+#!/usr/bin/env python
+
+#
+# <template>.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.
+#
+
+"""
+<template>.py: Test <template>.
+"""
+
+import os
+import sys
+import pytest
+
+# Save the Current Working Directory to find configuration files.
+CWD = os.path.dirname(os.path.realpath(__file__))
+sys.path.append(os.path.join(CWD, "../"))
+
+# pylint: disable=C0413
+# Import topogen and topotest helpers
+from lib import topotest
+from lib.topogen import Topogen, TopoRouter, get_topogen
+from lib.topolog import logger
+
+# Required to instantiate the topology builder class.
+from mininet.topo import Topo
+
+
+# TODO: select markers based on daemons used during test
+# pytest module level markers
+"""
+pytestmark = pytest.mark.bfdd # single marker
+pytestmark = [
+ pytest.mark.bgpd,
+ pytest.mark.ospfd,
+ pytest.mark.ospf6d
+] # multiple markers
+"""
+
+
+class TemplateTopo(Topo):
+ "Test topology builder"
+
+ def build(self, *_args, **_opts):
+ "Build function"
+ tgen = get_topogen(self)
+
+ # This function only purpose is to define allocation and relationship
+ # between routers, switches and hosts.
+ #
+ # Example
+ #
+ # Create 2 routers
+ for routern in range(1, 3):
+ tgen.add_router("r{}".format(routern))
+
+ # Create a switch with just one router connected to it to simulate a
+ # empty network.
+ switch = tgen.add_switch("s1")
+ switch.add_link(tgen.gears["r1"])
+
+ # Create a connection between r1 and r2
+ switch = tgen.add_switch("s2")
+ switch.add_link(tgen.gears["r1"])
+ switch.add_link(tgen.gears["r2"])
+
+
+def setup_module(mod):
+ "Sets up the pytest environment"
+ # This function initiates the topology build with Topogen...
+ tgen = Topogen(TemplateTopo, mod.__name__)
+ # ... and here it calls Mininet initialization functions.
+ tgen.start_topology()
+
+ # This is a sample of configuration loading.
+ router_list = tgen.routers()
+
+ # For all registred routers, load the zebra configuration file
+ for rname, router in router_list.items():
+ router.load_config(
+ TopoRouter.RD_ZEBRA,
+ # Uncomment next line to load configuration from ./router/zebra.conf
+ # os.path.join(CWD, '{}/zebra.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_call_mininet_cli():
+ "Dummy test that just calls mininet CLI so we can interact with the build."
+ tgen = get_topogen()
+ # Don't run this test if we have any failure.
+ if tgen.routers_have_failure():
+ pytest.skip(tgen.errors)
+
+ logger.info("calling mininet CLI")
+ tgen.mininet_cli()
+
+
+# Memory leak test template
+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))