"""

Copyright 2016 Open Networking Foundation (ONF)

Please refer questions to either the onos test mailing list at <onos-test@onosproject.org>,
the System Testing Plans and Results wiki page at <https://wiki.onosproject.org/x/voMg>,
or the System Testing Guide page at <https://wiki.onosproject.org/x/WYQg>

    TestON is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 2 of the License, or
    (at your option) any later version.

    TestON is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with TestON.  If not, see <http://www.gnu.org/licenses/>.

**** Scripted by Antony Silvester  - antony.silvester@huawei.com ******


This Test check the bgp_ls functionality

List of test cases:
CASE1: Compile ONOS and push it to the test machines
CASE2: Discovery the topology using BGPLS
CASE3: Addition of new Node to existing topology
CASE4: Verification of Links thats is discovered"
CASE5: Deletion of Links
Case6: Uninstalling the app


"""
class FUNCbgpls:

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

    def CASE1( self, main ):
        """
        CASE1 is to compile ONOS and push it to the test machines

        Startup sequence:
        cell <name>
        onos-verify-cell
        NOTE: temporary - onos-remove-raft-logs
        onos-uninstall
        git pull
        onos-package
        onos-install -f
        onos-wait-for-start
        start cli sessions
        start BGPLS apps

        """
        import os

        main.log.info( "ONOS Single node start " +
                         "Scapy Tool - initialization" )
        main.case( "Setting up test environment" )
        main.caseExplanation = "Setup the test environment including " +\
                                "installing ONOS, start ONOS."

        PULLCODE = False
        if main.params[ 'GIT' ][ 'pull' ] == 'True':
            PULLCODE = True
        gitBranch = main.params[ 'GIT' ][ 'branch' ]
        cellName = main.params[ 'ENV' ][ 'cellName' ]
        ipList = os.getenv( main.params[ 'CTRL' ][ 'ip1' ] )
        scapy_ip = os.getenv( main.params[ 'SCAPY' ][ 'HOSTNAMES' ] )

        main.log.info( "Removing raft logs" )
        main.ONOSbench.onosRemoveRaftLogs()

        main.CLIs = []
        main.nodes = []
        main.numCtrls = 1

        for i in range( 1, main.numCtrls + 1 ):
            try:
                main.CLIs.append( getattr( main, 'ONOScli' + str( i ) ) )
                main.nodes.append( getattr( main, 'ONOS' + str( i ) ) )
                ipList.append( main.nodes[ -1 ].ip_address )
            except AttributeError:
                break

        main.log.info( "Uninstalling ONOS" )
        for node in main.nodes:
            main.ONOSbench.onosUninstall( node.ip_address )

        main.step( "Create cell file" )
        cellAppString = main.params[ 'ENV' ][ 'cellApps' ]

        main.ONOSbench.createCellFile( main.ONOSbench.ip_address, cellName,
                                       scapy_ip,
                                       cellAppString, ipList, main.ONOScli1.karafUser )

        main.step( "Applying cell variable to environment" )
        cellResult = main.ONOSbench.setCell( cellName )

        verifyResult = main.ONOSbench.verifyCell()

        # Make sure ONOS process is not running
        main.log.info( "Killing any ONOS processes" )
        killResults = main.TRUE
        for node in main.nodes:
            killed = main.ONOSbench.onosKill( node.ip_address )
            killResults = killResults and killed

        gitPullResult = main.FALSE
        main.step( "Git checkout and pull" + gitBranch )
        if PULLCODE:
            main.ONOSbench.gitCheckout( gitBranch )
            gitPullResult = main.ONOSbench.gitPull()
            # values of 1 or 3 are good
            utilities.assert_lesser( expect=0, actual=gitPullResult,
                                      onpass="Git pull successful",
                                      onfail="Git pull failed" )

        main.ONOSbench.getVersion( report=True )

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

        main.step( "Installing ONOS package" )
        onosInstallResult = main.ONOSbench.onosInstall(
                options="-f", node=main.nodes[ 0 ].ip_address )
        utilities.assert_equals( expect=main.TRUE, actual=onosInstallResult,
                                 onpass="ONOS install successful",
                                 onfail="ONOS install failed" )

        main.step( "Set up ONOS secure SSH" )
        secureSshResult = main.ONOSbench.onosSecureSSH( node=main.nodes[ 0 ].ip_address )
        utilities.assert_equals( expect=main.TRUE, actual=secureSshResult,
                                     onpass="Test step PASS",
                                     onfail="Test step FAIL" )

        main.step( "Checking if ONOS is up yet" )
        print main.nodes[ 0 ].ip_address
        for i in range( 2 ):
            onos1Isup = main.ONOSbench.isup( main.nodes[ 0 ].ip_address )
            if onos1Isup:
                break
        utilities.assert_equals( expect=main.TRUE, actual=onos1Isup,
                                 onpass="ONOS startup successful",
                                 onfail="ONOS startup failed" )

        main.step( "Starting ONOS CLI sessions" )
        print main.nodes[ 0 ].ip_address
        cliResults = main.ONOScli1.startOnosCli( main.nodes[ 0 ].ip_address )
        utilities.assert_equals( expect=main.TRUE, actual=cliResults,
                                 onpass="ONOS cli startup successful",
                                 onfail="ONOS cli startup failed" )

        main.step( "App Ids check" )
        appCheck = main.ONOScli1.appToIDCheck()

        if appCheck != main.TRUE:
            main.log.warn( main.CLIs[ 0 ].apps() )
            main.log.warn( main.CLIs[ 0 ].appIDs() )
            utilities.assert_equals( expect=main.TRUE, actual=appCheck,
                                     onpass="App Ids seem to be correct",
                                     onfail="Something is wrong with app Ids" )
        if cliResults == main.FALSE:
            main.log.error( "Failed to start ONOS,stopping test" )
            main.cleanup()
            main.exit()

    def CASE2( self, main ):
        """
        Discovery the topology using BGPLS
        """
        import os
        import sys
        import re
        import time

        main.case( "Testcase 2 : Discovery the Network Topology using BGPLS" )
        main.ONOScli1.log( "\"testcase2 start\"" )

        try:
            from tests.FUNC.FUNCbgpls.dependencies.Nbdata import BgpLs
        except ImportError:
            main.log.exception( "Something wrong with import file or code error." )
            main.log.info( "Import Error, please check!" )
            main.cleanup()
            main.exit()

        bgplsConfig = BgpLs()
        Ne_id = bgplsConfig.Constants()
        app = bgplsConfig.apps()
        main.CLIs = []
        main.nodes = []
        main.numCtrls = 1

        ipList = os.getenv( main.params[ 'CTRL' ][ 'ip1' ] )
        scapy_ip = os.getenv( main.params[ 'SCAPY' ][ 'HOSTNAMES' ] )
        httpport = main.params[ 'HTTP' ][ 'port' ]
        path = main.params[ 'HTTP' ][ 'path' ]
        bgplsConfig.ipValue( ipList, scapy_ip )

        for i in range( 1, main.numCtrls + 1 ):
            try:
                main.CLIs.append( getattr( main, 'ONOScli' + str( i ) ) )
                main.nodes.append( getattr( main, 'ONOS' + str( i ) ) )
                ipList.append( main.nodes[ -1 ].ip_address )
            except AttributeError:
                break

        main.step( "Apply cell to environment" )
        bgplsConfig.Comments()

        bgplsConfig.Comments()
        main.log.info( "Sending BGPLS information" )
        bgplsConfig.Comments()

        main.Scapy1.handle.sendline( "sudo python  OnosSystemTest/TestON/tests/FUNC/FUNCbgpls/\
        dependencies/Scapyfiles/Topo_discovery.py" )
        bgplsConfig.Comments()
        main.log.info( "Enable BGPlS plugin in ONOS" )
        bgplsConfig.Comments()

        cliResults = main.ONOScli1.startOnosCli( main.nodes[ 0 ].ip_address )

        main.step( "Getting connected to ONOS" )
        utilities.assert_equals( expect=main.TRUE, actual=cliResults,
                                 onpass="ONOS cli startup successful",
                                 onfail="ONOS cli startup failed" )
        installResults = main.ONOScli1.activateApp( app[ 0 ] )

        main.step( "Install onos-app-bgp" )
        utilities.assert_equals( expect=main.TRUE, actual=installResults,
                                 onpass="Install onos-app-bgp successful",
                                 onfail="Install onos-app-bgp failed" )

        bgpls_post = bgplsConfig.DictoJson()

        bgplsConfig.Comments()
        main.log.info( "BGPLS RestConf input" )
        bgplsConfig.Comments()

        print ( bgpls_post )
        main.ONOSrest.user_name = "onos"
        main.ONOSrest.pwd = "rocks"
        Poststatus, result = main.ONOSrest.send( '/network/configuration/', method="POST", data=bgpls_post )
        main.step( "Configure BGP through RESTCONF" )

        utilities.assert_equals( expect='200',
                                 actual=Poststatus,
                                 onpass="Post Port Success",
                                 onfail="Post Port Failed " + str( Poststatus ) + "," + str( result ) )

        bgplsConfig.Comments()
        main.step( "Check Network devices are Updated in ONOS " )
        bgplsConfig.Comments()
        time.sleep( 15 )
        response = main.ONOScli1.devices()
        responseCheck = main.FALSE
        if response:
            responseCheck = main.TRUE
        utilities.assert_equals( expect=main.TRUE,
                                 actual=responseCheck,
                                 onpass="Network Devices update in ONOS successful",
                                 onfail="Network Devices update in ONOS failed" )

        main.step( "Check the nodes are discovered" )
        if response.find( Ne_id[ 1 ][ 0 ] ) and response.find( Ne_id[ 1 ][ 1 ] ) and response.find( Ne_id[ 1 ][ 2 ] ) != -1:
            stepResult = main.TRUE
        else:
            stepResult = main.FALSE
        utilities.assert_equals( expect=main.TRUE,
                                 actual=stepResult,
                                 onpass="Node " + str( Ne_id[ 1 ][ 0 ] ) + ( Ne_id[ 1 ][ 1 ] ) + ( Ne_id[ 1 ][ 2 ] ) + "  sucess",
                                 onfail="Node " + str( Ne_id[ 1 ][ 0 ] ) + ( Ne_id[ 1 ][ 1 ] ) + ( Ne_id[ 1 ][ 2 ] ) + " failed" )
        main.ONOScli1.log( "\"testcase2 end\"" )

        main.step( "Check for Errors or Exception in testcase2" )
        startStr = "testcase2 start"
        endStr = "testcase2 end"
        errorLog = main.ONOSbench.logReport( main.nodes[ 0 ].ip_address,
                                             [ "ERROR", "EXCEPT" ], "s",
                                             startStr, endStr )
        utilities.assert_equals( expect=0, actual=errorLog,
                                 onpass="No Exception or Error occured in testcase2",
                                 onfail="Exception or Error occured in testcase2" )
        bgplsConfig.Comments()
        main.log.info( "Kill Scapy process" )
        bgplsConfig.Comments()

        main.Scapy1.handle.sendline( "\x03" )
        time.sleep( 90 )  # This Sleep time gives time for the socket to close.

    def CASE3( self, main ):
        """
        Addition of new Node to existing topology
        """
        import os
        import sys
        import re
        import time

        main.case( "Testcase 3: Addition of New Node to existing topology" )
        main.ONOScli1.log( "\"testcase3 start\"" )
        try:
            from tests.FUNC.FUNCbgpls.dependencies.Nbdata import BgpLs
        except ImportError:
            main.log.exception( "Something wrong with import file or code error." )
            main.log.info( "Import Error, please check!" )
            main.cleanup()
            main.exit()

        bgplsConfig = BgpLs()
        Ne_id = bgplsConfig.Constants()
        app = bgplsConfig.apps()
        main.CLIs = []
        main.nodes = []
        main.numCtrls = 1

        ipList = os.getenv( main.params[ 'CTRL' ][ 'ip1' ] )
        scapy_ip = os.getenv( main.params[ 'SCAPY' ][ 'HOSTNAMES' ] )
        cellName = main.params[ 'ENV' ][ 'cellName' ]
        cellAppString = main.params[ 'ENV' ][ 'cellApps' ]
        httpport = main.params[ 'HTTP' ][ 'port' ]
        path = main.params[ 'HTTP' ][ 'path' ]

        bgplsConfig.ipValue( ipList, scapy_ip )

        for i in range( 1, main.numCtrls + 1 ):
            try:
                main.CLIs.append( getattr( main, 'ONOScli' + str( i ) ) )
                main.nodes.append( getattr( main, 'ONOS' + str( i ) ) )
                ipList.append( main.nodes[ -1 ].ip_address )
            except AttributeError:
                break

        bgplsConfig.Comments()
        main.log.info( "Sending BGPLS Packet " )
        bgplsConfig.Comments()

        main.Scapy1.handle.sendline( "sudo python  OnosSystemTest/TestON/tests/FUNC/FUNCbgpls/\
        dependencies/Scapyfiles/Update_Node.py" )
        bgplsConfig.Comments()
        main.log.info( "Enable BGPlS plugin in ONOS" )
        bgplsConfig.Comments()

        main.step( "UnInstall onos-app-bgp" )
        installResults = main.ONOScli1.deactivateApp( app[ 0 ] )
        utilities.assert_equals( expect=main.TRUE, actual=installResults,
                                 onpass="Uninstall  onos-app-bgp successful",
                                 onfail="Uninstall  onos-app-bgp failed" )

        installResults = main.ONOScli1.activateApp( app[ 0 ] )
        main.step( "Install onos-app-bgp" )
        utilities.assert_equals( expect=main.TRUE, actual=installResults,
                                 onpass="Install onos-app-bgp successful",
                                 onfail="Install onos-app-bgp failed" )

        bgpls_post = bgplsConfig.DictoJson()

        bgplsConfig.Comments()
        main.log.info( "BGPLS RestConf input" )
        bgplsConfig.Comments()

        bgplsConfig.Comments()
        main.step( "Check Network devices are Updated in ONOS" )
        bgplsConfig.Comments()
        time.sleep( 120 )
        response = main.ONOScli1.devices()
        responseCheck = main.FALSE
        if response:
            responseCheck = main.TRUE
        utilities.assert_equals( expect=main.TRUE,
                                 actual=responseCheck,
                                 onpass="Network Devices update in ONOS successful",
                                 onfail="Network Devices update in ONOS failed" )
        main.step( "Check Newly added Node is getting updated" )

        if response.find( Ne_id[ 1 ][ 3 ] ) != -1:
            stepResult = main.TRUE
        else:
            stepResult = main.FALSE
        utilities.assert_equals( expect=main.TRUE,
                                 actual=stepResult,
                                 onpass="Node " + str( Ne_id[ 1 ][ 3 ] ) + " update  sucess",
                                 onfail="Node " + str( Ne_id[ 1 ][ 3 ] ) + " update failed" )
        main.ONOScli1.log( "\"testcase3 end\"" )

        main.step( "Check for Errors or Exception in testcase3" )
        startStr = "testcase3 start"
        endStr = "testcase3 end"
        errorLog = main.ONOSbench.logReport( main.nodes[ 0 ].ip_address,
                                             [ "ERROR", "EXCEPT" ], "s",
                                             startStr, endStr )
        utilities.assert_equals( expect=0, actual=errorLog,
                                 onpass="No Exception or Error occured in testcase3",
                                 onfail="Exception or Error occured in testcase3" )
        bgplsConfig.Comments()
        main.log.info( "Kill Scapy process" )
        bgplsConfig.Comments()
        main.Scapy1.handle.sendline( "\x03" )
        time.sleep( 90 )  # This Sleep time gives time for the socket to close.

    def CASE4( self, main ):
        """
        Verification of Links in existing topology
        """
        import json
        import time
        import os
        main.case( "Testcase 4: Verification of Links thats is discovered" )
        main.ONOScli1.log( "\"testcase4 start\"" )
        try:
            from tests.FUNC.FUNCbgpls.dependencies.Nbdata import BgpLs
        except ImportError:
            main.log.exception( "Something wrong with import file or code error." )
            main.log.info( "Import Error, please check!" )
            main.cleanup()
            main.exit()

        bgplsConfig = BgpLs()
        app = bgplsConfig.apps()
        main.CLIs = []
        main.nodes = []
        main.numCtrls = 1
        ipList = os.getenv( main.params[ 'CTRL' ][ 'ip1' ] )
        scapy_ip = os.getenv( main.params[ 'SCAPY' ][ 'HOSTNAMES' ] )
        bgplsConfig.ipValue( ipList, scapy_ip )

        for i in range( 1, main.numCtrls + 1 ):
            try:
                main.CLIs.append( getattr( main, 'ONOScli' + str( i ) ) )
                main.nodes.append( getattr( main, 'ONOS' + str( i ) ) )
                ipList.append( main.nodes[ -1 ].ip_address )
            except AttributeError:
                break

        bgplsConfig.Comments()
        main.log.info( "Sending BGPLS Link information Packet " )
        bgplsConfig.Comments()

        main.Scapy1.handle.sendline( "sudo python  OnosSystemTest/TestON/tests/FUNC/FUNCbgpls/dependencies/Scapyfiles/Link_Update_Node.py" )
        bgplsConfig.Comments()
        main.log.info( "Enable BGPlS plugin in ONOS" )
        bgplsConfig.Comments()

        main.step( "UnInstall onos-app-bgp" )
        installResults = main.ONOScli1.deactivateApp( app[ 0 ] )
        utilities.assert_equals( expect=main.TRUE, actual=installResults,
                                 onpass="Uninstall  onos-app-bgp successful",
                                 onfail="Uninstall  onos-app-bgp failed" )

        installResults = main.ONOScli1.activateApp( app[ 0 ] )
        main.step( "Install onos-app-bgp" )
        utilities.assert_equals( expect=main.TRUE, actual=installResults,
                                 onpass="Install onos-app-bgp successful",
                                 onfail="Install onos-app-bgp failed" )
        bgplsConfig.Comments()
        main.step( "Checking the Link Discovery Status" )
        bgplsConfig.Comments()
        time.sleep( 120 )   # Time taken to discovery the links
        response = main.ONOScli1.links()
        linksResp = json.loads( response )
        check_link = bgplsConfig.checkLinks( linksResp )

        if check_link:
            reply_Check_Link = main.TRUE
        utilities.assert_equals( expect=main.TRUE, actual=reply_Check_Link,
                                 onpass="Link Discovery Success.",
                                 onfail="Link Discovery Failed." )
        main.ONOScli1.log( "\"testcase4 end\"" )

        main.step( "Check for Errors or Exception in testcase4 " )
        startStr = "testcase4 start"
        endStr = "testcase4 end"
        errorLog = main.ONOSbench.logReport( main.nodes[ 0 ].ip_address,
                                             [ "ERROR", "EXCEPT" ], "s",
                                             startStr, endStr )
        utilities.assert_equals( expect=0, actual=errorLog,
                                 onpass="No Exception or Error occured in testcase4",
                                 onfail="Exception or Error occured in testcase4" )
        bgplsConfig.Comments()
        main.log.info( "Kill Scapy process" )
        bgplsConfig.Comments()
        main.Scapy1.handle.sendline( "\x03" )
        time.sleep( 90 )

    def CASE5( self, main ):
        """
        Deletion of  links
        """
        import json
        import time
        import os
        main.case( "Testcase 5: Deletion of Link in existing topology" )

        main.ONOScli1.log( "\"testcase5 start\"" )
        try:
            from tests.FUNC.FUNCbgpls.dependencies.Nbdata import BgpLs
        except ImportError:
            main.log.exception( "Something wrong with import file or code error." )
            main.log.info( "Import Error, please check!" )
            main.cleanup()
            main.exit()

        bgplsConfig = BgpLs()
        app = bgplsConfig.apps()
        main.CLIs = []
        main.nodes = []
        main.numCtrls = 1
        ipList = os.getenv( main.params[ 'CTRL' ][ 'ip1' ] )
        scapy_ip = os.getenv( main.params[ 'SCAPY' ][ 'HOSTNAMES' ] )
        bgplsConfig.ipValue( ipList, scapy_ip )

        for i in range( 1, main.numCtrls + 1 ):
            try:
                main.CLIs.append( getattr( main, 'ONOScli' + str( i ) ) )
                main.nodes.append( getattr( main, 'ONOS' + str( i ) ) )
                ipList.append( main.nodes[ -1 ].ip_address )
            except AttributeError:
                break

        bgplsConfig.Comments()
        main.log.info( "Sending BGPLS Delete Link Packet " )
        bgplsConfig.Comments()

        main.Scapy1.handle.sendline( "sudo python  OnosSystemTest/TestON/tests/FUNC/FUNCbgpls/dependencies/Scapyfiles/Deletion_Node.py" )
        bgplsConfig.Comments()
        main.log.info( "Enable BGPlS plugin in ONOS " )
        bgplsConfig.Comments()

        main.step( "UnInstall onos-app-bgp" )
        installResults = main.ONOScli1.deactivateApp( app[ 0 ] )
        utilities.assert_equals( expect=main.TRUE, actual=installResults,
                                 onpass="Uninstall  onos-app-bgp successful",
                                 onfail="Uninstall  onos-app-bgp failed" )

        installResults = main.ONOScli1.activateApp( app[ 0 ] )
        main.step( "Install onos-app-bgp" )
        utilities.assert_equals( expect=main.TRUE, actual=installResults,
                                 onpass="Install onos-app-bgp successful",
                                 onfail="Install onos-app-bgp failed" )
        bgplsConfig.Comments()
        main.step( "Checking whether the links is deleted" )
        bgplsConfig.Comments()
        time.sleep( 120 )  # Time taken to discovery the links
        response = main.ONOScli1.links()
        linksResp = json.loads( response )
        check_link = bgplsConfig.checkLinks( linksResp )
        if not check_link:
            reply_Check_Link = main.TRUE
        utilities.assert_equals( expect=main.TRUE, actual=reply_Check_Link,
                                 onpass="Link is Deleted Successfully.",
                                 onfail="Link is Deletion Failed." )
        main.ONOScli1.log( "\"testcase5 end\"" )

        main.step( "Check for Errors or Exception in testcase5" )
        startStr = "testcase5 start"
        endStr = "testcase5 end"
        errorLog = main.ONOSbench.logReport( main.nodes[ 0 ].ip_address,
                                             [ "ERROR", "EXCEPT" ], "s",
                                             startStr, endStr )
        utilities.assert_equals( expect=0, actual=errorLog,
                                 onpass="No Exception or Error occured in testcase5",
                                 onfail="Exception or Error occured in testcase5" )
        bgplsConfig.Comments()
        main.log.info( "Kill Scapy process" )
        bgplsConfig.Comments()
        main.Scapy1.handle.sendline( "\x03" )
        time.sleep( 90 )

    def CASE6( self, main ):
        """
        Uninstalling the app
        """
        import os
        import sys
        import re
        import time

        main.case( "TestCase 6: UnInstalling of app" )
        main.ONOScli1.log( "\"testcase6 start\"" )
        try:
            from tests.FUNC.FUNCbgpls.dependencies.Nbdata import BgpLs
        except ImportError:
            main.log.exception( "Something wrong with import file or code error." )
            main.log.info( "Import Error, please check!" )
            main.cleanup()
            main.exit()

        bgplsConfig = BgpLs()
        app = bgplsConfig.apps()
        main.CLIs = []
        main.nodes = []
        main.numCtrls = 1

        ipList = os.getenv( main.params[ 'CTRL' ][ 'ip1' ] )
        scapy_ip = os.getenv( main.params[ 'SCAPY' ][ 'HOSTNAMES' ] )
        cellName = main.params[ 'ENV' ][ 'cellName' ]
        cellAppString = main.params[ 'ENV' ][ 'cellApps' ]

        bgplsConfig = BgpLs()
        bgplsConfig.ipValue( ipList, scapy_ip )
        main.ONOSbench.createCellFile( main.ONOSbench.ip_address, cellName,
                                       scapy_ip,
                                       cellAppString, ipList, main.ONOScli1.karafUser )

        for i in range( 1, main.numCtrls + 1 ):
            try:
                main.CLIs.append( getattr( main, 'ONOScli' + str( i ) ) )
                main.nodes.append( getattr( main, 'ONOS' + str( i ) ) )
                ipList.append( main.nodes[ -1 ].ip_address )
            except AttributeError:
                break

        main.step( "Apply cell to environment" )
        bgplsConfig.Comments()
        cellResult = main.ONOSbench.setCell( cellName )

        bgplsConfig.Comments()
        main.step( "Logging into ONOS CLI " )
        bgplsConfig.Comments()

        cliResults = main.ONOScli1.startOnosCli( main.nodes[ 0 ].ip_address )
        utilities.assert_equals( expect=main.TRUE, actual=cliResults,
                                 onpass="ONOS cli startup successful",
                                 onfail="ONOS cli startup failed" )

        bgplsConfig.Comments()
        main.log.info( "Uninstall onos-app-bgp" )
        bgplsConfig.Comments()
        main.step( "UnInstall onos-app-bgp" )
        installResults = main.ONOScli1.deactivateApp( app[ 0 ] )
        utilities.assert_equals( expect=main.TRUE, actual=installResults,
                                 onpass="Uninstall  onos-app-bgp successful",
                                 onfail="Uninstall  onos-app-bgp failed" )

        main.ONOScli1.log( "\"testcase6 end\"" )
        main.step( "Check for Errors or Exception in testcase6" )
        startStr = "testcase6 start"
        endStr = "testcase6 end"
        errorLog = main.ONOSbench.logReport( main.nodes[ 0 ].ip_address,
                                             [ "ERROR", "EXCEPT" ], "s",
                                             startStr, endStr )
        utilities.assert_equals( expect=0, actual=errorLog,
                                 onpass="No Exception or Error occured in testcase6",
                                 onfail="Exception or Error occured in testcase6" )

        main.step( "Check for Errors or Exception End of the Script" )
        errorLog = main.ONOSbench.logReport( main.nodes[ 0 ].ip_address,
                                             [ "ERROR", "EXCEPT" ] )
        utilities.assert_equals( expect=0, actual=errorLog,
                                 onpass="No Exception or Error occured",
                                 onfail="Exception or Error occured" )