Add missing tests for nova.db.api.quota_* methods
Add missing tests for nova.db.api.quota_* methods

blueprint db-api-tests

Change-Id: I2ecbe7ee30359fa9394869503d363beab105675d

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