We intend to add 10 stack_snapshot to the test data but only got 1
We intend to add 10 stack_snapshot to the test data but only got 1

    the same snapshot 'id' being added to the TestDataContainer in the iteration,
    so we only got 1 finally. Make the 'id' different for each add() method.

Change-Id: Ie62b08c4e898d6ca7c4f75808fcb4119cd92d9ec

openstack/horizon,ChameleonCloud/horizon,NeCTAR-RC/horizon,openstack/horizon,openstack/horizon,yeming233/horizon,openstack/horizon,noironetworks/horizon,NeCTAR-RC/horizon,BiznetGIO/horizon,ChameleonCloud/horizon,ChameleonCloud/horizon,noironetworks/horizon,BiznetGIO/horizon,yeming233/horizon,yeming233/horizon,BiznetGIO/horizon,BiznetGIO/horizon,NeCTAR-RC/horizon,yeming233/horizon,ChameleonCloud/horizon,NeCTAR-RC/horizon,noironetworks/horizon,noironetworks/horizon