CBQE-1531: add more tests for json non-doc

Change-Id: I11624a1fac2bd2fe49fc3003aeed2a088c9248d8
Reviewed-on: http://review.couchbase.org/29542
Reviewed-by: Ketaki Gangal <ketakigangal@gmail.com>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>