Fix misuse of assertTrue
Fix misuse of assertTrue

Replace assertTrue with assertEqual.

Change-Id: I9ffa265082a8c67bccfe3459426f18b9a51bd46d
Closes-Bug: #1647993

hanlind/nova,Juniper/nova,jianghuaw/nova,openstack/nova,rajalokan/nova,openstack/nova,rajalokan/nova,rajalokan/nova,mikalstill/nova,klmitch/nova,openstack/nova,vmturbo/nova,rahulunair/nova,rahulunair/nova,klmitch/nova,klmitch/nova,hanlind/nova,Juniper/nova,mahak/nova,mikalstill/nova,phenoxim/nova,mahak/nova,phenoxim/nova,Juniper/nova,mikalstill/nova,hanlind/nova,gooddata/openstack-nova,Juniper/nova,gooddata/openstack-nova,gooddata/openstack-nova,jianghuaw/nova,vmturbo/nova,gooddata/openstack-nova,rahulunair/nova,rajalokan/nova,klmitch/nova,jianghuaw/nova,jianghuaw/nova,mahak/nova,vmturbo/nova,vmturbo/nova