CBQE-2474: update n1ql tests

Change-Id: Ie154e100df19ed03df0efac6da5eceaf72bfa4bf
Reviewed-on: http://review.couchbase.org/43563
Reviewed-by: Iryna Mironava <irynamironava@yandex.ru>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>