This patch adds following missing Ceilometer CLI tests -
1. help
2. bash completion
In addition to this following optional arguments are also verified.
1. --debug
It also modifies existing code to check outputs of different tests.
Earlier these were uploaded under -
https://review.openstack.org/#/c/100190/
Change-Id: I2a00918e4ecbaac7d08f07ebaaa587dde7d8eee5
f903d68b94