More test cases for the node_list api
More test cases for the node_list api

Added test cases to ensure the parameter checkings are actually
effective.

tengqm/senlin,openstack/senlin,tengqm/senlin,Alzon/senlin,Alzon/senlin,stackforge/senlin,tengqm/senlin-container,openstack/senlin,openstack/senlin,tengqm/senlin-container,stackforge/senlin