Add tests for gnocchi states and modules

Depends-On: I7341dfb26a39275e1a9b55f7a49fd2ace9584612
Change-Id: Ie3dcfe13550a0bc541ddd8d0f1895757526e1d89
Related-Prod: https://mirantis.jira.com/browse/PROD-20719
2 files changed