Add missing unit test for NVP metadata_mode option
Add missing unit test for NVP metadata_mode option

Note: I didn't squash this change in my patch that made the default
transport type configurable because this change was not in grizzly
and we do not want to backport it.

Change-Id: Ie71e5e56d1bed219caba74799cc2310ace987b8f

jacknjzhou/neutron,rdo-management/neutron,blueboxgroup/neutron,jumpojoy/neutron,CiscoSystems/quantum,wenhuizhang/neutron,oeeagle/quantum,mattt416/neutron,mmnelemane/neutron,silenci/neutron,projectcalico/calico-neutron,sajuptpm/neutron-ipam,openstack/neutron,watonyweng/neutron,jacknjzhou/neutron,Brocade-OpenSource/OpenStack-DNRM-Neutron,kaiweifan/neutron,CiscoSystems/vespa,waltBB/neutron_read,barnsnake351/neutron,Juniper/neutron,dhanunjaya/neutron,ykaneko/neutron,vveerava/Openstack,huntxu/neutron,CiscoSystems/vespa,sebrandon1/neutron,cernops/neutron,paninetworks/neutron,leeseuljeong/leeseulstack_neutron,ykaneko/quantum,ykaneko/neutron,Metaswitch/calico-neutron,huntxu/neutron,shahbazn/neutron,Juniper/contrail-dev-neutron,netscaler/neutron,redhat-openstack/neutron,cernops/neutron,cloudbase/neutron,sajuptpm/neutron-ipam,armando-migliaccio/neutron,vbannai/neutron,openstack/neutron,virtualopensystems/neutron,Comcast/neutron,cisco-openstack/neutron,glove747/liberty-neutron,sajuptpm/neutron-ipam,vivekanand1101/neutron,Stavitsky/neutron,rdo-management/neutron,igor-toga/local-snat,takeshineshiro/neutron,CiscoSystems/neutron,silenci/neutron,leeseuljeong/leeseulstack_neutron,zhhf/charging,vijayendrabvs/ssl-neutron,armando-migliaccio/neutron,vveerava/Openstack,MaximNevrov/neutron,bgxavier/neutron,vijayendrabvs/hap,klmitch/neutron,infobloxopen/neutron,pnavarro/neutron,eonpatapon/neutron,gopal1cloud/neutron,armando-migliaccio/neutron,kaiweifan/neutron,chitr/neutron,Juniper/neutron,Juniper/neutron,NeCTAR-RC/neutron,chitr/neutron,pnavarro/neutron,infobloxopen/neutron,citrix-openstack-build/neutron,netscaler/neutron,neoareslinux/neutron,gkotton/neutron,javaos74/neutron,NeCTAR-RC/neutron,Comcast/neutron,adelina-t/neutron,noironetworks/neutron,skyddv/neutron,Juniper/contrail-dev-neutron,bigswitch/neutron,alexandrucoman/vbox-neutron-agent,aristanetworks/neutron,leeseulstack/openstack,CiscoSystems/vespa,oeeagle/quantum,mahak/neutron,yanheven/neutron,suneeth51/neutron,yanheven/neutron,sasukeh/neutron,magic0704/neutron,asgard-lab/neutron,yamahata/tacker,mahak/neutron,yamahata/tacker,yuewko/neutron,gopal1cloud/neutron,beagles/neutron_hacking,suneeth51/neutron,vijayendrabvs/ssl-neutron,bigswitch/neutron,Brocade-OpenSource/OpenStack-DNRM-Neutron,cloudbase/neutron,javaos74/neutron,citrix-openstack-build/neutron,apporc/neutron,neoareslinux/neutron,MaximNevrov/neutron,aristanetworks/neutron,rickerc/neutron_audit,beagles/neutron_hacking,cloudbase/neutron-virtualbox,SamYaple/neutron,JioCloud/neutron,dhanunjaya/neutron,swdream/neutron,ntt-sic/neutron,ykaneko/quantum,skyddv/neutron,alexandrucoman/vbox-neutron-agent,blueboxgroup/neutron,antonioUnina/neutron,mmnelemane/neutron,vijayendrabvs/hap,CiscoSystems/neutron,watonyweng/neutron,glove747/liberty-neutron,igor-toga/local-snat,jumpojoy/neutron,ntt-sic/neutron,netscaler/neutron,leeseulstack/openstack,dims/neutron,yamahata/neutron,CiscoSystems/quantum,vijayendrabvs/ssl-neutron,blueboxgroup/neutron,yamahata/neutron,mattt416/neutron,virtualopensystems/neutron,armando-migliaccio/neutron,virtualopensystems/neutron,yamahata/tacker,cloudbase/neutron-virtualbox,jerryz1982/neutron,Comcast/neutron,leeseuljeong/leeseulstack_neutron,barnsnake351/neutron,Juniper/contrail-dev-neutron,vveerava/Openstack,zhhf/charging,CiscoSystems/quantum,mandeepdhami/neutron,vbannai/neutron,rickerc/neutron_audit,sebrandon1/neutron,klmitch/neutron,bgxavier/neutron,openstack/neutron,beagles/neutron_hacking,JioCloud/neutron,jerryz1982/neutron,ntt-sic/neutron,rickerc/neutron_audit,vbannai/neutron,gkotton/neutron,CiscoSystems/neutron,citrix-openstack-build/neutron,yamahata/neutron,dims/neutron,sasukeh/neutron,ykaneko/quantum,SmartInfrastructures/neutron,ykaneko/quantum,SamYaple/neutron,zhhf/charging,Brocade-OpenSource/OpenStack-DNRM-Neutron,apporc/neutron,vijayendrabvs/hap,magic0704/neutron,waltBB/neutron_read,miyakz1192/neutron,JianyuWang/neutron,takeshineshiro/neutron,redhat-openstack/neutron,paninetworks/neutron,Metaswitch/calico-neutron,mandeepdhami/neutron,wolverineav/neutron,JianyuWang/neutron,leeseulstack/openstack,eonpatapon/neutron,antonioUnina/neutron,swdream/neutron,vivekanand1101/neutron,wolverineav/neutron,cisco-openstack/neutron,projectcalico/calico-neutron,yuewko/neutron,gkotton/neutron,shahbazn/neutron,eayunstack/neutron,wenhuizhang/neutron,kaiweifan/neutron,adelina-t/neutron,miyakz1192/neutron,Stavitsky/neutron,eayunstack/neutron,asgard-lab/neutron,SmartInfrastructures/neutron,ykaneko/neutron,noironetworks/neutron,mahak/neutron