CBQE-1518: added test case for capi mode

Change-Id: I6db2f1bdef8c1d1062074bfc011f310ac870e943
Reviewed-on: http://review.couchbase.org/30398
Reviewed-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>
Tested-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>