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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
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.iteritems():
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))
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