Restore self.test_instance at LibvirtConnTestCase.setUp()
Restore self.test_instance at LibvirtConnTestCase.setUp()

And correct a test, which used to pass wrongly.

Change-Id: Ia0ffe96b44eaea39fa0957efcc31303c1d9fcb18

dstroppa/openstack-smartos-nova-grizzly,thomasem/nova,vladikr/nova_drafts,eharney/nova,JianyuWang/nova,fnordahl/nova,petrutlucian94/nova_dev,petrutlucian94/nova,badock/nova,citrix-openstack-build/nova,vmturbo/nova,imsplitbit/nova,aristanetworks/arista-ovs-nova,maheshp/novatest,cernops/nova,gooddata/openstack-nova,houshengbo/nova_vmware_compute_driver,rickerc/nova_audit,vmturbo/nova,mgagne/nova,gooddata/openstack-nova,edulramirez/nova,klmitch/nova,tudorvio/nova,alexandrucoman/vbox-nova-driver,ted-gould/nova,spring-week-topos/nova-week,houshengbo/nova_vmware_compute_driver,mikalstill/nova,redhat-openstack/nova,takeshineshiro/nova,jianghuaw/nova,eharney/nova,angdraug/nova,kimjaejoong/nova,ntt-sic/nova,citrix-openstack-build/nova,jianghuaw/nova,orbitfp7/nova,cyx1231st/nova,mikalstill/nova,yatinkumbhare/openstack-nova,BeyondTheClouds/nova,rajalokan/nova,blueboxgroup/nova,sebrandon1/nova,openstack/nova,shail2810/nova,JioCloud/nova,luogangyi/bcec-nova,CloudServer/nova,shail2810/nova,maelnor/nova,gspilio/nova,NeCTAR-RC/nova,affo/nova,Yusuke1987/openstack_template,rickerc/nova_audit,alvarolopez/nova,phenoxim/nova,rajalokan/nova,klmitch/nova,mmnelemane/nova,MountainWei/nova,bigswitch/nova,eonpatapon/nova,dims/nova,watonyweng/nova,alvarolopez/nova,dstroppa/openstack-smartos-nova-grizzly,CiscoSystems/nova,rrader/nova-docker-plugin,joker946/nova,yosshy/nova,DirectXMan12/nova-hacking,plumgrid/plumgrid-nova,devendermishrajio/nova_test_latest,fajoy/nova,apporc/nova,spring-week-topos/nova-week,yrobla/nova,jeffrey4l/nova,yatinkumbhare/openstack-nova,hanlind/nova,tangfeixiong/nova,bclau/nova,hanlind/nova,NeCTAR-RC/nova,SUSE-Cloud/nova,virtualopensystems/nova,tudorvio/nova,ruslanloman/nova,BeyondTheClouds/nova,maelnor/nova,tealover/nova,eonpatapon/nova,raildo/nova,sridevikoushik31/nova,tianweizhang/nova,watonyweng/nova,tianweizhang/nova,kimjaejoong/nova,openstack/nova,LoHChina/nova,cloudbau/nova,eayunstack/nova,thomasem/nova,varunarya10/nova_test_latest,felixma/nova,apporc/nova,scripnichenko/nova,shootstar/novatest,imsplitbit/nova,DirectXMan12/nova-hacking,nikesh-mahalka/nova,nikesh-mahalka/nova,leilihh/novaha,shootstar/novatest,sridevikoushik31/openstack,Juniper/nova,dstroppa/openstack-smartos-nova-grizzly,leilihh/novaha,badock/nova,zhimin711/nova,phenoxim/nova,gooddata/openstack-nova,TieWei/nova,saleemjaveds/https-github.com-openstack-nova,cyx1231st/nova,barnsnake351/nova,projectcalico/calico-nova,adelina-t/nova,Metaswitch/calico-nova,sacharya/nova,blueboxgroup/nova,affo/nova,CloudServer/nova,bigswitch/nova,vladikr/nova_drafts,belmiromoreira/nova,OpenAcademy-OpenStack/nova-scheduler,takeshineshiro/nova,saleemjaveds/https-github.com-openstack-nova,jeffrey4l/nova,tanglei528/nova,ewindisch/nova,maoy/zknova,qwefi/nova,rahulunair/nova,CEG-FYP-OpenStack/scheduler,isyippee/nova,sridevikoushik31/openstack,vmturbo/nova,petrutlucian94/nova,berrange/nova,joker946/nova,yrobla/nova,jianghuaw/nova,mahak/nova,rajalokan/nova,isyippee/nova,akash1808/nova_test_latest,double12gzh/nova,Tehsmash/nova,ted-gould/nova,sacharya/nova,j-carpentier/nova,vmturbo/nova,aristanetworks/arista-ovs-nova,rrader/nova-docker-plugin,alaski/nova,openstack/nova,qwefi/nova,JianyuWang/nova,CiscoSystems/nova,DirectXMan12/nova-hacking,akash1808/nova,double12gzh/nova,adelina-t/nova,felixma/nova,yrobla/nova,maheshp/novatest,Yuriy-Leonov/nova,ewindisch/nova,rahulunair/nova,TwinkleChawla/nova,mandeepdhami/nova,yosshy/nova,bclau/nova,CEG-FYP-OpenStack/scheduler,bgxavier/nova,CCI-MOC/nova,maoy/zknova,Triv90/Nova,j-carpentier/nova,Juniper/nova,cernops/nova,devendermishrajio/nova,zhimin711/nova,maheshp/novatest,SUSE-Cloud/nova,ntt-sic/nova,shahar-stratoscale/nova,varunarya10/nova_test_latest,cernops/nova,JioCloud/nova_test_latest,projectcalico/calico-nova,cloudbase/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,dawnpower/nova,plumgrid/plumgrid-nova,viggates/nova,klmitch/nova,houshengbo/nova_vmware_compute_driver,Yusuke1987/openstack_template,ruslanloman/nova,mahak/nova,gspilio/nova,akash1808/nova_test_latest,TieWei/nova,edulramirez/nova,MountainWei/nova,maoy/zknova,raildo/nova,leilihh/nova,shahar-stratoscale/nova,dims/nova,belmiromoreira/nova,redhat-openstack/nova,aristanetworks/arista-ovs-nova,silenceli/nova,cloudbau/nova,cloudbase/nova,tanglei528/nova,noironetworks/nova,tangfeixiong/nova,petrutlucian94/nova_dev,silenceli/nova,viggates/nova,mahak/nova,CCI-MOC/nova,Juniper/nova,Francis-Liu/animated-broccoli,orbitfp7/nova,hanlind/nova,eayunstack/nova,Triv90/Nova,cloudbase/nova-virtualbox,TwinkleChawla/nova,Stavitsky/nova,Metaswitch/calico-nova,sridevikoushik31/nova,angdraug/nova,Triv90/Nova,whitepages/nova,dawnpower/nova,JioCloud/nova,virtualopensystems/nova,rajalokan/nova,gspilio/nova,jianghuaw/nova,cloudbase/nova,zzicewind/nova,Stavitsky/nova,tealover/nova,BeyondTheClouds/nova,whitepages/nova,Francis-Liu/animated-broccoli,devoid/nova,sebrandon1/nova,gooddata/openstack-nova,fajoy/nova,sridevikoushik31/nova,fajoy/nova,devendermishrajio/nova,alexandrucoman/vbox-nova-driver,sridevikoushik31/nova,berrange/nova,iuliat/nova,cloudbase/nova-virtualbox,sridevikoushik31/openstack,LoHChina/nova,barnsnake351/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,zzicewind/nova,mmnelemane/nova,sebrandon1/nova,devoid/nova,OpenAcademy-OpenStack/nova-scheduler,zaina/nova,Juniper/nova,mikalstill/nova,alaski/nova,rahulunair/nova,Yuriy-Leonov/nova,mandeepdhami/nova,fnordahl/nova,scripnichenko/nova,mgagne/nova,zaina/nova,luogangyi/bcec-nova,Tehsmash/nova,akash1808/nova,noironetworks/nova,klmitch/nova,devendermishrajio/nova_test_latest,iuliat/nova,leilihh/nova,JioCloud/nova_test_latest,bgxavier/nova