Add more unit tests for clituils
Add more unit tests for clituils

Add more unit tests for clituils after add new functionality.

Change-Id: I27793a7d3360eeb48b2ab628e3772458cc232a65
Depends-On: be5e26a176f039faf1169cff63af4c6f1ebb2e9e

NaohiroTamura/python-ironicclient,openstack/python-ironicclient,openstack/python-ironicclient,NaohiroTamura/python-ironicclient