
To make test cases more clearly, split test_identity.py into test_user.py, test_role, etc. Add more test cases for user, role, etc. Furthermore, to make functional tests run repeatedly without raising duplicated error, clean up resources before exiting each test case. Change-Id: I1541943ad0b8d4d8d1e72822c159fda243b3d1d7 Implements: blueprint identity-functional-tests