TestON/tests/FUNC/FUNCoptical/FUNCoptical.py

# Testing the basic intent functionality of ONOS

class FUNCoptical:

    def __init__( self ):
        self.default = ''

    def CASE1( self, main ):
        import time
        import imp
        import re

        """
        - Construct tests variables
        - GIT ( optional )
            - Checkout ONOS master branch
            - Pull latest ONOS code
        - Building ONOS ( optional )
            - Install ONOS package
            - Build ONOS package
        """

        main.case( "Constructing test variables and building ONOS package" )
        main.step( "Constructing test variables" )
        main.caseExplanation = "This test case is mainly for loading " +\
                               "from params file, and pull and build the " +\
                               " latest ONOS package"
        stepResult = main.FALSE

        # Test variables
        try:
            main.testOnDirectory = re.sub( "(/tests)$", "", main.testDir )
            main.apps = main.params[ 'ENV' ][ 'cellApps' ]
            gitBranch = main.params[ 'GIT' ][ 'branch' ]
            main.dependencyPath = main.testOnDirectory + \
                                  main.params[ 'DEPENDENCY' ][ 'path' ]
            main.scale = ( main.params[ 'SCALE' ][ 'size' ] ).split( "," )
            if main.ONOSbench.maxNodes:
                main.maxNodes = int( main.ONOSbench.maxNodes )
            else:
                main.maxNodes = 0
            wrapperFile1 = main.params[ 'DEPENDENCY' ][ 'wrapper1' ]
            main.startUpSleep = int( main.params[ 'SLEEP' ][ 'startup' ] )
            main.checkIntentSleep = int( main.params[ 'SLEEP' ][ 'checkintent' ] )
            main.checkTopoAttempts = int( main.params[ 'SLEEP' ][ 'topoAttempts' ] )
            gitPull = main.params[ 'GIT' ][ 'pull' ]
            main.switches = int( main.params[ 'MININET' ][ 'switch' ] )
            main.links = int( main.params[ 'MININET' ][ 'links' ] )
            main.hosts = int( main.params[ 'MININET' ][ 'hosts' ] )
            main.opticalTopo = main.params[ 'MININET' ][ 'toponame' ]
            main.cellData = {} # For creating cell file
            main.hostsData = {}
            main.CLIs = []
            main.ONOSip = []  # List of IPs of active ONOS nodes. CASE 2
            main.activeONOSip = []
            main.assertReturnString = ''  # Assembled assert return string
            main.cycle = 0 # How many times FUNCintent has run through its tests

            main.ONOSip = main.ONOSbench.getOnosIps()

            # Assigning ONOS cli handles to a list
            for i in range( 1,  main.maxNodes + 1 ):
                main.CLIs.append( getattr( main, 'ONOScli' + str( i ) ) )

            # -- INIT SECTION, ONLY RUNS ONCE -- #
            main.topo = imp.load_source( wrapperFile1,
                                         main.dependencyPath +
                                         wrapperFile1 +
                                         ".py" )
            if main.CLIs:
                stepResult = main.TRUE
            else:
                main.log.error( "Did not properly created list of ONOS CLI handle" )
                stepResult = main.FALSE
        except Exception as e:
            main.log.exception(e)
            main.cleanup()
            main.exit()

        utilities.assert_equals( expect=main.TRUE,
                                 actual=stepResult,
                                 onpass="Successfully construct " +
                                        "test variables ",
                                 onfail="Failed to construct test variables" )

        if gitPull == 'True':
            main.step( "Building ONOS in " + gitBranch + " branch" )
            onosBuildResult = main.startUp.onosBuild( main, gitBranch )
            stepResult = onosBuildResult
            utilities.assert_equals( expect=main.TRUE,
                                     actual=stepResult,
                                     onpass="Successfully compiled " +
                                            "latest ONOS",
                                     onfail="Failed to compile " +
                                            "latest ONOS" )
        else:
            main.log.warn( "Did not pull new code so skipping mvn " +
                           "clean install" )
        main.ONOSbench.getVersion( report=True )

    def CASE2( self, main ):
        """
        - Set up cell
            - Create cell file
            - Set cell file
            - Verify cell file
        - Kill ONOS process
        - Uninstall ONOS cluster
        - Verify ONOS start up
        - Install ONOS cluster
        - Connect to cli
        """

        main.cycle += 1

        # main.scale[ 0 ] determines the current number of ONOS controller
        main.numCtrls = int( main.scale[ 0 ] )
        main.flowCompiler = "Flow Rules"

        main.case( "Starting up " + str( main.numCtrls ) +
                   " node(s) ONOS cluster" )
        main.caseExplanation = "Set up ONOS with " + str( main.numCtrls ) +\
                                " node(s) ONOS cluster"



        #kill off all onos processes
        main.log.info( "Safety check, killing all ONOS processes" +
                       " before initiating environment setup" )

        for i in range( main.maxNodes ):
            main.ONOSbench.onosDie( main.ONOSip[ i ] )

        print "NODE COUNT = ", main.numCtrls

        tempOnosIp = []
        for i in range( main.numCtrls ):
            tempOnosIp.append( main.ONOSip[i] )

        main.ONOSbench.createCellFile( main.ONOSbench.ip_address,
                                       "temp", main.Mininet1.ip_address,
                                       main.apps, tempOnosIp )

        main.step( "Apply cell to environment" )
        cellResult = main.ONOSbench.setCell( "temp" )
        verifyResult = main.ONOSbench.verifyCell()
        stepResult = cellResult and verifyResult
        utilities.assert_equals( expect=main.TRUE,
                                 actual=stepResult,
                                 onpass="Successfully applied cell to " + \
                                        "environment",
                                 onfail="Failed to apply cell to environment " )

        main.step( "Creating ONOS package" )
        packageResult = main.ONOSbench.buckBuild()
        stepResult = packageResult
        utilities.assert_equals( expect=main.TRUE,
                                 actual=stepResult,
                                 onpass="Successfully created ONOS package",
                                 onfail="Failed to create ONOS package" )

        time.sleep( main.startUpSleep )
        main.step( "Uninstalling ONOS package" )
        onosUninstallResult = main.TRUE
        for ip in main.ONOSip:
            onosUninstallResult = onosUninstallResult and \
                    main.ONOSbench.onosUninstall( nodeIp=ip )
        stepResult = onosUninstallResult
        utilities.assert_equals( expect=main.TRUE,
                                 actual=stepResult,
                                 onpass="Successfully uninstalled ONOS package",
                                 onfail="Failed to uninstall ONOS package" )

        time.sleep( main.startUpSleep )
        main.step( "Installing ONOS package" )
        onosInstallResult = main.TRUE
        for i in range( main.numCtrls ):
            onosInstallResult = onosInstallResult and \
                    main.ONOSbench.onosInstall( node=main.ONOSip[ i ] )
            # Populate activeONOSip
            main.activeONOSip.append( main.ONOSip[ i ] )
        stepResult = onosInstallResult
        utilities.assert_equals( expect=main.TRUE,
                                 actual=stepResult,
                                 onpass="Successfully installed ONOS package",
                                 onfail="Failed to install ONOS package" )

        main.step( "Set up ONOS secure SSH" )
        secureSshResult = main.TRUE
        for i in range( int( main.numCtrls ) ):
            secureSshResult = secureSshResult and main.ONOSbench.onosSecureSSH( node=main.ONOSip[i] )
        utilities.assert_equals( expect=main.TRUE, actual=secureSshResult,
                                 onpass="Test step PASS",
                                 onfail="Test step FAIL" )

        time.sleep( main.startUpSleep )
        main.step( "Starting ONOS service" )
        stopResult = main.TRUE
        startResult = main.TRUE
        onosIsUp = main.TRUE

        for i in range( main.numCtrls ):
            isUp = main.ONOSbench.isup( main.ONOSip[ i ] )
            onosIsUp = onosIsUp and isUp
            if isUp == main.TRUE:
                main.log.report( "ONOS instance {0} is up and ready".format( i + 1 ) )
            else:
                main.log.report( "ONOS instance {0} may not be up, stop and ".format( i + 1 ) +
                                 "start ONOS again " )
                stopResult = stopResult and main.ONOSbench.onosStop( main.ONOSip[ i ] )
                startResult = startResult and main.ONOSbench.onosStart( main.ONOSip[ i ] )
                if not startResult or stopResult:
                    main.log.report( "ONOS instance {0} did not start correctly.".format( i + 1) )
        stepResult = onosIsUp and stopResult and startResult
        utilities.assert_equals( expect=main.TRUE,
                                 actual=stepResult,
                                 onpass="ONOS service is ready on all nodes",
                                 onfail="ONOS service did not start properly on all nodes" )

        main.step( "Start ONOS cli" )
        cliResult = main.TRUE
        for i in range( main.numCtrls ):
            cliResult = cliResult and \
                        main.CLIs[ i ].startOnosCli( main.ONOSip[ i ] )
        stepResult = cliResult
        utilities.assert_equals( expect=main.TRUE,
                                 actual=stepResult,
                                 onpass="Successfully start ONOS cli",
                                 onfail="Failed to start ONOS cli" )

        # Remove the first element in main.scale list
        main.scale.remove( main.scale[ 0 ] )

    def CASE10( self, main ):
        """
            Start Mininet opticalTest Topology
        """
        main.case( "Mininet with Linc-OE startup")
        main.caseExplanation = "Start opticalTest.py topology included with ONOS"
        if main.opticalTopo:
            main.step( "Copying optical topology to $ONOS_ROOT/tools/test/topos/" )
            main.ONOSbench.scp( main.ONOSbench,
                                "{0}{1}.py".format( main.dependencyPath, main.opticalTopo ),
                                "~/onos/tools/test/topos/{0}.py".format( main.opticalTopo ) )
        main.step( "Starting mininet and LINC-OE" )
        topoResult = main.TRUE
        time.sleep( 10 )
        controllerIPs = ' '.join( main.activeONOSip )
        opticalMnScript = main.LincOE.runOpticalMnScript(ctrllerIP = controllerIPs, topology=main.opticalTopo )
        topoResult = opticalMnScript
        utilities.assert_equals(
            expect=main.TRUE,
            actual=topoResult,
            onpass="Started the topology successfully ",
            onfail="Failed to start the topology")

        main.step( "Push Topology.json to ONOS through onos-netcfg" )
        pushResult = main.TRUE
        time.sleep( 20 )
        main.ONOSbench.onosNetCfg( controllerIps=controllerIPs, path=main.dependencyPath, fileName="Topology" )

        # Exit if topology did not load properly
        if not topoResult:
            main.cleanup()
            main.exit()




    def CASE14( self, main ):
        """
            Stop mininet
        """
        main.log.report( "Stop Mininet topology" )
        main.case( "Stop Mininet topology" )
        main.caseExplanation = "Stopping the current mininet topology " +\
                                "to start up fresh"

        main.step( "Stopping Mininet Topology" )
        topoResult = main.LincOE.stopNet( timeout=180 )
        utilities.assert_equals( expect=main.TRUE,
                                 actual=topoResult,
                                 onpass="Successfully stopped mininet",
                                 onfail="Failed to stopped mininet" )
        # Exit if topology did not load properly
        if not topoResult:
            main.cleanup()
            main.exit()

    def CASE16( self, main ):
        """
            Balance Masters
        """
        main.case( "Balance mastership of switches" )
        main.step( "Balancing mastership of switches" )

        balanceResult = main.FALSE
        balanceResult = utilities.retry( f=main.CLIs[ 0 ].balanceMasters, retValue=main.FALSE, args=[] )

        utilities.assert_equals( expect=main.TRUE,
                                 actual=balanceResult,
                                 onpass="Successfully balanced mastership of switches",
                                 onfail="Failed to balance mastership of switches" )
        if not balanceResult:
            main.initialized = main.FALSE

    def CASE17( self, main ):
        """
            Use Flow Objectives
        """
        main.case( "Enable intent compilation using Flow Objectives" )
        main.step( "Enabling Flow Objectives" )

        main.flowCompiler = "Flow Objectives"

        cmd = "org.onosproject.net.intent.impl.compiler.IntentConfigurableRegistrator"

        stepResult = main.CLIs[ 0 ].setCfg( component=cmd,
                                            propName="useFlowObjectives", value="true" )
        stepResult &= main.CLIs[ 0 ].setCfg( component=cmd,
                                             propName="defaultFlowObjectiveCompiler",
                                             value='org.onosproject.net.intent.impl.compiler.LinkCollectionIntentObjectiveCompiler')

        utilities.assert_equals( expect=main.TRUE,
                                 actual=stepResult,
                                 onpass="Successfully activated Flow Objectives",
                                 onfail="Failed to activate Flow Objectives" )

    def CASE19( self, main ):
        """
            Copy the karaf.log files after each testcase cycle
        """
        main.log.report( "Copy karaf logs" )
        main.case( "Copy karaf logs" )
        main.caseExplanation = "Copying the karaf logs to preserve them through" +\
                               "reinstalling ONOS"
        main.step( "Copying karaf logs" )
        stepResult = main.TRUE
        scpResult = main.TRUE
        copyResult = main.TRUE
        for i in range( main.numCtrls ):
            main.node = main.CLIs[ i ]
            ip = main.ONOSip[ i ]
            main.node.ip_address = ip
            scpResult = scpResult and main.ONOSbench.scp( main.node ,
                                            "/opt/onos/log/karaf.log",
                                            "/tmp/karaf.log",
                                            direction="from" )
            copyResult = copyResult and main.ONOSbench.cpLogsToDir( "/tmp/karaf.log", main.logdir,
                                                                    copyFileName=( "karaf.log.node{0}.cycle{1}".format( str( i + 1 ), str( main.cycle ) ) ) )
            if scpResult and copyResult:
                stepResult =  main.TRUE and stepResult
            else:
                stepResult = main.FALSE and stepResult
        utilities.assert_equals( expect=main.TRUE,
                                 actual=stepResult,
                                 onpass="Successfully copied remote ONOS logs",
                                 onfail="Failed to copy remote ONOS logs" )

    def CASE21( self,main ):
        """
            Run pingall to discover all hosts
        """
        main.case( "Running Pingall" )
        main.caseExplanation = "Use pingall to discover all hosts. Pingall is expected to fail."
        main.step( "Discover Hosts through Pingall" )
        pingResult = main.LincOE.pingall( timeout = 120 )

        utilities.assert_equals( expect=main.FALSE,
                                 actual=pingResult,
                                 onpass="Pingall Completed",
                                 onfail="Pingall did not complete or did not return fales" )

    def CASE22( self,main ):
        """
            Send arpings to discover all hosts
        """
        main.case( "Discover Hosts with arping" )
        main.caseExplanation = "Send arpings between all the hosts to discover and verify them"

        main.step( "Send arping between all hosts" )

        hosts = []
        for i in range( main.hosts ):
            hosts.append( 'h{}'.format( i + 1 ) )

        arpingHostResults = main.TRUE
        for host in hosts:
            if main.LincOE.arping( host ):
                main.log.info( "Successfully reached host {} with arping".format( host ) )
            else:
                main.log.error( "Could not reach host {} with arping".format( host ) )
                arpingHostResults = main.FALSE

        utilities.assert_equals( expect=main.TRUE,
                                 actual=arpingHostResults,
                                 onpass="Successfully discovered all hosts",
                                 onfail="Could not descover some hosts" )

    def CASE23( self, main ):
        """
        Compare ONOS Topology to Mininet Topology
        """
        import json

        main.case( "Compare ONOS Topology view to Mininet topology" )
        main.caseExplanation = "Compare topology elements between Mininet" +\
                                " and ONOS"

        main.log.info( "Gathering topology information from Mininet" )
        devicesResults = main.FALSE  # Overall Boolean for device correctness
        linksResults = main.FALSE  # Overall Boolean for link correctness
        hostsResults = main.FALSE  # Overall Boolean for host correctness
        deviceFails = []  # Nodes where devices are incorrect
        linkFails = []  # Nodes where links are incorrect
        hostFails = []  # Nodes where hosts are incorrect
        attempts = main.checkTopoAttempts  # Remaining Attempts

        mnSwitches = main.switches
        mnLinks = main.links
        mnHosts = main.hosts

        main.step( "Comparing Mininet topology to ONOS topology" )

        while ( attempts >= 0 ) and\
            ( not devicesResults or not linksResults or not hostsResults ):
            time.sleep( 2 )
            if not devicesResults:
                devices = main.topo.getAllDevices( main )
                ports = main.topo.getAllPorts( main )
                devicesResults = main.TRUE
                deviceFails = []  # Reset for each attempt
            if not linksResults:
                links = main.topo.getAllLinks( main )
                linksResults = main.TRUE
                linkFails = []  # Reset for each attempt
            if not hostsResults:
                hosts = main.topo.getAllHosts( main )
                hostsResults = main.TRUE
                hostFails = []  # Reset for each attempt

            #  Check for matching topology on each node
            for controller in range( main.numCtrls ):
                controllerStr = str( controller + 1 )  # ONOS node number
                # Compare Devices
                if devices[ controller ] and ports[ controller ] and\
                    "Error" not in devices[ controller ] and\
                    "Error" not in ports[ controller ]:

                    try:
                        deviceData = json.loads( devices[ controller ] )
                        portData = json.loads( ports[ controller ] )
                    except (TypeError,ValueError):
                        main.log.error("Could not load json:" + str( devices[ controller ] ) + ' or ' + str( ports[ controller ] ))
                        currentDevicesResult = main.FALSE
                    else:
                        if mnSwitches == len( deviceData ):
                            currentDevicesResult = main.TRUE
                        else:
                            currentDevicesResult = main.FALSE
                            main.log.error( "Node {} only sees {} device(s) but {} exist".format(
                                controllerStr,len( deviceData ),mnSwitches ) )
                else:
                    currentDevicesResult = main.FALSE
                if not currentDevicesResult:
                    deviceFails.append( controllerStr )
                devicesResults = devicesResults and currentDevicesResult
                # Compare Links
                if links[ controller ] and "Error" not in links[ controller ]:
                    try:
                        linkData = json.loads( links[ controller ] )
                    except (TypeError,ValueError):
                        main.log.error("Could not load json:" + str( links[ controller ] ) )
                        currentLinksResult = main.FALSE
                    else:
                        if mnLinks == len( linkData ):
                            currentLinksResult = main.TRUE
                        else:
                            currentLinksResult = main.FALSE
                            main.log.error( "Node {} only sees {} link(s) but {} exist".format(
                                controllerStr,len( linkData ),mnLinks ) )
                else:
                    currentLinksResult = main.FALSE
                if not currentLinksResult:
                    linkFails.append( controllerStr )
                linksResults = linksResults and currentLinksResult
                # Compare Hosts
                if hosts[ controller ] and "Error" not in hosts[ controller ]:
                    try:
                        hostData = json.loads( hosts[ controller ] )
                    except (TypeError,ValueError):
                        main.log.error("Could not load json:" + str( hosts[ controller ] ) )
                        currentHostsResult = main.FALSE
                    else:
                        if mnHosts == len( hostData ):
                            currentHostsResult = main.TRUE
                        else:
                            currentHostsResult = main.FALSE
                            main.log.error( "Node {} only sees {} host(s) but {} exist".format(
                                controllerStr,len( hostData ),mnHosts ) )
                else:
                    currentHostsResult = main.FALSE
                if not currentHostsResult:
                    hostFails.append( controllerStr )
                hostsResults = hostsResults and currentHostsResult
            # Decrement Attempts Remaining
            attempts -= 1

        utilities.assert_equals( expect=[],
                                 actual=deviceFails,
                                 onpass="ONOS correctly discovered all devices",
                                 onfail="ONOS incorrectly discovered devices on nodes: " +
                                 str( deviceFails ) )
        utilities.assert_equals( expect=[],
                                 actual=linkFails,
                                 onpass="ONOS correctly discovered all links",
                                 onfail="ONOS incorrectly discovered links on nodes: " +
                                 str( linkFails ) )
        utilities.assert_equals( expect=[],
                                 actual=hostFails,
                                 onpass="ONOS correctly discovered all hosts",
                                 onfail="ONOS incorrectly discovered hosts on nodes: " +
                                 str( hostFails ) )
        if hostsResults and linksResults and devicesResults:
            topoResults = main.TRUE
        else:
            topoResults = main.FALSE
        utilities.assert_equals( expect=main.TRUE,
                                 actual=topoResults,
                                 onpass="ONOS correctly discovered the topology",
                                 onfail="ONOS incorrectly discovered the topology" )


    def CASE31( self, main ):
        import time
        """
            Add bidirectional point intents between 2 packet layer( mininet )
            devices and ping mininet hosts
        """
        main.log.report(
            "This testcase adds bidirectional point intents between 2 " +
            "packet layer( mininet ) devices and ping mininet hosts" )
        main.case( "Install point intents between 2 packet layer device and " +
                   "ping the hosts" )
        main.caseExplanation = "This testcase adds bidirectional point intents between 2 " +\
            "packet layer( mininet ) devices and ping mininet hosts"

        main.step( "Adding point intents" )
        checkFlowResult = main.TRUE
        main.pIntentsId = []
        pIntent1 = main.CLIs[ 0 ].addPointIntent(
            "of:0000000000000001/1",
            "of:0000000000000002/1" )
        time.sleep( 10 )
        pIntent2 = main.CLIs[ 0 ].addPointIntent(
            "of:0000000000000002/1",
            "of:0000000000000001/1" )
        main.pIntentsId.append( pIntent1 )
        main.pIntentsId.append( pIntent2 )
        time.sleep( 10 )
        main.log.info( "Checking intents state")
        checkStateResult = main.CLIs[ 0 ].checkIntentState(
                                                  intentsId = main.pIntentsId )
        time.sleep( 10 )
        main.log.info( "Checking flows state")
        checkFlowResult = main.CLIs[ 0 ].checkFlowsState()
        # Sleep for 10 seconds to provide time for the intent state to change
        time.sleep( 10 )
        main.log.info( "Checking intents state one more time")
        checkStateResult = main.CLIs[ 0 ].checkIntentState(
                                                  intentsId = main.pIntentsId )

        if checkStateResult and checkFlowResult:
            addIntentsResult = main.TRUE
        else:
            addIntentsResult = main.FALSE
        utilities.assert_equals(
            expect=main.TRUE,
            actual=addIntentsResult,
            onpass="Successfully added point intents",
            onfail="Failed to add point intents")

        pingResult = main.FALSE

        if not addIntentsResult:
            main.log.error( "Intents were not properly installed. Skipping ping." )

        else:
            main.step( "Ping h1 and h2" )
            pingResult = main.LincOE.pingHostOptical( src="h1", target="h2" )
        utilities.assert_equals(
            expect=main.TRUE,
            actual=pingResult,
            onpass="Successfully pinged h1 and h2",
            onfail="Failed to ping between h1 and h2")

        main.step( "Remove Point to Point intents" )
        removeResult = main.FALSE
        # Check remaining intents
        try:
            intentsJson = json.loads( main.CLIs[ 0 ].intents() )
            main.log.debug( intentsJson )
            main.CLIs[ 0 ].removeIntent( intentId=pIntent1, purge=True )
            main.CLIs[ 0 ].removeIntent( intentId=pIntent2, purge=True )
            for intents in intentsJson:
                main.CLIs[ 0 ].removeIntent( intentId=intents.get( 'id' ),
                                             app='org.onosproject.cli',
                                             purge=True )
                time.sleep( 15 )

            for i in range( main.numCtrls ):
                if len( json.loads( main.CLIs[ i ].intents() ) ):
                    print json.loads( main.CLIs[ i ].intents() )
                    removeResult = main.FALSE
                else:
                    removeResult = main.TRUE
        except ( TypeError, ValueError ):
            main.log.error( "Cannot see intents on Node " + str( main.CLIs[ 0 ] ) +\
                            ".  Removing all intents.")
            main.CLIs[ 0 ].removeAllIntents( purge=True )
            main.CLIs[ 0 ].removeAllIntents( purge=True, app='org.onosproject.cli')

        utilities.assert_equals( expect=main.TRUE,
                                 actual=removeResult,
                                 onpass="Successfully removed host intents",
                                 onfail="Failed to remove host intents" )

    def CASE32( self ):
        """
            Add host intents between 2 packet layer host
        """
        import time
        import json
        main.log.report( "Adding host intents between 2 optical layer host" )
        main.case( "Test add host intents between optical layer host" )
        main.caseExplanation = "Test host intents between 2 optical layer host"

        main.step( "Creating list of hosts" )
        hostnum = 0
        try:
            hostData = json.loads( hosts[ controller ] )
        except( TypeError, ValueError ):
            main.log.error("Could not load json:" + str( hosts[ controller ] ) )

        main.step( "Adding host intents to h1 and h2" )
        hostId = []
        # Listing host MAC addresses
        for host in hostData:
            hostId.append( host.get("id") )
        host1 = hostId[ 0 ]
        host2 = hostId[ 1 ]
        main.log.debug( host1 )
        main.log.debug( host2 )

        intentsId = []
        intent1 = main.CLIs[ 0 ].addHostIntent( hostIdOne = host1,
                                            hostIdTwo = host2 )
        intentsId.append( intent1 )
        # Checking intents state before pinging
        main.log.info( "Checking intents state" )
        intentResult = utilities.retry( f=main.CLIs[ 0 ].checkIntentState,
                                        retValue=main.FALSE, args=intentsId,
                                        sleep=main.checkIntentSleep, attempts=10 )

        # If intent state is still wrong, display intent states
        if not intentResult:
            main.log.error( main.CLIs[ 0 ].intents() )

        utilities.assert_equals( expect=main.TRUE,
                                 actual=intentResult,
                                 onpass="All intents are in INSTALLED state ",
                                 onfail="Some of the intents are not in " +
                                        "INSTALLED state " )

        if not intentResult:
            main.log.error( "Intents were not properly installed. Skipping Ping" )
        else:
            # Pinging h1 to h2 and then ping h2 to h1
            main.step( "Pinging h1 and h2" )
            pingResult = main.TRUE
            pingResult = main.LincOE.pingHostOptical( src="h1", target="h2" ) \
                and main.LincOE.pingHostOptical( src="h2",target="h1" )

            utilities.assert_equals( expect=main.TRUE,
                                     actual=pingResult,
                                     onpass="Pinged successfully between h1 and h2",
                                     onfail="Pinged failed between h1 and h2" )

        # Removed all added host intents
        main.step( "Removing host intents" )
        removeResult = main.TRUE
        # Check remaining intents
        try:
            intentsJson = json.loads( main.CLIs[ 0 ].intents() )
            main.CLIs[ 0 ].removeIntent( intentId=intent1, purge=True )
            #main.CLIs[ 0 ].removeIntent( intentId=intent2, purge=True )
            main.log.debug(intentsJson)
            for intents in intentsJson:
                main.CLIs[ 0 ].removeIntent( intentId=intents.get( 'id' ),
                                             app='org.onosproject.optical',
                                             purge=True )
            time.sleep( 15 )

            for i in range( main.numCtrls ):
                if len( json.loads( main.CLIs[ i ].intents() ) ):
                    print json.loads( main.CLIs[ i ].intents() )
                    removeResult = main.FALSE
                else:
                    removeResult = main.TRUE
        except ( TypeError, ValueError ):
            main.log.error( "Cannot see intents on Node " + str( main.CLIs[ 0 ] ) +\
                            ".  Removing all intents.")
            main.CLIs[ 0 ].removeAllIntents( purge=True )
            main.CLIs[ 0 ].removeAllIntents( purge=True, app='org.onosproject.optical')

        utilities.assert_equals( expect=main.TRUE,
                                 actual=removeResult,
                                 onpass="Successfully removed host intents",
                                 onfail="Failed to remove host intents" )