Expand dependency injection test coverage
Expand dependency injection test coverage

Change-Id: I381bfb8c0f777d421b5cf0a4c1d1ef38486e1b59

ilay09/keystone,derekchiang/keystone,cbrucks/Federated_Keystone,UTSA-ICS/keystone-kerberos,jamielennox/keystone,idjaw/keystone,townbull/keystone-dtrust,cloudbau/keystone,maestro-hybrid-cloud/keystone,kwss/keystone,nuxeh/keystone,cernops/keystone,ging/keystone,rushiagr/keystone,cloudbau/keystone,JioCloud/keystone,cbrucks/Federated_Keystone,reeshupatel/demo,townbull/keystone-dtrust,jamielennox/keystone,promptworks/keystone,ntt-sic/keystone,kwss/keystone,rajalokan/keystone,rajalokan/keystone,openstack/keystone,townbull/keystone-dtrust,ntt-sic/keystone,ajayaa/keystone,ntt-sic/keystone,nuxeh/keystone,roopali8/keystone,rickerc/keystone_audit,ajayaa/keystone,vivekdhayaal/keystone,takeshineshiro/keystone,mahak/keystone,openstack/keystone,vivekdhayaal/keystone,reeshupatel/demo,himanshu-setia/keystone,promptworks/keystone,jonnary/keystone,citrix-openstack-build/keystone,rickerc/keystone_audit,promptworks/keystone,dims/keystone,derekchiang/keystone,rajalokan/keystone,rushiagr/keystone,himanshu-setia/keystone,nuxeh/keystone,klmitch/keystone,MaheshIBM/keystone,openstack/keystone,ging/keystone,dstanek/keystone,rickerc/keystone_audit,UTSA-ICS/keystone-kerberos,rodrigods/keystone,kwss/keystone,blueboxgroup/keystone,mahak/keystone,jumpstarter-io/keystone,blueboxgroup/keystone,reeshupatel/demo,klmitch/keystone,takeshineshiro/keystone,rodrigods/keystone,idjaw/keystone,citrix-openstack-build/keystone,ilay09/keystone,mahak/keystone,dims/keystone,dsiddharth/access-keys,citrix-openstack-build/keystone,vivekdhayaal/keystone,jumpstarter-io/keystone,ilay09/keystone,jumpstarter-io/keystone,maestro-hybrid-cloud/keystone,cbrucks/Federated_Keystone,cloudbau/keystone,dsiddharth/access-keys,rushiagr/keystone,derekchiang/keystone,dstanek/keystone,JioCloud/keystone,dsiddharth/access-keys,roopali8/keystone,dstanek/keystone,MaheshIBM/keystone,jonnary/keystone,cernops/keystone