+++ /dev/null
-"""
-Test suite to automatically test emulator functionalities.
-Directly interacts with the emulator through the Mininet-like
-Python API.
-
-Does not test API endpoints. This is done in separated test suites.
-"""
-
-import unittest
-import os
-import time
-import subprocess
-import docker
-from dcemulator.net import DCNetwork
-from dcemulator.node import EmulatorCompute
-from mininet.node import Host, Controller, OVSSwitch, Docker
-from mininet.link import TCLink
-from mininet.topo import SingleSwitchTopo, LinearTopo
-from mininet.log import setLogLevel
-from mininet.util import quietRun
-from mininet.clean import cleanup
-
-
-class simpleTestTopology( unittest.TestCase ):
- """
- Helper class to do basic test setups.
- s1 -- s2 -- s3 -- ... -- sN
- """
-
- def __init__(self, *args, **kwargs):
- self.net = None
- self.s = [] # list of switches
- self.h = [] # list of hosts
- self.d = [] # list of docker containers
- self.dc = [] # list of data centers
- self.docker_cli = None
- super(simpleTestTopology, self).__init__(*args, **kwargs)
-
- def createNet(
- self,
- nswitches=0, ndatacenter=0, nhosts=0, ndockers=0,
- autolinkswitches=False):
- """
- Creates a Mininet instance and automatically adds some
- nodes to it.
- """
- self.net = net = DCNetwork()
-
- # add some switches
- for i in range(0, nswitches):
- self.s.append(self.net.addSwitch('s%d' % i))
- # if specified, chain all switches
- if autolinkswitches:
- for i in range(0, len(self.s) - 1):
- self.net.addLink(self.s[i], self.s[i + 1])
- # add some data centers
- for i in range(0, ndatacenter):
- self.dc.append(
- self.net.addDatacenter(
- 'datacenter%d' % i,
- metadata={"unittest_dc": i}))
- # add some hosts
- for i in range(0, nhosts):
- self.h.append(self.net.addHost('h%d' % i))
- # add some dockers
- for i in range(0, ndockers):
- self.d.append(self.net.addDocker('d%d' % i, dimage="ubuntu"))
-
- def startNet(self):
- self.net.start()
-
- def stopNet(self):
- self.net.stop()
-
- def getDockerCli(self):
- """
- Helper to interact with local docker instance.
- """
- if self.docker_cli is None:
- self.docker_cli = docker.Client(
- base_url='unix://var/run/docker.sock')
- return self.docker_cli
-
- def getDockernetContainers(self):
- """
- List the containers managed by dockernet
- """
- return self.getDockerCli().containers(filters={"label": "com.dockernet"})
-
- @staticmethod
- def setUp():
- pass
-
- @staticmethod
- def tearDown():
- cleanup()
- # make sure that all pending docker containers are killed
- with open(os.devnull, 'w') as devnull:
- subprocess.call(
- "sudo docker rm -f $(sudo docker ps --filter 'label=com.dockernet' -a -q)",
- stdout=devnull,
- stderr=devnull,
- shell=True)
-
-
-#@unittest.skip("disabled topology tests for development")
-class testEmulatorTopology( simpleTestTopology ):
- """
- Tests to check the topology API of the emulator.
- """
-
- def testSingleDatacenter(self):
- """
- Create a single data center and add check if its switch is up
- by using manually added hosts. Tests especially the
- data center specific addLink method.
- """
- # create network
- self.createNet(nswitches=0, ndatacenter=1, nhosts=2, ndockers=0)
- # setup links
- self.net.addLink(self.dc[0], self.h[0])
- self.net.addLink(self.h[1], self.dc[0])
- # start Mininet network
- self.startNet()
- # check number of running nodes
- assert(len(self.getDockernetContainers()) == 0)
- assert(len(self.net.hosts) == 2)
- assert(len(self.net.switches) == 1)
- # check connectivity by using ping
- assert(self.net.ping([self.h[0], self.h[1]]) <= 0.0)
- # stop Mininet network
- self.stopNet()
-
- def testMultipleDatacenterDirect(self):
- """
- Create a two data centers and interconnect them.
- """
- # create network
- self.createNet(nswitches=0, ndatacenter=2, nhosts=2, ndockers=0)
- # setup links
- self.net.addLink(self.dc[0], self.h[0])
- self.net.addLink(self.h[1], self.dc[1])
- self.net.addLink(self.dc[0], self.dc[1])
- # start Mininet network
- self.startNet()
- # check number of running nodes
- assert(len(self.getDockernetContainers()) == 0)
- assert(len(self.net.hosts) == 2)
- assert(len(self.net.switches) == 2)
- # check connectivity by using ping
- assert(self.net.ping([self.h[0], self.h[1]]) <= 0.0)
- # stop Mininet network
- self.stopNet()
-
- def testMultipleDatacenterWithIntermediateSwitches(self):
- """
- Create a two data centers and interconnect them with additional
- switches between them.
- """
- # create network
- self.createNet(
- nswitches=3, ndatacenter=2, nhosts=2, ndockers=0,
- autolinkswitches=True)
- # setup links
- self.net.addLink(self.dc[0], self.h[0])
- self.net.addLink(self.h[1], self.dc[1])
- self.net.addLink(self.dc[0], self.s[0])
- self.net.addLink(self.s[2], self.dc[1])
- # start Mininet network
- self.startNet()
- # check number of running nodes
- assert(len(self.getDockernetContainers()) == 0)
- assert(len(self.net.hosts) == 2)
- assert(len(self.net.switches) == 5)
- # check connectivity by using ping
- assert(self.net.ping([self.h[0], self.h[1]]) <= 0.0)
- # stop Mininet network
- self.stopNet()
-
-
-#@unittest.skip("disabled compute tests for development")
-class testEmulatorCompute( simpleTestTopology ):
- """
- Tests to check the emulator's API to add and remove
- compute resources at runtime.
- """
-
- def testAddSingleComputeSingleDC(self):
- """
- Adds a single compute instance to
- a single DC and checks its connectivity with a
- manually added host.
- """
- # create network
- self.createNet(nswitches=0, ndatacenter=1, nhosts=1, ndockers=0)
- # setup links
- self.net.addLink(self.dc[0], self.h[0])
- # start Mininet network
- self.startNet()
- # add compute resources
- vnf1 = self.dc[0].startCompute("vnf1")
- # check number of running nodes
- assert(len(self.getDockernetContainers()) == 1)
- assert(len(self.net.hosts) == 2)
- assert(len(self.net.switches) == 1)
- # check compute list result
- assert(len(self.dc[0].listCompute()) == 1)
- assert(isinstance(self.dc[0].listCompute()[0], EmulatorCompute))
- assert(self.dc[0].listCompute()[0].name == "vnf1")
- # check connectivity by using ping
- assert(self.net.ping([self.h[0], vnf1]) <= 0.0)
- # stop Mininet network
- self.stopNet()
-
- def testRemoveSingleComputeSingleDC(self):
- """
- Test stop method for compute instances.
- Check that the instance is really removed.
- """
- # create network
- self.createNet(nswitches=0, ndatacenter=1, nhosts=1, ndockers=0)
- # setup links
- self.net.addLink(self.dc[0], self.h[0])
- # start Mininet network
- self.startNet()
- # add compute resources
- vnf1 = self.dc[0].startCompute("vnf1")
- # check number of running nodes
- assert(len(self.getDockernetContainers()) == 1)
- assert(len(self.net.hosts) == 2)
- assert(len(self.net.switches) == 1)
- # check compute list result
- assert(len(self.dc[0].listCompute()) == 1)
- # check connectivity by using ping
- assert(self.net.ping([self.h[0], vnf1]) <= 0.0)
- # remove compute resources
- self.dc[0].stopCompute("vnf1")
- # check number of running nodes
- assert(len(self.getDockernetContainers()) == 0)
- assert(len(self.net.hosts) == 1)
- assert(len(self.net.switches) == 1)
- # check compute list result
- assert(len(self.dc[0].listCompute()) == 0)
- # stop Mininet network
- self.stopNet()
-
- def testGetStatusSingleComputeSingleDC(self):
- """
- Check if the getStatus functionality of EmulatorCompute
- objects works well.
- """
- # create network
- self.createNet(nswitches=0, ndatacenter=1, nhosts=1, ndockers=0)
- # setup links
- self.net.addLink(self.dc[0], self.h[0])
- # start Mininet network
- self.startNet()
- # add compute resources
- vnf1 = self.dc[0].startCompute("vnf1")
- # check number of running nodes
- assert(len(self.getDockernetContainers()) == 1)
- assert(len(self.net.hosts) == 2)
- assert(len(self.net.switches) == 1)
- # check compute list result
- assert(len(self.dc[0].listCompute()) == 1)
- assert(isinstance(self.dc[0].listCompute()[0], EmulatorCompute))
- assert(self.dc[0].listCompute()[0].name == "vnf1")
- # check connectivity by using ping
- assert(self.net.ping([self.h[0], vnf1]) <= 0.0)
- # check get status
- s = self.dc[0].containers.get("vnf1").getStatus()
- assert(s["name"] == "vnf1")
- assert(s["state"]["Running"])
- # stop Mininet network
- self.stopNet()
-
- def testConnectivityMultiDC(self):
- """
- Test if compute instances started in different data centers
- are able to talk to each other.
- """
- # create network
- self.createNet(
- nswitches=3, ndatacenter=2, nhosts=0, ndockers=0,
- autolinkswitches=True)
- # setup links
- self.net.addLink(self.dc[0], self.s[0])
- self.net.addLink(self.dc[1], self.s[2])
- # start Mininet network
- self.startNet()
- # add compute resources
- vnf1 = self.dc[0].startCompute("vnf1")
- vnf2 = self.dc[1].startCompute("vnf2")
- # check number of running nodes
- assert(len(self.getDockernetContainers()) == 2)
- assert(len(self.net.hosts) == 2)
- assert(len(self.net.switches) == 5)
- # check compute list result
- assert(len(self.dc[0].listCompute()) == 1)
- assert(len(self.dc[1].listCompute()) == 1)
- # check connectivity by using ping
- assert(self.net.ping([vnf1, vnf2]) <= 0.0)
- # stop Mininet network
- self.stopNet()
-
- def testInterleavedAddRemoveMultiDC(self):
- """
- Test multiple, interleaved add and remove operations and ensure
- that always all expected compute instances are reachable.
- """
- # create network
- self.createNet(
- nswitches=3, ndatacenter=2, nhosts=0, ndockers=0,
- autolinkswitches=True)
- # setup links
- self.net.addLink(self.dc[0], self.s[0])
- self.net.addLink(self.dc[1], self.s[2])
- # start Mininet network
- self.startNet()
- # add compute resources
- vnf1 = self.dc[0].startCompute("vnf1")
- vnf2 = self.dc[1].startCompute("vnf2")
- # check number of running nodes
- assert(len(self.getDockernetContainers()) == 2)
- assert(len(self.net.hosts) == 2)
- assert(len(self.net.switches) == 5)
- # check compute list result
- assert(len(self.dc[0].listCompute()) == 1)
- assert(len(self.dc[1].listCompute()) == 1)
- # check connectivity by using ping
- assert(self.net.ping([vnf1, vnf2]) <= 0.0)
- # remove compute resources
- self.dc[0].stopCompute("vnf1")
- # check number of running nodes
- assert(len(self.getDockernetContainers()) == 1)
- assert(len(self.net.hosts) == 1)
- assert(len(self.net.switches) == 5)
- # check compute list result
- assert(len(self.dc[0].listCompute()) == 0)
- assert(len(self.dc[1].listCompute()) == 1)
- # add compute resources
- vnf3 = self.dc[0].startCompute("vnf3")
- vnf4 = self.dc[0].startCompute("vnf4")
- # check compute list result
- assert(len(self.dc[0].listCompute()) == 2)
- assert(len(self.dc[1].listCompute()) == 1)
- assert(self.net.ping([vnf3, vnf2]) <= 0.0)
- assert(self.net.ping([vnf4, vnf2]) <= 0.0)
- # remove compute resources
- self.dc[0].stopCompute("vnf3")
- self.dc[0].stopCompute("vnf4")
- self.dc[1].stopCompute("vnf2")
- # check compute list result
- assert(len(self.dc[0].listCompute()) == 0)
- assert(len(self.dc[1].listCompute()) == 0)
- # stop Mininet network
- self.stopNet()
-
-if __name__ == '__main__':
- unittest.main()
projects / osm / vim-emu.git / blobdiff