CBQE-0: add pause to test

Change-Id: Ib45098b8bec57c1499a8f1b9243e25a18b45fcde
Reviewed-on: http://review.couchbase.org/28535
Reviewed-by: Iryna Mironava <irynamironava@yandex.ru>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>