CBQE-1643: Add tests for configurable ports

Change-Id: Iea1cdd13b026e3c81eebd4caceebb5bf1a841280
Reviewed-on: http://review.couchbase.org/30999
Reviewed-by: Tommie McAfee <tommie@couchbase.com>
Tested-by: Ketaki Gangal <ketakigangal@gmail.com>